Gaia DR2 4095056359580563328

All names: Gaia EDR3 4095056359580563328, WDJ180741.4-195558.17, Gaia DR3 4095056359580563328, SDSS J180741.39-195558.2, Gaia DR2 4095056359580563328, WDJ180741.40-195558.17, J1807-1955

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 18 07 41.38 (0.1) 18 07 41.38 18 07 41.38 18 07 41.40 (0.1) 18 07 41.38
Declination -19 55 58.46 (0.1) -19 55 58.45 -19 55 58.46 -19 55 58.18 (0.1) -19 55 58.45
Spectral type DC DC DC DC: DC
Effective temperature [K] 8461.0 (50) 8750.0 (49) 8461.0 (50) 9283.0 9000.0 8831.0 (189)
log(g) [cgs] 8.33 (0.01) 8.41 (0.01) 8.33 (0.01) 8.59 8.51 8.43 (0.03)
Mass [M] 0.788 (0.01) 0.841 (0.01) 0.787 (0.01) 0.973 0.908 0.857 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 1.8600 2.1580 2.0540
log(H/He) -4.0 -4.2 -4
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] 16.13 (0.2) 16.12 (0.2) 16.12 (0.2) 16.13 16.13 (0.2) 16.12 (0.2)
Distance [pc] 62.00 (0.6) 62.03 (0.8) 62.03 (0.8) 62.00 62.00 (0.6) 62.03 (0.8)
Composition He
Proper motion (right ascension) [mas/yr] -17.83628566 (0.2) -18.09381284 (0.3) -17.836 (0.2) -18.09381284
Proper motion (declination) [mas/yr] -17.56101915 (0.1) -17.86112953 (0.2) -17.561 (0.1) -17.86112953
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.23 (0.03)
H magnitude 17.58 (0.09)
K magnitude 17.36 (0.1)
u magnitude 17.69 (0.02) 17.68 (0.01) 17.68 (0.01)
g magnitude 17.32 (0.005) 17.32 (0.005)
r magnitude 17.31 (0.006) 17.31 (0.006)
i magnitude 17.46 (0.008) 17.46 (0.008)
z magnitude 17.65 (0.03) 17.65 (0.03)
G magnitude 17.32 (0.009) 17.34 17.32 17.32 (0.003) 17.34
BP magnitude 17.39 (0.009) 17.37 17.37
RP magnitude 17.21 (0.01) 17.25 17.25
Pan g magnitude 17.38 (0.007) 17.38 (0.006)
Pan r magnitude 17.41 (0.005) 17.41 (0.004)
Pan i magnitude 17.52 (0.0002) 17.52 (0.0002)
Pan z magnitude 17.61 (0.001) 17.61 (0.001)
Pan y magnitude 17.78 (0.03) 17.78 (0.03)
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.