Catalogues

Crux / New General & Index Catalogue (NGC/IC)

Open Clusters

Revised+Historic NGC/IC Version 22/9, © 2022 Dr. Wolfgang Steinicke [277]
NameRADecTypevMagDimMDDreyer DescriptionIdentification, Remarks
NGC 405212 02 00.0-63 13 18OCL (II1p)8.8101.209Cl, pRi, lCOCL 870; ESO 94-SC10
NGC 410312 06 39.5-61 15 00OCL (I3m)7.461.664Cl, pL, pC, iR, st 10…14OCL 871; ESO 130-SC5
NGC 418412 13 32.5-62 42 47OCL (I2p)2Cl, mC, st eSESO 130-SC10; OCL 877
NGC 433712 24 03.2-58 07 25OCL (II3p)8.93.50.489Cl, pRi, lC, st 12…14OCL 878; ESO 131-SC2
NGC 434912 24 06.0-61 52 13OCL (I2m)7.442.176Cl, vB, vL, lC, st 12…14OCL 882; ESO 131-SC3
NGC 443912 28 26.3-60 06 11OCL (II1p)8.441.785Cl, S, st 11…12OCL 884; ESO 131-SC6
NGC 460912 42 19.8-62 59 38OCL (II1p)6.961.223Cl, pL, pC, cE, st 10OCL 890; ESO 95-SC14
NGC 475512 53 39.0-60 21 42OCL (I3r)4.2101.976Cl, vL, st vB (κ Crucis)OCL 892; ESO 131-SC16; Jewel Box, Kappa Cru cluster

Legend

Key to columns [277]
NameNGC/IC Designation
RARight Ascension (J2000.0)
DecDeclination (J2000.0)
TypeObject type
bMagPhotographic (blue) magnitude
vMagVisual magnitude
B-VDifference of visual and blue magnitude
SBSurface brightness (mag/arcmin2)
DimDimensions (arcmin)
PAPosition Angle (°)
zRedshift (from NED or LEDA)
D(z)Distance derived from z in Mpc, using D(z) = cz/H0, with Hubble Parameter H0 = 71 (km/s)/Mpc
MDMetric distance: for galaxies with S = 1, 6, 7 or 8 in Mpc (from NED); for other types with S = 2, 3, 4, or 5 in kpc
Dreyer DescriptionSee below
Identification, Remarks

Dreyer Description

Descriptions according to J.L.E. Dreyer [313, 314, 315]
ababout
almalmost
amamong
annulannular or ring nebula
attattached
bbrighter
betbetween
biNbinuclear
bnbrightest to n side
bsbrightest to s side
bpbrightest to p side
bfbrightest to f side
Bbright
cconsiderably
chevchevelure
cocoarse, coarsely
comcometic (cometary form)
compcompanion
connconnected
contin contact
Ccompressed
Clcluster
ddiameter
defdefined
difdiffused
difficdifficult
distdistance, or distant
Ddouble
eextremely, excessively
eemost extremely
ereasily resolvable
excexcentric
Eextended
ffollowing (eastward)
Ffaint
ggradually
glob.globular
grgroup
iirregular
iFirregular figure
invinvolved, involving
llittle (adv.); long (adj.)
Llarge
mmuch
mmagnitude
Mmiddle, or in the middle
nnorth
nebnebula
nebsnebulous
nebynebulosity
nfnorth following
npnorth preceding
nsnorth-south
nrnear
Nnucleus, or to a nucleus
ppreceding (westward)
pfpreceding-following
ppretty (adv., before F. B. L, S)
pgpretty gradually
pmpretty much
pspretty suddenly
planplanetary nebula (same as PN)
probprobably
Ppoor (sparse) in stars
PNplanetary nebula
rresolvable (mottled, not resolved)
rrpartially resolved, some stars seen
rrrwell resolved, clearly consisting of stars
Rround
RRexactly round
Ririch in stars
ssuddenly (abruptly)
ssouth
sfsouth following
spsouth preceding
scscattered
sevseveral
ststars (pl.)
st 9...stars of 9th magnitude and fainter
st 9..13stars of mag. 9 to 13
stellstellar, pointlike
suspsuspected
Ssmall in angular size
S*small (faint) star
traptrapezium
triangletriangle, forms a triangle with
triNtrinuclear
vvery
vv_very_
varvariable
*a single star
*10a star of 10th magnitude
*7-8star of mag. 7 or 8
**double star (same as D*)
***triple star
!remarkable
!!very much so
!!!a magnificent or otherwise interesting object

References

  • [277] Historische Deep-Sky Kataloge; Dr. Wolfgang Steinicke; klima-luft.de/steinicke; 2021-02-17
  • [313] A New General Catalogue of Nebulae and Clusters of Stars, being the Catalogue of the late Sir John F.W. Herschel, Bart., revised, corrected, and enlarged; Dreyer, J. L. E.; Memoirs of the Royal Astronomical Society. 49: 1–237 (1888); Bibcode:1888MmRAS..49....1D
  • [314] Index Catalogue of Nebulæ found in the years 1888 to 1894, with Notes and Corrections to the New General Catalogue; Dreyer, J. L. E.; Memoirs of the Royal Astronomical Society, Vol. 51, p.185; 1895; Bibcode:1895MmRAS..51..185D
  • [315] Second Index Catalogue of Nebulae and Clusters of Stars; containing objects found in the years 1895 to 1907, with Notes and Corrections to the New General Catalogue and to the Index Catalogue for 1888–94; Dreyer, J. L. E.; Memoirs of the Royal Astronomical Society. 59: 105–198 (1910); Bibcode:1910MmRAS..59..105D