Kataloge

Corona Australis / New General & Index Catalogue (NGC/IC)

Planetarische Nebel

Revised+Historic NGC/IC Version 22/9, © 2022 Dr. Wolfgang Steinicke [277]
Name RA Dec Typ bMag vMag Dim MD Dreyer Beschreibung Identifikation, Anmerkungen
IC 1297 19 17 23.4 -39 36 45 PN 10.6 10.7 0.4 3.750 Stellar (gaseous spectrum) PK 358-21.1; ESO 337-PN20; CS=12.9

Galaktische Nebel

Revised+Historic NGC/IC Version 22/9, © 2022 Dr. Wolfgang Steinicke [277]
Name RA Dec Typ Dim MD Dreyer Beschreibung Identifikation, Anmerkungen
NGC 6726 19 01 39.2 -36 53 29 RN 9 × 7 0.140 * 6·7 in F, pL, neb ESO 396-N13; pair with N 6727
NGC 6727 19 01 42.2 -36 52 35 RN 80 0.140 * 8 in F, pL neb ESO 396-N14; pair with N 6726
NGC 6729 19 01 55.3 -36 57 28 EN+RN 25 × 20 1.300 Var * (11…) with neb!! ESO 396-N*15
IC 4812 19 01 03.5 -37 03 37 RN+* 10 × 7 0.130 * 7 inv in eL neb ESO 396-*N12; CED 165A

Kugelsternhaufen

Revised+Historic NGC/IC Version 22/9, © 2022 Dr. Wolfgang Steinicke [277]
Name RA Dec Typ vMag Dim MD Dreyer Beschreibung Identifikation, Anmerkungen
NGC 6541 18 08 02.2 -43 42 40 GCL (III) 6.3 15 7.500 globular, B, R, eC, gbM, rrr, st 15…16 GCL 86; ESO 280-SC4

Galaxien

Revised+Historic NGC/IC Version 22/9, © 2022 Dr. Wolfgang Steinicke [277]
Name RA Dec Typ bMag vMag B-V SB Dim PA z D(z) MD Dreyer Beschreibung Identifikation, Anmerkungen
NGC 6768 1 19 16 32.7 -40 12 31 Gx (E4) 13.2 12.2 1.0 12.6 1.2 × 1.1 36 0.018576 78.46 vF, S, R, pslbM ESO 337-18; MCG -7-39-10
NGC 6768 2 19 16 29.7 -40 13 22 Gx (S0) 13.9 12.9 1.0 11.2 0.6 × 0.4 5 0.019850 83.84 vF, S, R, pslbM ESO 337-17; MCG -7-39-9
IC 4808 19 01 07.5 -45 18 51 Gx (Sc) 12.9 12.3 0.6 12.7 2 × 0.8 45 0.016950 71.60 55.250 vF, cL, cE 45°, lbM, susp ESO 282-3; IRAS 18574-4523

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

Quellenangaben

  • [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