SDSS J091845.56+612215.1

All names: Gaia DR3 1039877690498513792, Gaia DR2 1039877690498513792, SDSS J091845.55+612215.1, SDSS J091845.56+612215.1, SDSS J091845.56+612215.10, SDSS J091845.55+612215.0, Gaia EDR3 1039877690498513792

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Kepler et al. 2016 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 09 18 45.56 (0.08) 09 18 45.56 09 18 45.56 (0.1) 09 18 45.56 09 18 45.56 (0.08)
Declination 61 22 15.02 (0.08) 61 22 15.19 61 22 15.03 (0.1) 61 22 15.02 61 22 15.20 (0.08)
Spectral type DA DA DA DA DA DA
Effective temperature [K] 30191.0 (184) 25136.0 30194.0 (141) 31540.0 (1519)
log(g) [cgs] 7.85 (0.05) 7.59 7.87 (0.03) 7.88 (0.07)
Mass [M] 0.57 (0.02) 0.442 0.586 (0.05)
log(Luminosity) [L] -0.78 (0.03)
Cooling age [Gyr] 0.0085 (0.0002) 0.0164
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] 2.14 (0.1) 2.10 (0.2) 2.14 2.14 (0.1)
Distance [pc] 466.42 (25) 475.82 (45) 466.42 466.42 (25)
Composition H H
Proper motion (right ascension) [mas/yr] -0.014141776 (0.09) -0.111237463 (0.2) -0.014 (0.09)
Proper motion (declination) [mas/yr] -10.84213589 (0.1) -10.39547395 (0.3) -10.842 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.65 (0.01) 17.67 (0.02) 17.66 (0.01)
g magnitude 17.88 (0.006) 17.92 (0.02) 17.89 (0.006)
r magnitude 18.31 (0.008) 18.32 (0.02) 18.31 (0.008)
i magnitude 18.65 (0.01) 18.66 (0.02) 18.65 (0.01)
z magnitude 18.96 (0.05) 18.96 (0.05) 18.96 (0.05)
G magnitude 18.10 (0.009) 18.14 18.10 18.10 (0.003)
BP magnitude 17.99 (0.009) 17.93
RP magnitude 18.40 (0.02) 18.40
Pan g magnitude 17.92 (0.005)
Pan r magnitude 18.32 (0.005)
Pan i magnitude 18.68 (0.004)
Pan z magnitude 18.91 (0.02)
Pan y magnitude 19.21 (0.04)
E(B-V) 0.033

* 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.