Magnitude 9.91 Constellation Camelopardalis Apparent magnitude (H) 8.845 ± 0.018 | Apparent magnitude (B) 10.25 ± 0.03 Apparent magnitude (J) 9.013 ± 0.029 Apparent magnitude (K) 8.791 ± 0.019 | |
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Similar XO‑3b, HD 104985, CS Camelopardalis, Beta Camelopardalis | ||
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.
Planetary system
In 2007 the gas giant exoplanet XO-3b was discovered by the XO Telescope using the transit method. This object may be classed as brown dwarf because of its high mass.
References
XO-3 Wikipedia(Text) CC BY-SA