HD 135530

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HD 135530
Observation data
Epoch J2000      Equinox J2000
Constellation Boötes
Right ascension 15h 14m 10.31043s[1]
Declination +42° 10′ 17.0746″[1]
Apparent magnitude (V) 6.1986±0.0018[2]
Spectral type M2IIIa[3]
B−V color index +1.62[4]
Radial velocity (Rv) −4.42±0.21[2] km/s
Proper motion (μ) RA: +23.57±0.28[1] mas/yr
Dec.: −16.05±0.32[1] mas/yr
Parallax (π) 2.71 ± 0.32[1] mas
Distance approx. 1,200 ly
(approx. 370 pc)
Luminosity 1,916[5] L
Temperature 3,768[5] K
Other designations
NSV 20281, BD+42° 2577, HD 135530, HIP 74571, HR 5677, SAO 45445.
Database references

HD 135530 is a suspected variable star in the northern constellation of Boötes.


  1. ^ a b c d e van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, Bibcode:2007A&A...474..653V, arXiv:0708.1752Freely accessible, doi:10.1051/0004-6361:20078357. 
  2. ^ a b Famaey, B.; et al. (2005). "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters". Astronomy and Astrophysics. 430: 165–186. Bibcode:2005A&A...430..165F. arXiv:astro-ph/0409579Freely accessible. doi:10.1051/0004-6361:20041272. 
  3. ^ Hoffleit, D.; Warren Jr, W. H. (1991), Bright Star Catalogue (5th Revised (Preliminary Version) ed.), Astronomical Data Center, NSSDC/ADC, retrieved 2015-08-17. 
  4. ^ Mermilliod, J.-C. (1986), "Compilation of Eggen's UBV data, transformed to UBV (unpublished)", Catalogue of Eggen's UBV data. SIMBAD, Bibcode:1986EgUBV........0M. 
  5. ^ a b McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, Bibcode:2012MNRAS.427..343M, arXiv:1208.2037Freely accessible, doi:10.1111/j.1365-2966.2012.21873.x. 

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