SDSS J094203.18+544630.3

All names: SDSS J094203.18+544630.1, SBSS 0938+550A, SDSS J094203.18+544630.3, SDSS J094203.19+544630.1, SDSS J094203.19+544630.3, Gaia EDR3 1021452697410988288, Gaia DR2 1021452697410988288, SDSS J094203.19+544630.2, LAMOST J094203.19+544630.3, WD 0938+550.1, LAMOST J094203.18+544630.3, Gaia DR3 1021452697410988288, LAMOST J094203.18+544630.5, GALEX J094203.1+544630

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 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 42 03.20 (0.05) 09 42 03.19 09 42 03.20 (0.07) 09 42 03.20 09 42 03.20 (0.05) 09 42 03.18 09 42 03.12 09 42 03.19 09 42 03.19
Declination 54 46 30.12 (0.04) 54 46 30.32 54 46 30.13 (0.08) 54 46 30.12 54 46 30.36 (0.04) 54 46 30.30 54 46 24.24 54 46 30.25 54 46 30.25
Spectral type DA DA DA DA DA DA1.8 DA DA
Effective temperature [K] 25785.0 28190.0 (170) 29402.0 (655) 27922.0 (139) 28109.0 (157) 27984.0 (93)
log(g) [cgs] 7.93 7.90 (0.03) 8.03 (0.03) 7.94 (0.03) 7.90 (0.03) 7.96 (0.03)
Mass [M] 0.599 0.59 (0.01) 0.663 (0.02) 0.591 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.0166 0.0115
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] 3.81 (0.07) 3.97 (0.1) 3.81 3.81 (0.07)
Distance [pc] 262.40 (5) 251.61 (7) 262.40 262.41 (5)
Composition H H
Proper motion (right ascension) [mas/yr] -0.363064421 (0.07) -0.461796176 (0.1) -0.363 (0.07) -1.6 -5.0
Proper motion (declination) [mas/yr] -14.94922836 (0.06) -15.04523262 (0.1) -14.949 (0.06) -12.7 -12.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.00
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 16.72 (0.006) 16.72 (0.006) 16.71 (0.01) 16.73 16.73 (0.01) 16.73 (0.02)
g magnitude 16.94 (0.004) 16.93 (0.004) 16.93 (0.02) 16.93 16.96 (0.02) 16.93 (0.02)
r magnitude 17.41 (0.005) 17.41 (0.005) 17.40 (0.02) 17.42 17.41 (0.02) 17.42 (0.03)
i magnitude 17.74 (0.007) 17.74 (0.007) 17.73 (0.01) 17.75 17.75 (0.01) 17.75 (0.02)
z magnitude 18.15 (0.03) 18.15 (0.03) 18.13 (0.03) 18.11 18.15 (0.03) 18.11 (0.03)
G magnitude 17.17 (0.005) 17.20 17.17 17.17 (0.003)
BP magnitude 17.05 (0.005) 16.99
RP magnitude 17.45 (0.009) 17.44
Pan g magnitude 17.01 (0.003)
Pan r magnitude 17.42 (0.007)
Pan i magnitude 17.75 (0.005)
Pan z magnitude 18.05 (0.005)
Pan y magnitude 18.24 (0.01)
E(B-V) 0.016

* 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.