Gaia DR2 688818750329816192

All names: LSPM J0910+2554, Gaia EDR3 688818750329816192, WDJ09101.56+255447.70, WDJ091001.56+255447.70, SDSS J091001.49+255446.4, SDSS J091001.50+255446.4, J0910+2554, Gaia DR3 688818750329816192, Gaia DR2 688818750329816192, USNO-B1.0 1159-00162280

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Vincent et al. 2023
Right ascension 09 10 01.33 (0.3) 09 10 01.33 09 10 01.33 09 10 01.56 (0.3) 09 10 01.33
Declination 25 54 42.53 (0.2) 25 54 42.69 25 54 42.53 25 54 47.70 (0.2) 25 54 42.69
Spectral type DC DC DA DC DZ
Effective temperature [K] 5109.0 (44) 4900.0 (75) 5484.0 5201.0 5596.0 (118)
log(g) [cgs] 8.23 (0.03) 8.22 (0.04) 8.43 8.27 8.48 (0.05)
Mass [M] 0.716 (0.03) 0.711 (0.02) 0.862 0.743 0.902 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 7.3900 6.8360 6.5700
log(H/He) -2.15
log(C/He)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 16.18 (0.3) 16.17 (0.4) 16.17 (0.4) 16.18 16.18 (0.3) 16.17 (0.4)
Distance [pc] 61.80 (1) 61.84 (1) 61.86 (1) 61.80 61.80 (1) 61.86 (1)
Composition He He
Proper motion (right ascension) [mas/yr] -194.9191207 (0.4) -195.5255266 (0.6) -194.919 (0.4) -195.5255266
Proper motion (declination) [mas/yr] -323.4261617 (0.3) -323.3971554 (0.5) -323.426 (0.3) -323.3971554
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.10
V magnitude
R magnitude 19.00
I magnitude
J magnitude 18.34 (0.08)
H magnitude
K magnitude
u magnitude 20.73 (0.07) 20.74 (0.06) 20.74 (0.06)
g magnitude 19.50 (0.01) 19.50 (0.01)
r magnitude 18.98 (0.01) 18.98 (0.01)
i magnitude 18.77 (0.01) 18.77 (0.01)
z magnitude 18.71 (0.04) 18.71 (0.04)
G magnitude 19.02 (0.03) 19.05 19.02 19.02 (0.004) 19.05
BP magnitude 19.40 (0.03) 19.46 19.46
RP magnitude 18.48 (0.02) 18.45 18.45
Pan g magnitude 19.46 (0.01) 19.46 (0.01)
Pan r magnitude 18.97 (0.008) 18.97 (0.007)
Pan i magnitude 18.79 (0.005) 18.79 (0.007)
Pan z magnitude 18.75 (0.01) 18.75 (0.01)
Pan y magnitude 18.79 (0.03) 18.79 (0.03)
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.