WD 0257-046

All names: USNO-B1.0 0855-00028256, Gaia DR2 5185910261001126400, [SRH2004] 20, [OHD2001] WD J0300-044, Gaia EDR3 5185910261001126400, WD 0257-046, Gaia DR3 5185910261001126400

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Gaia DR2 Stilism Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 03 00 23.98 (0.3) 03 00 23.97 (0.4) 03 00 23.67 (0.3) 03 00 23.02
Declination -04 25 29.97 (0.4) -04 25 29.82 (0.5) -04 25 25.10 (0.4) -04 25 20.64
Spectral type DC DC
Effective temperature [K]
log(g) [cgs]
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 7.78 (0.4) 7.62 (0.5) 7.78 (0.4)
Distance [pc] 128.59 (6) 131.18 (9) 128.59 (6)
Composition
Proper motion (right ascension) [mas/yr] 286.7798211 (0.4) 288.192 (0.9) 286.78 (0.4)
Proper motion (declination) [mas/yr] -304.5334545 (0.5) -303.838 (1) -304.533 (0.5)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 20.70
V magnitude 19.86
R magnitude 19.40
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 19.68 (0.08) 19.72 19.68 (0.005)
BP magnitude 19.94 (0.08) 20.06
RP magnitude 19.26 (0.06) 19.13
Pan g magnitude 20.04 (0.03)
Pan r magnitude 19.66 (0.01)
Pan i magnitude 19.53 (0.006)
Pan z magnitude 19.52 (0.02)
Pan y magnitude 19.45 (0.04)
E(B-V) 0.004

* 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.