Gaia DR2 2073772770741915264

All names: USNO-B1.0 1304-00356672, WDJ195151.76+402629.07, Gaia DR2 2073772770741915264, Gaia EDR3 2073772770741915264, J1951+4026, LSPM J1951+4026, WDJ195151.76+402629.06, Gaia DR3 2073772770741915264

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Caron et al. 2023 Bergeron et al. 2022 McCleery et al. 2020 Tremblay et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 19 51 51.74 (0.08) 19 51 51.74 (0.09) 19 51 51.74 19 51 51.74 19 51 51.76 (0.08) 19 51 51.74
Declination 40 26 24.90 (0.09) 40 26 25.03 (0.1) 40 26 25.03 40 26 24.90 40 26 29.07 (0.09) 40 26 25.03
Spectral type DC DC DC DC DC DC: DC
Effective temperature [K] 4953.0 (61) 4196.0 (37) 4034.0 (38) 5046.3 (80) 5050.0 (80) 5288.0 5012.0 5115.0 (54)
log(g) [cgs] 8.13 (0.05) 7.88 (0.008) 8.22 (0.06) 8.22 (0.06) 8.41 8.25 8.28 (0.02)
Mass [M] 0.651 (0.03) 0.5 (0.005) 0.435 (0.004) 0.85 0.731 0.764 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 6.6200 6.0060 7.6260 6.9290
log(H/He) -1.41 -1.42
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] 25.03 (0.1) 25.03 (0.1) 25.12 (0.1) 25.12 (0.1) 25.12 (0.1) 25.03 25.03 (0.1) 25.12 (0.1)
Distance [pc] 39.95 (0.2) 39.95 (0.2) 39.81 (0.2) 39.81 (0.2) 39.81 (0.2) 39.95 39.95 (0.2) 39.81 (0.2)
Composition He He
Proper motion (right ascension) [mas/yr] -13.23634398 (0.1) -13.11001318 (0.2) -13.236 (0.1) -13.11001318
Proper motion (declination) [mas/yr] -260.7007588 (0.1) -260.5453304 (0.2) -260.701 (0.1) -260.5453304
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.90
V magnitude
R magnitude 17.70
I magnitude
J magnitude 17.59 (0.05)
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 18.11 (0.01) 18.14 18.14 18.11 18.11 (0.003) 18.14
BP magnitude 18.64 (0.01) 18.60 18.60
RP magnitude 17.53 (0.009) 17.51 17.51
Pan g magnitude 18.76 (0.01) 18.76 (0.009)
Pan r magnitude 18.04 (0.01) 18.04 (0.01)
Pan i magnitude 17.83 (0.005) 17.83 (0.005)
Pan z magnitude 17.87 (0.01) 17.87 (0.01)
Pan y magnitude 18.01 (0.01) 18.01 (0.01)
E(B-V) 0.003

* 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.