WD 0920+015

All names: [MMN2004c] WD J0923+0120, WD 0920+015, Gaia DR3 3844065450124684544, 0920+015, Gaia EDR3 3844065450124684544, GALEX J092329.8+012020, USNO-A2.0 0900-06385793, SDSS J092329.81+012020.0, Gaia DR2 3844065450124684544

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Romero et al. 2013 Tremblay et al. 2011 Mukadam et al. 2006 Mukadam et al. 2004 Vincent et al. 2024 Simbad White Dwarf Research Corporation 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 23 29.74 (0.1) 09 23 29.81 09 23 29.75 (0.2) 09 23 29.74 09 23 29.82 (0.1) 09 23 29.81 09 23 28.82 09 23 29.81 09 23 29.81
Declination 01 20 20.00 (0.1) 01 20 20.03 01 20 20.00 (0.2) 01 20 20.00 01 20 20.05 (0.1) 01 20 20.03 01 20 18.24 01 20 20.01 01 20 20.00
Spectral type DA DA DA DA DAV DA DA4.5 DA DA
Effective temperature [K] 10628.0 11190.0 11470.0 (160) 11190.0 11190.0 11197.0 (337) 11150.0 11150.0 (69) 11280.0 (86) 11170.0 (67)
log(g) [cgs] 8.45 8.38 8.54 (0.06) 8.38 8.38 8.57 (0.04) 8.74 8.74 (0.06) 8.60 (0.06) 8.77 (0.07)
Mass [M] 0.891 0.95 (0.04) 0.966 (0.03) 0.969 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 1.0230 1.0471
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] 7.42 (0.2) 7.23 (0.2) 7.42 7.42 (0.2)
Distance [pc] 134.83 (3) 138.32 (4) 134.83 134.83 (3)
Composition H H
Proper motion (right ascension) [mas/yr] -67.2173111 (0.2) -67.34946918 (0.4) -67.217 (0.2) -65.7 -66.0
Proper motion (declination) [mas/yr] -3.148417863 (0.1) -3.025994192 (0.3) -3.148 (0.1) -11.6 -8.0
Variability VAR VAR VAR VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.90 (0.3)
V magnitude 18.30 18.30 18.30 18.34
R magnitude 18.10 (0.3)
I magnitude
J magnitude 18.48 (0.08)
H magnitude 18.34 (0.09)
K magnitude 18.40 (0.2)
u magnitude 18.65 (0.02) 18.65 (0.02) 18.64 (0.02) 18.63 18.65 (0.02) 18.63 (0.02)
g magnitude 18.34 (0.007) 18.34 (0.007) 18.34 (0.02) 18.34 18.34 (0.02) 18.34 (0.02)
r magnitude 18.50 (0.009) 18.50 (0.009) 18.50 (0.01) 18.50 18.50 (0.01) 18.50 (0.01)
i magnitude 18.69 (0.01) 18.70 (0.01) 18.68 (0.03) 18.69 18.68 (0.02) 18.69 (0.02)
z magnitude 18.82 (0.04) 18.82 (0.04) 18.82 (0.04) 18.82 18.82 (0.04) 18.82 (0.04)
G magnitude 18.40 (0.02) 18.44 18.40 18.40 (0.003)
BP magnitude 18.46 (0.02) 18.48
RP magnitude 18.43 (0.02) 18.37
Pan g magnitude 18.38 (0.01)
Pan r magnitude 18.50 (0.006)
Pan i magnitude 18.68 (0.008)
Pan z magnitude 18.81 (0.02)
Pan y magnitude 18.97 (0.05)
E(B-V) 0.006
Period #1 [s] 595.1 655.7 595.2
Amplitude #1 [mma] 2.7 4.4 7.4
Period #2 [s] 1436.4 668.9
Amplitude #2 [mma] 1.4 3.5
Period #3 [s] 2032.3
Amplitude #3 [mma]

* 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.