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Epoch J2000 Equinox J2000
|Right ascension||16h 30m 18.1s|
|Declination||–12° 39′ 45″|
|Apparent magnitude (V)||10.10|
|Spectral type||M3 V|
|U−B color index||1.17|
|B−V color index||1.59|
|Radial velocity (Rv)||–21.0 km/s|
|Proper motion (μ)||RA: –93.61 mas/yr
Dec.: –1184.90 mas/yr
|Parallax (π)||236.01 ± 1.67 mas|
|Distance||13.82 ± 0.10 ly
(4.24 ± 0.03 pc)
|Absolute magnitude (MV)||11.96|
|Temperature||3,380 ± 20 K|
|Metallicity [Fe/H]||–0.02 ± 0.17 dex|
Wolf 1061 (V2306 Ophiuchi) is a red dwarf star. It is located relatively near the Sun, at a distance of about 13.8 light years, in the constellation Ophiuchus. It has a relatively high proper motion and has not been found to have any unusual spectroscopic features.
In March 2014, two planet candidates were proposed to orbit this star. The report was based on the analysis of ancillary data obtained with the Ultraviolet and Visual Echelle Spectrograph (UVES) and High Accuracy Radial velocity Planet Searcher (HARPS) spectrographs, both from the European Southern Observatory. Despite being rather massive, one of the candidates GJ 682 c is in the circumstellar habitable zone of the star, meaning that, if rocky, it can support liquid water on its surface.
(in order from star)
|GJ 682 b||>4.4 M⊕||0.080||17.47||<0.27||?°||—|
|GJ 682 c||>8.7 M⊕||0.176||57.32||<0.29||?°||—|
- Rojas-Ayala, Bárbara et al. (April 2012). "Metallicity and Temperature Indicators in M Dwarf K-band Spectra: Testing New and Updated Calibrations with Observations of 133 Solar Neighborhood M Dwarfs". The Astrophysical Journal 748 (2): 93. arXiv:1112.4567. Bibcode:2012ApJ...748...93R. doi:10.1088/0004-637X/748/2/93.
- Tuomi, Mikko et al. "Bayesian search for low-mass planets around nearby M dwarfs – Estimates for occurrence rate based on global detectability statistics". Monthly Notices of the Royal Astronomical Society. in press. arXiv:1403.0430. Bibcode:2014MNRAS.441.1545T. doi:10.1093/mnras/stu358.
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