Mice Galaxies

NGC 4676A / 4676B

The Mice Galaxies, NGC 4676A (right) / NGC 4676B (left)

Observation data (J2000 epoch)
Constellation| Coma Berenices
Right ascension|  12h 46m 10.08s[1]
Declination| +30° 43′ 52.3″[1]
Redshift| 0.022049[2][1]
Helio radial velocity| 6,610 km/s[1]
Galactocentric velocity| 6,626±1 km/s[3][1]
Distance| 345.1 ± 24.14 Mly (105.8 ± 7.4 Mpc)h−10.6774
(Comoving)[1]
326 Mly (99.95 Mpc)h−10.6774
(Light-travel)
Group or cluster| Coma Cluster[4]
Apparent magnitude (V)| 14.1[1]
Characteristics
Type| Mult[1]
Size| 352,120 ly × 190,150 ly
(107.96 kpc × 58.30 kpc)
(diameter; "total" magnitude)[1][lower-alpha 1]
Notable features| Interacting galaxies
Other designations
Mice Galaxies,[1] IC 819 / 820,[1] UGC 7938 / 7939,[1] PGC 43062 / 43065,[1] Arp 242[1]

NGC 4676, or the Mice Galaxies, are two spiral galaxies in the constellation Coma Berenices. About 105.8 megaparsecs (345 million light-years) distant,[2][1] they have begun the process of colliding and merging. Their "mice" name refers to the long tails produced by tidal action—the relative difference between gravitational pulls on the near and far parts of each galaxy—known here as a galactic tide. It is a possibility that both galaxies, which are members of the Coma Cluster,[4] have experienced a collision, and will continue colliding until they coalesce.

The colors of the galaxies are peculiar. In NGC 4676A a core with some dark markings is surrounded by a bluish white remnant of spiral arms.[citation needed] The tail is unusual, starting out blue and terminating in a more yellowish color, despite the fact that the beginning of each arm in virtually every spiral galaxy starts yellow and terminates in a bluish color.[citation needed][clarification needed] NGC 4676B has a yellowish core and two arcs; arm remnants underneath are bluish as well.[citation needed]

The galaxies were photographed in 2002 by the Hubble Space Telescope.[5] In the background of the Mice Galaxies, there are over 3000 galaxies, at distances up to 13 billion light-years.[citation needed]

## Contents

* 1 See also
* 2 Notes
* 3 References
* 4 Further readings
* 5 External links

## See also

* Antennae Galaxies
* NGC 7318
* List of galaxies

## Notes

1. ↑ The quoted diameter in this infobox was based on NED's provided scale "Virgo \+ GA \+ Shapley" of 513 parsec/arcsec multiplied with given angular diameters.

## References

1. ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 "Detailed Information for Object NGC 4676". NASA/IPAC Extragalactic Database. https://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC 4676&extend=no&hconst=67.74&omegam=0.3089&omegav=0.6911&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES.
2. ↑ 2.0 2.1 Cortijo-Ferrero, C.; González Delgado, R. M.; Pérez, E.; Cid Fernandes, R.; García-Benito, R.; Di Matteo, P.; Sánchez, S. F.; De Amorim, A. L. et al. (2017). "The spatially resolved star formation history of mergers. A comparative study of the LIRGs IC 1623, NGC 6090, NGC 2623, and Mice". Astronomy and Astrophysics 607. doi:10.1051/0004-6361/201731217. Bibcode: 2017A&A...607A..70C.
3. ↑ de Vaucouleurs, Gerard; de Vaucouleurs, Antoinette; Corwin Jr., Herold G.; Buta, Ronald J.; Paturel, Georges; Fouque, Pascal (1991). Third Reference Catalogue of Bright Galaxies. New York, NY (USA): Springer. ISBN 0-387-97552-7. Bibcode: 1991rc3..book.....D.
4. ↑ 4.0 4.1 Burbidge, E. M.; Burbidge, G. R. (March 1961). "NGC 4676, a Peculiar System in the Coma Cluster of Galaxies." (in en). The Astrophysical Journal 133: 726. doi:10.1086/147076. ISSN 0004-637X. Bibcode: 1961ApJ...133..726B.
5. ↑ "Hubble's New Camera Delivers Breathtaking Views of the Universe". HubbleSite. 2002-04-30. https://hubblesite.org/contents/news-releases/2002/news-2002-11.

## Further readings

* Chien, Li-Hsin; Barnes, Joshua E.; Kewley, Lisa J.; Chambers, Kenneth, C. (May 2007). "Multiobject Spectroscopy of Young Star Clusters in NGC 4676". The Astrophysical Journal 660 (2): L105–L108. doi:10.1086/518215. Bibcode: 2007ApJ...660L.105C.

