Constellation Monoceros (Unicorn)

Properties
Monoceros is an inconspicuous constellation surrounded by conspicuous constellations like Gemini in the north, Orion in the west and Canis Maior in the south. The band of the Milky Way runs across the constellation and supplies it with a multitude of open star clusters and bright, diffuse nebulae - including the star cluster of the Rosette Nebula, which can be seen with the naked eye. The constellation area is 482 square degrees and the center culminates around midnight on January 5th. [9, 15]
Stars with Proper Names:
- ?: Plaskett's Star
Deep-Sky Object Descriptions

History
Although unicorns play an essential role in numerous legends and fables, this constellation was not yet known in ancient times. It was included in his star map by Kepler's son-in-law, the mathematician Jakob Bartsch, in 1624 after it had been used sporadically beforehand. [7] Others attribute this constellation to Johannes Hevelius, who is said to have drawn it a few decades later, in 1690. [21]
Catalogs
HR | B | F | DM | HD | SAO | FK5 | IR | M* | ADS | VarID | RA | Dec | vMag | spType | dMag | Sep ["] | Remarks |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
HR 2107 | 1 | BD-09 1284 | 40535 | 132714 | V474 Mon | 05 59 01.0 | -09 22 56 | 6.12 | F2IV | SB:15.492d.,VAR:Delta Sct 5.93 - 6.36V, amp. 0.38 B, 0.13372, 0.13612 and 0.08261d; amp. var. in 7.7455d. Multiple periods. | |||||||
HR 2108 | 2 | BD-09 1285 | 40536 | 132715 | 2455 | 05 59 04.3 | -09 33 30 | 5.03 | A6IIIm vs | SB:9.3553d, K 57.1k/s, V0 +22.2k/s, asini 7.18. | |||||||
HR 2128 | 3 | BD-10 1349 | 40967 | 151037 | 4615 | 06 01 50.4 | -10 35 53 | 4.95 | B5III | 3.5 | 1.9 | D:Binary.,SB:ADS 4615A. | |||||
HR 2142 | BD-06 1391 | 41335 | 132793 | 2817 | 06 04 13.5 | -06 42 33 | 5.21 | B2Ven v | RV:Rapidly rotating and variable hydrogen lines suggest recent ejection of equatorial shell.,S:Shell star.,VAR:5.20 - 5.23V, 80.85d, periodic shell phenomena. | ||||||||
HR 2150 | BD-10 1368 | 41547 | 151098 | 06 05 27.0 | -10 14 34 | 5.87 | dF4 | ||||||||||
HR 2154 | BD-04 1362 | 41692 | 132841 | 2467 | 4698 | 06 06 38.7 | -04 11 38 | 5.38 | B5IV | 6.2 | 28.5 | ||||||
HR 2179 | BD-05 1523 | 42278 | 132900 | 06 09 36.2 | -05 42 40 | 6.17 | F3IV w | ||||||||||
HR 2195 | BD-06 1439 | 42536 | 132924 | V653 Mon | 06 11 01.3 | -06 45 15 | 6.15 | A0pSrCr | VAR:Alpha CV, amp. 0.04U, 1.36:d. | ||||||||
HR 2202 | BD-04 1393 | 42657 | 132941 | 4799 | V638 Mon | 06 11 43.7 | -04 39 56 | 6.18 | B9pHgMn | 1.7 | 0.8 | VAR:Alpha CV 6.16 - 6.18V, amp. 0.02y, 0.724d. | |||||
HR 2205 | BD-06 1446 | 42690 | 132944 | 06 11 51.8 | -06 33 01 | 5.05 | B2V | ||||||||||
HR 2224 | BD-04 1421 | 43157 | 133003 | 4846 | 06 14 36.7 | -04 34 06 | 5.83 | B5V | 6.0 | 1.7 | |||||||
HR 2227 | γ | 5 | BD-06 1469 | 43232 | 133012 | 2475 | I | 4853 | 06 14 51.3 | -06 16 29 | 3.98 | K1.5IIIBa0.3 | 9.0 | 51.4 | N:Called Alpha Mon in BAC and many early catalogues. Now HR 2970 is called Alpha Mon. | ||
HR 2234 | BD-04 1431 | 43319 | 133027 | 4865 | 06 15 29.7 | -04 54 55 | 5.99 | A5IV s | 4.2 | 4.1 | |||||||
HR 2237 | BD-08 1368 | 43362 | 133029 | 4866 | 06 15 26.0 | -09 02 07 | 6.10 | B9III | 0.0 | 0.2 | D:132.7y, e 0.52, a 0.24", i 55.7d, mag. diff 0.3.,DYN:0.005". | ||||||
HR 2255 | 6 | BD-10 1455 | 43760 | 151318 | 06 17 35.2 | -10 43 31 | 6.75 | F0Del Del | |||||||||
HR 2267 | BD-09 1411 | 43993 | 133091 | I | 06 18 50.6 | -09 23 25 | 5.36 | K1.5III | |||||||||
HR 2270 | BD-08 1386 | 44037 | 133098 | 06 19 07.9 | -08 35 11 | 6.22 | B9V | ||||||||||
HR 2273 | 7 | BD-07 1373 | 44112 | 133114 | 1170 | S | 06 19 42.8 | -07 49 23 | 5.27 | B2.5V | |||||||
HR 2280 | BD+02 1197 | 44333 | 113758 | 4971 | 2932 | 06 21 25.8 | +02 16 07 | 6.31 | A4.5V | 0.6 | 0.3 | D:6.8 A3V, 7.4 A6V, 120y, a = 0.448".,VAR:ADS 4971, 6.3 - 6.37V, combined mag. Difference between components varies from 0.2 to 1.5V. Uncertain which component is,VAR:var. | |||||
