SDSS J081216.24+131708.2

All names: Gaia DR2 650594434751012096, SDSS J081216.24+131708.2, Gaia EDR3 650594434751012096, GALEX J081216.2+131709, SDSS J081216.23+131708.2, Gaia DR3 650594434751012096, SDSS J081216.24+131708.27

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 08 12 16.25 (0.2) 08 12 16.24 08 12 16.25 (0.3) 08 12 16.24 (0.2)
Declination 13 17 08.29 (0.2) 13 17 08.29 13 17 08.29 (0.2) 13 17 08.29 (0.2)
Spectral type DA DAH DAH DAH DA
Effective temperature [K] 18352.7 (224) 15121.0 17942.0 (262)
log(g) [cgs] 8.00 (0.2) 7.77 7.85 (0.05)
Mass [M☉] 0.6196766082577208 (0.2) 0.488
log(Luminosity) [L☉]
Cooling age [Gyr] 0.1317
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] 2.49 (0.3) 2.13 (0.4) 2.49 (0.3)
Distance [pc] 401.16 (43) 469.96 (78) 401.16 (43)
Composition H
Proper motion (right ascension) [mas/yr] 8.468951828 (0.3) 7.762745543 (0.6) 8.469 (0.3)
Proper motion (declination) [mas/yr] -0.437898465 (0.2) -0.262646875 (0.4) -0.438 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.28 (0.03) 19.28 (0.03) 19.27 (0.03)
g magnitude 19.17 (0.01) 19.19 (0.02) 19.17 (0.01)
r magnitude 19.46 (0.01) 19.49 (0.02) 19.46 (0.01)
i magnitude 19.76 (0.02) 19.78 (0.03) 19.76 (0.03)
z magnitude 20.00 (0.1) 20.02 (0.1) 20.00 (0.1)
G magnitude 19.35 (0.03) 19.39 19.35 (0.004)
BP magnitude 19.41 (0.03) 19.33
RP magnitude 19.47 (0.05) 19.40
Pan g magnitude 19.19 (0.009)
Pan r magnitude 19.47 (0.007)
Pan i magnitude 19.75 (0.02)
Pan z magnitude 20.02 (0.02)
Pan y magnitude 19.92 (0.08)
E(B-V) 0.020

* 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.