WISE 1828+2650

WISEPA J182831.08+265037.8

WISE 1828+2650 is circled in the centre (Infrared image from the WISE space telescope).
Observation data Epoch MJD 55467.61      Equinox J2000
Constellation	Lyra
Right ascension	18h 28m 31.10s
Declination	26° 50′ 37.79″
Characteristics
Spectral type	>Y2
Apparent magnitude (J (MKO filter system))	23.57 ± 0.35
Apparent magnitude (H (MKO filter system))	22.45 ± 0.08
Astrometry
Proper motion (μ)	RA: 954 ± 11 mas/yr Dec.: 153 ± 12.5 mas/yr
Parallax (π)	70 ± 14mas
Distance	approx. 47 ly (approx. 14 pc)
Details
Mass	3–6 or 0.5–20 MJup
Temperature	250–400 K
Age	2–4 or 0.1–10 Gyr
Other designations
WISEPA J182831.08+265037.8 WISEP J182831.08+265037.8 WISEP J1828+2650 WISE J1828+2650 WISE 1828+2650
Database references
SIMBAD	data

Coordinates: 18^h 28^m 31.10^s, +26° 50′ 37.79″

WISE 1828+2650 (full designation WISEPA J182831.08+265037.8) is a brown dwarf or rogue planet of spectral class >Y2, located in constellation Lyra at approximately 47 light-years from Earth. It is the "archetypal member" of the Y spectral class.

WISE 1828+2650 was discovered in 2011 from data collected by NASA's 40 cm (16 in) Wide-field Infrared Survey Explorer (WISE) space telescope at infrared wavelength. WISE 1828+2650 has two discovery papers: Kirkpatrick et al. (2011) and Cushing et al. (2011), however, basically with the same authors and published nearly simultaneously.

Currently the most accurate distance estimate of WISE 1828+2650 is a trigonometric parallax, measured using Spitzer Space Telescope and published in 2013 by Trent Dupuy and Adam Kraus: 0.070 ± 0.014 arcsec, corresponding to a distance 14.3+3.6
−2.4 pc, or 46.6+11.6
−7.8 ly.