- Nu² Lupi
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Nu² Lupi Observation data
Epoch J2000 Equinox J2000Constellation Lupus Right ascension 15h 21m 48.1499s Declination -48° 19′ 03.460″ Apparent magnitude (V) 5.65 Characteristics Spectral type G4V Astrometry Distance 47.5 ly
(14.56 pc)Absolute magnitude (MV) 4.83[1] Details Age (3.6–5.2) × 109[1] years Other designations Nu² Lupi is a G-type main sequence star approximately 47 light-years away in the constellation Lupus (the Wolf).
Contents
Planetary system
In september 12 2011, 3 new Planets has been found in this system.[2]
The Nu² Lupi system[3] Companion
(in order from star)Mass Semimajor axis
(AU)Orbital period
(days)Eccentricity b 5.27 ± 0.79 M⊕ 0.0933 ± 0.0015 11.577 ± 0.0056 0.18 ± 0.14 c 11.37 ± 0.98 M⊕ 0.1665 ± 0.0028 27.582 ± 0.0225 0.16 ± 0.07 d 9.53 ± 3.49 M⊕ 0.411 ± 0.0073 106.72 ± 1.0284 0.43 ± 0.24 See also
References
- ^ a b Mamajek, Eric E.; Hillenbrand, Lynne A. (November 2008). "Improved Age Estimation for Solar-Type Dwarfs Using Activity-Rotation Diagnostics". The Astrophysical Journal 687 (2): 1264–1293. Bibcode 2008ApJ...687.1264M. doi:10.1086/591785.
- ^ Mayor, M.; et al. (2011). The HARPS search for southern extra-solar planets XXXIV. Occurrence, mass distribution and orbital properties of super-Earths and Neptune-mass planets. arXiv:1109.2497. Bibcode 2011arXiv1109.2497M.
- ^ [1]
External links
- "Nu2 Lupi". SolStation. http://www.solstation.com/stars2/nu2-lupi.htm. Retrieved 16 July 2009.
Star systems within 40–50 light-years from Earth with brightest member's absolute magnitude of +8.5 or brighter.Alpha Ophiuchi «Rasalhague» (46.7 ± 0.6 ly; 1 star)Capella (42.2 ± 0.5 ly; 4 stars)Alpha Cephei «Alderamin» (48.8 ± 0.4 ly; 1 star)Iota Ursae Majoris «Talitha Borealis» (47.7 ± 0.6 ly; 4 stars)Beta Trianguli Australis (40.2 ± 0.3 ly; 2 stars)‡ • Theta Ursae Majoris «Alhaud» (44.0 ± 0.4 ly; 3 stars) • Delta Aquilae «Denebokab» (50.1 ± 0.6 ly; 3 stars)‡36 Ursae Majoris (41.9 ± 0.4 ly; 2 stars) • Upsilon Andromedae (43.9 ± 0.4 ly; 2 stars, 4 planets: planet b • planet c • planet d • planet e) • 10 Tauri (44.8 ± 0.5 ly; 2 stars) • Iota Piscium (45.0 ± 0.5 ly; 1 star) • Alpha Fornacis «Dalim» (46.0 ± 0.4 ly; 2 stars) • Theta Boötis «Asellus Primus» (47.5 ± 0.4 ly; 2 stars) • Psi Capricorni «Yue» (47.9 ± 0.6 ly; 1 star) • Alpha Corvi «Alchiba» (48.2 ± 0.5 ly; 1 star) • Eta Leporis (49.1 ± 0.5 ly; 1 star) • Nu Phoenicis (49.1 ± 0.5 ly; 1 star) • Sigma Boötis «Hemelein Secunda» (50.4 ± 0.6 ly; 2 stars)‡Beta Aquilae «Alshain» (44.7 ± 0.5 ly; 2 stars) • b (31) Aquilae (49.4 ± 0.6 ly; 3 stars)Rho¹ (55) Cancri (40.9 ± 0.4 ly; 2 stars, 5 planets: planet e • planet b • planet c • planet f • planet d) • HR 483 (41.2 ± 0.4 ly; 2 stars) • Lambda Aurigae «Al Hurr» (41.2 ± 0.5 ly; 2 stars) • HR 683 (41.4 ± 0.4 ly; 1 star) • i (44) Boötis (41.6 ± 0.3 ly; 3 stars) • HR 6094 (42.0 ± 0.5 ly; 2 stars, 1 planet: planet b) • HR 6998 (42.4 ± 0.5 ly; 1 star) • 58 Eridani (43.4 ± 0.5 ly; 1 star) • HR 8501 (44.4 ± 0.4 ly; 2 stars) • 18 Scorpii (45.7 ± 0.6 ly; 1 star) • 47 Ursae Majoris (45.9 ± 0.4 ly; 1 star, 3 planets: planet b • planet c • planet d) • 26 Draconis (45.9 ± 0.3 ly; 3 stars) • Pi¹ Ursae Majoris (46.6 ± 0.5 ly; 1 star) • 72 Herculis (46.9 ± 0.4 ly; 1 star) • Nu² Lupi (47.5 ± 0.5 ly; 1 star, 3 planets: planet b • planet c • planet d) • HR 7898 (47.8 ± 0.6 ly; 1 star) • Psi Serpentis (47.9 ± 0.6 ly; 2 stars) • HR 3862 (48.5 ± 0.5 ly; 1 star) • 20 Leonis Minoris «Cor» (48.6 ± 0.6 ly; 1 star) • HD 176051 (48.9 ± 0.4 ly; 2 stars, 1 planet: planet b) • Mu Arae (49.8 ± 0.6 ly; 1 star, 4 planets: planet d • planet e • planet b • planet c)‡ • 51 Pegasi (50.1 ± 0.6 ly; 1 star, 1 planet: planet b «Bellerophon»)‡ • HR 2007 (50.8 ± 0.9 ly; 1 star, 1 planet: planet b)‡HR 4587 (42.1 ± 0.4 ly; 1 star) • Gamma Cephei «Errai» (45.0 ± 0.3 ly; 2 stars, 1 planet: planet b) • Eta Cephei «Al Agemim» (46.8 ± 0.3 ly; 1 star)HR 3384 (39.7 ± 0.3 ly; 1 star)‡ • HR 1925 (39.9 ± 0.4 ly; 1 star)‡ • Gliese 435 (40.8 ± 0.5 ly; 1 star) • HR 3259 (41.0 ± 0.4 ly; 1 star, 3 planets: planet b • planet c • planet d) • Gliese 349 (41.4 ± 0.6 ly; 1 star) • HR 6518 (41.7 ± 0.3 ly; 1 star) • HD 40307 (41.8 ± 0.3 ly; 1 star, 3 planets: planet b • planet c • planet d) • Gliese 428 (42.0 ± 1.0 ly; 2 stars) • Gliese 707 (42.3 ± 0.7 ly; 1 star) • Gliese 204 (42.3 ± 0.5 ly; 1 star) • Gliese 167 (42.7 ± 0.3 ly; 1 star) • Gliese 425 (42.9 ± 1.0 ly; 2 stars) • Gliese 716 (43.1 ± 0.5 ly; 1 star) • Gliese 174 (44.0 ± 0.8 ly; 1 star) • Gliese 656 (44.6 ± 0.6 ly; 1 star) • Gliese 5 (44.7 ± 0.5 ly; 2 stars) • AB Doradus (48.7 ± 0.4 ly; 2 stars)In left column are stellar classes of primary members of star systems. ‡Distance error margin extends out of declared distance interval. Italic are systems possibly located within declared distance interval, but probably not.Bayer Flamsteed - 1 (i)
- 2 (f)
- 3 (ψ¹)
- 4 (ψ²)
- 5 (χ)
Nearby - Gliese 588
Categories:- Bayer objects
- G-type main sequence stars
- Lupus constellation
- Main sequence star stubs
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