Andromeda XI

Andromeda XI (And 11) is a dwarf spheroidal galaxy about 2.6 million light-years away from the Sun[2] in the constellation Andromeda.[4] Discovered in 2006[2], And XI is a satellite galaxy of the Andromeda Galaxy (M31).

Andromeda XI
Observation data (J2000 epoch)
Constellation	Andromeda
Right ascension	00^h 46.3^m[1]
Declination	+33° 48′ 05″[1]
Redshift	-0.001399 ± 0.000015[1]
Helio radial velocity	(-419 ± 4.4) km/s[1]
Distance	2.6 ± 325 Mly (830 kpc)[2]
Absolute magnitude (V)	−7.3[3]
Characteristics
Type	dSph D[1]
Apparent size (V)	0.5 arcmin [4]
Notable features	satellite galaxy of the Andromeda Galaxy
Other designations
And XI, PGC 5056923

References

"NAME Andromeda XI". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-11-03.
"The Galaxies of the Local Group". Retrieved 2017-11-03.
Yang, S.-C; Sarajedini, A (2012). "HST/WFPC2 Imaging of the Dwarf Satellites And XI and And XIII : HB Morphology and RR Lyraes". Monthly Notices of the Royal Astronomical Society. 419 (2): 1362. arXiv:1109.2038. Bibcode:2012MNRAS.419.1362Y. doi:10.1111/j.1365-2966.2011.19792.x.
"Andromeda XI". Retrieved 2017-11-03.

Andromeda Galaxy
Location	Andromeda Galaxy → Andromeda subgroup → Local Group → Local Sheet → Virgo Supercluster → Laniakea Supercluster → Observable universe → Universe Each → may be read as "within" or "part of".	Andromeda Galaxy
Satellite galaxies	M32 M110 NGC 185 NGC 147 Andromeda I Andromeda II Andromeda III Andromeda IV* Andromeda V Andromeda VI Andromeda VII Andromeda VIII Andromeda IX Andromeda X Andromeda XI Andromeda XII Andromeda XIII Andromeda XIV Andromeda XV Andromeda XVI Andromeda XVII Andromeda XVIII Andromeda XIX Andromeda XX Andromeda XXI Andromeda XXII Andromeda XXIII Andromeda XXIV Andromeda XXV Andromeda XXVI Andromeda XXVII Andromeda XXVIII Andromeda XXIX Triangulum subgroup* *It is uncertain whether Triangulum is a companion galaxy of the Andromeda Galaxy
Catalogued stars	AE Andromedae M31-RV
Other	Andromeda–Milky Way collision S Andromedae Mayall II M32p NGC 206 3XMM J004232.1+411314
Category

Bayer	α β γ δ ε ζ η θ ι κ λ μ ν ξ ο π ρ σ τ υ φ χ ψ ω
Flamsteed	2 3 4 5 6 7 8 9 10 11 12 13 14 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
Variable	R T U W Z RT RU RV RX SU SW TU TW WZ XZ AB AC AD AE AR BM BX CC CN DS DX EG ET EU FF GP GR GY HN KK KX KZ LL LP LQ OP OS OU PX QR QV QX V385 V455 V529
HD	3 166 895 1185 1606 2421 2767 2942 3322 3346 4778 5608 5789/5788 6114 7853 8673 10307 13931 14622 15082 16004 16028 16175 217811 220105 221246 221776 222109 222399 223229 224365 224801 225218
Other	3XMM J004232.1+411314 6 Persei ADS 48 Groombridge 34 HAT-P-6 HAT-P-16 HAT-P-19 HR 178 HR 8768 M31-RV NGC 44 NGC 82 NGC 84 NGC 91 NGC 162 NGC 464 PA-99-N2 Ross 248 WASP-1 WISE 0146+4234 WISE J0005+3737 WISE J004945.61+215120.0

Exoplanets	14 Andromedae b Upsilon Andromedae b c d e Gliese 15 Ab HD 13931 b HD 16175 b HAT-P-6b HAT-P-32b WASP-1b WASP-33b

Star clusters	Mayall II NGC 206 NGC 272 NGC 752 NGC 956 NGC 7686

Nebulae	NGC 7662

NGC	5 13 19 21 27 39 43 48 49 51 67 68 69 70 71 72 74 76 79 80 81 83 85 86 90 93 94 96 97 108 109 112 140 149 160 169 181 183 184 214 218 226 228 229 233 243 252 258 260 262 280 304 317 389 393 404 425 431 477 478 512 513 523 528 531 536 668 679 687 700 703 704 705 708 709 710 712 714 717 732 753 759 891 1000 7640 7836
Numbered	I II III IV V VIII IX X XI XVIII XIX XXI
Other	3C 66A 3C 66B Andromeda Galaxy Donatiello I Messier 32 Messier 110

Galaxy clusters	Abell 262 NGC 68 group

Astronomical events	GRB 101225A SN 1885A