Brian Skiff's just-updated list of Local Group galaxies, the one I cited
this morning. It's a WordPerfect file, and I'm guessing it might be hard to
open on a PC. Just in case, here it is all cleaned up. From AppleWorks of
course.
Real handy list. It's in an amastro post that Skiff says the latest info
points to the SagDIG galaxy being outside our Group.
>>>
Local Group galaxies
version: 3 Mar 2003, Walker preprint
http://xxx.lanl.gov/abs/astro-ph/0303011
Working definition is that Local Group members must lie within about
1.2 Mpc radius of the barycenter of the group, which represents the zero-
velocity surface of the Hubble expansion.
Basic list comes from van den Bergh's article appearing in the May 2000
issue of PASP (2000PASP..112..529V). Positions are mostly from NED,
although in a few cases have been adjusted for low surface brightness
objects when the NED position is clearly in error. V magnitudes and
dimensions (mag. 25 isophote) are likewise from NED, although highly
uncertain in several cases for the nearby dwarf ellipticals. With a few
exceptions, the sizes are rounded to two significant figures, they being no
more accurate than +/-10 percent even in the best cases. Types are a mix
from NED and myself. Distances are adopted from Walker's 2003 conference
paper, given to 5 kpc precision when < 100 kpc, and 10 kpc when greater than
this. True uncertainties are still 10-20 percent, though for the LMC it is
probably only 5 percent.
Still to be done:
---calculate mean surface brightness from "best" available total magnitudes
and dimensions;
---inspect faint galaxies on PMM sky survey images to improve coords.
Name other RA (2000) Dec V dimens. type kpc
WLM 0 01 58 -15 27.7 10.6 12'x4' IB(s)m V 950
IC 10 0 20 20 +59 18.0 11: 6'.3x5'.1 IB(s)m IV 660:
Cetus 0 26 11 -11 02.5 14: dE 780
NGC 147 0 33 12 +48 30.5 9.5 13'x8' dE5 710
And III 0 35 29 +36 30.5 15: 4'.5x3'.0 dE 750
NGC 185 0 38 58 +48 20.2 9.2 12'x10' dE3 640
NGC 205 M110 0 40 22 +41 41.1 8.1 22'x11' SA0- 810
NGC 221 M32 0 42 42 +40 51.9 8.1 8'.7x6'.5 cE2 770
NGC 224 M31 0 42 44 +41 16.1 3.4 190'x60' SA(s)b I-II 770
And I 0 45 40 +38 02.2 13.6 2'.5x2'.5 E3 810:
SMC 0 52 44 -72 49.7 2.3 320'x185' IB(s)m V 60
Sculptor 1 00 09 -33 42.5 9: 40'x31' dE 85
Pisces LGS 3 1 03 54 +21 53.0 18: 2'x2' Im VI? 620
IC 1613 1 04 46 +02 07.1 9.2 16'x15' IB(s)m V 740:
And V 1 10 17 +47 37.7 15 dE 810:
And II 1 16 30 +33 25.2 13 3'.6x2'.5 dE 680
NGC 598 M33 1 33 51 +30 39.6 5.7 71'x42' SA(s)cd II-III 930
Phoenix 1 51 07 -44 26.7 12.5: 4'.9x4'.1 IAm V 440:
Fornax 2 39 59 -34 27.0 9: 17'x13' dE0 140
LMC 5 23 34 -69 45.4 0.6 645'x550' IB(s)m IV 50
Carina 6 41 37 -50 58.0 16? 23'x16' E3 100
Leo A DDO 69 9 59 26 +30 44.8 12: 5'.1x3'.1 IBm V 800
Leo I 10 08 27 +12 18.5 10: 9'.8x7'.4 dE 260
Sextans 10 13 03 -01 36.9 12: dE 85:
Leo II DDO 93 11 13 29 +22 09.3 12.0: 12'x11' dE0 210
UMi 15 09 11 +67 12.9 11: 30'x19' dE 75
Draco 17 20 12 +57 54.9 10: 36'x25' dE 95
Milky Way 17 45 40 -29 00.5 SB:(rs?)bc: II?
Sgr I 18 55 03 -30 28.7 dE? 28
SagDIG 19 29 59 -17 40.7 15: 2'.9x2'.1 IB(s)m: V 1200
NGC 6822 19 44 56 -14 48.1 9: 16'x14' IB(s)m V 500
Aquarius DDO 210 20 46 52 -12 50.9 13.9: 2'.2x1'.1 IB(s)m V 950
Tucana 22 41 50 -64 25.2 15: 2'.9x1'.2 dE4 900
And VII 23 26 31 +50 41.5 13: 2'.5x2'.0 dE? 690:
Pegasus DDO 216 23 28 35 +14 44.6 13: 5'.0x2'.7 Im V 760
And VI 23 51 46 +24 35.0 14: 4'.0x2'.0 dE? 790
Not in the Local Group:
many galaxies associated with IC 342/NGC 2403, such as the Maffei galaxies,
Cas I, etc.
NGC 3109 seems to be the largest of a group of dwarf galaxies including
Antlia, Sextans A and B, and some others.
-- Jamie Dillon <*> speech pathologist jamie_dillon@No-Spam " ... " - Harpo Marx