WISE 0535-7500

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Coordinates: 05h 35m 16.8s, −75° 00′ 24.9″

WISE J053516.80-750024.9
Observation data
Epoch J2000[ 1]      Equinox J2000[ 1]
Constellation Mensa
Right ascension 05h 35m 16.8s[ 1]
Declination −75° 00′ 24.9″[ 1]
Characteristics
Spectral type≥Y1[ 1]
Apparent magnitude (J (MKO-NIR filter system))>21.1[ 1]
Apparent magnitude (H (MKO-NIR filter system))>21.6[ 1]
Astrometry
Proper motion (μ) RA: -310 ± 128[ 1] mas/yr
Dec.: 159 ± 92[ 1] mas/yr
Parallax (π)250 ± 79[ 1] mas
Distance68.5+42.4
−35.9[ 1] ly
(21+13
−11[ 1] pc)
Other designations
WISE J053516.80-750024.9,[ 1]
WISE 0535-7500[ 1]

WISE J053516.80-750024.9 (designation abbreviated to WISE 0535-7500) is a brown dwarf of spectral class ≥Y1,[ 1] located in constellation Mensa. It is estimated to be 69 light-years from Earth.[ 1]

Discovery

WISE 0535-7500 was discovered in 2012 by J. Davy Kirkpatrick et al. from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satellite — NASA infrared-wavelength 40 cm (16 in) space telescope, which 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 found by WISE brown dwarfs of spectral type Y, among which also was WISE 0535-7500.[ 1]

Distance

Trigonometric parallax of WISE 0535-7500, published in 2013 by Marsh et al., is 0.250 ± 0.079 arcsecond, corresponding to a distance 21+13
−11 pc (68.5+42.4
−35.9 ly).[ 1][note 1]

WISE 0535-7500 distance estimates

Source Parallax, mas Distance, pc Distance, ly Ref.
Marsh et al. (2013)
(according Kirkpatrick et al. (2012)) 		170 ± 44 5.9+2.1
−1.2 		19.2+6.7
−3.9 		[ 1]
Marsh et al. (2013) 250 ± 79 21+13
−11[note 1] 		68.5+42.4
−35.9 		[ 1]

Non-trigonometric distance estimates are marked in italic. The best estimate is marked in bold.

See also

The other six discoveries of brown dwarfs, published in Kirkpatrick et al. (2012):[ 1]

  • WISE 0146+4234 (Y0)
  • WISE 0350-5658 (Y1)
  • WISE 0359-5401 (Y0)
  • WISE 0713-2917 (Y0)
  • WISE 0734-7157 (Y0)
  • WISE 2220-3628 (Y0)

Notes

  1. ↑ 1.0 1.1 The distance and parallax are as recorded by Marsh (2012) but are totally incompatible. A parallax near 250 mas would imply a distance near 4 pc; a distance near 21 pc would imply a parallax near 48 mas.

References

  1. ↑ Kirkpatrick, J. D.; Gelino, C. R.; Cushing, M. C.; Mace, G. N.; Griffith, R. L.; Skrutskie, M. F.; Marsh, K. A.; Wright, E. L.; Eisenhardt, P. R.; McLean, I. S.; Mainzer, A. K.; Burgasser, A. J.; Tinney, C. G.; Parker, S.; Salter, G. (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. 
  2. ↑ Marsh, Kenneth A.; Wright, Edward L.; Kirkpatrick, J. Davy; Gelino, Christopher R.; Cushing, Michael C.; Griffith, Roger L.; Skrutskie, Michael F.; Eisenhardt, Peter R. (2013). "Parallaxes and Proper Motions of Ultracool Brown Dwarfs of Spectral Types Y and Late T". The Astrophysical Journal 762 (2): 119. arXiv:1211.6977. Bibcode:2013ApJ...762..119M. doi:10.1088/0004-637X/762/2/119. 
Stars of Mensa
Bayer
Variable
  • W
  • TU
  • TY
  • TZ
  • UX
  • WX
  • YY
  • AH
HR
  • 1109
  • 1154
  • 1531
  • 1606
  • 1682
  • 1700
HD
Other
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