NGC 5238

galaxy

Key facts

Constellation: Canes Venatici
Right ascension: 13 34 43.8
Declination: +51 ° 36 ′ 33 ″
Heliocentric radial velocity: 229 km/s
Distance: 4.51 Mpc
Type: Irr
Mass: 1.17 × 10 M ☉
Mass light ratio: 0.6 M ☉ / L ☉
Apparent size v: 64.4"

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Wikidata facts

Constellation: Canes Venatici
Distance from Earth: 5.2
Image: NGC 5238 Hubble WikiSky.jpg

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discoverer or inventor: William Herschel
time of discovery or invention: 1789-00-00
Commons category: NGC 5238
catalog code: LEDA 47853
galaxy morphological type: Im/BCD
apparent magnitude: 14.2
redshift: 0.000804
right ascension: 203.67714525858770
declination: 51.61365735969680
radial velocity: 241
epoch: J2000.0
right ascension component of proper motion: -0.066
declination component of proper motion: -0.125

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Encyclopedic overview

NGC 5238 is an irregular galaxy in the constellation Canes Venatici. Located at a comoving distance of 4.51 Mpc, it is 64.4 arcseconds in diameter. It has sometimes been classified as a blue compact dwarf galaxy. Although some authors have hypothesized it to be a member of the M101 Group of galaxies, it is currently believed to be an isolated galaxy.

At an inclination of 39° with respect to Earth, NGC 5238 has a total mass of 117 million solar masses, with a star formation rate of 0.01 solar masses per year. Of the total mass, HI gas appears to account for 26 million solar masses.

Excerpted from Wikipedia’s “NGC 5238” article, available under the CC BY-SA 4.0 licence.

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