SDSS J091005.44+081512.2

All names: Gaia DR2 590291955746064000, WD 0907+084, SDSS J091005.45+081512.2, Gaia EDR3 590291955746064000, Gaia DR3 590291955746064000, SDSS J091005.44+081512.0, SDSS J091005.44+081512.2, SDSS J091005.45+081512.0

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Ferrario et al. 2015 Tremblay et al. 2011 Kulebi et al. 2009 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 10 05.45 (0.1) 09 10 05.45 09 10 05.45 (0.2) 09 10 05.44 09 10 05.45 09 10 05.45 (0.1) 09 10 05.45 09 10 05.40 09 10 05.45
Declination 08 15 11.99 (0.09) 08 15 12.25 08 15 12.00 (0.1) 08 15 12.20 08 15 11.99 08 15 12.31 (0.09) 08 15 12.25 08 15 08.64 08 15 12.21
Spectral type DA DA DA DA DAH DA DA DA_auto DA DAH DA
Effective temperature [K] 27522.4 (604) 23497.0 25000.0 27670.0 (260) 25158.0 (1163) 27601.0 (151) 27571.0 (196)
log(g) [cgs] 7.98 (0.7) 7.81 7.85 (0.04) 8.00 (0) 7.85 (0.07) 7.89 (0.03) 7.91 (0.03)
Mass [M] 0.6289827099382415 (0.07) 0.535 0.56 (0.02) 0.556 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 0.0220 0.0123
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] 3.03 (0.1) 3.08 (0.2) 3.03 3.03 (0.1)
Distance [pc] 330.00 (16) 324.77 (24) 330.00 330.00 (16)
Composition H H H
Proper motion (right ascension) [mas/yr] -3.326775977 (0.1) -2.751227647 (0.3) -3.327 (0.1) -3.8
Proper motion (declination) [mas/yr] -19.91064297 (0.1) -19.91361066 (0.3) -19.911 (0.1) -20.8
Variability
Magnetic yes yes
Bd [MG] 1.01 1.01 (0)
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 18.37 (0.03)
H magnitude 18.34 (0.07)
K magnitude
u magnitude 17.38 (0.009) 17.38 (0.009) 17.40 (0.02) 17.40 17.40 (0.02)
g magnitude 17.54 (0.005) 17.54 (0.005) 17.56 (0.02) 17.56 17.56 (0.02)
r magnitude 17.96 (0.007) 17.96 (0.007) 17.96 (0.01) 17.96 17.97 (0.01)
i magnitude 18.27 (0.01) 18.27 (0.01) 18.29 (0.01) 18.29 18.29 (0.01)
z magnitude 18.64 (0.04) 18.64 (0.04) 18.65 (0.04) 18.64 18.66 (0.04)
G magnitude 17.77 (0.008) 17.79 17.77 17.77 (0.003)
BP magnitude 17.68 (0.008) 17.63
RP magnitude 18.00 (0.02) 18.02
Pan g magnitude 17.58 (0.004)
Pan r magnitude 17.98 (0.005)
Pan i magnitude 18.31 (0.007)
Pan z magnitude 18.59 (0.01)
Pan y magnitude 18.77 (0.03)
E(B-V) 0.026

* 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.