astro.wikisort.org - StarWISE J035000.32−565830.2 (designation abbreviated to WISE 0350−5658) is a brown dwarf of spectral class Y1,[1] located in constellation Reticulum, the nearest known star/brown dwarf in this constellation. Being approximately 17.7 light-years from Earth,[2] it is one of the Sun's nearest neighbors.
Brown dwarf in the constellation Reticulum
WISE J035000.32−565830.2
Observation data Epoch J2000 Equinox J2000 |
Constellation |
Reticulum |
Right ascension |
03h 50m 00.32s[1] |
Declination |
−56° 58′ 30.2″[1] |
Characteristics |
Spectral type |
Y1[1] |
Apparent magnitude (J (MKO-NIR filter system)) |
>22.8[1] |
Apparent magnitude (H (MKO-NIR filter system)) |
>21.5[1] |
Astrometry |
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Proper motion (μ) | RA: −206±7[2] mas/yr Dec.: −578±8[2] mas/yr |
Parallax (π) | 176.4 ± 2.3 mas[3] |
Distance | 18.5 ± 0.2 ly (5.67 ± 0.07 pc) |
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Other designations |
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WISE J035000.32−565830.2, [1]WISE 0350−5658 [1] |
Database references |
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SIMBAD | data |
Location of WISE 0350−5658 in the constellation Reticulum |
Discovery
WISE 0350−5658 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 the discovery of seven new brown dwarfs of spectral type Y that had been found by WISE, among which was WISE 0350−5658.[1]
Distance
WISE 0350−5658 is one of the nearest known brown dwarfs: its trigonometric parallax is 0.184 ± 0.010 arcsecond, corresponding to a direct distance of 5.4 pc (17.7 ly).[2]
See also
The other six discoveries of brown dwarfs, published in Kirkpatrick et al. (2012):[1]
References
- Kirkpatrick, J. Davy; et al. (2012). "Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function". The Astrophysical Journal. 753 (2). 156. arXiv:1205.2122. Bibcode:2012ApJ...753..156K. doi:10.1088/0004-637X/753/2/156. S2CID 119279752.
- Leggett, S. K.; et al. (2017). "The Y-type Brown Dwarfs: Estimates of Mass and Age from New Astrometry, Homogenized Photometry, and Near-infrared Spectroscopy". The Astrophysical Journal. 842 (2). 118. arXiv:1704.03573. Bibcode:2017ApJ...842..118L. doi:10.3847/1538-4357/aa6fb5.
- Kirkpatrick, J. Davy; Gelino, Christopher R.; Faherty, Jacqueline K.; Meisner, Aaron M.; Caselden, Dan; Schneider, Adam C.; Marocco, Federico; Cayago, Alfred J.; Smart, R. L.; Eisenhardt, Peter R.; Kuchner, Marc J. (2021). "The Field Substellar Mass Function Based on the Full-sky 20 pc Census of 525 L, T, and y Dwarfs". The Astrophysical Journal Supplement Series. 253 (1): 7. arXiv:2011.11616. Bibcode:2021ApJS..253....7K. doi:10.3847/1538-4365/abd107. S2CID 227126954.
← Celestial objects within 10–15 light-years → |
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Primary member type | Celestial objects by systems. |
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Main-sequence stars | G-type | |
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K-type | |
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M-type (red dwarfs) |
- Ross 248 (10.3057±0.0014 ly)
- Lacaille 9352 (10.7241±0.0007 ly)
- 2 (3?) planets: b, c, d?
- Ross 128 (11.0074±0.0011 ly)
- planet b
- EZ Aquarii (11.109±0.034 ly)
- 2 red dwarfs: B, C
- Struve 2398 (11.4908±0.0009 ly)
- red dwarf B
- 2 planets: Bb, Bc
- Groombridge 34 (11.6191±0.0008 ly)
- red dwarf B
- 2 planets: Ab, Ac
- DX Cancri (11.6797±0.0027 ly)
- Gliese 1061 (11.9839±0.0014 ly)
- 3 planets: b, c, d
- YZ Ceti (12.1222±0.0015 ly)
- 3 (4?) planets: b, c, d, e?
- Luyten's Star (12.3485±0.0019 ly)
- 4 planets: b, c, d, e
- Teegarden's Star (12.4970±0.0045 ly)
- 2 planets: b, c
- Kapteyn's Star (12.8308±0.0008 ly)
- 2 planets: b, c
- Lacaille 8760 (12.9472±0.0018 ly)
- SCR 1845-6357 (13.0638±0.0070 ly)
- T-type brown dwarf B
- Kruger 60 (13.0724±0.0052 ly)
- red dwarf B
- DEN 1048−3956 (13.1932±0.0027 ly)
- Ross 614 (13.363±0.040 ly)
- red dwarf B
- Wolf 1061 (14.0500±0.0016 ly)
- 3 planets: b, c, d
- Gliese 1 (14.1747±0.0022 ly)
- TZ Arietis (14.5780±0.0046 ly)
- Wolf 424 (14.595±0.031 ly)
- red dwarf B
- Gliese 687 (14.8395±0.0014 ly)
- planet b
- Gliese 674 (14.8492±0.0018 ly)
- planet b
- LHS 292 (14.8706±0.0041 ly)
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Brown dwarfs | T-type |
- UGPS J0722-0540 (13.43±0.13 ly)
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Constellation of Reticulum |
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Stars | |
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Galaxies | |
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На других языках
[de] WISE 0350−5658
WISE J035000.32−565830.2 (Bezeichnung abgekürzt: WISE 0350−5658) ist ein Brauner Zwerg der Spektralklasse Y1[1] im Sternbild Netz. Mit einer Entfernung von etwa 18 Lichtjahren gehört er zu den näheren Nachbarn der Sonne.
- [en] WISE 0350−5658
[ru] WISE 0350-5658
WISE 0350-5658 (полн. WISE J035000.32-565830.2) — один из ближайших к Солнцу коричневых карликов. Находится в созвездии Сетки на расстоянии около 17,7 светового года от Солнца (первое определение расстояния дало значение 12,2 св. года, но оно оказалось имеющим большую погрешность; по более поздним определениям, тригонометрический параллакс объекта равен (0,184 ± 0,010) угловой секунды, что соответствует расстоянию 5,44 парсека, или (17,7 ± 1,0) св. года)[5].
WISE 0350-5658 был открыт в 2012 году Дж. Дэйви Киркпатриком на основании данных, полученных при наблюдениях на инфракрасном телескопе WISE[5].
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