WD 1425+495

All names: 2MASS J14265940+4921004, GALEX J142659.3+492100, Gaia EDR3 1507571286545131648, J1426+4921, Gaia DR3 1507571286545131648, SDSS J142659.40+492100.6, SDSS J142659.40+492100.5, Gaia DR2 1507571286545131648, WDJ142659.43+492100.45, WD 1425+495, TIC 441711248, CSO 649

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 14 26 59.26 (0.04) 14 26 59.27 (0.04) 14 26 59.27 (0.04) 14 26 59.26 14 26 59.43 (0.04) 14 26 59.27 14 26 59.28
Declination 49 21 01.18 (0.04) 49 21 01.15 (0.04) 49 21 01.15 (0.04) 49 21 01.18 49 21 00.46 (0.04) 49 21 01.15 49 20 58.92
Spectral type DC DC DC DC DC DC DC DC DC7.3
Effective temperature [K] 6390.0 (19) 6760.0 (75) 6392.0 (16) 6771.5 (49) 6910.0 6651.0 6094.0 (57)
log(g) [cgs] 8.18 (0.004) 8.34 (0.03) 8.17 (0.005) 8.35 (0.02) 8.42 8.31 8.17 (0.01)
Mass [M] 0.684 (0.004) 0.794 (0.02) 0.68 (0.004) 0.86 0.774 0.678 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 2.9600 3.5900 3.4250
log(H/He) -3.2 -3.2
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] 29.51 (0.05) 29.51 (0.05) 29.49 (0.05) 29.49 (0.05) 29.49 (0.05) 29.51 29.50 (0.05) 29.49 (0.05)
Distance [pc] 33.89 (0.05) 33.89 (0.06) 33.91 (0.06) 33.91 (0.06) 33.91 (0.06) 33.89 33.89 (0.05) 33.91 (0.06)
Composition He He
Proper motion (right ascension) [mas/yr] -100.4447348 (0.04) -100.5073155 (0.08) -100.445 (0.04) -100.5073155
Proper motion (declination) [mas/yr] 45.06697392 (0.05) 45.09478411 (0.08) 45.067 (0.05) 45.09478411
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.00
V magnitude
R magnitude
I magnitude
J magnitude 16.13 (0.09) 16.13 (0.09)
H magnitude 15.87 (0.2) 15.87 (0.2)
K magnitude
u magnitude 17.57 (0.01) 17.56 (0.01) 17.56 (0.01) 17.48
g magnitude 16.95 (0.004) 16.95 (0.004) 16.93
r magnitude 16.75 (0.004) 16.75 (0.004) 16.75
i magnitude 16.70 (0.005) 16.70 (0.005) 16.68
z magnitude 16.75 (0.01) 16.75 (0.01) 16.77
G magnitude 16.74 (0.005) 16.76 16.76 16.74 16.74 (0.003) 16.76
BP magnitude 16.94 (0.005) 16.93 16.93
RP magnitude 16.40 (0.005) 16.41 16.41
Pan g magnitude 16.96 (0.003) 16.96 (0.003)
Pan r magnitude 16.75 (0.003) 16.75 (0.003)
Pan i magnitude 16.73 (0.003) 16.73 (0.004)
Pan z magnitude 16.77 (0.002) 16.77 (0.002)
Pan y magnitude 16.83 (0.007) 16.83 (0.005)
E(B-V) 0.003

* 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.