HD 256

HD 256
Observation data
Epoch J2000      Equinox J2000
Constellation Cetus
Right ascension 00h 07m 18.26851s[1]
Declination −17° 23′ 13.1723″[1]
Apparent magnitude (V) 6.23[2]
Characteristics
Spectral type A2IV/V[3]
Apparent magnitude (B) 6.33[2]
Apparent magnitude (J) 5.858[4]
Apparent magnitude (H) 5.83[4]
Apparent magnitude (K) 5.747[4]
Astrometry
Radial velocity (Rv)−10.20 ± 0.9[5] km/s
Proper motion (μ) RA: −7.51[1] mas/yr
Dec.: 15.88[1] mas/yr
Parallax (π)5.68 ± 0.69[1] mas
Distanceapprox. 570 ly
(approx. 180 pc)
Other designations
BD−18° 6428, GC 103, HD 256, HIP 602, HR 10, PPM 208364, SAO 147090
Database references
SIMBADdata

HD 256 is a young A-type star in the constellation Cetus. Exocomets have been discovered obiting around it.

References

  1. 1 2 3 4 5 van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
  2. 1 2 "HR 10". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2015-03-01.
  3. ↑ Houk, N.; Swift, C. (1999). "Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5". Michigan Spectral Survey. 5. Bibcode:1999MSS...C05....0H.
  4. 1 2 3 Cutri, R. M.; et al. (2003). "2MASS All-Sky Catalog of Point Sources". VizieR On-line Data Catalog. Bibcode:2003yCat.2246....0C.
  5. ↑ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.


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