SDSS J081320.00+215259.2

All names: Gaia EDR3 676847194712056064, WD 0810+220, SDSS J081319.92+215259.2, WISE J081319.97+215259.5, SDSS J081320.00+215259.2, WISEA J081319.98+215259.8, GALEX J081320.0+215259, SDSS J081320.01+215259.3, Gaia DR2 676847194712056064

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism sdss-wdms.org (29/04/2016) Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013
Right ascension 08 13 20.02 (1) 08 13 20.00 08 13 20.02 (1) 08 13 20.00 08 13 20.00 08 13 19.34 08 13 20.01
Declination 21 52 58.92 (1) 21 52 59.24 21 52 58.93 (0.9) 21 52 59.20 21 52 59.24 21 52 54.84 21 52 59.26
Spectral type DA+M DA+M DA+M DA+M DA d DA+M
Effective temperature [K] 30641.0 (1033) 7126.0 29387.0 (1176) 8225.0 (129)
log(g) [cgs] 7.98 (0.3) 9.42 7.81 (0.3) 8.67 (0.1)
Mass [M] 0.64 (0.1) 1.337 0.55 (0.1)
log(Luminosity) [L] -0.84 (0.2)
Cooling age [Gyr] 0.0085 (0.002) 2.6000
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] 3.07 (2) 18.61 (2)
Distance [pc] 325.65 (177) 53.73 (6) 230.00 (59)
Composition H H
Proper motion (right ascension) [mas/yr] -8.256163139 (2) 20.16349733 (3)
Proper motion (declination) [mas/yr] -28.75859252 (1) -28.52492358 (2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.89 (0.03)
H magnitude
K magnitude
u magnitude 19.58 (0.03) 19.67 19.58 (0.03) 19.67 19.64 (0.03)
g magnitude 19.64 (0.01) 19.72 19.64 (0.01) 19.72 19.71 (0.02)
r magnitude 19.70 (0.02) 19.85 19.70 (0.02) 19.85 19.85 (0.03)
i magnitude 19.32 (0.02) 19.49 19.32 (0.02) 19.49 19.49 (0.02)
z magnitude 18.98 (0.05) 19.08 18.98 (0.05) 19.08 19.06 (0.05)
G magnitude 19.98 (0.07) 19.98
BP magnitude 19.69 (0.07) 19.51
RP magnitude 19.05 (0.05) 19.00
Pan g magnitude 19.73 (0.02)
Pan r magnitude 19.82 (0.01)
Pan i magnitude 19.46 (0.01)
Pan z magnitude 19.17 (0.02)
Pan y magnitude 18.90 (0.06)
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.