gjdonatiello
Winter White Dwarfs
Winter White Dwarfs
From left to right in order of increasing difficulty.
40 Eridani (also known as Omicron2 Eridani, or Keid) is a triple star system less than 16.5 light years away from Earth. It is in the constellation Eridanus. The pair 40 Eridani B/C was discovered on January 31, 1783, by William Herschel. In 1910, it was discovered that although component B was a faint star, it was white in color, in fact it was the first discovered white dwarf.
Sirius A and a faint white dwarf companion of spectral type DA2, called Sirius B. The distance separating Sirius A from its companion varies between 8.1 and 31.5 AU.
Procyon A and a faint white dwarf companion of spectral type DQZ named Procyon B.
AstroBin Picture Of the Day on Dec. 25, 2013 astrob.in/69101/0/
Images are obtained using lucky and speckle imaging techniques.
Winter White Dwarfs
Winter White Dwarfs
From left to right in order of increasing difficulty.
40 Eridani (also known as Omicron2 Eridani, or Keid) is a triple star system less than 16.5 light years away from Earth. It is in the constellation Eridanus. The pair 40 Eridani B/C was discovered on January 31, 1783, by William Herschel. In 1910, it was discovered that although component B was a faint star, it was white in color, in fact it was the first discovered white dwarf.
Sirius A and a faint white dwarf companion of spectral type DA2, called Sirius B. The distance separating Sirius A from its companion varies between 8.1 and 31.5 AU.
Procyon A and a faint white dwarf companion of spectral type DQZ named Procyon B.
AstroBin Picture Of the Day on Dec. 25, 2013 astrob.in/69101/0/
Images are obtained using lucky and speckle imaging techniques.