WD 0909+015

All names: Gaia DR3 3843502465811524352, SDSS J091215.44+011958.9, SDSS J091215.44+011958.8, SDSS J091215.43+011958.8, SDSS J091215.44+011958.7, Gaia EDR3 3843502465811524352, 1RXS J091215.5+012003, WD 0909+015, Gaia DR2 3843502465811524352

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 09 12 15.44 (0.1) 09 12 15.44 09 12 15.44 (0.2) 09 12 15.44 09 12 15.44 (0.1) 09 12 15.44 09 12 14.88 09 12 15.44 09 12 15.44
Declination 01 19 58.87 (0.1) 01 19 58.82 01 19 58.86 (0.2) 01 19 58.87 01 19 58.81 (0.1) 01 19 58.81 01 19 56.28 01 19 58.87 01 19 58.87
Spectral type DA DA DA DA DA DA DA0.9 DA DA
Effective temperature [K] 49646.0 (736) 29138.0 54370.0 (2020) 39499.0 (5832) 55691.0 (1415) 54194.0 (1399) 55752.0 (1418)
log(g) [cgs] 7.81 (0.06) 7.41 7.94 (0.1) 7.80 (0.1) 8.03 (0.09) 7.96 (0.09) 8.04 (0.09)
Mass [M] 0.6 (0.02) 0.398 0.67 (0.07) 0.571 (0.08) 0.669 (0.04)
log(Luminosity) [L] 0.14 (0.05)
Cooling age [Gyr] 0.0020 (0.0001) 0.0106 0.0017
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] 1.95 (0.1) 1.84 (0.2) 1.95 1.95 (0.1)
Distance [pc] 512.38 (34) 544.06 (56) 512.38 512.37 (34)
Composition H H H
Proper motion (right ascension) [mas/yr] -3.524108865 (0.1) -3.83181957 (0.3) -3.524 (0.1) 4.4 4.0
Proper motion (declination) [mas/yr] 3.643335411 (0.1) 3.686774446 (0.3) 3.643 (0.1) -4.6 -5.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 18.65 (0.1)
H magnitude 18.36 (0.09)
K magnitude 18.50 (0.2)
u magnitude 17.07 (0.009) 17.07 (0.009) 17.13 (0.02) 17.14 17.13 (0.02) 17.14 (0.02)
g magnitude 17.49 (0.005) 17.49 (0.005) 17.52 (0.02) 17.51 17.53 (0.02) 17.51 (0.02)
r magnitude 17.99 (0.007) 17.99 (0.007) 17.98 (0.02) 17.98 17.98 (0.02) 17.98 (0.02)
i magnitude 18.31 (0.01) 18.31 (0.01) 18.37 (0.04) 18.36 18.37 (0.03) 18.36 (0.04)
z magnitude 18.60 (0.04) 18.60 (0.04) 18.77 (0.05) 18.74 18.79 (0.05) 18.74 (0.05)
G magnitude 17.74 (0.01) 17.77 17.74 17.74 (0.003)
BP magnitude 17.61 (0.01) 17.50
RP magnitude 18.04 (0.02) 18.06
Pan g magnitude 17.56 (0.004)
Pan r magnitude 18.00 (0.005)
Pan i magnitude 18.38 (0.005)
Pan z magnitude 18.65 (0.01)
Pan y magnitude 18.83 (0.02)
E(B-V) 0.037

* 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.