Constellation Sagitta (Arrow)

Properties

Sagitta is located in a star-rich region of the Milky Way, north of the star Atair in Aquila. It is a small constellation, but with a distinctive shape reminiscent of an arrow flying from west to east. The constellation, which is 80 square degrees, culminates around midnight on July 17th. ^{[9, 15]}

Stars with Proper Names:

α Sge: Sham, Alsahm

Data for constellation Sagitta ^[150]
IAU Name	Sagitta
IAU Genitive	Sagittae
IAU Abbr.	Sge
English Name	Arrow
Season (47° N)	April … November
Right Ascension	18^h 57^m 21^s … 20^h 20^m 45^s
Declination	+16° 04' 45" … +21° 38' 37"
Area	80 deg²
Neighbours (N↻)	Vul, Her, Aql, Del

Deep-Sky Object Descriptions

Messier 71

Roslund 3

Mythology and History

Sagitta is the arrow with which Heracles hit the eagle who pecked at the liver of Prometheus every day, as punishment for stealing the fire from heaven for the people. According to another representation, the arrow is supposed to be the symbol of cosmic light.

The Greeks called the constellation Tóxon or Oistos, the Romans Latinized it to Sagitta and the Arabs spoke of El Sham . ^{[10, 21]}

Catalogs

Yale Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991) ^[154]
HR	B	F	DM	HD	SAO	FK5	IR	M*	ADS	VarID	RA	Dec	vMag	spType	dMag	Sep ["]	Remarks
HR 7171			BD+19 3858	176301	104306						18 58 45.1	+19 47 39	6.50	B7III-IV
HR 7198			BD+19 3879	176776	104362						19 01 05.5	+19 18 35	6.39 R	K1III
HR 7200			BD+20 4022	176819	86704					11659	19 01 22.6	+20 50 01	6.69	B2IV-V			SB:15.9526d, K 55.1k/s, V0 -10.3k/s, asini 11.9.
HR 7216			BD+19 3888	177199	104405	3521					19 02 52.6	+19 39 40	6.09	K1III
HR 7260			BD+16 3752	178428	104511			W		Var?	19 07 57.3	+16 51 12	6.07	G5V	4.5	21.5	SB:21.998d, K 12.8k/s, V0 +14.4k/s, asini 3.79. Unresolved by speckle interferometry 1986.46.
HR 7267			BD+16 3758	178619	104524	3529					19 08 40.2	+16 51 05	6.48	F5IV-V			C:Other V magnitudes scatter from 6.10 to 6.68, B-V from +0.44 to +0.67, U-B from -0.01 to +0.23.,G:In Ursa cluster?,SB:4.812d, K 86.0k/s, V0 +8.8k/s, msin3i 1.26, asini 5.68.
HR 7285			BD+16 3775	179588	104602				12160		19 12 34.4	+16 50 47	6.73	B9IV	1.4	113.4	D:B, 8.0v at 0.7" CPM. C is G5.,DYN:0.001".
HR 7299			BD+19 3956	180242	86981						19 15 02.6	+20 12 12	6.00	G8III
HR 7301		1	BD+20 4088	180317	86987						19 15 17.4	+21 13 56	5.64	A4V			N:1 Sge on borderline of Vul. Listed as Vul in BAC.
HR 7326			BD+19 3975	181182	104711			W		U Sge	19 18 48.5	+19 36 38	6.58	B8III+K:	3.0	92.0	G:In cluster 4-5 Vul = Collinder 399 (nonmember).,S:Shell star.,SB:3.3806d, K 69.7k/s, V0 -10.1k/s, asini 3.24. Alternate orbit 3.3806205d, K 76k/s, V0 -5k/s, asini 3.25.,VAR:EA 6.58 - 9.18V, 3.3806260d. Period varies irregularly. i 90d. Semi-detached system.
HR 7369		2	BD+16 3839	182490	104797			W			19 24 22.1	+16 56 16	6.25	A2III-IV	0.8	340.6	SB:7.390d, K 52.8k/s, V0 +11.2k/s, msin3i 1.01, asini 5.37.
HR 7463	ε	4	BD+16 3918	185194	105061				12693	12213	19 37 17.4	+16 27 46	5.66	G8III v	2.7	88.9	D:B is B8, optical.
HR 7475			BD+16 3936	185622	105104		I		12750		19 39 25.4	+16 34 17	6.38	K4Ib	2.7	31.8	D:CPM companion B3V.