## External links

* NASA Astronomy Picture of the Day: When Mice Collide (12 June 2004)
* The Mice Galaxies

Coordinates:  12h 46m 10.1s, +30° 43′ 55″

* v
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* e

New General Catalogue 4500 to 4999

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* 4853
* 4854
* 4855
* 4856
* 4857
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* 4859
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* 4861
* 4862
* 4863
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* 4865
* 4866
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* 4870
* 4871
* 4872
* 4873
* 4874
* 4875
* 4876
* 4877
* 4878
* 4879
* 4880
* 4881
* 4882
* 4883
* 4884
* 4885
* 4886
* 4887
* 4888
* 4889
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* 4891
* 4892
* 4893
* 4894
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* 4896
* 4897
* 4898
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* 4981
* 4982
* 4983
* 4984
* 4985
* 4986
* 4987
* 4988
* 4989
* 4990
* 4991
* 4992
* 4993
* 4994
* 4995
* 4996
* 4997
* 4998
* 4999

* Astronomical catalog
* List of NGC objects

* v
* t
* e

List of notable Seyfert galaxies

Seyfert 1|

* Arakelian 120
* Arakelian 564
* Arp 102B
* 3C 59
* ESO 141-055
* ESO 198-G24
* ESO 323-G077
* ESO 362-18
* Fairall 9
* Fairall 51
* H0557-385
* 1H 0419-577
* 1H 1707-495
* IC 3599
* IC 4329A
* IRAS 07598+6508
* IRAS 13224-3809
* IRAS 13349+1428
* Markarian 6
* Markarian 50
* Markarian 79
* Markarian 110
* Markarian 279
* Markarian 315
* Markarian 334
* Markarian 335
* Markarian 359
* Markarian 376
* Markarian 423
* Markarian 478
* Markarian 507
* Markarian 509
* Markarian 609
* Markarian 618
* Markarian 704
* Markarian 705
* Markarian 817
* Markarian 841
* Markarian 896
* Markarian 993
* Markarian 1018
* Markarian 1044
* Markarian 1239
* MCG -2-58-22
* MCG-6-30-15
* MGC +8-11-11
* Messier 81
* PG 1211+143
* PG 1244+026
* PG 1402+261
* PG 1404+226
* PKS 0558-504
* PMN J0948+0022
* RE J0134+396
* SBS 0846+513
* Ton S180
* I Zw 1
* III Zw 2
* III Zw 77

Seyfert 2|

* Circinus Galaxy
* ESO 103-G35
* ESO 428-G14
* IC 2560
* IC 3639
* IRAS 05189-2524
* IRAS 13197-1627
* IRAS 18325-5926
* IRAS 19014+4109
* IRAS F01475-0740
* Markarian 3
* Markarian 34
* Markarian 78
* Markarian 176
* Markarian 266 SW
* Markarian 273
* Markarian 463
* Markarian 477
* Markarian 573
* Markarian 1066
* Markarian 1210
* MCG-5-23-16
* Messier 77
* Messier 88
* Messier 106
* NGC 454E
* NGC 2788A
* NGC 4676B
* NGC 4922N
* Whirlpool Galaxy

* v
* t
* e

Coma Berenices constellation

Stars
(list)|

| Bayer|

* α (Diadem)
* β
* γ

|

Flamsteed|

* 1
* 2
* 3
* 4
* 5
* 6
* 7
* 8
* 9
* 10
* 11
* 12
* 13
* 14
* 16
* 17
* 18
* 20
* 21
* 22
* 23
* 24
* 25
* 26
* 27
* 28
* 29
* 30
* 31
* 32
* 33
* 35
* 36
* 37
* 38
* 39
* 41

Variable|

* U
* RW
* RZ
* SS
* ST
* UX
* AL
* CC
* EK
* FK
* FM
* FS (40)
* GM
* GO
* GP
* HH
* IL
* IN
* KR
* LM
* LW

HR|

* 4633
* 4642
* 4668
* 4673
* 4676
* 4680
* 4693
* 4694
* 4698
* 4705
* 4719
* 4725
* 4793
* 4812
* 4873
* 4886
* 4926
* 4956
* 4962
* 4984
* 4992
* 5007
* 5010
* 5057
* 5102

