Gaia DR2 4252064631569619712

All names: WDJ184907.50-073619.82, J1849-0736, Gaia DR3 4252064631569619712, WDJ18497.5-073619.82, Gaia EDR3 4252064631569619712, Gaia DR2 4252064631569619712

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Caron et al. 2023 Tremblay et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 18 49 07.44 (0.07) 18 49 07.44 18 49 07.44 18 49 07.50 (0.07) 18 49 07.44
Declination -07 36 20.33 (0.06) -07 36 20.32 -07 36 20.33 -07 36 19.82 (0.06) -07 36 20.32
Spectral type DC DC DC DC DC
Effective temperature [K] 6286.0 (91) 6341.0 (19) 6190.0 (110) 6401.0 6147.0 5419.0 (148)
log(g) [cgs] 8.19 (0.04) 8.18 (0.007) 8.15 (0.06) 8.28 8.15 7.97 (0.02)
Mass [M] 0.689 (0.03) 0.689 (0.006) 0.768 0.668 0.552 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 3.1500 3.5280 3.3230
log(H/He) -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] 28.47 (0.08) 28.47 (0.08) 28.53 (0.1) 28.53 (0.1) 28.47 28.47 (0.08) 28.53 (0.1)
Distance [pc] 35.12 (0.1) 35.12 (0.1) 35.05 (0.1) 35.05 (0.1) 35.12 35.12 (0.1) 35.05 (0.1)
Composition He
Proper motion (right ascension) [mas/yr] -57.88801265 (0.07) -57.93047997 (0.2) -57.888 (0.07) -57.93047997
Proper motion (declination) [mas/yr] -32.10528208 (0.06) -31.93790788 (0.1) -32.105 (0.06) -31.93790788
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 16.15 (0.01)
H magnitude 16.09 (0.02)
K magnitude 16.10 (0.03)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 16.85 (0.007) 16.87 16.85 16.85 (0.003) 16.87
BP magnitude 17.11 (0.007) 17.04 17.04
RP magnitude 16.47 (0.009) 16.42 16.42
Pan g magnitude 17.15 (0.003) 17.15 (0.003)
Pan r magnitude 16.89 (0.004) 16.89 (0.004)
Pan i magnitude 16.85 (0.005) 16.85 (0.004)
Pan z magnitude 16.83 (0.003) 16.83 (0.004)
Pan y magnitude 16.83 (0.01) 16.83 (0.01)
E(B-V) 0.001

* 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.