NGC 3608

Short description: Galaxy

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SDSS image of NGC 3608

Observation data (J2000 epoch)
Constellation| Leo
Right ascension|  11h 16m 58.967s[1]
Declination| +18° 08′ 54.71″[1]
Redshift| 0.003959[2]
Helio radial velocity| 1185 ± 46 km/s[2]
Distance| 73 Mly (22.3 Mpc)[3]
Group or cluster| Leo II group
Apparent magnitude (V)| 10.76[3]
Apparent magnitude (B)| 11.7[2]
Absolute magnitude (V)| −20.98[3]
Characteristics
Type| E1-2[3]
Other designations
UGC 6299, MCG+03-29-022, PGC 34433[2]

NGC 3608 is an elliptical galaxy located in the constellation Leo. It was discovered by William Herschel on March 14, 1784.[4]

NGC 3608 is part of the Leo II Group of galaxies, including NGC 3605 and NGC 3607. It is approximately 13.0 billion years old. There is diffuse X-ray emission coming from this galaxy and NGC 3607, which suggests that the two may be merging.[3]

NGC 3608 has a significant population of globular clusters. The population distribution is bimodal, with "red" and "blue" populations; the blue globular clusters form a majority. The blue globular clusters have a more extended distribution throughout the galaxy. Overall, the globular clusters are aligned along an axis that is not the same as the rest of the stars, which may be further evidence of galaxy interaction with NGC 3607.[3]

A large structure of neutral hydrogen gas known as an H I region, about 130,000 light-years (40 kpc) across, exists some twelve arcminutes (corresponding to about 230,000 light-years, or 70 kpc) away from NGC 3608. It may be associated with the galaxy.[5]

## References

1. ↑ 1.0 1.1 Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W. et al. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal 131 (2): 1163–1183. doi:10.1086/498708. ISSN 0004-6256. Bibcode: 2006AJ....131.1163S.
2. ↑ 2.0 2.1 2.2 2.3 "NGC 3608". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+3608.
3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 Kartha, Sreeja S.; Forbes, Duncan A.; Alabi, Adebusola B.; Brodie, Jean P.; Romanowsky, Aaron J.; Strader, Jay; Spitler, Lee R.; Jennings, Zachary G. et al. (2016). "The SLUGGS survey: Exploring the globular cluster systems of the Leo II group and their global relationships". Monthly Notices of the Royal Astronomical Society 458 (1): 105–126. doi:10.1093/mnras/stw185. Bibcode: 2016MNRAS.458..105K.
4. ↑ Seligman, Courtney. "New General Catalogue objects: NGC 3600 - 3649". http://cseligman.com/text/atlas/ngc36.htm#3608. Retrieved 2021-08-26.
5. ↑ Oosterloo, Tom; Morganti, Raffaella; Crocker, Alison; Jütte, Eva; Cappellari, Michele; De Zeeuw, Tim; Krajnović, Davor; McDermid, Richard et al. (2010). "Early-type galaxies in different environments: An H i view". Monthly Notices of the Royal Astronomical Society 409 (2): 500–514. doi:10.1111/j.1365-2966.2010.17351.x. Bibcode: 2010MNRAS.409..500O.

## External links

Coordinates:  11h 16m 58.967s, +18° 08′ 54.71″

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