HR 7479	α	5	BD+17 4042	185758	105120		I		12766		19 40 05.8	+18 00 50	4.37	G1II	6.8	90.	D:Companions B and C optical.,N:Sham; Alsahm. Names originally corresponded to whole constellation Sagitta.
HR 7488	β	6	BD+17 4048	185958	105133	1513	I				19 41 02.9	+17 28 34	4.37	G8IIIaCN0.5			G:Red star Pleiades group.
HR 7536	δ	7	BD+18 4240	187076	105259	743	I	W		Del Sge	19 47 23.3	+18 32 03	3.82	M2II+A0V			D:Suspected visual double probably single image, composite spectrum. Secondary either B6 or A0V.,G:In reflection nebula; Gamma Cas-type nebula. Assoc. of Delta Sge with nebula probable but not certain; nebula,G:could be HII region excited by O8f star, 9 Sge, HR 7574.,SB:3725d, K 7.5k/s, V0 +1.9k/s, asini 364, vsini of both components =<50k/s.,VAR:Amp. 0.09p.
HR 7546	ζ	8	BD+18 4254	187362	105298				12973		19 48 58.7	+19 08 32	5.00	A3V	0.5	0.2	D:AB 5.5 A1V, 6.2 A3V, 22.8y, a = 0.146". Masses 4.0, 2.0 solar. C, 8.7v at 8" physical. Speckle interferometry 1985.5,D:gives sep. 0.180".,DYN:0.010".,RV:ADS 12973A, suspected SB.
HR 7574		9	BD+18 4276	188001	105360					12503	19 52 21.8	+18 40 19	6.23	O7.5Iaf			G:Within 1d of HII reg. S84.,S:Shell star. Also classified O8If.,VAR:E?, 6.20 - 6.25V, amp. 0.06B, over 80d? Variable polarization. Expanding atmosphere.
HR 7609		10	BD+16 4067	188727	105436					S Sge	19 56 01.3	+16 38 05	5.36	G5Ib v			RV:Also varies with period 8.4d.,SB:676.2d, K 15.0k/s, V0 -10.0k/s, asini 135.,VAR:CDelta 5.28 - 6.04V, 8.382173d. Period varies. Spectrum varies, F6Ib-G5Ib.
HR 7616			BD+20 4351	188971	87963						19 57 00.2	+20 59 53	6.48 R	A2IV
HR 7622		11	BD+16 4081	189090	105471	3592					19 57 45.4	+16 47 21	5.53	B9III
HR 7635	γ	12	BD+19 4229	189319	105500	752	I			12638	19 58 45.4	+19 29 32	3.47	M0-III e			G:Hyades group.,S:Ultraviolet FeII emission.
HR 7645		13	BD+17 4183	189577	105522		I		13230	VZ Sge	20 00 03.3	+17 31 00	5.37	M4IIIa	7.5	28.5	VAR:Lb? 5.27 - 5.57V, 7.0 - 7.24p.
HR 7662			BD+18 4365	190211	105608		I	W			20 03 16.4	+18 30 02	5.96	K3II-III+G8IV	3.3	47.1
HR 7672		15	BD+16 4121	190406	105635			W		12757	20 04 06.2	+17 04 12	5.80	G1V	0.9	203.7
HR 7679	η	16	BD+19 4277	190608	105659	3609	I				20 05 09.5	+19 59 28	5.10	K2III			G:Hyades group.
HR 7696			BD+16 4153	191178	105733		I				20 08 06.5	+16 39 51	6.42	M3III
HR 7705	θ	17	BD+20 4453	191570	88276				13442 A		20 09 56.6	+20 54 55	6.48	F5IV	0.6	83.9	D:AB binary. B, 8.7v at 13". C, optical.,DYN:0.016".
HR 7713			BD+20 4462	191814	88309						20 11 03.5	+21 08 05	6.22	K0
HR 7746		18	BD+21 4130	192836	88433						20 16 19.7	+21 35 55	6.13	K1III			G:UMa stream.
HR 7780			BD+17 4294	193579	105991		I				20 20 21.4	+17 47 35	5.80	gK5

Revised+Historic NGC/IC, Version 22/9, © Dr. Wolfgang Steinicke ^[277]
Planetary Nebulae
Name	RA	Dec	Type	bMag	vMag	Dim	Dreyer Description	Identification, Remarks
NGC 6879	20 10 26.6	+16 55 25	PN	13.0	12.5	0.15	planetary, stellar = 10m	PK 57-8.1, CS=15.0
NGC 6886	20 12 42.8	+19 59 24	PN	12.2	11.4	0.17	planetary, stellar = 10 m	PK 60-7.2, CS=15.7
IC 4997	20 20 08.8	+16 43 56	PN	11.6	10.5	0.22	Planetary, stellar	PK 58-10.1, CS=14.6
Globular Clusters
Name	RA	Dec	Type	bMag	vMag	Dim	Dreyer Description	Identification, Remarks
NGC 6838	19 53 46.1	+18 46 44	XI		8.4	7.2	Cl, vL, vRi, pmC, st 11…16	M 71, GCL 115

