Britannia Object Catalogues: The Local Group Of Galaxies

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The Local Group Of Galaxies

DISTANCE
DIAMETER

GALAXY TYPE RIGHT
ASCENSION
(1980) DECLINATION
(1980) VISUAL
MAGNITUDE (kpc) (kly) (kpc) (kly) ABSOLUTE
MAGNITUDE RADIAL
VELOCITY
(km/s) MASS
(Solar Masses)

h m ° ’

Our Galaxy Sb - - - - - - 30 100 (-21) - 2 × 10¹¹

Large Magellanic Cloud Irr I 5 26 -69 0.9 48 160 10 30 -17.7 +276 2.5 × 10¹⁰

Small Magellanic Cloud Irr I 0 51 -73 2.5 56 180 8 25 -16.5 +168

Ursa Minor system E4 (dwarf) 15 8.6 +67 11 70 220 1 3 (-9)

Sculptor system E3 (dwarf) 0 58.9 -33 48 8.0 83 270 2.2 7 -11.8 (2 to 4 × 10⁶

Draco system E2 (dwarf) 17 19.9 +57 56 100 330 1.4 4.5 (-10)

Carina system E3 (dwarf) 6 41.1 -50 57 (170) (550) 1.5 4.8 (-10)

Fornax system E3 (dwarf) 2 38.9 -34 36 8.4 250 800 4.5 15 -13.6 +39 (1.2 to 2 × 10⁷)

Leo II system E0 (dwarf) 11 12.4 +22 16 230 750 1.6 5.2 -10.0 (1.1 × 10⁶)

Leo I system E4 (dwarf) 10 7.4 +12 24 12.0 280 900 1.5 5 -10.4

NGC 6822 Irr I 19 43.8 -14 50 8.9 460 1500 2.7 9 -14.8 -32

NGC 147 E6 0 32.0 +48 23 9.73 570 1900 3 10 -14.5

NGC 185 E2 0 37.8 +48 14 9.43 570 1900 2.3 8 -14.8 -305

NGC 205 E5 0 39.2 +41 35 8.17 680 2200 5 16 -16.5 -239

NGC 221 (M32) E3 0 41.6 +40 46 8.16 680 2200 2.4 8 -16.5 -214

IC 1613 Irr I 1 2.1 +1 51 9.61 680 220 5 16 -14.7 -238

Andromeda galaxy Sb 0 41.6 +41 10 3.47 680 2200 40 130 -21.2 -266 3 × 10¹¹

And I E0 (dwarf) 0 44.6 +37 54 (14) (680) (2200) 0.5 1.6 (-11)

And II E0 (dwarf) 1 15.2 +33 18 (14) (680) (2200) 0.7 2.3 (-11)

And III E0 (dwarf) 0 34.2 +36 24 (14) (680) (2200) 0.9 0.9 (-11)

NGC 598 (M33) Sc 1 32.7 +30 33 5.79 720 2300 17 60 -18.9 -189 8 × 10⁹

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Database Last Updated: September 02 2017 21:54:11.
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							DISTANCE		DIAMETER
GALAXY	TYPE	RIGHT ASCENSION (1980)		DECLINATION (1980)		VISUAL MAGNITUDE	(kpc)	(kly)	(kpc)	(kly)	ABSOLUTE MAGNITUDE	RADIAL VELOCITY (km/s)	MASS (Solar Masses)

		h	m	°	’
Our Galaxy	Sb	-	-	-		-	-	-	30	100	(-21)	-	2 × 10¹¹
Large Magellanic Cloud	Irr I	5	26	-69		0.9	48	160	10	30	-17.7	+276	2.5 × 10¹⁰
Small Magellanic Cloud	Irr I	0	51	-73		2.5	56	180	8	25	-16.5	+168
Ursa Minor system	E4 (dwarf)	15	8.6	+67	11		70	220	1	3	(-9)
Sculptor system	E3 (dwarf)	0	58.9	-33	48	8.0	83	270	2.2	7	-11.8		(2 to 4 × 10⁶
Draco system	E2 (dwarf)	17	19.9	+57	56		100	330	1.4	4.5	(-10)
Carina system	E3 (dwarf)	6	41.1	-50	57		(170)	(550)	1.5	4.8	(-10)
Fornax system	E3 (dwarf)	2	38.9	-34	36	8.4	250	800	4.5	15	-13.6	+39	(1.2 to 2 × 10⁷)
Leo II system	E0 (dwarf)	11	12.4	+22	16		230	750	1.6	5.2	-10.0		(1.1 × 10⁶)
Leo I system	E4 (dwarf)	10	7.4	+12	24	12.0	280	900	1.5	5	-10.4
NGC 6822	Irr I	19	43.8	-14	50	8.9	460	1500	2.7	9	-14.8	-32
NGC 147	E6	0	32.0	+48	23	9.73	570	1900	3	10	-14.5
NGC 185	E2	0	37.8	+48	14	9.43	570	1900	2.3	8	-14.8	-305
NGC 205	E5	0	39.2	+41	35	8.17	680	2200	5	16	-16.5	-239
NGC 221 (M32)	E3	0	41.6	+40	46	8.16	680	2200	2.4	8	-16.5	-214
IC 1613	Irr I	1	2.1	+1	51	9.61	680	220	5	16	-14.7	-238
Andromeda galaxy	Sb	0	41.6	+41	10	3.47	680	2200	40	130	-21.2	-266	3 × 10¹¹
And I	E0 (dwarf)	0	44.6	+37	54	(14)	(680)	(2200)	0.5	1.6	(-11)
And II	E0 (dwarf)	1	15.2	+33	18	(14)	(680)	(2200)	0.7	2.3	(-11)
And III	E0 (dwarf)	0	34.2	+36	24	(14)	(680)	(2200)	0.9	0.9	(-11)
NGC 598 (M33)	Sc	1	32.7	+30	33	5.79	720	2300	17	60	-18.9	-189	8 × 10⁹