Gaia DR2 3673479966286848640

All names: WDJ142150.18+070953.61, WDJ142150.18+070953.60, GALEX J142150.0+070953, LSPM J1421+0709, USNO-B1.0 0971-00283160, SDSS J142150.11+070953.6, Gaia EDR3 3673479966286848640, SDSS J142150.10+070953.6, J1421+0709, Gaia DR2 3673479966286848640, Gaia DR3 3673479966286848640

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 14 21 49.83 (0.2) 14 21 49.84 14 21 49.83 14 21 50.18 (0.2) 14 21 49.84
Declination 07 09 53.83 (0.2) 07 09 53.82 07 09 53.83 07 09 53.61 (0.2) 07 09 53.82
Spectral type DC DC DC DA: DC
Effective temperature [K] 6244.0 (54) 5980.0 (53) 5932.0 (52) 6454.0 6220.0 6533.0 (183)
log(g) [cgs] 8.13 (0.03) 7.97 (0.05) 7.94 (0.05) 8.22 8.11 8.26 (0.06)
Mass [M] 0.653 (0.03) 0.551 (0.04) 0.536 (0.04) 0.732 0.638 0.754 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 2.4300 3.0720 2.7710
log(H/He) -3.0 -3
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] 11.13 (0.3) 11.02 (0.4) 11.02 (0.4) 11.13 11.13 (0.3) 11.02 (0.4)
Distance [pc] 89.81 (2) 90.74 (3) 90.72 (3) 89.81 89.81 (2) 90.72 (3)
Composition He He
Proper motion (right ascension) [mas/yr] -329.3721593 (0.3) -329.0886069 (0.6) -329.372 (0.3) -329.0886069
Proper motion (declination) [mas/yr] 13.22996895 (0.3) 13.59024079 (0.5) 13.23 (0.3) 13.59024079
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.10
V magnitude
R magnitude 18.80
I magnitude
J magnitude 18.11 (0.03)
H magnitude 17.97 (0.08)
K magnitude 17.97 (0.1)
u magnitude 19.84 (0.03) 19.88 (0.04) 19.83 (0.04)
g magnitude 19.12 (0.01) 19.14 (0.01)
r magnitude 18.85 (0.01) 18.83 (0.01)
i magnitude 18.73 (0.01) 18.77 (0.01)
z magnitude 18.79 (0.03) 18.80 (0.04)
G magnitude 18.85 (0.04) 18.89 18.85 18.85 (0.004) 18.89
BP magnitude 19.07 (0.04) 19.13 19.13
RP magnitude 18.46 (0.04) 18.46 18.46
Pan g magnitude 19.10 (0.005) 19.10 (0.006)
Pan r magnitude 18.84 (0.008) 18.84 (0.008)
Pan i magnitude 18.78 (0.007) 18.78 (0.01)
Pan z magnitude 18.79 (0.01) 18.79 (0.01)
Pan y magnitude 18.82 (0.03) 18.82 (0.03)
E(B-V) 0.008

* 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.