NGC 3938: Difference between revisions
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== Supernovae == |
== Supernovae == |
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Two [[supernova]]e have been identified within NGC 3938. [[SN 2005ay]] is a [[Type II Supernova|type II supernova]] that was discovered on 27 March 2005 and had a magnitude of 15.6.<ref>{{cite web|title=Supernova 2005ay in NGC 3938|url=http://www.rochesterastronomy.org/sn2005/sn2005ay.html|work=Rochester Astronomy|accessdate=29 January 2013}}</ref> SN 2017ein is a [[Type Ib and Ic supernovae|type Ic supernova]] that was discovered on 25 May 2017 and peaked at magnitude 14.9.<ref>{{cite web|title=Supernovae 2017ein in NGC 3938|url=http://www.rochesterastronomy.org/sn2017/sn2017ein.html|website=www.rochesterastronomy.org|accessdate=29 June 2017|language=en}} |
Two [[supernova]]e have been identified within NGC 3938. [[SN 2005ay]] is a [[Type II Supernova|type II supernova]] that was discovered on 27 March 2005 and had a magnitude of 15.6.<ref>{{cite web|title=Supernova 2005ay in NGC 3938|url=http://www.rochesterastronomy.org/sn2005/sn2005ay.html|work=Rochester Astronomy|accessdate=29 January 2013}}</ref> SN 2017ein is a [[Type Ib and Ic supernovae|type Ic supernova]] that was discovered on 25 May 2017 and peaked at magnitude 14.9.<ref>{{cite web|title=Supernovae 2017ein in NGC 3938|url=http://www.rochesterastronomy.org/sn2017/sn2017ein.html|website=www.rochesterastronomy.org|accessdate=29 June 2017|language=en}} i also like peacan ice cream.:D |
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== Gallery == |
== Gallery == |
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Revision as of 00:39, 7 December 2018
| NGC 3938 | |
|---|---|
 | |
| Observation data (2000 epoch) | |
| Constellation | Ursa Major[1] |
| Right ascension | 11h 52m 42.9s[1] |
| Declination | +44° 07′ 17″[1] |
| Distance | 43 Million light years |
| Apparent magnitude (V) | 10.9[1] |
| Characteristics | |
| Type | SA(s)c |
| Apparent size (V) | 5′.4 × 4′.9[1] |
NGC 3938 is an unbarred spiral galaxy in the Ursa Major constellation. It was discovered on 6 February 1788 by William Herschel. It is one of the brightest spiral galaxies in the Ursa Major South galaxy group, and is roughly 67,000 light years in diameter.[2] It is approximately 43 million light years away from Earth.[1] NGC 3938 is classified as type Sc under the Hubble sequence, a loosely wound spiral galaxy with a smaller and dimmer bulge.[3] The spiral arms of the galaxy contain many areas of ionized atomic hydrogen gas, more so towards the center.[4]
Supernovae
Two supernovae have been identified within NGC 3938. SN 2005ay is a type II supernova that was discovered on 27 March 2005 and had a magnitude of 15.6.[5] SN 2017ein is a type Ic supernova that was discovered on 25 May 2017 and peaked at magnitude 14.9.Cite error: A <ref> tag is missing the closing </ref> (see the help page).
NGC 3938 Wiki1.jpg|Spiral galaxy NGC 3938, by HST. Location of SN 2005ay remnant is marked.
NGC 3938 SN 2005ay.jpg|NGC 3938 with supernova SN 2005ay
</gallery>
References
- ^ a b c d e f George Normandin (5 May 2005). "Spiral Galaxy NGC 3839". kopernik.org. Retrieved 30 December 2011.
- ^ "The Ursa Major Groups". Atlas of the Universe. Retrieved 30 December 2011.
- ^ van der Kruit, P.C.; Shostak, G.S. (1982). "Studies of Nearly Face-on Spiral Galaxies" (PDF). Astronomy and Astrophysics. EDP Sciences: 351–358. Bibcode:1982A&A...105..351V. Retrieved 25 June 2014.
- ^ Jiménez-Vicente, J.; E. Battaner; M. Rozas; H. Castañeda; et al. (1999). "Fabry-Perot observations of the ionized gas in NGC 3938" (PDF). Astronomy and Astrophysics. EDP Sciences: 417–425. arXiv:astro-ph/9811391. Bibcode:1999A&A...342..417J. Retrieved 25 June 2014.
- ^ "Supernova 2005ay in NGC 3938". Rochester Astronomy. Retrieved 29 January 2013.
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