HR 2292 | BD+03 1221 | 44700 | 113801 | 06 23 18.5 | +03 45 52 | 6.40 | B3V | G:Cas-Tau OB1. | |||||||||
HR 2295 | BD-04 1484 | 44756 | 133199 | 06 23 22.7 | -04 41 14 | 6.67 | A2V | ||||||||||
HR 2298 | ε | 8 | BD+04 1236 | 44769 | 113810 | 244 | 5012 A | 06 23 46.1 | +04 35 34 | 4.44 | A5IV | 2.2 | 12.9 | D:Binary with HR 2299. Combined light 4.30V, +0.21(B-V). Component C, 12.2v at 93".,SB:331d? Unresolved by speckle interferometry. | |||
HR 2299 | BD+04 1237 | 44770 | 113811 | 5012 B | 06 23 46.5 | +04 35 44 | 6.72 | F5V | 2.2 | 12.9 | D:See HR 2298. | ||||||
HR 2300 | BD+08 1316 | 44783 | 113817 | 06 24 02.3 | +08 53 05 | 6.26 | B8Vn | RV:Recent determination of vsini 300k/s. | |||||||||
HR 2301 | BD-09 1444 | 44816 | 133203 | I | 06 23 36.0 | -09 52 28 | 6.19 | K5 | |||||||||
HR 2310 | BD+07 1273 | 44990 | 113845 | T Mon | 06 25 13.1 | +07 05 09 | 5.98 | F7Iab-K1Iab | D:IUE observations suggest an early-type companion, about A0.,VAR:CDelta 5.58 - 6.62V, 27.0205d since 1933. Period has increased from 27.0093 before 1900, with mean value 27.024649d. | ||||||||
HR 2312 | BD+01 1332 | 45050 | 113855 | W | 06 25 18.4 | +01 30 04 | 6.66 | B9V | 0.0 | 0.1 | |||||||
HR 2313 | BD-00 1287 | 45067 | 133229 | 06 25 16.4 | -00 56 46 | 5.87 | F8V | ||||||||||
HR 2315 | BD+02 1227 | 45137 | 113868 | 06 25 46.6 | +02 16 20 | 6.51 | A0V | ||||||||||
HR 2317 | BD-03 1425 | 45168 | 133238 | 06 25 47.1 | -03 53 21 | 6.35 | G9III | SB:428.1d, K 7.99k/s, V0 +15.85k/s, asini 45.4. | |||||||||
HR 2321 | BD-07 1422 | 45239 | 133246 | 06 25 58.8 | -07 53 39 | 6.40 | A4V | ||||||||||
HR 2324 | BD-01 1242 | 45320 | 133260 | 2493 | 06 26 39.6 | -01 30 26 | 5.87 | A3Vn | |||||||||
HR 2325 | BD-04 1510 | 45321 | 133257 | 06 26 34.5 | -04 35 50 | 6.15 | B2.5V | G:Open cluster NGC 2232 #2. | |||||||||
HR 2327 | BD+00 1421 | 45357 | 113896 | 06 26 58.7 | +00 50 27 | 6.71 | A1Vn | ||||||||||
HR 2328 | BD-07 1429 | 45380 | 133263 | 5070 | 06 26 44.9 | -07 30 41 | 6.27 | A0Vn | 2.3 | 21.1 | D:Fixed sep. | ||||||
HR 2333 | BD+02 1237 | 45415 | 113906 | 06 27 20.4 | +02 54 29 | 5.55 | G9III | ||||||||||
HR 2334 | BD+00 1426 | 45416 | 113905 | I | 06 27 13.8 | +00 17 57 | 5.20 | K1II | N:77 Ori in Monoceros. | ||||||||
HR 2335 | BD-00 1299 | 45433 | 133269 | I | 06 27 15.6 | -00 16 34 | 5.55 | K5III | N:78 Ori in Monoceros. | ||||||||
HR 2342 | BD+10 1149 | 45512 | 95718 | 06 28 18.8 | +10 18 14 | 6.15 | K2III-IV | ||||||||||
HR 2344 | 10 | BD-04 1526 | 45546 | 133290 | 246 | W | 06 27 57.6 | -04 45 44 | 5.06 | B2V | 4.2 | 77.2 | G:Brightest star in open cluster NGC 2232, #1. | ||||
HR 2347 | BD+02 1244 | 45563 | 113929 | 06 28 16.8 | +01 54 44 | 6.48 | B9V | ||||||||||
HR 2351 | BD+11 1193 | 45638 | 95732 | 06 29 00.0 | +11 01 10 | 6.59 | A9IV | ||||||||||
HR 2355 | BD+02 1253 | 45724 | 113940 | I | W | 06 29 14.9 | +02 38 46 | 6.16 | gM1 | 4.0 | 19.3 | ||||||
HR 2356 | β | 11 | BD-06 1574 | 45725 | 133316 | 5107 A | 2977 | 06 28 49.0 | -07 01 58 | 4.60 | B3Ve v | 0.5 | 7.1 | D:Triple system with HR 2357 and 2358. Combined mag., color 3.74V, -0.15(B-V), all Be stars. AB, 17000y; AC, sep. 10",,D:29000y. Component D, 12.2v at 26" from A. Uncertain which of components A,B,C, HR 2356,7,8 is the light variable,D:NSV 2977, for which the mag. 3.75V is a blend of all three.,S:Shell star with variable H alpha emission.,SB:12.5y, K 30k/s, asini 1900. Shell oscillations. Spectrum var. 12.5y for 3.5 cycles, then ceased.,VAR:Hydrogen lines var. K 30k/s. Shell line velocities do not correspond to orbital elements; may be due to gaseous ring. | |||
HR 2357 | β | 11 | BD-06 1575 | 45726 | 133317 | 5107 B | 2977 | 06 28 49.5 | -07 02 04 | 5.40 | B3ne | 0.5 | 7.1 | D:See HR 2356.,DYN:0.008".,S:Shell star. | |||
HR 2358 | β | 11 | BD-06 1575 | 45727 | 0 | 5107 C | 2977 | 06 28 49.5 | -07 02 04 | 5.60 H | B3e | 0.5 | 7.1 | D:See HR 2356.,DYN:0.008". | |||
