Maffei 2
Galaxy in the constellation Cassiopeia
Maffei 2 | |
---|---|
Image by Two Micron All Sky Survey (2MASS) | |
Observation data (J2000 epoch) | |
Constellation | Cassiopeia |
Right ascension | 02h 41m 55.1s[1] |
Declination | +59° 36′ 15″[1] |
Redshift | -17 ± 5 km/s[1] |
Distance | 9.8 Mly[2] |
Apparent magnitude (V) | 16.0[1] |
Characteristics | |
Type | SAB(rs)bc[1] |
Apparent size (V) | 15.2′ × 7.0′[1] |
Other designations | |
UGCA 39,[1] PGC 10217,[1] Sharpless 197 |
Maffei 2 is an intermediate spiral galaxy about 10 million light-years away[2] in the constellation Cassiopeia. Maffei 2 and Maffei 1 were both discovered by Paolo Maffei in 1968 from their infrared emission. Maffei 2 lies in the Zone of Avoidance and is about 99.5% obscured by the Milky Way's foreground dust clouds,[3] and as a result is barely detectable at optical wavelengths. It had been suggested soon after its discovery that Maffei 2 may be a member of the Local Group, but it is now thought to be a member of another nearby group, the IC 342/Maffei Group, the galaxy group that is the closest to the Local Group.
See also
References
- ^ a b c d e f g h "NED results for object Maffei 2". NASA/IPAC Extragalactic Database. Retrieved 2006-11-25.
- ^ a b Karachentsev, I. D. (2005). "The Local Group and Other Neighboring Galaxy Groups". Astronomical Journal. 129 (1): 178–188. arXiv:astro-ph/0410065. Bibcode:2005AJ....129..178K. doi:10.1086/426368. S2CID 119385141.
- ^ "The Hidden Galaxy". NASA. Retrieved 2011-05-03.
External links
Wikimedia Commons has media related to Maffei 2.
- "Maffei 2". Spider. SEDS.
- "Maffei 2". UA Astronomy. University of Alabama.
- Maffei 2 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
- Nemiroff, R.; Bonnell, J., eds. (9 March 2010). "Galaxies Beyond the Heart: Maffei 1 and 2". Astronomy Picture of the Day. NASA.
- "UGCA 39". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 25 March 2018.
- v
- t
- e
- Sh 2-1
- Sh 2-2
- Sh 2-3
- Sh 2-4
- Sh 2-5
- Sh 2-6
- Sh 2-7
- Sh 2-8
- Sh 2-9
- Sh 2-10
- Sh 2-11
- Sh 2-12
- Sh 2-13
- Sh 2-14
- Sh 2-15
- Sh 2-16
- Sh 2-17
- Sh 2-18
- Sh 2-19
- Sh 2-20
- Sh 2-21
- Sh 2-22
- Sh 2-23
- Sh 2-24
- Sh 2-25
- Sh 2-26
- Sh 2-27
- Sh 2-28
- Sh 2-29
- Sh 2-30
- Sh 2-31
- Sh 2-32
- Sh 2-33
- Sh 2-34
- Sh 2-35
- Sh 2-36
- Sh 2-37
- Sh 2-38
- Sh 2-39
- Sh 2-40
- Sh 2-41
- Sh 2-42
- Sh 2-43
- Sh 2-44
- Sh 2-45
- Sh 2-46
- Sh 2-47
- Sh 2-48
- Sh 2-49
- Sh 2-50
- Sh 2-51
- Sh 2-52
- Sh 2-53
- Sh 2-54
- Sh 2-55
- Sh 2-56
- Sh 2-57
- Sh 2-58
- Sh 2-59
- Sh 2-60
- Sh 2-61
- Sh 2-62
- Sh 2-63
- Sh 2-64
- Sh 2-65
- Sh 2-66
- Sh 2-67
- Sh 2-68
- Sh 2-69
- Sh 2-70
- Sh 2-71
- Sh 2-72
- Sh 2-73
