Maffei group

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The location of the Maffei group within the neighborhood of the local group
Maffei 1, probably the largest galaxy in the Maffei group
Infrared image from IC 342

The Maffei Group , Maffei-1 Group or IC-342 / Maffei Group or LGG 104 is the closest galaxy group to the Local Group at a distance of around 10 million light years .

Its brightest members are Maffei 1 , a giant elliptical or lenticular galaxy in the constellation Cassiopeia , and IC 342 , a spiral galaxy of the SAB (rs) cd type in the constellation Giraffe . The galaxy Maffei 2 is now also counted among it. The group currently has a total of 24 members. The galaxies Maffei 1 and Maffei 2 lie in the zone covered by the Milky Way and were only discovered in 1968 by the Italian astronomer Paolo Maffei through the analysis of infrared images .

Members

Members of the Maffei group
Surname Type Rec. ( J2000 ) Dec. (J2000) Redshift ( km / s ) apparently Bright. Subgroup
Camelopardalis A Insane 04 h 26 m 16.3 s 2724821+ 72 ° 48 ′ 21 ″ −46 ± 1 14.8 IC 342
Camelopardalis B Insane 04 h 53 m 07.1 s 2670557+ 67 ° 05 ′ 57 ″ 77 16.1 IC 342
Camelopardalis D. in the 5594205 h 59 m 42 s 2732600+ 73 ° 26 ′ 00 ″ +93 17.1 IC 342
Cassiopeia 1 dIrr 02 h 06 m 02.8 s 2685959+ 68 ° 59 ′ 59 ″ 35 16.4 IC 342
Cassiopeia 3 in the 1073001 h 07 m 30 s 2512600+ 51 ° 26 ′ 00 ″ −166 17.1 IC 342
IC 342 SAB (rs) cd 03 h 46 m 48.5 s 2680546+ 68 ° 05 ′ 46 ″ 31 ± 3 9.1 IC 342
KK 35 Insane 03 h 45 m 12.6 s 2675151+ 67 ° 51 ′ 51 ″ 105 ± 1 17.2 IC 342
NGC 1560 SA (s) d 04 h 32 m 49.1 s 2715259+ 71 ° 52 ′ 59 ″ −36 ± 5 12.2 IC 342
NGC 1569 Sbrst 04 h 30 m 49.1 s 2645052.6+ 64 ° 50 ′ 52.6 ″ −104 ± 4 11.2 IC 342
UGC 2773 in the 2320602 h 32 m 06 s 2474800+ 47 ° 48 ′ 00 ″ 83 14.3
UGCA 86 in the 03 h 59 m 50.5 s 2670837+ 67 ° 08 ′ 37 ″ 67 ± 4 13.5 IC 342
UGCA 92 in the 04 h 32 m 04.9 s 2633649+ 63 ° 36 ′ 49.0 ″ −99 ± 5 13.8 IC 342
UGCA 105 in the 05 h 14 m 15.3 s 2623448+ 62 ° 34 ′ 48 ″ 111 ± 5 13.9 IC 342
Mailyan 16 in the 6474806 h 47 m 48 s 2800700+ 80 ° 07 ′ 00 ″ −157 16.4 IC 342
Dwingeloo 1 SB (s) cd 02 h 56 m 51.9 s 2585442+ 58 ° 54 ′ 42 ″ 110 8.3 Maffei 1
Dwingeloo 2 in the 02 h 54 m 08.5 s 2590019+ 59 ° 00 ′ 19 ″ 94 ± 1 20.5 Maffei 1
KKH 6 in the 1345401 h 34 m 54 s 2520600+ 52 ° 06 ′ 00 ″ −141 17.0 Maffei 1
KKH 11 dE 02 h 24 m 34.2 s 2560043+ 56 ° 00 ′ 43 ″ 310 16.2 Maffei 1
KKH 12 Insane 02 h 27 m 26.9 s 2572916+ 57 ° 29 ′ 16 ″ 70 17.8 Maffei 1
Maffei 1 S0 pec 02 h 36 m 35.4 s 2593919+ 59 ° 39 ′ 19 ″ 13 ± 22 11.4 Maffei 1
Maffei 2 SAB (rs) bc 02 h 41 m 55.1 s 2593615+ 59 ° 36 ′ 15 ″ −17 ± 5 16.0 Maffei 1
MB 1 SAB (s) d 02 h 35 m 36.5 s 2592243+ 59 ° 22 ′ 43 ″ 190 ± 1 20.5 Maffei 1
MB 2 dIrr 02 h 36 m 59.8 s 2591414+ 59 ° 14 ′ 14 ″ 18th
MB 3 dSph 02 h 55 m 42.7 s 2585137+ 58 ° 51 ′ 37 ″ 59 ± 1 19.8 Maffei 1

map

Nearest Groups of Galaxies atlasoftheuniverse.gif

See also

Web links

Individual evidence

  1. ^ Buta, Ronald J .; McCall, Marshall L .: The IC 342 / Maffei Group Revealed. In: The Astrophysical Journal Supplement Series , Volume 124, Issue 1, pp. 33-93, 09/1999, bibcode : 1999ApJS..124 ... 33B
  2. ↑ a b Karachentsev, ID: The Local Group and Other Neighboring Galaxy Groups. In: The Astronomical Journal , Volume 129, Issue 1, pp. 178-188, 01/2005. bibcode : 2005AJ .... 129..178K
  3. ↑ a b c d e NASA / IPAC Extragalactic Database . In: Results for various galaxies . Retrieved December 30, 2006.