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NGC 2266

open cluster

Key facts

Right ascension: 06 43 19.7
Declination: +26 ° 58 ′ 34 ″
Distance: 10,603 ly (3,251.0 pc )
Apparent dimensions v: 5.0 ′
Radius: 16.1 ly
Estimated age: 81.2 Myr
Other designations: NGC 2266, Cr 113, Mel 50, Lund 250
Constellation: Gemini

via Wikipedia infobox

Wikidata facts

Instance of: open cluster
Constellation: Gemini
Distance from Earth: 9800
Image: NGC 2266.jpg

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catalog code: Collinder 113
discoverer or inventor: William Herschel
time of discovery or invention: 1785-12-07
apparent magnitude: 9.5
Commons category: NGC 2266
right ascension: 100.8340
declination: 26.9850
epoch: J2000.0
metallicity: -0.44
right ascension component of proper motion: -2.44
declination component of proper motion: -4.17

Sources (1)

fr.wikipedia.org

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Encyclopedic overview

NGC 2266 is an open cluster of stars in the constellation of Gemini. It was discovered by German-British astronomer William Herschel on 7 December 1785. This is a relatively dim cluster with an integrated visual magnitude of 9.5 and an angular size of 5.0′. The stellar members can be readily resolved with an amateur telescope. NGC 2266 is located at a distance of 10,603 ly (3,251.0 pc) from the Sun. It is located close to the opposite part of the sky from the Galactic Center, or the anti-center.

This is a rich cluster that is well condensed. It is of intermediate age; similar to the ages of the Hyades and Praesepe clusters. However, it has a lower metallicity than either cluster. NGC 2266 has a heliocentric radial velocity of −16±15 km/s. A 2008 study found 12 variable stars in the field of this cluster, although they lie outside the cluster radius. A single candidate blue straggler has been identified.

Excerpted from Wikipedia’s “NGC 2266” article, available under the CC BY-SA 4.0 licence.

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