SDSS J080714.44+220756.0

All names: SDSS J080714.45+220756.0, Gaia DR3 677008444963867520, Gaia DR2 677008444963867520, WD 0804+222, SDSS J080714.44+220756.0, Gaia EDR3 677008444963867520

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013
Right ascension 08 07 14.44 (0.6) 08 07 14.45 08 07 14.44 (0.8) 08 07 14.45 (0.6) 08 07 14.45 08 07 14.02 08 07 14.45
Declination 22 07 56.04 (0.4) 22 07 56.01 22 07 56.04 (0.5) 22 07 56.00 (0.4) 22 07 56.01 22 07 53.40 22 07 56.02
Spectral type DA DA DA_auto DA DA
Effective temperature [K] 20091.0 20939.0 (905) 20355.0 (929)
log(g) [cgs] 7.29 7.67 (0.2) 7.98 (0.2)
Mass [M] 0.333 0.613 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.0114
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] -0.76 (0.7) -0.77 (1)
Distance [pc]
Composition H
Proper motion (right ascension) [mas/yr] -7.734322095 (0.7) -7.036796475 (2) -7.734 (0.7) -7.1
Proper motion (declination) [mas/yr] 2.93798794 (0.5) 1.862401583 (0.9) 2.938 (0.5) 5.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.16 (0.04) 20.19 (0.05) 20.20 (0.05) 20.20 20.18 (0.05)
g magnitude 20.13 (0.02) 20.12 (0.02) 20.13 (0.02) 20.13 20.14 (0.02)
r magnitude 20.43 (0.03) 20.44 (0.03) 20.46 (0.03) 20.46 20.46 (0.03)
i magnitude 20.71 (0.05) 20.71 (0.05) 20.74 (0.05) 20.73 20.74 (0.05)
z magnitude 21.12 (0.2) 21.03 (0.2) 21.04 (0.2) 21.03 21.06 (0.2)
G magnitude 20.31 (0.08) 20.35 20.31 (0.007)
BP magnitude 20.33 (0.08) 20.02
RP magnitude 20.59 (0.1) 20.12
Pan g magnitude 20.14 (0.009)
Pan r magnitude 20.46 (0.02)
Pan i magnitude 20.76 (0.03)
Pan z magnitude 20.85 (0.03)
Pan y magnitude
E(B-V)

* 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.