42 Librae
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Summary
42 Librae is an infrared source[1]. It ranks in the top 1% of infrared source entities by monthly Wikipedia readership (15 views/month).[2]
Key Facts
- Instance of: CN star[3], near-infrared source[4], orange giant[5]
- Constellation: Libra[6]
- Spectral class: K3III[7], K3-IIICN2[8], K4III[9], K0[10]
- Catalog code: IRAS 15373-2339[11], SAO 183686[12], HD 139663[13], 2MASS J15401689-2349048[14], HIP 76742[15], HR 5824[16], GSC 06777-01627[17], GJ 593.1[18], GJ 9526[19], FK5 3239[20], GC 21057[21], GCRV 9042[22], HIC 76742[23], IRC -20291[24]
- Apparent magnitude: 7.80[25], 6.29[26], 4.96[27], 4.00[28], 3.32[29], 2.79[30], 2.17[31], 2.03[32], 4.544677[33]
- Absolute magnitude: -0.37[34]
- Parallax: 8.7152 milliarcsecond[35], 29.9 milliarcsecond[36], 8.53 milliarcsecond[37], 8.55 milliarcsecond[38], 8.2082 milliarcsecond[39]
- Radial velocity: -22.63 kilometre per second[40], -21.8 kilometre per second[41], -21.80 kilometre per second[42], -17.7 kilometre per second[43], -23.5 kilometre per second[44], -18.5 kilometre per second[45], -20.9 kilometre per second[46]
- Metallicity: -0.07[47], -0.12[48]
- Distance from Earth: 114.7421 parsec[49], 121.829 parsec[50]
- Right ascension: 235.0704055109 degree[51]
- Declination: -23.81808364893 degree[52]
- Epoch: J2000.0[53]
- Effective temperature: 4478 K[54], 4393 K[55], 4392 K[56], 4332 K[57], 4303 K[58], 4300 K[59], 4308 K[60]
- Surface gravity: 200 centimetre per square second[61]
- Declination component of proper motion: -17.820 milliarcsecond per year[62], -8.26 milliarcsecond per year[63]
Why It Matters
42 Librae has Wikipedia articles in 5 language editions, a strong signal of global cultural recognition.[64] It is known by 13 alternative names across languages and contexts.[65]