SDSS J220844.18-085857.4

All names: GALEX J220844.1-085856, Gaia DR3 2618899125265568768, Gaia DR2 2618899125265568768, SDSS J220844.18-085857.4, SDSS J220844.18-085857.5, SDSS J220844.19-085857.5, SDSS J220844.19-085857.50, Gaia EDR3 2618899125265568768

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 22 08 44.22 (0.1) 22 08 44.19 22 08 44.22 (0.1) 22 08 44.22 22 08 44.18 (0.1)
Declination -08 58 57.72 (0.09) -08 58 57.48 -08 58 57.71 (0.1) -08 58 57.72 -08 58 57.46 (0.09)
Spectral type DA DA DA DA DA
Effective temperature [K] 27271.0 28122.0 (151) 26938.0 (1090)
log(g) [cgs] 8.72 8.70 (0.03) 8.73 (0.04)
Mass [M] 1.072 1.023 (0.01) 1.076 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.1182
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 7.49 (0.1) 7.24 (0.1) 7.49 7.49 (0.1)
Distance [pc] 133.55 (2) 138.09 (3) 133.55 133.55 (2)
Composition H
Proper motion (right ascension) [mas/yr] 32.5153887 (0.1) 32.4131375 (0.2) 32.515 (0.1)
Proper motion (declination) [mas/yr] -15.81375741 (0.1) -15.11897168 (0.2) -15.814 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 16.62 (0.007) 16.61 (0.02) 16.62 (0.007)
g magnitude 16.87 (0.004) 16.89 (0.02) 16.87 (0.004)
r magnitude 17.31 (0.005) 17.30 (0.01) 17.31 (0.005)
i magnitude 17.64 (0.007) 17.64 (0.01) 17.64 (0.007)
z magnitude 17.99 (0.02) 17.99 (0.03) 17.99 (0.02)
G magnitude 17.10 (0.007) 17.13 17.10 17.10 (0.003)
BP magnitude 16.99 (0.007) 16.94
RP magnitude 17.37 (0.01) 17.35
Pan g magnitude 16.94 (0.002)
Pan r magnitude 17.33 (0.004)
Pan i magnitude 17.67 (0.003)
Pan z magnitude 17.97 (0.01)
Pan y magnitude 18.19 (0.01)
E(B-V) 0.017

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.