SDSS J092135.03+351100.8

All names: SDSS J092135.04+351100.8, SDSS J092135.03+351100.8, GALEX J092135.0+351101, WD 0918+353, Gaia DR2 702521581494516608, Gaia DR3 702521581494516608, Gaia EDR3 702521581494516608

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 21 35.04 (0.3) 09 21 35.04 09 21 35.04 (0.6) 09 21 35.04 (0.3) 09 21 35.03 09 21 35.14 09 21 35.04
Declination 35 11 00.81 (0.3) 35 11 00.85 35 11 00.81 (0.7) 35 11 00.93 (0.3) 35 11 00.86 35 10 54.12 35 11 00.83
Spectral type DA DA DA DA DA_auto DA DA DA
Effective temperature [K] 39584.0 (1198) 29285.0 37740.0 (1400) 38710.0 (981) 38182.0 (1012)
log(g) [cgs] 7.69 (0.1) 7.31 7.82 (0.2) 8.00 (0.1) 7.89 (0.1)
Mass [M] 0.52 (0.06) 0.373 0.58 (0.08) 0.608 (0.06)
log(Luminosity) [L] -0.19 (0.1)
Cooling age [Gyr] 0.0035 (0.0008) 0.0103 0.0051
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] 1.01 (0.4) 0.82 (0.6) 1.01 (0.4)
Distance [pc] 990.05 (357) 1226.79 (923) 990.00 (357)
Composition H H H
Proper motion (right ascension) [mas/yr] 5.075134705 (0.4) 6.289209009 (1) 5.075 (0.4) 10.1
Proper motion (declination) [mas/yr] -7.648893711 (0.4) -9.533331059 (1) -7.649 (0.4) -3.9
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.75 (0.02) 18.79 (0.02) 18.80 (0.03) 18.79 18.77 (0.03)
g magnitude 19.07 (0.01) 19.08 (0.01) 19.11 (0.02) 19.10 19.09 (0.02)
r magnitude 19.58 (0.02) 19.59 (0.02) 19.59 (0.03) 19.59 19.59 (0.03)
i magnitude 19.89 (0.03) 19.87 (0.03) 19.88 (0.04) 19.87 19.88 (0.03)
z magnitude 20.23 (0.1) 20.27 (0.1) 20.28 (0.1) 20.27 20.28 (0.1)
G magnitude 19.33 (0.03) 19.40 19.33 (0.004)
BP magnitude 19.20 (0.03) 19.10
RP magnitude 19.64 (0.06) 19.82
Pan g magnitude 19.14 (0.007)
Pan r magnitude 19.59 (0.007)
Pan i magnitude 19.97 (0.009)
Pan z magnitude 20.24 (0.03)
Pan y magnitude 20.27 (0.1)
E(B-V) 0.019

* 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.