SDSS J083101.49+372200.9

All names: Gaia DR2 904866046384334592, SDSS J083101.48+372200.9, Gaia EDR3 904866046384334592, SDSS J083101.49+372200.9, WD 0827+375, Gaia DR3 904866046384334592

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 31 01.49 (0.7) 08 31 01.49 08 31 01.49 (1) 08 31 01.50 (0.7) 08 31 01.49 08 31 01.42 08 31 01.49
Declination 37 22 00.50 (0.5) 37 22 00.91 37 22 00.51 (0.7) 37 22 00.99 (0.5) 37 22 00.92 37 21 57.96 37 22 00.93
Spectral type DC+M: DC+M: DC+M DC: DC: DCM: DC
Effective temperature [K] 9450.0 9276.0 10426.0 (283) 10317.0 (207)
log(g) [cgs] 8.19 8.11 8.21 (0.6) 8.67 (0.8)
Mass [M] 0.716 0.647
log(Luminosity) [L]
Cooling age [Gyr] 0.9214 0.8955
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 3.16 (0.8) 3.05 (1) 3.16 (0.8)
Distance [pc] 316.18 (78) 327.92 (129) 316.18 (78)
Composition
Proper motion (right ascension) [mas/yr] -6.086265789 (0.8) -8.278902676 (2) -6.086 (0.8) -11.7
Proper motion (declination) [mas/yr] -30.81440132 (0.5) -31.6111774 (1) -30.814 (0.5) -32.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.38 (0.05) 20.37 (0.05) 20.51 (0.06) 20.51 20.51 (0.06)
g magnitude 20.27 (0.02) 20.27 (0.02) 20.27 (0.02) 20.26 20.26 (0.02)
r magnitude 20.29 (0.03) 20.30 (0.03) 20.32 (0.04) 20.32 20.32 (0.04)
i magnitude 20.37 (0.04) 20.37 (0.04) 20.52 (0.05) 20.52 20.52 (0.05)
z magnitude 20.59 (0.2) 20.74 (0.2) 20.72 (0.2) 20.72 20.73 (0.2)
G magnitude 20.24 (0.06) 20.30 20.24 (0.007)
BP magnitude 20.31 (0.06) 20.38
RP magnitude 20.11 (0.2) 20.37
Pan g magnitude 20.26 (0.02)
Pan r magnitude 20.31 (0.01)
Pan i magnitude 20.47 (0.01)
Pan z magnitude 20.55 (0.03)
Pan y magnitude
E(B-V) 0.023

* 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.