HR 2362 | BD+09 1259 | 45827 | 113957 | 06 30 05.5 | +09 01 45 | 6.57 | A0III | S:Also classified A0pSi. | |||||||||
HR 2367 | BD-09 1493 | 45976 | 151573 | 2497 | I | 06 30 11.3 | -10 04 53 | 5.93 | K0 | ||||||||
HR 2370 | BD+11 1204 | 45995 | 95766 | 5153 A | 06 31 09.5 | +11 15 03 | 6.14 | B2V:nne | 2.8 | 16.1 | D:Double emission lines of which red component variable intensity. Component B, 9.09V, -0.05(B-V), -0.30(U-B), B9IVe,,D:RV +6k/s, vsini 201k/s.,G:HII region; in cluster NGC 2264, region of expanding OB assoc. in gas and dust. See note for HR 2456. | ||||||
HR 2374 | BD+11 1207 | 46075 | 95783 | 06 31 39.2 | +11 47 32 | 6.65 | B6III | G:In HII region. | |||||||||
HR 2375 | BD+11 1209 | 46089 | 95788 | 06 31 48.3 | +11 32 40 | 5.23 | A3V | G:Possible Eggen group with HR 63, q.v. | |||||||||
HR 2378 | BD+11 1213 | 46178 | 95803 | 5170 | 06 32 23.3 | +11 40 25 | 6.03 | K0III | 4.2 | 31.1 | D:Optical. | ||||||
HR 2381 | BD-08 1462 | 46229 | 133369 | I | 06 31 50.1 | -08 09 29 | 5.43 | gK2 | |||||||||
HR 2382 | 12 | BD+04 1304 | 46241 | 114023 | 3017 | 06 32 19.2 | +04 51 21 | 5.84 | K0V | G:In field of open cluster NGC 2244 #56, the Rosette Nebula, associated with dense clouds of gas. Probable nonmember. | |||||||
HR 2385 | 13 | BD+07 1337 | 46300 | 114034 | 1174 | 06 32 54.2 | +07 19 59 | 4.50 | A0Ib | G:Mon OB1; in reflection nebula; member assoc. Mon R1 at 1050 pc.,VAR:R-I also found at -0.02. | |||||||
HR 2386 | BD-05 1678 | 46304 | 133382 | W | 06 32 23.1 | -05 52 08 | 5.60 | F0Vnn | 7.7 | 4.2 | |||||||
HR 2395 | BD-01 1274 | 46487 | 133404 | 1175 | 06 33 37.9 | -01 13 13 | 5.10 | B5Vn | |||||||||
HR 2404 | 14 | BD+07 1357 | 46642 | 114085 | 5211 | 3031 | 06 34 46.4 | +07 34 21 | 6.45 | A0V s | 4.0 | 10.5 | D:Fixed sep. | ||||
HR 2406 | BD+10 1186 | 46709 | 95870 | 2505 | I | 06 35 17.6 | +09 59 18 | 5.88 | K4III | ||||||||
HR 2409 | BD+00 1491 | 46769 | 114097 | 06 35 15.8 | +00 53 24 | 5.80 | B8Ib | ||||||||||
HR 2413 | BD+04 1335 | 46885 | 114115 | 06 36 00.0 | +04 29 51 | 6.55 | B9III | G:Member cluster Collinder 107, a cluster possibly assoc. with a stellar ring. | |||||||||
HR 2418 | BD-05 1710 | 47054 | 133469 | 2509 | 06 36 35.3 | -05 12 40 | 5.52 | B8V e | S:Shell star. | ||||||||
HR 2422 | BD+06 1309 | 47129 | 114146 | V640 Mon | 06 37 24.1 | +06 08 07 | 6.06 | O8p | G:Mon OB2; in HII reg.; a SN remnant, D14. Near NGC 2264 in region of expanding OB assoc. in gas and dust. See note for HR,G:2456. Embedded in 21-cm emission.,M:Probably star of largest known mass for primary and secondary components, each about 50 solar masses.,N:Plaskett's star.,P:Intrinsic polarization, probably due to circumstellar matter.,S:Shell star. Also classified O8f and O7.5III(f), O8V + O8f.,SB:14.3961d, K 205.2k/s, V0 +24.9k/s, asini 40.6. Masses each about 55 solar. The secondary is underluminous for its,SB:mass and may be smaller than the primary. vsini secondary 130:k/s.,VAR:6.04 - 6.08V, irregular variations, possibly transition from O- to WR-type spectrum. Polarization variable. | ||||||||
HR 2426 | BD+10 1201 | 47156 | 95914 | 06 37 36.9 | +10 51 11 | 6.38 | K0 | ||||||||||
HR 2430 | BD+02 1315 | 47220 | 114154 | 2512 | 06 37 40.3 | +02 42 15 | 6.17 | K1III | |||||||||
HR 2432 | BD+05 1334 | 47240 | 114162 | 06 37 52.7 | +04 57 26 | 6.15 | B1Ib | G:Mon OB2; near NGC 2264 in region of expanding OB assoc. in gas and dust. See note for HR 2456. At edge of Monoceros,G:loop. Supernova remnant possibly associated with HR 2432. | |||||||||
HR 2440 | BD-02 1691 | 47420 | 133511 | I | 06 38 20.5 | -02 32 37 | 6.14 | K2 | |||||||||
HR 2441 | BD+04 1365 | 47431 | 114194 | 06 38 49.5 | +04 42 02 | 6.57 | B8IIIn | G:Near NGC 2264 in region of expanding OB assoc. in gas and dust. See note for HR 2456. | |||||||||
