Groombridge 34 [SEP] constellation
Groombridge 34
Groombridge 34 is a binary star system in the northern constellation of Andromeda. It was listed as entry number 34 in "A Catalogue of Circumpolar Stars", published posthumously in 1838 by British astronomer Stephen Groombridge. Based upon parallax measurements taken by the Gaia spacecraft, the system is located about 11.6 light-years from the Sun. This positions the pair among the nearest stars to the Solar System.
Both components are small, dim red dwarf stars that are too faint to be seen with the naked eye
Groombridge 1830
Groombridge 1830 (also known as 1830 Groombridge or Argelander's Star) is a star in the constellation Ursa Major.
Description.
It is a yellow-hued class G8 subdwarf catalogued by British astronomer Stephen Groombridge with the Groombridge Transit Circle between 1806 and the 1830s and published posthumously in his star catalog, "Catalogue of Circumpolar Stars" (1838). Its high proper motion was noted by Friedrich Wilhelm Argelander in 1842.
It is from the Sun as measured by the Hipparcos astrometry satellite, which