WISE 0713−2917
Brown dwarf star in the constellation Canis Major
From Wikipedia, the free encyclopedia
WISE J071322.55−291751.9 (designation abbreviated to WISE 0713−2917) is a brown dwarf of spectral class Y0,[2] located in constellation Canis Major at approximately 30 light-years from Earth.[5]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Canis Major[1] |
| Right ascension | 07h 13m 22.55s[2] |
| Declination | −29° 17′ 51.9″[2] |
| Characteristics | |
| Spectral type | Y0[2] |
| Apparent magnitude (J (MKO-NIR filter system)) | 19.64 ± 0.15[2] |
| Apparent magnitude (J (SOAR/OSIRIS)) | 20.06 ± 0.21[2] |
| Apparent magnitude (H (MKO-NIR filter system)) | >19.3[2] |
| Apparent magnitude (H (SOAR/OSIRIS)) | 21.16 ± 0.66[2] |
| Astrometry | |
| Proper motion (μ) | RA: 352.26 ±0.35 mas/yr[3] Dec.: −408.52 ±0.32 mas/yr[3] |
| Parallax (π) | 110.11±0.61 mas[3] |
| Distance | 29.6 ± 0.2 ly (9.08 ± 0.05 pc) |
| Details | |
| Temperature | 464 ± 88[4] K |
| Other designations | |
| WISE J071322.55−291751.9,[2] WISE 0713−2917[2] | |
| Database references | |
| SIMBAD | data |
Discovery
WISE 0713−2917 was discovered in 2012 by J. Davy Kirkpatrick and colleagues from data collected by the Wide-field Infrared Survey Explorer (WISE) in the infrared at a wavelength of 40 cm (16 in), whose mission lasted from December 2009 to February 2011. In 2012 Kirkpatrick et al. published a paper in The Astrophysical Journal, where they presented discovery of seven new found by WISE brown dwarfs of spectral type Y, among which also was WISE 0713−2917.[2]
Distance
Currently the most accurate distance estimate of WISE 0713−2917 is a trigonometric parallax, published in 2014 by Beichman et al.: 0.106 ± 0.013 arcsec, corresponding to a distance of 9.4 ± 1.2 pc (30.7 ± 3.9 ly).[5] An improved parallax was published in 2021, placing WISE 0713−2917 at around 30 light years.[4]
Physical properties
See also
Lists:
The other six discoveries of brown dwarfs, published in Kirkpatrick et al. (2012):[2]
- WISE 0146+4234 (Y0)
- WISE 0350−5658 (Y1)
- WISE 0359−5401 (Y0)
- WISE 0535−7500 (≥Y1)
- WISE 0734−7157 (Y0)
- WISE 2220−3628 (Y0)