HR 2442 | BD+01 1443 | 47432 | 114191 | 3060 | 06 38 38.1 | +01 36 49 | 6.21 | O9.5II | G:Mon OB1; exciting star of HII region S282 within 0.5d; 21-cm emission.,RV:7.5 hrs.,S:Luminosity class variously given as I, II and III (classified also as O9.5I and O9.7Ib). uv 1548 absorption strong,,S:emission weak.,VAR:Beta C? 6.2 - 6.25V, 7.5 hrs., possibly longest period Beta C type. | ||||||||
HR 2454 | BD+06 1338 | 47756 | 114244 | 06 40 31.8 | +06 22 18 | 6.51 | B8IIISi | ||||||||||
HR 2456 | 15 | BD+10 1220 | 47839 | 114258 | I | 5322 | S Mon | 06 40 58.7 | +09 53 44 | 4.66 | O7V((f)) | 3.5 | 2.9 | C:Color excess E(B-V) = +0.07.,D:AB binary, 4.8 Oe5, 7.6 B7; C, 9.9v B8V at 17", physical, vsini 141k/s; D, 9.7v A6III at 41", physical, vsini 115k/s;,D:E1 the brighter component of E, B5V at 74", probably optical, vsini 253k/s; E2, A0V, vsini 132k/s.,DYN:0.005".,G:In cluster NGC 2264 #131; HII reg. S273; Mon OB1; T-Tauri assoc., Mon T1. The cluster appears to be the nucleus of the,G:association. In region of neutral hydrogen. Ionized Mon OB1 region probably excited by S Mon. The electron density of,G:the HII region increases toward the center of the cluster. (Note that OB associations MonI = IIMon = Mon OB1 and MonII =,G:IMon = OB2. In conversions from the earlier designations to OB1 and OB2 these groups have occasionally been,G:interchanged; however, they may be related.),S:Also classified O8III((f)). uv 1240 absorption strong.,VAR:ADS 5322A, Ia? 4.62 - 4.67V. R-I also found at -0.11. | |||
HR 2458 | BD+11 1273 | 47886 | 95997 | I | 06 41 17.2 | +11 00 12 | 6.11 | M1III | |||||||||
HR 2461 | BD+00 1546 | 47964 | 114269 | 06 41 05.4 | +00 29 43 | 5.79 | B8III | ||||||||||
HR 2467 | BD+06 1351 | 48099 | 114293 | I | 06 41 59.3 | +06 20 42 | 6.37 | O6.5V e | D:Some spectral lines appear double, indicating separation of about 110k/s and vsini of 90 and 75k/s.,G:Mon OB2; 21 cm emission; in HII region D14; in a SN remnant; near NGC 2264 in region of expanding OB assoc. in gas and,G:dust. See HR 2456.,S:Also classified O7V and O8f. | ||||||||
HR 2469 | BD-09 1601 | 48217 | 133585 | I | 06 41 56.4 | -09 10 02 | 5.19 | M0III | G:Wolf 630 group. | ||||||||
HR 2474 | BD+03 1371 | 48348 | 114312 | I | 06 43 06.5 | +03 02 00 | 6.19 | K0 | |||||||||
HR 2479 | BD+04 1414 | 48434 | 114324 | 06 43 38.7 | +03 55 56 | 5.90 | B0III | G:Mon OB2.,S:uv indicates sB0.5. | |||||||||
HR 2494 | 16 | BD+08 1486 | 48977 | 114388 | 1177 | 06 46 32.4 | +08 35 14 | 5.93 | B2.5V | G:In HII region; near NGC 2264 in region of expanding OB assoc. in gas and dust. See note for HR 2456. | |||||||
HR 2502 | BD-09 1644 | 49147 | 151911 | 2521 | 06 46 39.0 | -10 06 26 | 5.66 | B9.5V | |||||||||
HR 2503 | 17 | BD+08 1496 | 49161 | 114410 | I | 06 47 19.8 | +08 02 14 | 4.77 | K4III | ||||||||
HR 2506 | 18 | BD+02 1397 | 49293 | 114428 | 258 | I | 06 47 51.6 | +02 24 44 | 4.47 | K0+IIIaBa0.2 | S:Also classified K0III Ba 0.1. | ||||||
HR 2508 | BD-08 1558 | 49331 | 133679 | I | 3213 | 06 47 37.1 | -08 59 54 | 5.07 | M1+Ib-IIa | VAR:Amp. 0.06V. | |||||||
HR 2514 | BD-01 1386 | 49434 | 133687 | 06 48 19.0 | -01 19 09 | 5.75 | F1V | ||||||||||
HR 2517 | BD+01 1531 | 49567 | 114465 | 06 49 03.7 | +01 00 07 | 6.15 | B3II-III | ||||||||||
HR 2521 | BD-02 1776 | 49643 | 133718 | 1179 | W | 06 49 16.4 | -02 16 19 | 5.74 | B8IIIn | 0.0 | 0.1 | ||||||
HR 2530 | BD-00 1462 | 49933 | 133760 | 5505 | 06 50 49.9 | -00 32 27 | 5.77 | F2V | 5.5 | 5.9 | D:CPM. | ||||||
HR 2534 | BD-07 1592 | 49976 | 133761 | V592 Mon | 06 50 42.3 | -08 02 28 | 6.29 | A2pSrCrEu v | VAR:Alpha CV 6.16 - 6.32V, 2.9760d. Magnetic field and rotation same period. Strontium var. | ||||||||
HR 2543 | BD+03 1437 | 50062 | 114525 | 06 51 39.3 | +03 02 30 | 6.38 | A2V s | ||||||||||
HR 2551 | BD+08 1543 | 50277 | 114556 | I | 06 52 49.4 | +08 22 49 | 5.77 | F0Vn | |||||||||
HR 2552 | BD-05 1845 | 50282 | 133807 | 06 52 22.9 | -05 18 58 | 6.30 | K0 | ||||||||||
HR 2555 | BD+11 1344 | 50371 | 96241 | 06 53 22.5 | +10 59 47 | 6.24 | K0III | ||||||||||
HR 2570 | BD-05 1863 | 50700 | 133855 | 5557 | 06 54 08.5 | -05 51 09 | 6.41 | A6Vn | 0.1 | 1.2 | |||||||