- Sh 2-74
- Sh 2-75
- Sh 2-76
- Sh 2-77
- Sh 2-78
- Sh 2-79
- Sh 2-80
- Sh 2-81
- Sh 2-82
- Sh 2-83
- Sh 2-84
- Sh 2-85
- Sh 2-86
- Sh 2-87
- Sh 2-88
- Sh 2-89
- Sh 2-90
- Sh 2-91
- Sh 2-92
- Sh 2-93
- Sh 2-94
- Sh 2-95
- Sh 2-96
- Sh 2-97
- Sh 2-98
- Sh 2-99
- Sh 2-100
- Sh 2-101
- Sh 2-102
- Sh 2-103
- Sh 2-104
- Sh 2-105
- Sh 2-106
- Sh 2-107
- Sh 2-108
- Sh 2-109
- Sh 2-110
- Sh 2-111
- Sh 2-112
- Sh 2-113
- Sh 2-114
- Sh 2-115
- Sh 2-116
- Sh 2-117
- Sh 2-118
- Sh 2-119
- Sh 2-120
- Sh 2-121
- Sh 2-122
- Sh 2-123
- Sh 2-124
- Sh 2-125
- Sh 2-126
- Sh 2-127
- Sh 2-128
- Sh 2-129
- Sh 2-130
- Sh 2-131
- Sh 2-132
- Sh 2-133
- Sh 2-134
- Sh 2-135
- Sh 2-136
- Sh 2-137
- Sh 2-138
- Sh 2-139
- Sh 2-140
- Sh 2-141
- Sh 2-142
- Sh 2-143
- Sh 2-144
- Sh 2-145
- Sh 2-146
- Sh 2-147
- Sh 2-148
- Sh 2-149
- Sh 2-150
- Sh 2-151
- Sh 2-152
- Sh 2-153
- Sh 2-154
- Sh 2-155
- Sh 2-156
- Sh 2-157
- Sh 2-158
- Sh 2-159
- Sh 2-160
- Sh 2-161
- Sh 2-162
- Sh 2-163
- Sh 2-164
- Sh 2-165
- Sh 2-166
- Sh 2-167
- Sh 2-168
- Sh 2-169
- Sh 2-170
- Sh 2-171
- Sh 2-172
- Sh 2-173
- Sh 2-174
- Sh 2-175
- Sh 2-176
- Sh 2-177
- Sh 2-178
- Sh 2-179
- Sh 2-180
- Sh 2-181
- Sh 2-182
- Sh 2-183
- Sh 2-184
- Sh 2-185
- Sh 2-186
- Sh 2-187
- Sh 2-188
- Sh 2-189
- Sh 2-190
- Sh 2-191
- Sh 2-192
- Sh 2-193
- Sh 2-194
- Sh 2-195
- Sh 2-196
- Sh 2-197
- Sh 2-198
- Sh 2-199
- Sh 2-201
- Sh 2-202
- Sh 2-203
- Sh 2-204
- Sh 2-205
- Sh 2-206
- Sh 2-207
- Sh 2-208
- Sh 2-209
- Sh 2-210
- Sh 2-211
- Sh 2-212
- Sh 2-213
- Sh 2-214
- Sh 2-215
- Sh 2-216
- Sh 2-217
- Sh 2-218
- Sh 2-219
- Sh 2-220
- Sh 2-221
- Sh 2-222
- Sh 2-223
- Sh 2-224
- Sh 2-225
- Sh 2-226
- Sh 2-227
- Sh 2-228
- Sh 2-229
- Sh 2-230
- Sh 2-231
- Sh 2-232
- Sh 2-233
- Sh 2-234
- Sh 2-235
- Sh 2-236
- Sh 2-237
- Sh 2-238
- Sh 2-239
- Sh 2-240
- Sh 2-241
- Sh 2-242
- Sh 2-243
- Sh 2-244
- Sh 2-245
- Sh 2-246
- Sh 2-247
- Sh 2-248
- Sh 2-249
- Sh 2-250
- Sh 2-251
- Sh 2-252
- Sh 2-253
- Sh 2-254
- Sh 2-255
- Sh 2-256
- Sh 2-257
- Sh 2-258
- Sh 2-259
- Sh 2-260
- Sh 2-261
- Sh 2-262
- Sh 2-263
- Sh 2-264
- Sh 2-265
- Sh 2-266
- Sh 2-267
- Sh 2-268
- Sh 2-269
- Sh 2-270
- Sh 2-271
- Sh 2-272
- Sh 2-273
- Sh 2-274
- Sh 2-275
- Sh 2-276
- Sh 2-277
- Sh 2-278
- Sh 2-279
- Sh 2-280
- Sh 2-281
- Sh 2-282
- Sh 2-283
- Sh 2-284
- Sh 2-285
- Sh 2-286
- Sh 2-287
- Sh 2-288
- Sh 2-289
- Sh 2-290
- Sh 2-291
- Sh 2-292
- Sh 2-293
- Sh 2-294
- Sh 2-295
- Sh 2-296
- Sh 2-297
- Sh 2-298
- Sh 2-299
- Sh 2-301
- Sh 2-302
- Sh 2-303
- Sh 2-304
- Sh 2-305
- Sh 2-306
- Sh 2-307
- Sh 2-308
- Sh 2-309
- Sh 2-310
- Sh 2-311
- Sh 2-312
- Sh 2-313
- See also: Gum catalog
- Nebula
- RCW Catalogue
- Stewart Sharpless