NGC 68 group

NGC 68 group

Observation data (Epoch )
Constellation(s)	Andromeda
Right ascension	main group 00^h 18^m 30^s cluster center 00^h 18^m 45^s
Declination	main group 30° 03′ 00″ cluster center 30° 00′ 00″
Brightest member	NGC 68
Number of galaxies	40 (confirmed) 60+ (possible)^[1]
Richness class	Group 0/1
Bautz-Morgan classification	type II/III
Velocity dispersion	~6750^[1]
Redshift	0.019 to 0.025
Distance (co-moving)	~300 mly
Other designations
[M98j] 003, VV 166, RSCG 01, WBL 007, USCG U012, RASSCALS SRGb 062, PCC S34-115, HOLM 006, SRGb 062, DOC SRGb 062, WP 01, PPS2 060, HDCE 0011
See also: Galaxy groups, Galaxy clusters, List of galaxy clusters

The NGC 68 galaxy group is a cluster of at least 40 galaxies around the elliptical galaxy NGC 68. The main group was discovered in 1784 by William Herschel, who listed the galaxies as a single object. Later, in the 1880s, John Louis Emil Dreyer managed to discern the main galaxies and cataloged them each as NGC 68, NGC 70, and NGC 71.^[2]

Superimposed on the group is a smaller cluster around 220 mly away, which includes AGC 102760, UGC 152, and UGC 166.

Members

galaxy	RA	DEC	redshift	size (ly)	distance (mly)
NGC 67	00^h 18^m 12.18^s	30° 03′ 17.5″	0.020734^[1]	40,000	275^[3]
NGC 67a	00^h 18^m 14.83^s	30° 03′ 45″	0.022162	35,000	300
NGC 68	00^h 18^m 18.48^s	30° 04′ 15.4″	0.01913	90,000	260
NGC 69	00^h 18^m 20.5^s	30° 02′ 21.2″	0.022285	80,000	300
NGC 70	00^h 18^m 22.6^s	30° 04′ 44″	0.023907	180,000	320
NGC 71	00^h 18^m 23.6^s	30° 03′ 45″	0.022339	130,000	300
NGC 72	00^h 18^m 28.36^s	30° 02′ 23.7″	0.024213	120,000	325
NGC 72a	00^h 18^m 34.35^s	30° 02′ 08″	0.022399	25,000	300
NGC 74	00^h 18^m 49.39^s	30° 03′ 39.1″	0.023646	65,000	315
GALEXASC J001817.48+295854.3	00^h 18^m 17^s	29° 58′ 50″	0.024981	30,000^[4]	335
PGC 1183	00^h 18^m 14.05^s	29° 57′ 05″	0.020374	70,000	275
PGC 1163	00^h 17^m 46.02^s	30° 09′ 4.5″	0.021885	75,000	295
2MASX J00174636+2957409	00^h 17^m 46.3^s	29° 57′ 39″	0.024113	60,000	325
2MASX J00183652+2955586	00^h 18^m 36.5^s	29° 55′ 55.2″	0.021475	30,000	290
2MASX J00181971+2954372	00^h 18^m 19.67^s	29° 54′ 35″	0.022192	50,000	300
2MASX J00181589+2954145	00^h 18^m 15.92^s	29° 54′ 12.5″	0.024093	45,000	325
2MASX J00191196+3000506	00^h 18^m 11.97^s	30° 00′ 47.8″	0.023456	45,000	315
2MASX J00191966+3005286	00^h 19^m 19.64^s	30° 05′ 26″	0.02389	60,000	320
2MASX J00183355+2950272	00^h 18^m 31.52^s	29° 50′ 24.3″	0.020981	30,000	285
2MASX J00174173+2951151	00^h 17^m 41.71^s	29° 51′ 12.4″	0.022359	35,000	300
PGC 1138	00^h 17^m 17.38^s	30° 12′ 30.5″	0.020988	55,000	285
PGC 1119	00^h 17^m 02.63^s	29° 56′ 29.7″	0.023116	80,000	310
NGC 76	00^h 19^m 37.81^s	29° 55′ 59.3″	0.02444	120,000	330
AGC 102761	00^h 19^m 43.83^s	30° 03′ 25.5″	0.023590	10,000	320
2MASX J00164915+3010462	00^h 16^m 49.16^s	30° 10′ 43.5″	0.024133	40,000	325
PGC 1266	00^h 19^m 43.06^s	29° 56′ 4.1″	0.022339	45,000	300
2MASX J00181849+2942002	00^h 18^m 18.47^s	29° 41′ 57.7″	0.022749	45,000	305
2MASX J00194032+2949286	00^h 19^m 40.35^s	29° 49′ 26.1″	0.025621	50,000	345
PGC 1090	00^h 16^m 32.85^s	30° 20′ 42.5″	0.021331	85,000	290
PGC 1220	00^h 18^m 55.28^s	30° 30′ 46.6″	0.02408	50,000	325
2MASX J00160018+3002561	00^h 16^m 00.31^s	30° 02′ 54.9″	0.022676	45,000	305
AGC 100116	00^h 15^m 55.55^s	30° 04′ 25.2″	0.022379	35,000	305
PGC 1084	00^h 16^m 24.93^s	30° 22′ 25.5″	0.021148	55,000	290
2MASX J00203207+3003013	00^h 20^m 32.06^s	30° 02′ 58.8″	0.021058	35,000	285