HR 2572 | BD-00 1487 | 50747 | 133870 | 2533 | 06 54 24.6 | -01 07 37 | 5.45 | A4IV | G:Possible Eggen group with HR 63, q.v. | ||||||||
HR 2577 | BD-01 1446 | 50820 | 133881 | 3271 | 06 54 42.1 | -01 45 23 | 6.21 | B3IVe+K2II | RV:Pole on.,S:Also classified B3IVe+F. | ||||||||
HR 2582 | BD-02 1827 | 50890 | 133890 | 06 54 58.8 | -02 48 13 | 6.04 | gG6 | ||||||||||
HR 2584 | BD+08 1562 | 50931 | 114626 | 06 55 34.6 | +08 19 29 | 6.29 | A0V | ||||||||||
HR 2589 | BD+10 1335 | 51104 | 96294 | 2535 | 06 56 25.8 | +09 57 23 | 5.92 | B8Vn | |||||||||
HR 2599 | BD-07 1642 | 51424 | 133937 | 06 57 00.1 | -08 10 44 | 6.34 | K0II-III+A2V | ||||||||||
HR 2606 | BD+07 1539 | 51693 | 114713 | 06 58 39.0 | +07 37 19 | 6.27 | A3V | ||||||||||
HR 2610 | BD+03 1488 | 51814 | 114722 | 2540 | 5648 | 06 58 57.0 | +03 36 08 | 5.97 | G8III | 6.7 | 3.6 | ||||||
HR 2613 | BD+07 1544 | 51892 | 114731 | 06 59 20.1 | +07 19 01 | 6.35 | B7III | ||||||||||
HR 2622 | BD-05 1910 | 52265 | 134031 | 07 00 18.0 | -05 22 01 | 6.30 | G0III-IV | ||||||||||
HR 2624 | BD-08 1662 | 52312 | 134036 | 1181 | W | 07 00 23.7 | -08 24 25 | 5.96 | B9III | 6.7 | 1.5 | ||||||
HR 2627 | BD-08 1667 | 52382 | 134041 | 07 00 39.3 | -09 12 11 | 6.49 | B1Ib | G:CMa OB1. | |||||||||
HR 2629 | BD+05 1513 | 52479 | 114798 | 07 01 41.4 | +04 49 05 | 6.63 | A3V s | ||||||||||
HR 2633 | BD+05 1514 | 52559 | 114801 | 07 01 55.0 | +05 33 27 | 6.59 | B2IV-V | M:Old disk population runaway star. | |||||||||
HR 2636 | BD-01 1509 | 52611 | 134073 | W | 07 01 52.9 | -01 20 44 | 6.17 | G5II | 4.7 | 24.5 | |||||||
HR 2639 | BD-05 1926 | 52666 | 134076 | I | 3341 | 07 01 56.4 | -05 43 20 | 5.20 | M2III | ||||||||
HR 2647 | BD+09 1496 | 52913 | 114835 | 07 03 17.9 | +09 08 18 | 5.97 | A3V s | ||||||||||
HR 2648 | 19 | BD-04 1788 | 52918 | 134106 | 2547 | V637 Mon | 07 02 54.8 | -04 14 21 | 4.99 | B1V e | RV:Rotational velocity vsini 336k/s.,S:H alpha emission. uv indicates gB1.,VAR:Beta C 4.96 - 5.01V, 0.19120d, secondary 0.19740d, beat period 6.09d. | ||||||
HR 2654 | BD+01 1665 | 53205 | 114867 | W | 07 04 20.2 | +01 29 18 | 6.57 | A0V | 0.9 | 90.4 | |||||||
HR 2655 | BD-05 1943 | 53208 | 134133 | I | 07 04 05.2 | -05 19 25 | 5.62 | K3III | |||||||||
HR 2656 | BD-09 1818 | 53240 | 152308 | 07 03 57.3 | -10 07 27 | 6.45 | B9IIIn e | S:H alpha emission. | |||||||||
HR 2663 | BD+09 1510 | 53510 | 114899 | I | 07 05 39.1 | +09 11 09 | 5.78 | M0III | |||||||||
HR 2670 | BD-10 1862 | 53755 | 152363 | 5782 | V569 Mon | 07 05 49.7 | -10 39 40 | 6.49 | B0.5V+F5III | 3.6 | 38.3 | D:Component B, 10.3v, F5III.,G:Exciting star of HII region S296. Doubtful if member of CMa OB1.,VAR:ADS 5782A, Beta C 6.42 - 6.53V, 0.267d? or 0.18d. Other indications from 4 to 10.4 hrs. | |||||
HR 2676 | BD+05 1543 | 53929 | 114935 | 07 07 06.4 | +04 54 37 | 6.11 | B9.5III | ||||||||||
HR 2694 | BD-10 1892 | 54662 | 152470 | 07 09 20.3 | -10 20 50 | 6.21 | O6.5V | G:Exciting star of HII region S296; member assoc. CMa OB1-R1.,M:Possibly the center of SN explosion 0.8 million years ago.,S:Also classified O7III. | |||||||||
HR 2701 | 20 | BD-04 1840 | 54810 | 134282 | 1186 | I | W | 07 10 13.7 | -04 14 14 | 4.92 | K0III | 4.9 | 186.2 | ||||
HR 2707 | 21 | BD-00 1634 | 55057 | 134316 | V571 Mon | 07 11 23.6 | -00 18 07 | 5.45 | A8Vn-F3Vn v | VAR:Delta Sct 5.43 - 5.50V, 0.0999081 and 0.07500d, var. amp., beat per. 0.30083d. Sp. var. | |||||||
HR 2714 | δ | 22 | BD-00 1636 | 55185 | 134330 | 1187 | 5864 | 07 11 51.9 | -00 29 34 | 4.15 | A2V | 9.2 | 32.0 | ||||
HR 2731 | BD-03 1804 | 55775 | 134391 | I | 5911 | 07 14 11.0 | -03 54 05 | 5.75 | K5III | 5.0 | 2.7 | ||||||
HR 2732 | BD-09 1921 | 55832 | 134395 | I | 07 14 15.5 | -09 56 51 | 5.90 | K3III | |||||||||
HR 2739 | BD-10 1933 | 55879 | 152598 | 07 14 28.2 | -10 19 00 | 6.03 | B0III | G:CMa OB1; NGC 2353 #1; exciting star of HII region S296. NGC 2353, a cluster in which no appreciable amounts of neutral,G:or ionized hydrogen have been detected. | |||||||||