HD|

* 107146
* 107415
* 108863
* 108874
* 112060
* 112127
* 114762
* 115404
* 116029

Other|

* BD +25 2511
* Feige 66
* GD 153
* HZ 21
* HZ 43
* PSR B1237+25
* RBS 1223
* WISE 1217+1626

Star
clusters|

| Open|

* Coma Star Cluster

|

Globular|

* Messier 53
* NGC 4147
* NGC 5053

Nebulae|

| Planetary|

* H 4-1
* LoTr 5

|

Galaxies|

| Messier|

* 64 (Black Eye Galaxy)
* 85
* 88
* 91
* 98
* 99
* 100

|

NGC|

* 4015
* 4016
* 4017
* 4018
* 4021
* 4022
* 4023
* 4028
* 4032
* 4037
* 4040
* 4042
* 4048
* 4049
* 4053
* 4056
* 4060
* 4061
* 4064
* 4065
* 4066
* 4069
* 4070
* 4072
* 4074
* 4076
* 4080
* 4084
* 4086
* 4089
* 4090
* 4091
* 4092
* 4093
* 4095
* 4098
* 4101
* 4104
* 4110
* 4122
* 4126
* 4131
* 4132
* 4134
* 4136
* 4146
* 4150
* 4152
* 4155
* 4158
* 4162
* 4166
* 4169
* 4173
* 4174
* 4175
* 4185
* 4186
* 4189
* 4192A
* 4196
* 4203
* 4204
* 4208
* 4211
* 4211B
* 4212
* 4213
* 4222
* 4237
* 4239
* 4245
* 4251
* 4253
* 4262
* 4272
* 4274
* 4275
* 4278
* 4283
* 4286
* 4293
* 4295
* 4298
* 4302
* 4308
* 4310
* 4312
* 4314
* 4323
* 4328
* 4336
* 4340
* 4344
* 4350
* 4359
* 4375
* 4377
* 4379
* 4383
* 4393
* 4394
* 4396
* 4405
* 4408
* 4414
* 4419
* 4421
* 4446
* 4447
* 4448
* 4450
* 4455
* 4459
* 4468
* 4473
* 4474
* 4475
* 4477
* 4479
* 4489
* 4494
* 4495
* 4498
* 4502
* 4506
* 4514
* 4515
* 4516
* 4523
* 4525
* 4529
* 4539
* 4540
* 4555
* 4556
* 4558
* 4559
* 4561
* 4562
* 4563
* 4565
* 4571
* 4585
* 4595
* 4611
* 4613
* 4614
* 4615
* 4633
* 4634
* 4635
* 4651
* 4659
* 4670
* 4673
* 4676 (Mice Galaxies)
* 4685
* 4689
* 4692
* 4710
* 4712
* 4715
* 4721
* 4725
* 4728
* 4728B
* 4728C
* 4735
* 4738
* 4745
* 4745B
* 4747
* 4752
* 4758
* 4787
* 4788
* 4789
* 4789A
* 4793
* 4798
* 4807
* 4807A
* 4816
* 4817
* 4819
* 4821
* 4827
* 4828
* 4839
* 4840
* 4841
* 4842
* 4848
* 4849
* 4850
* 4851
* 4853
* 4854
* 4858
* 4859
* 4860
* 4864
* 4865
* 4867
* 4869
* 4871
* 4872
* 4873
* 4874
* 4875
* 4876
* 4881
* 4882
* 4883
* 4889
* 4892
* 4894
* 4895
* 4895A
* 4896
* 4898
* 4906
* 4907
* 4908
* 4911
* 4911A
* 4919
* 4921
* 4922
* 4923
* 4926
* 4926A
* 4926B
* 4927
* 4929
* 4931
* 4934
* 4935
* 4943
* 4944
* 4949
* 4952
* 4957
* 4961
* 4966
* 4971
* 4978
* 4979
* 4983
* 5000
* 5004A
* 5004C
* 5012
* 5012A
* 5016
* 5032
* 5032B
* 5041
* 5052
* 5056
* 5057
* 5065
* 5081
* 5089
* 5092
* 5116
* 5151
* 5158
* 5172
* 5180
* 5190
* 5217

Other|

* B2 1215+30
* B2 1308+326
* 3C 275.1
* 3C 287
* 4C +21.35
* Coma A
* Coma Berenices
* DDO 154
* 1ES 1218+304
* GQ Com
* IC 755 (NGC 4019)
* IC 3599
* IC 4051
* IOK-1
* LEDA 83677
* Malin 1
* ON 231 (W Com)
* PG 1211+143
* PG 1247+268
* PGC 44691
* Ton 153
* Ton 1530
* Ton 1542
* UGC 7321

Galaxy
clusters|

* Coma Cluster
* M94 Group
* NGC 4631 Group

Other|

* GRB 000418
* GRB 050509B
* GRB 080607
* GRB 090323
* GRB 090424
* iPTF14atg
* SN 1979C
* SN 1984A
* SN 1987K
* SN 2005ap
* SN 2006X
* VIRGOHI21
* XRF 050416A

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