References

1 2 3 "objects within 30 arcminutes of NGC 72a". NED. NASA/IPAC. Retrieved 18 May 2014.
↑ Seligman, Courtney. "New General Catalog Objects: NGC 50 - NGC 99". Cseligman.com. Retrieved 18 May 2014.
↑ Wright, Ned. "Ned Wright's Javascript Cosmology Calculator". http://www.astro.ucla.edu. UCLA. Retrieved 18 May 2014. External link in |work= (help)
↑ "Angular Size Calculator". www.1728.org. Retrieved 18 May 2014.

Andromeda constellation

Stars (list)

Bayer	α (Alpheratz) β (Mirach) γ (Almach) δ ε ζ η θ ι κ λ μ ν ξ (Adhil) ο π ρ σ τ υ (Titawin) φ χ ψ ω

Flamsteed	2 3 4 5 6 7 8 9 10 11 12 13 14 (Veritate) 15 18 22 23 26 28 32 36 39 41 44 45 47 49 51 55 56 58 59 60 62 63 64 65 66 6 Per

Variable	R S T U W X Y Z RR RS RT RU RV RW RX RY SS ST SU SW TU TW VX WZ XX XZ AB AC AD AE AF AR BM BX CC CG CN DS DX EG ET EU FF GO GP GR GY HN KK KX KZ LL LN LP LQ OP OS OU PX PY QR QX V385 V455 V529

HR	1 8 17 36 40 44 52 53 56 71 75 78 79 104 110 122 134 152 156 157 178 205 249 272 275 282 283 289 355 372 376 379 396 409 415 452 483 495 504 518 521 551 552 556 619 647 653 671 673 679 687 746 748 756 768 769 8744 8801 8837 8857 8875 8884 8925 8927 8941 8950 8955 8962 8973 8977 8986 9011 9053 9057 9074 9086 9105 9107

HD	800 8673 11884 13931 14633 15082 16175 217731 218365 218393 218915 222155

Other	ADS 48 Groombridge 34 (GX/GQ) HAT-P-6 HAT-P-16 HAT-P-19 HAT-P-28 HAT-P-32 M31V J004437.99+412923.6 NGC 44 PSR B2303+46 PSR J0218+4232 Ross 248 (HH) WASP-1 WISE 0146+4234

Star clusters

Association	NGC 206

Open	NGC 752 NGC 956 NGC 7686

Globular	Mayall II

Nebulae

Planetary	M 1-1 NGC 7662

Galaxies

Messier	31 32 110

NGC	5 11 13 19 20 27 29 39 43 48 49 51 67 67A 68 69 70 71 72 72A 74 76 79 80 81 83 85 86 90 93 94 96 97 108 109 112 140 149 160 169 181 183 184 214 218 226 228 229 233 243 252 258 260 262 266 280 304 317 389 393 404 425 431 477 512 513 528 529 531 536 537 542 551 561 562 573 590 591 605 620 662 668 679 687 700 703 704 705 708 709 710 712 714 717 721 732 746 753 759 797 801 812 818 828 834 841 845 846 891 898 906 909 910 911 912 913 914 920 923 933 937 946 980 982 995 996 999 1000 7440 7445 7446 7449 7618 7640 7707 7831 7836

Other	Andromeda I Andromeda III Andromeda IV Andromeda V Andromeda VIII Andromeda IX Andromeda X Andromeda XI Andromeda XII Andromeda XXI B2 0206+35 3C 13 3C 46 3C 65 3C 66A 3C 66B IRAS 23365+3604 QSO B0133+476

Galaxy
clusters

Other

GRB 050824
SN 1885A

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