HD 135530

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HD 135530
Observation data
Epoch J2000      Equinox J2000
Constellation Boötes
Right ascension 15h 14m 10.3106s
Declination +42° 10′ 17.074″
Apparent magnitude (V) 6.156
Characteristics
Spectral type M2IIIa
U−B color index 1.93
B−V color index 1.66
R−I color index 0.92
Variable type Variable star
NSV 20281
Astrometry
Radial velocity (Rv) -7.1 km/s
Proper motion (μ) RA: 23.74 mas/yr
Dec.: -16.08 mas/yr
Parallax (π) 3.25 ± 0.55 mas
Distance approx. 1,000 ly
(approx. 310 pc)
Absolute magnitude (MV) 7.809
Details
Mass 0.04 M
Radius 0.5 R
Luminosity 0.04 L
Temperature 2,000–3,500 K
Other designations
NSV 20281, BD+42° 2577, HIP 74571, HR 5677, SAO 45445.
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

HD 135530 is a variable star in the constellation Boötes.

References[edit]