SDSS J081709.71+143923.0

All names: Gaia DR2 652300700701087232, SDSS J081709.71+143922.9, SDSS J081709.70+143923.0, SDSS J081709.71+143923.0, Gaia DR3 652300700701087232, GALEX J081709.6+143923, Gaia EDR3 652300700701087232

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013
Right ascension 08 17 09.71 (0.2) 08 17 09.71 08 17 09.71 (0.3) 08 17 09.71 (0.2) 08 17 09.71
Declination 14 39 22.94 (0.1) 14 39 23.00 14 39 22.94 (0.2) 14 39 23.07 (0.1) 14 39 23.02
Spectral type DA DA DA DA
Effective temperature [K] 50662.0 (2798) 26552.0 65882.0 (4134)
log(g) [cgs] 6.93 (0.2) 6.45 7.50 (0.2)
Mass [M] 0.33 (0.04) 0.211 0.546 (0.06)
log(Luminosity) [L] 0.80 (0.2)
Cooling age [Gyr] 0.0001
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] 0.77 (0.3) 0.53 (0.4) 0.77 (0.3)
Distance [pc] 1298.86 (479) 1882.61 (1502) 1298.87 (479)
Composition H H
Proper motion (right ascension) [mas/yr] -3.686049661 (0.3) -4.889201245 (0.6) -3.686 (0.3)
Proper motion (declination) [mas/yr] -7.960281677 (0.2) -7.761868774 (0.3) -7.96 (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 18.30 (0.02) 18.30 (0.01) 18.32 (0.02)
g magnitude 18.69 (0.008) 18.69 (0.008) 18.71 (0.01)
r magnitude 19.20 (0.01) 19.20 (0.01) 19.22 (0.02)
i magnitude 19.51 (0.02) 19.52 (0.02) 19.52 (0.02)
z magnitude 19.83 (0.1) 19.82 (0.1) 19.84 (0.1)
G magnitude 18.94 (0.03) 19.00 18.94 (0.004)
BP magnitude 18.89 (0.03) 18.76
RP magnitude 19.19 (0.04) 19.28
Pan g magnitude 18.75 (0.006)
Pan r magnitude 19.19 (0.01)
Pan i magnitude 19.58 (0.01)
Pan z magnitude 19.84 (0.03)
Pan y magnitude 19.90 (0.05)
E(B-V) 0.030

* 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.