NGC 2770

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title: "NGC 2770" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["barred-spiral-galaxies", "ngc-objects", "lynx-(constellation)", "principal-galaxies-catalogue-objects", "mcg-objects", "ugc-objects", "iras-catalogue-objects", "astronomical-objects-discovered-in-1785", "discoveries-by-william-herschel"] description: "Spiral galaxy in the constellation Lynx" topic_path: "science/astronomy" source: "https://en.wikipedia.org/wiki/NGC_2770" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Spiral galaxy in the constellation Lynx ::

::data[format=table title="Infobox Galaxy"]

Field	Value
image	Imposter or the Real Deal? (49361318593).jpg
caption	NGC 2770 imaged by the Hubble Space Telescope in 2020
name	NGC 2770
epoch	J2000
constellation name	Lynx
ra
dec
dist_ly	23.67 Mpc
27 Mpc
z
type	SBc
appmag_v	12.0
size_v	1.967 × 0.511 (NIR)
notes	Four supernovae
names
::

| image = Imposter or the Real Deal? (49361318593).jpg | caption = NGC 2770 imaged by the Hubble Space Telescope in 2020 | name = NGC 2770 | epoch = J2000 | constellation name = Lynx | ra = | dec = | dist_ly = 23.67 Mpc 27 Mpc | z = | type = SBc | mass = | appmag_v = 12.0 | absmag_v = | size_v = 1.967 × 0.511 (NIR) | notes = Four supernovae | names =

NGC 2770 is a spiral galaxy in the northern constellation of Lynx, near the northern constellation border with Cancer. It was discovered by German-born astronomer William Herschel on December 7, 1785. J. L. E. Dreyer described it as, "faint, large, much extended 150°, mottled but not resolved, 2 stars to north". NGC 2770 was the target for the first binocular image produced by the Large Binocular Telescope.

The morphological classification of SBc

Supernovae

::figure[src="https://upload.wikimedia.org/wikipedia/commons/d/dc/Sn2008hdani.gif" caption="The Type Ib supernova Supernova 2008D in galaxy NGC 2770, shown in X-ray (left) and visible light (right)"] ::

Four supernovae have been observed in NGC 2770:

• SN 1999eh (Type Ib, mag. 17.5) was discovered by Mark Armstrong on 12 October 1999.
• SN 2007uy (Type Ib, mag. 17.2) was discovered by Yoji Hirose on 31 December 2007.
• SN 2008D (Type Ib, mag. 17.5) was discovered by NASA's Swift X-ray telescope on 9 January 2008, while observing SN 2007uy. It was the first supernova detected by the X-rays released very early on in its formation, rather than by the optical light emitted during the later stages, which allowed the first moments of the outburst to be observed. It is possible that NGC 2770's interactions with a suspected companion galaxy may have created the massive stars causing this activity.
• SN 2015bh was discovered by the Catalina Real-time Transient Survey and Stan Howerton on 7 February 2015, and was either a Type II supernova or the hyper-eruption of a luminous blue variable.

References

References

1. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal.
2. (2015). "A Catalog of Visually Classified Galaxies in the Local (z ~ 0.01) Universe". The Astrophysical Journal Supplement Series.
3. (May 22, 2008). "An extremely luminous X-ray outburst at the birth of a supernova". Nature.
4. (November 2016). "NIBLES: an H I census of stellar mass selected SDSS galaxies. I. The Nançay H I survey". Astronomy & Astrophysics.
5. "NASA/IPAC Extragalactic Database". Results for NGC 2770.
6. (March 2017). "SN 2015bh: NGC 2770's 4th supernova or a luminous blue variable on its way to a Wolf-Rayet star?". Astronomy & Astrophysics.
7. "NGC 2770".
8. Seligman, Courtney. "NGC Objects: NGC 2600 - 2649". Celestial Atlas.
9. "LBT Press Release - First Binocular Light".
10. (June 2009). "NGC 2770: A Supernova Ib Factory?". The Astrophysical Journal.
11. (1999). "Supernova 1999eh in NGC 2770". International Astronomical Union Circular.
12. "SN 1999eh". [[International Astronomical Union.
13. (2008). "Supernova 2007uy in NGC 2770". International Astronomical Union Circular.
14. "SN 2007uy". [[International Astronomical Union.
15. (2008). "A Giant X-ray Flare in NGC 2770". The Astronomer's Telegram.
16. (2008). "Supernova 2008D in NGC 2770". Central Bureau Electronic Telegrams.
17. "SN 2008D". [[International Astronomical Union.
18. "Catching the Light of a Baby Supernova".
19. Bishop, David. "Bright Supernovae - 2015: SN 2015bh".
20. "SN 2015bh". [[International Astronomical Union.

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::