HR 2744 | 24 | BD+00 1871 | 56003 | 134414 | 5933 | 07 15 19.3 | -00 09 41 | 6.41 | G5III | 5.8 | 3.8 | ||||||
HR 2752 | BD-10 1945 | 56207 | 152621 | 07 15 43.1 | -10 35 02 | 5.95 | K0 | ||||||||||
HR 2765 | BD-06 2032 | 56614 | 134474 | I | 07 17 31.7 | -06 40 48 | 6.29 | K2 | |||||||||
HR 2798 | BD-08 1862 | 57517 | 134563 | 07 21 16.9 | -08 52 42 | 6.55 | F5 | ||||||||||
HR 2806 | BD-08 1872 | 57682 | 134580 | 07 22 02.0 | -08 58 45 | 6.43 | O9V | G:CMa OB1; in HII reg. Ma 118. | |||||||||
HR 2807 | BD-02 2079 | 57708 | 134585 | 07 22 18.5 | -02 58 44 | 6.23 | F5 | ||||||||||
HR 2811 | BD-05 2089 | 57749 | 134588 | 3560 | 07 22 25.4 | -05 58 58 | 5.82 | F3IV | VAR:Delta Sct? 5.80 - 5.84V. | ||||||||
HR 2833 | BD-05 2112 | 58526 | 134654 | 07 25 51.0 | -05 46 30 | 5.97 | G3Ib | ||||||||||
HR 2838 | BD-04 1943 | 58580 | 134658 | 07 26 03.5 | -04 32 15 | 6.76 | A0IV | SB:Small RV amp. Components equal Sp., but different rotations. | |||||||||
HR 2865 | BD-01 1738 | 59311 | 134740 | 2578 | I | 07 29 18.7 | -01 54 19 | 5.59 | K5III | ||||||||
HR 2866 | BD-07 1996 | 59380 | 134742 | 07 29 25.7 | -07 33 04 | 5.86 | F8V | ||||||||||
HR 2867 | BD-10 2067 | 59381 | 152941 | 2579 | I | 07 29 22.1 | -10 19 36 | 5.75 | K5III | ||||||||
HR 2876 | BD-04 1979 | 59669 | 134774 | 2582 | 07 30 51.1 | -05 13 35 | 6.24 | K0 | |||||||||
HR 2883 | BD-08 1964 | 59984 | 134806 | 6158 | 07 32 05.8 | -08 52 51 | 5.90 | F5V | 2.7 | 23.4 | D:CPM? | ||||||
HR 2920 | BD-07 2065 | 60853 | 134883 | I | 07 36 16.6 | -08 18 41 | 6.27 | K2 | |||||||||
HR 2927 | 25 | BD-03 1979 | 61064 | 134899 | 289 | W | 3665 | 07 37 16.7 | -04 06 40 | 5.13 | F6III | 5.3 | 121.7 | D:AB, CPM. B, 13.2v at 26".,G:Hyades group.,VAR:Comp. A of multiple. Delta Sct?, amp. 0.01V, 1.5hr. | |||
HR 2958 | BD-07 2118 | 61749 | 134969 | 07 40 35.5 | -08 11 09 | 6.01 | A3IV | ||||||||||
HR 2970 | α | 26 | BD-09 2172 | 61935 | 134986 | 293 | I | 07 41 14.8 | -09 33 04 | 3.93 | K0III | N:In early catalogues called Gamma Mon; HR 2227 now called Gamma, was Alpha in BAC and numerous older,N:catalogues. | |||||
HR 3014 | BD-06 2281 | 62902 | 135079 | I | 07 46 02.2 | -06 46 21 | 5.49 | K5III | |||||||||
HR 3047 | BD-08 2096 | 63752 | 135158 | I | 07 50 10.6 | -09 11 00 | 5.61 | K3III | |||||||||
HR 3054 | BD-10 2253 | 63894 | 153479 | 2609 | 07 50 55.2 | -11 07 43 | 6.16 | K0 | |||||||||
HR 3072 | BD-05 2280 | 64235 | 135205 | 2611 | W | 3777 | 07 52 47.9 | -05 25 41 | 5.76 | F5IV | 0.3 | 0.2 | D:6.4 F2, 6.7, 30.8y, a = 0.295". | ||||
HR 3122 | 27 | BD-03 2157 | 65695 | 135345 | 304 | I | 07 59 44.1 | -03 40 47 | 4.93 | K2III | |||||||
HR 3135 | BD-02 2379 | 65875 | 135368 | 3857 | 08 00 44.1 | -02 52 54 | 6.51 | B2.5Ve v | G:Group around Zeta Mon.,S:Shell star displaying variable H alpha.,VAR:Gamma Cas?, 6.48 - 6.63V. Amp. at 0.58 micrometers about 0.10m. | ||||||||
HR 3141 | 28 | BD-00 1882 | 65953 | 135380 | 2620 | I | V645 Mon | 08 01 13.3 | -01 23 33 | 4.68 | K4III | VAR:FK Com, amp. 0.020V, 0.025B, 0.030U, 0.207878d. | |||||
HR 3150 | BD-05 2339 | 66242 | 135406 | 1213 | 08 02 26.0 | -06 20 14 | 6.33 | G0III | |||||||||
HR 3174 | BD-08 2222 | 67159 | 135505 | 6588 | 08 06 27.5 | -09 14 42 | 6.23 | B9V | 1.7 | 30.8 | D:B is A0. BC double 8.6, 13.0 sep. 1". | ||||||
HR 3188 | ζ | 29 | BD-02 2450 | 67594 | 135551 | I | 6617 | 08 08 35.6 | -02 59 02 | 4.34 | G2Ib | 4.9 | 66.0 | D:B, 10.1v G8II at 33" optical. C is K2III.,G:Group around Zeta Mon. | |||
HR 3189 | BD-10 2400 | 67725 | 153887 | 08 08 56.9 | -11 20 23 | 6.32 | A0Vn |
Planetary Nebulae | ||||||||
---|---|---|---|---|---|---|---|---|
Name | RA | Dec | Type | bMag | vMag | Dim | Dreyer Description | Identification, Remarks |
NGC 2346 | 07 09 22.5 | -00 48 22 | PN | 11.8 | 11.6 | 0.87 | * 10 nff with S, vF, neb | PK 215+3.1, CS=11.2 |
Galactic Nebulae | ||||||||