«Strasbourg-ESO Catalogue of Galactic Planetary Nebulae» Acker et al., 1992 ^[141]
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 G050.1+03.3	19 11 31	+16 51 32	M 1-67	50+03.1	19092+1646	MERRILL 1938	ARO 10, He 2- 427, Sh 2- 80, VV 220, VV' 481	81.	90.				AG82 350, CSI +16 -19093, LS II +164, NSV 11797, WR 124	U: 12.16, B: 12.20, V: 11.16	WN 8
PN G051.0+02.8	19 15 00	+17 22 48	WhMe 1			WHITELOCK et al 1986		0.						B: 14.56, V: 13.42	? + B9V
PN G051.0+03.0	19 14 05	+17 31 34	He 2-430	51+03.1	19118+1726	HENIZE 1964	ARO 308, AS 345, MHa 305- 11	< 5.	1.7
PN G051.3+01.8	19 19 18	+17 11 49	PM 1-295			PREITE-MARTINEZ 1988	TCSS 1	20.			-13. ± 50.			B: 16.7, V: 15.1
PN G051.5+06.1	19 03 37	+19 21 23	K 1-17	51+06.1	19014+1916	KOHOUTEK 1963	ARO 83	45.					AG82 341	B: 19.2
PN G052.9+02.7	19 19 03	+19 02 21	K 3-31	52+02.1	19168+1856	KOHOUTEK 1964	ARO 315	0.	1.5
PN G053.2-01.5	19 35 18	+17 13 02	K 3-38	53-01.1	19330+1706	KOHOUTEK 1964		4.	4.7
PN G053.3+03.0	19 18 41	+19 33 56	A 59	53+03.1	19164+1928	ABELL 1955	A55 48, ARO 84, VV' 494	87.	75.					B: 22.21, V: 21.15
PN G053.8-03.0	19 42 10	+17 05 08	A 63	53-03.1		ABELL 1955	A55 51, ARO 161, VV' 509	40.					AG82 379, CSI +16 -19399, HV 5452, UBV 16747, UU Sge	U: 14.35, B: 15.05, V: 14.67	sdO + K-MV
PN G054.4-02.5	19 41 34	+17 45 18	M 1-72	54-02.1	19393+1738	MINKOWSKI 1946	ARO 159, He 2- 444, VV 239, VV' 507	< 10.	0.7					B: 18.9, V: 17.7
PN G055.1-01.8	19 40 25	+18 49 19	K 3-43	55-01.1	19382+1842	KOHOUTEK 1964		2.8							late-type,var.
PN G056.8-06.9	20 02 36	+17 36 50	K 3-51	56-06.1	20003+1728	KOHOUTEK 1964	ARO 340	15. :
PN G057.2-08.9	20 10 27	+16 55 20	NGC 6879	57-08.1	20081+1646	PICKERING 1883	ARO 107, He 2- 455, VV 249, VV' 525	5.	5.		+9.0 ± 8.1	21.5 (O-III)	AG82 398, CSI +16 -20082, GCRV 12528	B: 14.9, V: 14.8	Of/WR ?
PN G058.3-10.9	20 20 09	+16 43 53	IC 4997	58-10.1	20178+1634	FLEMING 1896	ARO 38, He 2- 464, VV 256, VV' 532	1.6	1.6		-66.2 ± 1.3	14.5 (O-III), 21.5 (N-II)	AG82 405, CSI +16-20178 0, HD 193538, QV Sge	B: 14.6, V: 14.4	Of/WR
PN G058.6-05.5	20 01 42	+19 54 41	WeSb 5			WEINBERGER et al 1981		150.					AG82 395	B: 17.4
PN G060.0-04.3	20 00 11	+21 42 58	A 68	60-04.1	19579+2134	ABELL 1955	A55 55, ARO 166, VV' 522	38.					AG82 394	U: 13.42, B: 13.52, V: 13.26
PN G060.1-07.7	20 12 43	+19 59 22	NGC 6886	60-07.2	20104+1950	COPELAND 1884	ARO 109, He 2- 458, VV 252, VV' 528	5.5		1.7	-35.8 ± 1.1	20.0 (O-III), 25.5 (N-II)	AG82 402, CSI +19 -20105, GCRV 12572	V: 18.
PN G060.3-07.3	20 11 56	+20 20 06	He 1- 5	60-07.1	20097+2010	HENIZE 1961	ARO 169, He 2- 457, He 3-1844	29.		2.0	+39.1 ± 4.5	34.0 (O-III), 34. (N-II)	AG82 400, CSI +20 -20097, CSV 5066, FG Sge, LS II +20 19		var.;G8-K0 Ia
PN G061.4-09.5	20 22 22	+20 06 18	NGC 6905	61-09.1	20201+1956	HERSCHEL 1831	ARO 75, He 2- 466, VV 257, VV' 535	40.		1.0	-8.4 ± 1.7	43.5 (O-III)	AG82 408, CSI +19-20201 0, HD 193949, PLX 4855	B: 16.3, V: 15.7	WC-OVI, WC 3

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