2MASS J17111353 + 2326333
| 2MASS J17111353 + 2326333 | |
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| 2MASS image in J-band , J17111353 + 2326333 is framed in red | |
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Constellation | Hercules |
| Right ascension | 17 h 11 m 13.5 s |
| declination | + 23 ° 26 ′ 33 ″ |
| Brightness (J-band) | 14.5 mag |
| Spectral class | approx L0 |
| Astrometry | |
| Proper movement : | |
| in right ascension | (−53 ± 11) mas / a |
| in declination | (−36 ± 16) mas / a |
| Catalog entries | |
| 2MASS J17111353 + 2326333 • 2MUCD 11684 • SDSS J171113.51 + 232633.2 | |
2MASS J17111353 + 2326333 is an L-dwarf in the constellation Hercules .
The spectral class is roughly L0, but could also deviate from it by one or two subtypes. Its own movement is 0.064 arc seconds / year at a position angle of around 240 °. The object was first discovered by Kelle L. Cruz et al. examined a selection of objects from the 2MASS catalog in more detail in a study published in 2007. From the roughly determined spectral class and the corresponding absolute brightness, they estimated that the distance is in the order of about 40 parsecs.
swell
- Cruz et al .: Meeting the cool neighbors. IX. The luminosity function of M7-L8 ultra-cool dwarfs in the field. In: The Astronomical Journal, Vol. 133, Issue 2, pp. 439-467 (2007), bibcode : 2007AJ .... 133..439C
- ↑ Jameson et al .: Proper motions of field L and T dwarfs ; in: Monthly Notices of the Royal Astronomical Society, Vol. 384, Issue 4, pp. 1399-1413 (2008), bibcode : 2008MNRAS.384.1399J