Observation data Epoch 2000 Equinox 2000 | |
---|---|
Constellation | Cancer |
Right ascension | 08h 25m 07.35720s |
Declination | 28° 05′ 48.5592″ |
Characteristics | |
Evolutionary stage | sub-brown dwarf |
Spectral type | Y0.5 [1] |
Apparent magnitude (J) | 22.53 ±0.10 |
Apparent magnitude (H) | 23.09 ±0.18 |
Astrometry | |
Proper motion (μ) |
RA: -66.7 ±0.9
mas/
yr
[2] Dec.: -235.8 ±0.9 mas/ yr [2] |
Parallax (π) | 152.6 ± 2 mas [2] |
Distance | 21.4 ± 0.3
ly (6.55 ± 0.09 pc) |
Details [3] | |
Mass | 5 MJup |
Surface gravity (log g) | 4 cgs |
Temperature | 350 K |
Age | 800 Myr |
Other designations | |
WISEA J082507.37+280548.2, WISE J082507.35+280548.5 | |
Database references | |
SIMBAD | data |
WISE 0825+2805 (WISE J082507.35+280548.5) is a (sub-)brown dwarf with a spectral type of Y0.5. [1] It is about 21.4 light-years away from Earth in the Cancer constellation. [2]
WISE 0825+2805 was discovered in 2015 by Schneider et al. with the Wide-field Infrared Survey Explorer and the Hubble Space Telescope, using WFC3 near-infrared grism spectroscopy. The team also announced the discovery of three T-dwarfs as well as two additional Y-dwarfs ( WISE J1206+8401 and WISE J2354+0240) in the same paper. [1]
WISE 0825+2805 was observed with JWST NIRCam and MIRI. The modeling requires phosphine-free and diabatic models to produce a good fit. The good fit requires an effective temperature of 350 Kelvin and a surface gravity of log g = 4.0. Alternatively a lower surface gravity could improve the fit. The model parameters correspond to a mass of 5 MJ and an age of 800 Myrs. [3]
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Observation data Epoch 2000 Equinox 2000 | |
---|---|
Constellation | Cancer |
Right ascension | 08h 25m 07.35720s |
Declination | 28° 05′ 48.5592″ |
Characteristics | |
Evolutionary stage | sub-brown dwarf |
Spectral type | Y0.5 [1] |
Apparent magnitude (J) | 22.53 ±0.10 |
Apparent magnitude (H) | 23.09 ±0.18 |
Astrometry | |
Proper motion (μ) |
RA: -66.7 ±0.9
mas/
yr
[2] Dec.: -235.8 ±0.9 mas/ yr [2] |
Parallax (π) | 152.6 ± 2 mas [2] |
Distance | 21.4 ± 0.3
ly (6.55 ± 0.09 pc) |
Details [3] | |
Mass | 5 MJup |
Surface gravity (log g) | 4 cgs |
Temperature | 350 K |
Age | 800 Myr |
Other designations | |
WISEA J082507.37+280548.2, WISE J082507.35+280548.5 | |
Database references | |
SIMBAD | data |
WISE 0825+2805 (WISE J082507.35+280548.5) is a (sub-)brown dwarf with a spectral type of Y0.5. [1] It is about 21.4 light-years away from Earth in the Cancer constellation. [2]
WISE 0825+2805 was discovered in 2015 by Schneider et al. with the Wide-field Infrared Survey Explorer and the Hubble Space Telescope, using WFC3 near-infrared grism spectroscopy. The team also announced the discovery of three T-dwarfs as well as two additional Y-dwarfs ( WISE J1206+8401 and WISE J2354+0240) in the same paper. [1]
WISE 0825+2805 was observed with JWST NIRCam and MIRI. The modeling requires phosphine-free and diabatic models to produce a good fit. The good fit requires an effective temperature of 350 Kelvin and a surface gravity of log g = 4.0. Alternatively a lower surface gravity could improve the fit. The model parameters correspond to a mass of 5 MJ and an age of 800 Myrs. [3]
{{
cite journal}}
: CS1 maint: numeric names: authors list (
link)