HD 130144

HD 130144

Observation data Epoch J2000      Equinox J2000
Constellation	Boötes
Right ascension	14h 46m 05.9459s
Declination	+15° 07′ 54.436″
Apparent magnitude (V)	5.88
Characteristics
Spectral type	M5IIIab
U−B color index	1.31
B−V color index	1.57
Variable type	Semi-regular pulsating Star variable star identification 6796
Astrometry
Radial velocity (Rv)	-22.3 km/s
Proper motion (μ)	RA: -85.07 mas/yr Dec.: 19.27 mas/yr
Parallax (π)	3.59 ± 0.86 mas
Distance	approx. 900 ly (approx. 280 pc)
Absolute magnitude (MV)	7.21
Details
Mass	0.4 M☉
Radius	0.5 R☉
Luminosity	0.04 L☉
Temperature	2,000–3,500 K
Other designations
EK Boötis, BD+15° 2758, FK5 3168, HIP 72208, HR 5512, SAO 101200.
Database references
SIMBAD	data
Data sources:
Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.)

HD 130144 or EK Boötis is a semiregular variable star.

References

• HR 5512
• Image HD 130144