SDSS J080759.47+273823.7

All names: SDSS J080759.46+273823.8, SDSS J080759.47+273823.7, SDSS J080759.47+273823.6, Gaia DR3 683913863319321216, Gaia EDR3 683913863319321216, GALEX J080759.4+273823, Gaia DR2 683913863319321216, SDSS J080759.47+273823.68

Parameter Unit Gaia EDR3 SDSS DR10 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Simbad
Right ascension 08 07 59.46 (0.2) 08 07 59.46 08 07 59.46 (0.2) 08 07 59.46 (0.2)
Declination 27 38 23.67 (0.1) 27 38 23.85 27 38 23.68 (0.1) 27 38 23.96 (0.1)
Spectral type DA+M DA+M1 DA+M1 DA
Effective temperature [K] 33647.0 (379) 19431.0 36154.0 (480)
log(g) [cgs] 7.32 (0.07) 6.67 7.40 (0.1)
Mass [M] 0.38 (0.02) 0.21 0.479 (0.02)
log(Luminosity) [L] -0.23 (0.05)
Cooling age [Gyr] 0.0008 (0.0004)
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] 1.20 (0.2) 1.12 (0.3) 1.20 (0.2)
Distance [pc] 836.24 (147) 890.81 (227) 836.26 (147)
Composition H H
Proper motion (right ascension) [mas/yr] -0.909117353 (0.2) -0.827795219 (0.4) -0.909 (0.2)
Proper motion (declination) [mas/yr] -18.37356462 (0.1) -18.06449812 (0.3) -18.374 (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 17.96 (0.01) 18.02 (0.03) 17.97 (0.01)
g magnitude 18.14 (0.006) 18.26 (0.02) 18.13 (0.006)
r magnitude 18.50 (0.009) 18.69 (0.03) 18.51 (0.009)
i magnitude 18.89 (0.02) 19.08 (0.2) 18.89 (0.01)
z magnitude 18.90 (0.05) 19.12 (0.4) 18.91 (0.05)
G magnitude 18.55 18.60 18.55 (0.005)
BP magnitude
RP magnitude
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.031

* 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.