Catalogues

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

Galaxies

Revised+Historic NGC/IC Version 22/9, © 2022 Dr. Wolfgang Steinicke [277]
Name RA Dec Type bMag vMag B-V SB Dim PA z D(z) MD Dreyer Description Identification, Remarks
NGC 2573 01 41 53.2 -89 20 03 Gx (SBc) 14.1 13.5 0.6 13.8 1.9 × 0.7 85 0.008102 34.22 F, S, R, glbM, Polariss Austr ESO 1-1; IRAS 02425-8934; Polarissima australis
NGC 2573 A 23 12 14.6 -89 07 27 Gx (SBb) 14.7 13.9 0.8 14.0 2.1 × 0.6 18 0.008249 34.84 F, S, R, glbM, Polariss Austr ESO 1-9; AM 2247-892; IRAS 22443-8923
NGC 2573 B 23 07 32.0 -89 06 55 Gx (IBm) 15.1 14.5 0.6 14.0 1.5 × 0.5 120 0.008533 36.04 30.900 F, S, R, glbM, Polariss Austr ESO 1-8; AM 2240-892
NGC 6438 18 22 15.9 -85 24 06 Gx (S0) 12.7 11.7 1.0 12.5 1.6 × 1.4 156 0.008129 34.34 29.800 pB, R, vgbM ESO 10-1; AM 1806-852
NGC 6438 A 18 22 33.0 -85 24 22 Gx (Ring B) 12.6 11.6 1.0 12.5 2.7 × 1 32 0.008379 35.39 30.900 pB, R, vgbM ESO 10-2; AM 1806-852; IRAS 18061-8525
NGC 6557 18 21 24.7 -76 34 58 Gx (S0) 13.9 12.9 1.0 13.4 1.6 × 1.1 80 0.018356 77.53 53.950 vF, vS, R, glbM ESO 45-1; AM 1814-763
NGC 6920 20 43 57.1 -80 00 01 Gx (S0) 12.4 11.2 1.2 13.3 1.8 × 1.5 142 0.008667 36.61 pB, cS, R, psmbM ESO 26-4; AM 2036-801
NGC 7095 21 52 24.8 -81 31 53 Gx (Sc) 12.2 11.5 0.7 13.6 4 × 3.3 0.008573 36.21 18.310 F, pL, R, vglbM, * 13 inv ESO 27-1; FAIR 353; IRAS 21457-8145
NGC 7098 21 44 16.0 -75 06 39 Gx (SBa) 12.2 11.3 0.9 13.7 4 × 2.6 74 0.007942 33.55 29.100 pF, R, g, psmbM, am st ESO 48-5; IRAS 21393-7520
NGC 7637 23 26 28.3 -81 54 40 Gx (Sc) 13.2 12.5 0.7 13.9 2.1 × 1.9 36 0.012402 52.39 vF, pL, R, vlbM, * nr ESO 12-1; AM 2322-821; IRAS 23226-8211
IC 4333 14 05 19.5 -84 16 23 Gx (S0) 14.4 13.4 1.0 12.8 1.6 × 0.4 65 0.009060 38.27 eF, vS, eE 40°, susp ESO 8-5; IRAS 13574-8402; most southern IC object
IC 4864 19 40 06.0 -77 33 26 Gx (SBa) 14.8 13.5 1.3 12.8 1.5 × 0.4 176 0.020254 85.55 126.00 eF, vS, eE 70°, vF * sp 1' ESO 25-13; AM 1932-774
IC 4912 20 06 49.7 -77 21 27 Gx (Sc) 15.5 14.8 0.7 13.8 1.1 × 0.4 41 0.020474 86.48 69.850 eF, vS, F * np 1', susp ESO 25-16
IC 4928 20 10 11.9 -77 18 33 Gx (S) 16.5 15.7 0.8 13.4 0.7 × 0.2 24 0.043653 184.3 eF, vS, eE 25°, eF * n 1', susp ESO 46-6; IRAS 20034-7727
IC 5022 20 41 06.3 -76 26 59 Gx (SBR) 15.5 14.7 0.8 13.9 0.9 × 0.6 142 0.039244 165.7 eF, S, R, cbM, susp ESO 47-5
IC 5025 20 44 59.6 -76 59 04 Gx (Sbc) 15.2 14.4 0.8 13.4 1.5 × 0.3 108 0.021692 91.63 82.000 vF, vS, cE 125°, bM, susp ESO 47-10; FGCE 1510; IRAS 20389-7709
IC 5026 20 48 27.6 -78 04 08 Gx (Scd) 15.5 14.8 0.7 14.2 2.3 × 0.3 76 0.009174 38.75 35.280 eF, vS, mE 70°, lbM, susp ESO 26-6; FGCE 1519
IC 5040 20 52 19.5 -76 41 11 Gx (Sd) 15.2 14.6 0.6 13.7 0.8 × 0.6 6 0.022035 93.07 cB, S, R, susp ESO 47-14; IRAS 20461-7652

Legend

Key to columns [277]
Name NGC/IC Designation
RA Right Ascension (J2000.0)
Dec Declination (J2000.0)
Type Object type
bMag Photographic (blue) magnitude
vMag Visual magnitude
B-V Difference of visual and blue magnitude
SB Surface brightness (mag/arcmin2)
Dim Dimensions (arcmin)
PA Position Angle (°)
z Redshift (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
MD Metric 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 Description See below
Identification, Remarks

Dreyer Description

Descriptions according to J.L.E. Dreyer [313, 314, 315]
ab about
alm almost
am among
annul annular or ring nebula
att attached
b brighter
bet between
biN binuclear
bn brightest to n side
bs brightest to s side
bp brightest to p side
bf brightest to f side
B bright
c considerably
chev chevelure
co coarse, coarsely
com cometic (cometary form)
comp companion
conn connected
cont in contact
C compressed
Cl cluster
d diameter
def defined
dif diffused
diffic difficult
dist distance, or distant
D double
e extremely, excessively
ee most extremely
er easily resolvable
exc excentric
E extended
f following (eastward)
F faint
g gradually
glob. globular
gr group
i irregular
iF irregular figure
inv involved, involving
l little (adv.); long (adj.)
L large
m much
m magnitude
M middle, or in the middle
n north
neb nebula
nebs nebulous
neby nebulosity
nf north following
np north preceding
ns north-south
nr near
N nucleus, or to a nucleus
p preceding (westward)
pf preceding-following
p pretty (adv., before F. B. L, S)
pg pretty gradually
pm pretty much
ps pretty suddenly
plan planetary nebula (same as PN)
prob probably
P poor (sparse) in stars
PN planetary nebula
r resolvable (mottled, not resolved)
rr partially resolved, some stars seen
rrr well resolved, clearly consisting of stars
R round
RR exactly round
Ri rich in stars
s suddenly (abruptly)
s south
sf south following
sp south preceding
sc scattered
sev several
st stars (pl.)
st 9... stars of 9th magnitude and fainter
st 9..13 stars of mag. 9 to 13
stell stellar, pointlike
susp suspected
S small in angular size
S* small (faint) star
trap trapezium
triangle triangle, forms a triangle with
triN trinuclear
v very
vv _very_
var variable
* a single star
*10 a star of 10th magnitude
*7-8 star 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