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18 Boötis
Observation data
Epoch J2000      Equinox J2000
Constellation Boötes
Right ascension 14h 19m 16.2803s
Declination +13° 00′ 15.476″
Apparent magnitude (V) 5.4
Characteristics
Spectral type F5IV
U-B color index -0.03
B-V color index 0.38
R-I color index 0.19
Astrometry
Radial velocity (Rv) -3 km/s
Proper motion (μ) RA: 105.91 mas/yr
Dec.: -32.22 mas/yr
Parallax (π) 38.33 ± 0.81 mas
Distance 85 ± 2 ly
(26.1 ± 0.6 pc)
Absolute magnitude (MV) 5.764
Details
Mass 1,7 M
Radius 1,4 R
Luminosity 6 L
Temperature 6,000–7,500 K
Rotation 39 km/s
0,00498246877938 Year
Orbit
Companion CCDM 14192+1300 B
BUP
ENG 51
Semimajor axis (a) 156.4"
Inclination (i) 217°
Other designations
GCRV 8373, IRAS F14168+1314, SAO 100975, AG+13° 1387, JP11 2499, BD+13° 2782, GJ 3841, 2MASS J14191627+1300155, TD1 17398, CCDM J14192+1300, GSC 00915-01442, N30 3247, TYC 915-1442-1, CSI+13 2782 1, HD 125451, PMC 90-93 961, UBV M 20120, 2E 1416.8+1313, HIC 69989, PPM Star Catalogue 130492, UBV 12580, 2E 3242, HIP 69989, RBS 1371, uvby98 100125451, FK5 1372, HR 5365, ROT 2057, YZ 13 5083, GAT 343, IDS 14145+1328, RX J1419.2+1300, GC 19319, IRAS 14168+1314, 1RXS J141916.7+130021.
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

18 Boötis is a star in the constellation Boötes about 85 light years away from Earth. Its apparent magnitude is 5.40 and its absolute magnitude is 3.3.

It is a white subgiant of spectral type F5IV. It has a luminosity four times and a radius 1.6 times solar.

18 Boötis is believed to be a stream star member of the Ursa Major Moving Group.

References

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