SDSS J081000.43+242246.4

All names: SDSS J081000.43+242246.4, Gaia DR2 680728711276499200, SDSS J081000.43+242246.5, GALEX J081000.4+242247, Gaia EDR3 680728711276499200, SDSS J081000.43+242246.3, Gaia DR3 680728711276499200, WD 0807+245

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 10 00.43 (0.3) 08 10 00.43 08 10 00.43 (0.3) 08 10 00.43 (0.3) 08 10 00.43 08 10 00.48 08 10 00.43
Declination 24 22 46.25 (0.2) 24 22 46.47 24 22 46.26 (0.2) 24 22 46.56 (0.2) 24 22 46.48 24 22 42.96 24 22 46.48
Spectral type DC DC DC DC DC DC DC
Effective temperature [K] 10509.0 10444.0 10781.0 (334) 10721.0 (372)
log(g) [cgs] 8.36 8.28 8.17 (0.6) 9.42 (0.4)
Mass [M] 0.825 0.758
log(Luminosity) [L]
Cooling age [Gyr] 0.8976 0.8412
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 4.46 (0.4) 4.50 (0.4) 4.46 (0.4)
Distance [pc] 224.33 (19) 222.14 (20) 224.33 (19)
Composition
Proper motion (right ascension) [mas/yr] -4.487114196 (0.3) -4.207220368 (0.7) -4.487 (0.3) -1.2
Proper motion (declination) [mas/yr] -19.5552319 (0.2) -20.05537867 (0.4) -19.555 (0.2) -21.1
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.38 (0.03) 19.38 (0.03) 19.40 (0.03) 19.40 19.40 (0.03)
g magnitude 19.25 (0.01) 19.25 (0.01) 19.25 (0.02) 19.25 19.26 (0.02)
r magnitude 19.33 (0.01) 19.33 (0.01) 19.35 (0.02) 19.35 19.36 (0.02)
i magnitude 19.52 (0.02) 19.52 (0.02) 19.52 (0.03) 19.52 19.53 (0.03)
z magnitude 19.71 (0.08) 19.71 (0.08) 19.70 (0.08) 19.70 19.71 (0.08)
G magnitude 19.30 (0.04) 19.35 19.30 (0.004)
BP magnitude 19.26 (0.04) 19.19
RP magnitude 19.24 (0.06) 19.07
Pan g magnitude 19.30 (0.01)
Pan r magnitude 19.37 (0.008)
Pan i magnitude 19.53 (0.01)
Pan z magnitude 19.74 (0.02)
Pan y magnitude 19.86 (0.07)
E(B-V) 0.011

* 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.