Gaia DR2 556746302659364608

All names: Gaia EDR3 556746302659364608, LSPM J0449+8053, WDJ044933.49+805338.77, USNO-B1.0 1708-00019866, Gaia DR2 556746302659364608, WDJ044933.49+805338.76, Gaia DR3 556746302659364608

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 04 49 34.71 (0.08) 04 49 34.67 04 49 34.71 04 49 33.48 (0.08) 04 49 34.67
Declination 80 53 34.87 (0.08) 80 53 35.00 80 53 34.87 80 53 38.77 (0.08) 80 53 35.00
Spectral type DC: DA
Effective temperature [K] 6331.0 6077.0 5565.0 (111)
log(g) [cgs] 8.11 7.97 7.83 (0.03)
Mass [M] 0.655 0.552 0.473 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 2.4780 2.2650
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 16.04 (0.09) 15.87 (0.1) 16.04 16.04 (0.09) 15.87 (0.1)
Distance [pc] 62.34 (0.3) 63.01 (0.5) 62.34 62.34 (0.3) 63.01 (0.5)
Composition
Proper motion (right ascension) [mas/yr] 182.0587999 (0.1) 181.5826561 (0.2) 182.059 (0.1) 181.5826561
Proper motion (declination) [mas/yr] -243.6405185 (0.1) -243.497203 (0.3) -243.641 (0.1) -243.497203
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.20
V magnitude
R magnitude 17.90
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 17.93 (0.01) 17.95 17.93 17.93 (0.003) 17.95
BP magnitude 18.20 (0.01) 18.19 18.19
RP magnitude 17.53 (0.01) 17.54 17.54
Pan g magnitude 18.22 (0.005)
Pan r magnitude 17.96 (0.01)
Pan i magnitude 17.89 (0.007)
Pan z magnitude 17.88 (0.02)
Pan y magnitude 17.88 (0.008)
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.