Name | RA | Dec | Type | bMag | vMag | Dim | Dreyer Description | Identification, Remarks |
NGC 2149 | 06 03 30.7 | -09 43 50 | RN | 3 × 2 | F, * 12 inv | vdB 66 | ||
NGC 2170 | 06 07 31.3 | -06 23 53 | RN | 2 × 2 | * 9 in vF, pL neb, E 170° | LBN 994 | ||
NGC 2182 | 06 09 30.9 | -06 19 35 | RN | 2 × 2 | pB **, L * neb, E 90° ± | LBN 998 | ||
NGC 2183 | 06 10 46.9 | -06 12 43 | RN | 1 × 1 | eF, S, lE, * 11·12 sp | LBN 996 | ||
NGC 2185 | 06 11 00.4 | -06 13 36 | RN | 1 × 1 | * 11 and 4 S st in vF, L neb | LBN 997, part of N 2185 | ||
NGC 2237 | 06 30 54.6 | +05 02 52 | EN | 80 × 50 | pB, vvL, dif (? = 5361) | w part of Rosette nebula | ||
NGC 2238 | 06 30 40.3 | +05 00 47 | EN | 6.0 | 80 × 60 | S * in nebulosity | LBN 948, knot in Rosette nebula | |
NGC 2245 | 06 32 41.2 | +10 09 24 | RN | 5 × 4 | pL, com, mbN sf alm *, * 7·8 nf | LBN 904 | ||
NGC 2246 | 06 32 33.7 | +05 07 42 | EN | eeF, L, irrR, e diffic | LBN 948, part of Rosette nebula | |||
NGC 2247 | 06 33 05.1 | +10 19 18 | RN | 6 × 6 | Neb * in eF, eL neby, nf IV 3 | LBN 901 | ||
NGC 2261 | 06 39 09.5 | +08 44 40 | EN+RN | 9.0 | 3 × 1 | B, vmE 330°, N com = * 11 | LBN 920, Hubble's variable nebula | |
NGC 2282 | 06 46 51.2 | +01 18 54 | RN | 3 × 3 | * 10 in F, R neby | IC 2172, CED 87, assoc. w OCL 535 | ||
NGC 2313 | 06 58 02.8 | -07 56 42 | EN | F, vS, R | LDN 1653 | |||
NGC 2316 | 06 59 40.8 | -07 46 38 | RN+EN | 4 × 3 | pF, S, R, r, S st inv | NGC 2317, LBN 1021, part of one neb | ||
IC 446 | 06 31 06.0 | +10 27 35 | RN+* | 5 × 4 | Neb * 10m | IC 2167, LBN 898, CED 77 | ||
IC 447 | 06 31 04.0 | +09 52 00 | RN | 25 × 20 | vF, eeL, dif | IC 2169, LBN 903 | ||
IC 448 | 06 32 45.0 | +07 23 18 | RN | 15 × 10 | Neby, np * 5 mag | LBN 930, DG 107 | ||
IC 466 | 07 08 38.9 | -04 19 02 | EN | 1 × 1 | * 11.5 in vF neb | CED 92, Sh2-288 | ||
IC 2177 | 07 04 25.3 | -10 27 13 | EN | 20 × 20 | pB, eL, iR, v dif | LBN 1027, vdB 93, Sh2-292, Be star | ||
Open Clusters | ||||||||
Name | RA | Dec | Type | bMag | vMag | Dim | Dreyer Description | Identification, Remarks |
NGC 2215 | 06 20 49.2 | -07 17 02 | II2p | 8.4 | 8 | Cl, cL, pRi, pC, st 11…15 | OCL 550 | |
NGC 2219 | 06 23 44.3 | -04 40 36 | OCL | 10 | Cl, P, vlC, st 6, 11…12 | |||
NGC 2225 | 06 26 37.5 | -09 38 32 | OCL | 40 | Cl, P, lCM, st 12…15 | NGC 2226 | ||
NGC 2232 | 06 27 15.0 | -04 45 30 | IV3p | 4.2 | 45 | B * (10 Monoc) + CL | OCL 545 | |
NGC 2236 | 06 29 39.6 | +06 49 51 | III2p | 8.5 | 8 | Cl, pRi, pC, st 10, 12…15 | OCL 501 | |
NGC 2244 | 06 32 19.0 | +04 51 24 | II3p | 5.3 | 4.8 | 24 | Cl, beautiful, st sc (12 Monoc) | NGC 2239, OCL 515, in Rosette nebula |
NGC 2250 | 06 33 49.8 | -05 05 04 | IV2p | 8.9 | 10 | Cl, pRi, lC, iF, st 8, 12…14 | OCL 547, *Grp ? | |
NGC 2251 | 06 34 38.4 | +08 21 59 | III2p | 7.3 | 10 | Cl, vL, E, Ri, lC | OCL 499 | |
NGC 2252 | 06 34 19.8 | +05 19 22 | IV2p | 7.7 | 18 | Cl, vL, pRi, lC, st S | OCL 514 | |
NGC 2254 | 06 35 46.6 | +07 40 15 | I2p | 9.1 | 6 | Cl, S, pC, iF, st 11…13 | OCL 500 | |
NGC 2259 | 06 38 33.3 | +10 52 57 | II2p | 10.8 | 3.5 | Cl, cRi, eC, iF, st eS | OCL 492 | |
NGC 2260 | 06 38 03.0 | -01 28 20 | OCL | 20 | Cl, vL, P, vlC, st L & S | |||
NGC 2262 | 06 39 38.7 | +01 08 30 | I2p | 11.3 | 4 | Cl, vC, iR, bM, st eS | OCL 531 | |
NGC 2264 | 06 40 58.2 | +09 53 44 | IV3pn | 4.1 | 40 | 15 Monoc, Cl, **, ? Neb | OCL 495, LBN 911, Christmas Tree cluster | |
NGC 2269 | 06 43 17.0 | +04 37 28 | II2p | 10.0 | 3 | Cl, vmC, not Ri, st vS | OCL 524 | |
NGC 2270 | 06 43 57.7 | +03 28 45 | OCL | Cl, lC, not Ri | ||||
NGC 2286 | 06 47 40.1 | -03 08 52 | IV3m | 7.5 | 15 | Cl, L, C, ab 100 st 9…15 | OCL 548 | |
NGC 2301 | 06 51 45.2 | +00 27 33 | I3m | 6.0 | 15 | Cl, Ri, L, iF, st L & S | OCL 540 | |
NGC 2302 | 06 51 56.6 | -07 05 04 | II2p | 9.1 | 8.9 | 2.5 | Cl, L, P, lC | NGC 2299, OCL 554 |
NGC 2306 | 06 54 29.5 | -07 11 55 | OCL | Cl, P, vlC | * cloud? | |||
NGC 2309 | 06 56 03.6 | -07 10 28 | II2m | 10.5 | 5 | Cl, pL, pRi, mC, st 13 | OCL 557 | |
