XO-1 (star)
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Star XO-1 / BD + 28 ° 2507 |
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| AladinLite | |||||||
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | Northern crown | ||||||
| Right ascension | 16 h 02 m 12 s | ||||||
| declination | + 28 ° 10 ′ 10 ″ | ||||||
| Apparent brightness | 11.3 mag | ||||||
| Typing | |||||||
| Known exoplanets | 1 | ||||||
| Spectral class | G1 V | ||||||
| Astrometry | |||||||
| distance | 600 ly (200 ± 20) pc |
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| Proper movement | |||||||
| Rec. Share: | −19.7 mas / a | ||||||
| Dec. portion: | +15.0 mas / a | ||||||
| Physical Properties | |||||||
| Dimensions | (1.00 ± 0.03) M ☉ | ||||||
| radius | (1.00 ± 0.08) R ☉ | ||||||
| Metallicity [Fe / H] | 0.015 ± 0.040 | ||||||
| Age | (4.5 ± 2.0) billion a | ||||||
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Other names and catalog entries |
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XO-1 , also known as BD + 28 ° 2507 (and GSC 02041-01657 ), is a yellow dwarf about 600 light years away in the constellation Northern Crown . XO-1 has a mass and a diameter similar to our sun .
Planetary system
In 2006, a team of professional and amateur astronomers discovered a Jupiter-sized exoplanet ( XO-1b ) orbiting XO-1. The amateur team consisted of astronomers from North America and Europe and was led by Peter McCullough of the Space Telescope Science Institute in Baltimore.
The discovered planet was confirmed by observations from the Harlan J. Smith Telescope and the Hobby-Eberly Telescope at the McDonald Observatory of the University of Texas .
Web links
- XO-1 . Extrasolar Planets Encyclopaedia
- Astronomers Catch Planet By Unusual Means . SpaceDaily, May 19, 2006
- A Transiting Planet of a Sun-like Star . arxiv : astro-ph / 0605414
Individual evidence
- ↑ a b c d Center de Données astronomiques de Strasbourg: SIMBAD query for BD + 28 ° 2507. In: SIMBAD. Retrieved June 1, 2008 .