2MASS J01033563-5515561 A
binary star in the constellation Phoenix
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Summary
2MASS J01033563-5515561 An is a binary star[1]. It draws 141 Wikipedia views per month (binary star category, ranking #54 of 267).[2]
Key Facts
- Instance of: high proper-motion star[3], spectroscopic binary[4], star[5], double star[6], eruptive variable star[7], near-infrared source[8]
- Constellation: Phoenix[9]
- Spectral class: M5.0[10], M[11]
- Part of: NAME Tuc Moving Group[12], Tucana-Horologium association[13]
- Commons category: Delorme 1[14]
- Child astronomical body: Q79040049[15]
- Catalog code: TIC 206502540[16], Gaia DR2 4914632365579875200[17], WDS J01036-5516AB[18], UCAC3 70-2386[19], UCAC4 174-001025[20], 2MASS J01033563-5515561[21], DENIS J010335.6-551556[22], Gaia DR3 4914632365579875200[23]
- Type of variable star: rotating variable star[24]
- Apparent magnitude: 12.91[25], 15.40[26], 14.96[27], 16.99[28], 16.18[29], 14.84[30], 10.162[31], 9.580[32], 9.237[33], 12.09[34], 13.946984[35]
- Mass: 0.4 solar mass[36], 0.19 solar mass[37]
- Parallax: 21.18 milliarcsecond[38]
- Radial velocity: 4.0 kilometre per second[39], 7.3 kilometre per second[40]
- Semi-major axis of an orbit: 84 astronomical unit[41]
- Distance from Earth: 12.86 parsec[42], 47.2 parsec[43]
- Stellar rotational velocity: 35.2 kilometre per second[44], 19.2 kilometre per second[45]
- Right ascension: 15.8985630000 degree[46]
- Declination: -55.2656231000 degree[47]
- Epoch: J2000.0[48]
- Effective temperature: 3922.815 K[49]
- Age estimated by a dating method: 0.03 gigaannum[50]
- Declination component of proper motion: -47.0 milliarcsecond per year[51]
- Right ascension component of proper motion: 100.2 milliarcsecond per year[52]