DENIS-P J020529.0-115925
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cetus |
| Right ascension | 02h 05m 29.401s |
| Declination | -11° 59' 29.67"' |
| Apparent magnitude (V) | 17.3 |
| Characteristics | |
| Spectral type | L5.5 |
| U−B color index | ? |
| B−V color index | ? |
| Variable type | None |
| Astrometry | |
| Radial velocity (Rv) | 22 km/s |
| Proper motion (μ) | RA: 427 mas/yr Dec.: 52 mas/yr |
| Parallax (π) | 50.6 ± 1.5[1] mas |
| Distance | 64 ± 2 ly (19.8 ± 0.6 pc) |
| Details | |
| Radius | ? R☉ |
| Luminosity | ? L☉ |
| Temperature | 1.800 K |
| Metallicity | ? |
| Rotation | ? |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cetus |
| Right ascension | 02h 05m 29.401s |
| Declination | -11° 59' 29.67"' |
| Apparent magnitude (V) | 18.3 |
| Characteristics | |
| Spectral type | L8 |
| U−B color index | ? |
| B−V color index | ? |
| Variable type | None |
| Astrometry | |
| Radial velocity (Rv) | 22 km/s |
| Proper motion (μ) | RA: 427 mas/yr Dec.: 52 mas/yr |
| Parallax (π) | 50.6 ± 1.5[1] mas |
| Distance | 64 ± 2 ly (19.8 ± 0.6 pc) |
| Binary orbit | |
| Orbit period of B and C: (P) | 8 years |
| Space between A and B: | 10 AU |
| Space between B and C: | 1.9 AU |
| Details | |
| Mass | 34 M☉ |
| Radius | ? R☉ |
| Luminosity | ? L☉ |
| Metallicity | ? |
| Rotation | ? |
| Age | 1 - 10 billion years |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cetus |
| Right ascension | 02h 05m 29.401s |
| Declination | -11° 59' 29.67"' |
| Apparent magnitude (V) | 18.8 |
| Characteristics | |
| Spectral type | T0 |
| U−B color index | ? |
| B−V color index | ? |
| Variable type | None |
| Astrometry | |
| Radial velocity (Rv) | 22 km/s |
| Proper motion (μ) | RA: 427 mas/yr Dec.: 52 mas/yr |
| Parallax (π) | 50.6 ± 1.5[1] mas |
| Distance | 64 ± 2 ly (19.8 ± 0.6 pc) |
| Details | |
| Mass | 33 M☉ |
| Radius | ? R☉ |
| Luminosity | ? L☉ |
| Metallicity | ? |
| Rotation | ? |
| Age | 1 - 10 billion years |
| Other designations | |
2MASS J02052940-1159296, 2MASSW J0205293-115930,
2MASSI J0205293-115930, 2MUCD 10096. | |
DENIS-P J020529.0-115925 is an old triple carbon star system made of brown dwarfs, located in constellation Cetus at approximately 19.8 parsecs or 64.5 light-years from Earth,[1] designated in the DENIS catalog (Deep Near-Infrared Survey), [P=Provisory or provisional designation].
See also
- Deep Near Infrared Survey of the Southern Sky
- DENIS-P J1058.7-1548
- DENIS-P J1228.2-1547
- DENIS-P J082303.1-491201 b
- DENIS-P J101807.5-285931
References
- 1 2 3 4 Dahn, C. C.; Harris, Hugh C.; Vrba, Frederick J.; Guetter, Harry H.; Canzian, Blaise; Henden, Arne A.; Levine, Stephen E.; Luginbuhl, Christian B.; Monet, Alice K. B.; Monet, David G.; Pier, Jeffrey R.; Stone, Ronald C.; Walker, Richard L.; Burgasser, Adam J.; Gizis, John E.; Kirkpatrick, J. Davy; Liebert, James; Reid, I. Neill (2002). "Astrometry and Photometry for Cool Dwarfs and Brown Dwarfs". The Astronomical Journal. 124 (2): 1170–1189. arXiv:astro-ph/0205050
. Bibcode:2002AJ....124.1170D. doi:10.1086/341646.
External links
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