Gaia DR2 2087569060381096960

All names: Lan 83, WDJ201115.28+491037.78, Gaia DR3 2087569060381096960, LSPM J2011+4910, Gaia DR2 2087569060381096960, Gaia EDR3 2087569060381096960, J2011+4910, USNO-B1.0 1391-00339824

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Jewett et al. 2024 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 20 11 15.52 (0.06) 20 11 15.51 20 11 15.52 20 11 15.28 (0.06) 20 11 15.51
Declination 49 10 39.08 (0.06) 49 10 39.04 49 10 39.08 49 10 37.78 (0.06) 49 10 39.04
Spectral type DQ DB DQ
Effective temperature [K] 12789.0 (111) 13684.0 13554.0 14395.0 (372)
log(g) [cgs] 8.88 8.94 8.90 8.95 (0.02)
Mass [M] 1.132 (0.005) 1.17 1.14 1.166 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 1.4700 (0.03) 1.3190 1.2520
log(H/He) -2.14
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] 13.53 (0.06) 13.55 (0.08) 13.53 13.53 (0.06) 13.55 (0.08)
Distance [pc] 73.92 (0.3) 73.79 (0.5) 73.92 73.92 (0.3) 73.79 (0.5)
Composition He
Proper motion (right ascension) [mas/yr] 144.1988044 (0.08) 144.3645255 (0.2) 144.199 (0.08) 144.3645255
Proper motion (declination) [mas/yr] 81.35853942 (0.07) 81.20090215 (0.2) 81.359 (0.07) 81.20090215
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 20.50
V magnitude
R magnitude 17.30
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 17.34 (0.005) 17.38 17.34 17.34 (0.003) 17.38
BP magnitude 17.32 (0.005) 17.28 17.28
RP magnitude 17.44 (0.008) 17.41 17.41
Pan g magnitude 17.30 (0.006)
Pan r magnitude 17.50 (0.003)
Pan i magnitude 17.76 (0.006)
Pan z magnitude 17.97 (0.005)
Pan y magnitude 18.12 (0.01)
E(B-V) 0.005

* 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.