HD 12661 c
extrasolar planet
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Summary
HD 12661 c is an exoplanet[1]. It draws 18 Wikipedia views per month (exoplanet category, ranking #95 of 578).[2]
Key Facts
- Instance of: unconfirmed exoplanet[3], star[4]
- Constellation: Aries[5]
- Parent astronomical body: HD 12661[6]
- Catalog code: HD 12661c[7], TIC 118268680c[8]
- Time of discovery or invention: April 1, 2003[9], 2002[10], April 2003[11]
- Discovery method: Doppler spectroscopy[12]
- Orbital eccentricity: 0.031[13], 0.017[14], 0.025[15]
- M sin i: 1.57 Jupiter mass[16], 1.812 Jupiter mass[17], 1.855 Jupiter mass[18], 1.92 Jupiter mass[19], 1.83 Jupiter mass[20]
- Mass: 1.57 Jupiter mass[21]
- Orbital period: 1708.0 day[22], 1679 day[23], 1696.7 day[24]
- Angular distance: 0.068891 arcsecond[25]
- Parallax: 26.3927 milliarcsecond[26]
- Semi-major axis of an orbit: 2.56 astronomical unit[27], 2.86 astronomical unit[28], 2.9 astronomical unit[29], 2.861 astronomical unit[30], 2.8145 astronomical unit[31]
- Argument of periapsis: 165.0 degree[32], 38 degree[33], 60 degree[34]
- Right ascension: 31.14286813310460 degree[35]
- Declination: 25.41430950228305 degree[36]
- Epoch: J2000.0[37]
- Declination component of proper motion: -173.335 milliarcsecond per year[38]
- Right ascension component of proper motion: -108.181 milliarcsecond per year[39]
- Time of periapsis: 2446153.76 Julian day[40]
Why It Matters
HD 12661 c has Wikipedia articles in 11 language editions, a strong signal of global cultural recognition.[41] It is known by 4 alternative names across languages and contexts.[42]