Gaia DR2 2799809779202757376

All names: LSPM J0031+2218, 2MASS J00312484+2218240, LP 349-35, GALEX J003124.9+221822, Gaia DR2 2799809779202757376, NLTT 1675, SDSS J003125.04+221822.6, WDJ003124.91+221823.53, Gaia DR3 2799809779202757376, SDSS J003125.04+221822.5, Gaia EDR3 2799809779202757376, J0031+2218, USNO-B1.0 1123-00008421, TIC 242661363

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 00 31 25.14 (0.09) 00 31 25.13 00 31 25.14 00 31 24.91 (0.09) 00 31 25.13
Declination 22 18 21.98 (0.05) 22 18 22.02 22 18 21.98 22 18 23.53 (0.05) 22 18 22.02
Spectral type DA DA DA DA DA
Effective temperature [K] 6056.0 (22) 6095.0 (21) 6056.0 (22) 5995.0 5739.0 6193.0 (49)
log(g) [cgs] 8.07 (0.009) 8.09 (0.01) 8.07 (0.01) 8.04 7.88 8.13 (0.02)
Mass [M] 0.629 (0.008) 0.641 (0.009) 0.629 (0.009) 0.613 0.503 0.668 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 2.6500 2.4620 2.4700
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] 19.70 (0.1) 19.70 (0.1) 19.70 (0.1) 19.70 19.70 (0.1) 19.70 (0.1)
Distance [pc] 50.75 (0.2) 50.76 (0.4) 50.76 (0.3) 50.75 50.75 (0.2) 50.76 (0.3)
Composition H H
Proper motion (right ascension) [mas/yr] 200.8575905 (0.1) 200.2174828 (0.3) 200.858 (0.1) 200.2174828
Proper motion (declination) [mas/yr] -97.23663402 (0.08) -97.44597233 (0.1) -97.237 (0.08) -97.44597233
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.40
V magnitude
R magnitude 16.70
I magnitude
J magnitude 16.69 (0.02) 16.56 (0.1)
H magnitude 16.27 (0.2) 16.27 (0.2)
K magnitude
u magnitude 18.78 (0.02) 18.80 (0.02) 18.80 (0.02)
g magnitude 17.97 (0.006) 17.97 (0.006)
r magnitude 17.62 (0.006) 17.62 (0.006)
i magnitude 17.47 (0.007) 17.47 (0.007)
z magnitude 17.44 (0.01) 17.44 (0.01)
G magnitude 17.62 (0.01) 17.63 17.62 17.62 (0.003) 17.63
BP magnitude 17.92 (0.01) 17.92 17.92
RP magnitude 17.16 (0.009) 17.16 17.16
Pan g magnitude 17.94 (0.004) 17.94 (0.004)
Pan r magnitude 17.61 (0.004) 17.61 (0.004)
Pan i magnitude 17.48 (0.005) 17.48 (0.005)
Pan z magnitude 17.48 (0.005) 17.48 (0.005)
Pan y magnitude 17.47 (0.008) 17.47 (0.009)
E(B-V) 0.002

* 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.