HD 56405

HD 56405
Location of HD 56405 (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Canis Major
Right ascension 07h 16m 14.5528s[1]
Declination −15° 35′ 08.485″[1]
Apparent magnitude (V) 5.4[2]
Characteristics
Spectral type A1V
B−V color index 0.07[2]
Astrometry
Radial velocity (Rv)10 ± 5 km/s
Proper motion (μ) RA: -45.2[3] mas/yr
Dec.: -15.2[3] mas/yr
Parallax (π)11.79 ± 0.85 mas
Distance237.1[2] ly
(72.7[2] pc)
Details
Mass12.12[1] M☉
Other designations
HIP 35180, HR 2758, TYC 5965-363-1[2]
Database references
SIMBADdata

HD 56405 (also known as HIP 35180) is a main sequence star in the Canis Major constellation. On the eastern side of HD 56405 is the open cluster NGC 2360 also known as Caroline's Cluster.[4] It was classed as a Lambda Boötis star,[5] but more recently this classification has been rejected by astronomers due to the star having an inconsistent UV flux and RV variability and being a high vsin i A2 Va standard star.[6]

References

  1. 1 2 3 "HD 56405 -- Star". SIMBAD. Retrieved 13 November 2017.
  2. 1 2 3 4 5 "The star HR 2758". In the sky. Retrieved 13 November 2017.
  3. 1 2 "HD 56405". Sky Map. Retrieved 19 November 2017.
  4. ↑ Streicher, Magda (December 2005). "Deepsky Delights" (PDF). The Astronomical Society of Southern Africa. p. 234–36. Retrieved 13 November 2017.
  5. ↑ "MK classification for visual binary components". Researchgate. March 1976. Retrieved 19 November 2017.
  6. ↑ "An Evaluation of the Membership Probability of 212 λ Boo Stars. I. A Catalogue" (PDF). Astronomical Society of Australia. July 6, 2015. Retrieved 19 November 2017.


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