HD 12661 b
extrasolar planet
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Summary
HD 12661 b is an exoplanet[1]. It draws 36 Wikipedia views per month (exoplanet category, ranking #94 of 578).[2]
Key Facts
- Instance of: unconfirmed exoplanet[3], star[4]
- Constellation: Aries[5]
- Parent astronomical body: HD 12661[6]
- Catalog code: HD 12661b[7], TIC 118268680b[8]
- Time of discovery or invention: April 4, 2001[9], 2000[10], April 2001[11]
- Discovery method: Doppler spectroscopy[12]
- Orbital eccentricity: 0.3768[13], 0.38[14], 0.361[15], 0.23[16], 0.3597[17]
- M sin i: 2.3 Jupiter mass[18], 2.43 Jupiter mass[19], 2.34 Jupiter mass[20], 2.79 Jupiter mass[21], 2.176 Jupiter mass[22], 2.283 Jupiter mass[23]
- Mass: 2.3 Jupiter mass[24]
- Orbital period: 262.709 day[25], 262.70862 day[26], 262.53 day[27], 252.7 day[28], 262.36 day[29], 263.6 day[30]
- Angular distance: 0.022336 arcsecond[31]
- Parallax: 26.3927 milliarcsecond[32]
- Semi-major axis of an orbit: 0.831 astronomical unit[33], 0.84 astronomical unit[34], 0.79 astronomical unit[35], 0.8079 astronomical unit[36], 0.824 astronomical unit[37]
- Argument of periapsis: 296.3 degree[38], 323.1 degree[39], -60.62 degree[40], 296 degree[41]
- Right ascension: 31.14286813310460 degree[42]
- Declination: 25.41430950228305 degree[43]
- Epoch: J2000.0[44]
- Declination component of proper motion: -173.335 milliarcsecond per year[45]
- Right ascension component of proper motion: -108.181 milliarcsecond per year[46]
- Time of periapsis: 2454152.76 Julian day[47]
Why It Matters
HD 12661 b has Wikipedia articles in 12 language editions, a strong signal of global cultural recognition.[48] It is known by 4 alternative names across languages and contexts.[49]