SAO 206462

SAO 206462
Observation data
Epoch J2000      Equinox J2000
Constellation Lupus
Right ascension 15h 15m 48.4460s[1]
Declination −37° 09′ 16.024″[1]
Apparent magnitude (V) 8.708[2]
Characteristics
Spectral type F8V[2]
Astrometry
Proper motion (μ) RA: −19.210[1] mas/yr
Dec.: −23.268[1] mas/yr
Parallax (π)7.4074 ± 0.0159 mas[1]
Distance440.3 ± 0.9 ly
(135.0 ± 0.3 pc)
Details
Mass1.5[1] M☉
Radius2.1[1] R☉
Luminosity6.4[1] L☉
Surface gravity (log g)3.80[1] cgs
Temperature6,313[1] K
Age10.5[3] Myr
Other designations
HD 135344B, SAO 206462, CPD−36°6759, TYC 7324-1676-1, 2MASS J15154844-3709160
Database references
SIMBADdata

SAO 206462 is a young binary star, surrounded by a circumstellar disc of gas and clearly defined spiral arms. It is situated about 440 light-years away from Earth in the constellation Lupus.[4] The presence of these spiral arms seems to be related to the existence of planets inside the disk of gas surrounding the star. The disk's diameter is about twice the size of the orbit of Pluto.[5]

  1. ^ a b c d e f g h i j Cite error: The named reference dr3 was invoked but never defined (see the help page).
  2. ^ a b "SAO 206462". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 26 December 2016.
  3. ^ Cite error: The named reference guzman2021 was invoked but never defined (see the help page).
  4. ^ http://informe21.com/ciencia-tecnologia/nasa-capta-fotografia-sao-206462-primera-estrella-forma-espiral La NASA capta una fotografía de SAO 206462, la primera estrella con forma espiral] Archived 2016-03-04 at the Wayback Machine. Informe21.com, 3 November 2011
  5. ^ https://science.nasa.gov/science-news/science-at-nasa/2011/31oct_spiralarms/ 31 October 2011. Nasa Science.