XO-3

XO-3 is a star in the constellation Camelopardalis. The star has a magnitude of 10 and is not visible to the naked eye but is visible through a small telescope. A search for a binary companion star using adaptive optics at the MMT Observatory was negative.

XO-3
Observation data
Epoch J2000      Equinox J2000
Constellation Camelopardalis
Right ascension 04h 21m 52.7048s
Declination +57° 49 01.889
Apparent magnitude (V) 9.80 ± 0.03
Characteristics
Spectral type F5V
Apparent magnitude (B) 10.25 ± 0.03
Apparent magnitude (V) 9.80 ± 0.03
Apparent magnitude (J) 9.013 ± 0.029
Apparent magnitude (H) 8.845 ± 0.018
Apparent magnitude (K) 8.791 ± 0.019
Astrometry
Proper motion (μ) RA: −2.721(27) mas/yr
Dec.: 4.186(23) mas/yr
Parallax (π)4.8687 ± 0.0261 mas
Distance670 ± 4 ly
(205 ± 1 pc)
Details
Mass1.213 ± 0.066 M
Radius1.377 ± 0.083 R
Luminosity2.92+0.59
0.48
 L
Surface gravity (log g)4.244 ± 0.041 cgs
Temperature6429 ± 100 K
Metallicity [Fe/H]–0.177 ± 0.08 dex
Age2.82+0.58
0.82
 Gyr
Other designations
TYC 3727-1064-1, GSC 03727-01064, 2MASS J04215269+5749018
Database references
SIMBADdata
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