NGC 2311 | 06 57 47.5 | -04 36 41 | III2p | 9.6 | 7 | Cl, lC, not Ri | OCL 553 | |
NGC 2323 | 07 02 47.8 | -08 22 33 | II3m | 5.9 | 15 | ! Cl, vL, Ri, pC, E, st 12…16 | M 50, OCL 559 | |
NGC 2324 | 07 04 07.9 | +01 02 41 | II2r | 8.4 | 8 | Cl, L, Ri, cC, st 12…16 | OCL 542 | |
NGC 2335 | 07 06 49.4 | -10 01 43 | III3m | 7.2 | 7 | Cl, L, lC | OCL 562 | |
NGC 2338 | 07 07 43.0 | -05 43 00 | OCL | Cl, vlC | *Grp ? | |||
NGC 2343 | 07 08 06.7 | -10 37 00 | III3p | 6.7 | 6 | Cl, cL, P, lC | OCL 565 | |
NGC 2349 | 07 10 48.1 | -08 35 34 | OCL | Cl, cL, P, cC | ||||
NGC 2353 | 07 14 30.3 | -10 15 57 | II2p | 7.1 | 18 | Cl, L, lC, one vB * | OCL 567 | |
NGC 2364 | 07 20 46.4 | -07 32 58 | OCL | Cl, pC, st pL, bifid | ||||
NGC 2368 | 07 21 02.2 | -10 22 28 | IV2p | 11.8 | 3 | Cl, S, pRi, st 15 | OCL 571 | |
NGC 2506 | 08 00 01.7 | -10 46 11 | I2r | 7.6 | 12 | Cl, pL, vRi, C, st 11…20 | OCL 593 | |
Galaxies | ||||||||
Name | RA | Dec | Type | bMag | vMag | Dim | Dreyer Description | Identification, Remarks |
NGC 2377 | 07 24 56.7 | -09 39 38 | Sc | 13.5 | 12.7 | 1.7 × 1.3 | eF, vS * inv, * 11 s | UGCA 132, 3C 178, IRAS 07225-0933, CGMW 1-839 |
NGC 2494 | 07 59 07.2 | -00 38 15 | SB0-a | 14.0 | 13.1 | 0.9 × 0.7 | F, S, lE | IC 487, UGC 4141, MCG 0-21-1, CGCG 3-2, IRAS 07565-0030 |
PNG | RA J2000.0 | Dec J2000.0 | Main ID | PK | IRAS | Discoverer | Identities | oDiam ["] | rDiam ["] | Dist [kpc] | Rvel [km/s] | ExpVel [km/s] | C* Name | C* Mag | C* SP Type |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
PN G201.7+02.5 | 06 39 56 | +11 06 30 | K 4-48 | 06371+1109 | KOHOUTEK 1969 | 0. | 2.2 | ||||||||
PN G204.1+04.7 | 06 52 30 | +9 57 48 | K 2- 2 | 204+04.1 | KOHOUTEK 1963 | ARO 128 | 415. | +28.0 | 10. (O-III) | AG82 69 | U: 12.8, B: 14.3, V: 15.0 | ||||
PN G204.8-03.5 | 06 23 55 | +5 30 12 | K 3-72 | KOHOUTEK 1969 | 10.5 | 13. (O-III), 16. (N-II) | |||||||||
PN G210.0+03.9 | 07 00 28 | +4 20 44 | We 2- 34 | WEINBERGER 1977 | 230. | ||||||||||
PN G210.3+01.9 | 06 53 34 | +3 08 24 | M 1- 8 | 210+01.1 | MINKOWSKI 1946 | ARO 129, VV 31, VV' 49 | 18. | +52.0 ± 25.0 | 11.0 (O-III) | V: 21.38 | |||||
PN G211.2-03.5 | 06 35 45 | +0 00 41 | M 1- 6 | 211-03.1 | 06331-0003 | MINKOWSKI 1946 | ARO 126, Sa 3- 1, VV 29, VV' 45 | < 5. | 2.9 | B: 16.76, V: 15.84 | |||||
PN G212.0+04.3 | 07 05 19 | +2 46 59 | M 1- 9 | 212+04.1 | 07026+0251 | MINKOWSKI 1946 | ARO 131, VV 32, VV' 53 | < 12. | 2.3 | +136.0 ± 10.1 | 7. (O-III), 19.0 (N-II) | B: 15.7, V: 15.6 | |||
PN G215.6+03.6 | 07 09 24 | +0 38 31 | NGC 2346 | 215+03.1 | 07068-0043 | MINKOWSKI 1946 | ARO 80, M 1-10, Sa 2- 5, VV 33, VV' 54 | 52. | 0.64 | +20.0 ± 3.0 | 8.0 (O-III), 12.5 (N-II) | AG -00 965, AG82 74, CSI -00 -7068 0, HD 293373, V651 Mon | B: 11.78, V: 11.47 | ? + A2 V | |
PN G216.0-00.2 | 06 56 14 | -2 53 08 | A 18 | 216-00.1 | ABELL 1955 | A55 13, ARO 224, VV' 50 | 73. | U: 20.46, B: 21.36, V: 20.90 | |||||||
PN G216.3-04.4 | 06 41 34 | -5 02 40 | We 1- 5 | WEINBERGER 1977 | 15. | AG82 66 | B: 19.7, V: 19.1 | ||||||||
PN G217.4+02.0 | 07 06 48 | -3 04 43 | St 3-1 | 07043-0300 | STEPHENSON 1978 | 15. | |||||||||
PN G218.9-10.7 | 06 23 37 | -10 13 23 | HDW 5 | HARTL et al 1983 | HaWe 7 | 94. | B: 16.55, V: 16.29 | Hg O(H) | |||||||
PN G221.7+05.3 | 07 26 34 | -5 21 54 | M 3- 3 | 221+05.1 | MINKOWSKI 1948 | ARO 236, Sa 2- 8, VV' 62, Y-C 38 | 12.2 | +95.0 ± 25.0 | 10.0 (O-III) | ||||||
PN G224.3+15.3 | 08 06 45 | -2 52 43 | K 1-13 | 224+15.1 | KOHOUTEK 1963 | A 25, ARO 246 | 165. | +16.0 | 22. (O-III) | AG82 97, CSI -02 -08042, UBV 7761 | U: 17.65, B: 18.80, V: 18.94 | ||||
PN G224.9+01.0 | 07 17 26 | -10 10 40 | We 1- 6 | WEINBERGER 1977 | 62. | AG82 78 | B: 16.8 | Hg O(H) | |||||||
PN G226.7+05.6 | 07 37 19 | -9 38 48 | M 1-16 | 226+05.1 | 07349-0932 | MINKOWSKI 1946 | ARO 239, Sa 2-11, VV 41, VV' 66 | 3. | 3.6 | +49.0 ± 25.0 | 10. (O-III) | AG82 85 | B: >17.9, V: 16.9 |