Rho Serpentis

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Rho Serpentis
Observation data
Epoch J2000      Equinox J2000
Constellation Serpens
Right ascension 15h 51m 15.90985s [1]
Declination 20° 58′ 40.5166″ [1]
Apparent magnitude (V) 4.78 [2]
Characteristics
Spectral type K5III [3]
U−B color index +1.88 [2]
B−V color index +1.54 [2]
Astrometry
Radial velocity (Rv) -61.96[4] km/s
Proper motion (μ) RA: -53.32[1] mas/yr
Dec.: +18.87[1] mas/yr
Parallax (π) 8.70 ± 0.30[1] mas
Distance 370 ± 10 ly
(115 ± 4 pc)
Absolute magnitude (MV) -0.52 [5]
Other designations
38 Serpentis, GC 21311, HIP 77661, HR 5899, HD 141992, SAO 84037 [3]
Database references
SIMBAD data

Rho Serpentis (ρ Ser, ρ Serpentis) is a star in the constellation Serpens.

Rho Serpentis is an orange K-type giant with an apparent magnitude of +4.78.[2] It is approximately 375 light years from Earth.[1]

References[edit]

  1. ^ a b c d e f van Leeuwen, F. (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.  Vizier catalog entry
  2. ^ a b c d Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues 2237: 0. Bibcode:2002yCat.2237....0D. 
  3. ^ a b "Rho Serpentis". SIMBAD Astronomical Database. Retrieved 2015-10-17. 
  4. ^ Famaey, B.; et al. (January 2005), "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters", Astronomy and Astrophysics 430 (1): 165–186, arXiv:astro-ph/0409579, Bibcode:2005A&A...430..165F, doi:10.1051/0004-6361:20041272 
  5. ^ Absolute magnitude calculated as  M = m + 5 (1 + \log_{10}{p})\!\,, where M is the star's absolute magnitude, m is the star's apparent magnitude, and p is the star's measured parallax in arcseconds.