Iota Serpentis (ι Ser / ι Serpentis) is a star system in the constellation Serpens, in its head (Serpens Caput). It is approximately 192 light years from Earth. At the centre of the system is a spectroscopic binary, Iota Serpentis A and B. These are both white A-type main sequence dwarfs and both have apparent magnitudes of +5.3. This binary appears to have an orbital period of 11 years; spectroscopic evidence indicates a third companion of A and B.

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dbpprop:abstract
  • Iota Serpentis (ι Ser / ι Serpentis) is a star system in the constellation Serpens, in its head (Serpens Caput). It is approximately 192 light years from Earth. At the centre of the system is a spectroscopic binary, Iota Serpentis A and B. These are both white A-type main sequence dwarfs and both have apparent magnitudes of +5.3. This binary appears to have an orbital period of 11 years; spectroscopic evidence indicates a third companion of A and B. A and B also have two distant companions, Iota Serpentis C, a 13th magnitude star 143 arcseconds away and Iota Serpentis D, a 12th magnitude star 151 arcseconds distant.
dbpprop:appmagV
  • +4.51
dbpprop:constell
dbpprop:dec
  • +19° 40' 13"
dbpprop:distLy
  • 192 ± 9
dbpprop:distPc
  • 59 ± 3
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dbpprop:name
  • ι Serpentis
dbpprop:names
  • 21 Serpentis, HR 5842,
    HD 140159, SAO 101682,
    HIP 76852, ADS 9744,
    CCDM J15416+1940
dbpprop:ra
  • 15h 41m 33.1s
dbpprop:spectral
  • A1V + A1V
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  • Iota Serpentis (ι Ser / ι Serpentis) is a star system in the constellation Serpens, in its head (Serpens Caput). It is approximately 192 light years from Earth. At the centre of the system is a spectroscopic binary, Iota Serpentis A and B. These are both white A-type main sequence dwarfs and both have apparent magnitudes of +5.3. This binary appears to have an orbital period of 11 years; spectroscopic evidence indicates a third companion of A and B.
rdfs:label
  • Iota Serpentis
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