Gaia DR2 772430527947893632, GJ 1148, HIP 57050, G 122-40, LHS 2443, LTT 13210, Ross 1003, 2MASS J11414471+4245072[10]
Database references
SIMBAD
data
ARICNS
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HIP 57050, or GJ 1148, is a faint star with two orbiting exoplanets in the northern constellation of Ursa Major. Other designations for this star include LHS 2443, G 122-40, and Ross 1003.[10] From a distance of 36 light years based on parallax measurements, it is drifting closer to the Sun with a radial velocity of -9 km/s.[2] This is a faint star with an absolute magnitude of 11.64.[1] At the distance of HIP 57050, the apparent visual magnitude is 11.86,[1] which is much too faint to be seen with the naked eye. HD 164595 has a high proper motion, traversing the celestial sphere at an angular rate of 0.577″ yr−1.[11]
The spectrum of HIP 57050 matches a small M-type main-sequence star, a red dwarf, with a stellar classification of M4.0V.[3] HIP 57050 has a metallicity twice that of the Sun and is among the highest in the immediate solar neighborhood.[7] It has a quiet chromosphere that displays little magnetic activity. A minimal level of amplitude variation from rotation suggests the star may be viewed from nearly pole-on.[8] This star has 36%[6] of the Sun's mass and 40% of the radius of the Sun. It is radiating just 1.5%[7] of the luminosity of the Sun from its photosphere at an effective temperature of 3,236 K.[5]
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HIP57050, or GJ 1148, is a faint star with two orbiting exoplanets in the northern constellation of Ursa Major. Other designations for this star include...
Survey: A Saturn-Mass Planet in the Habitable Zone of the Nearby M4V Star HIP57050". The Astrophysical Journal. 715 (1): 271–276. arXiv:1004.4608. Bibcode:2010ApJ...
Moon- to Titan-mass exomoons for timescales longer than 0.8 Gyr (HIP 12961 b, HIP57050 b, Gliese 876 b and c). For this mass range the exomoons could probably...
Tycho Catalogues". Retrieved 2006-12-26. Kostjuk, N. D. (2002). "HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index". Retrieved 2006-12-26. Roman, N. G. (1987)....
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