WD 0002+025

All names: ZYCJ 0002+025B, Gaia DR2 2739206274531999744, LBQS 0002+0235, Gaia DR3 2739206274531999744, SDSS J000515.10+025149.6, Gaia EDR3 2739206274531999744, USNO-B1.0 0928-00000837, WD 0002+025, GALEX J000515.1+025150, PB 5717

Parameter Unit Gaia EDR3 Gaia DR2 Stilism Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 00 05 15.11 (0.2) 00 05 15.11 (0.2) 00 05 15.11 00 05 15.10 (0.2) 00 05 14.81
Declination 02 51 49.45 (0.2) 02 51 49.46 (0.1) 02 51 49.45 02 51 49.92 (0.2) 02 51 48.24
Spectral type DC DQ DQ
Effective temperature [K] 10250.0 (379)
log(g) [cgs] 8.10 (0.06)
Mass [M☉] 0.644 (0.06)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 7.08 (0.2) 6.84 (0.3) 7.08 7.08 (0.2)
Distance [pc] 141.29 (4) 146.23 (6) 141.29 141.29 (4)
Composition
Proper motion (right ascension) [mas/yr] 17.8119874 (0.2) 17.0068086 (0.6) 17.812 (0.2)
Proper motion (declination) [mas/yr] -29.57515383 (0.1) -29.69769347 (0.3) -29.575 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.70
V magnitude
R magnitude 18.30
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 18.15 (0.008) 18.18 18.15 18.15 (0.003)
BP magnitude 18.19 (0.008) 18.14
RP magnitude 18.09 (0.02) 18.05
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
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.