Gaia DR2 2169971345155578752

All names: Gaia DR2 2169971345155578752, LSPM J2048+5110, J2048+5110, Gaia DR3 2169971345155578752, USNO-B1.0 1411-00370405, Gaia EDR3 2169971345155578752, WDJ204832.02+511047.25

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Caron et al. 2023 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 20 48 31.60 (0.07) 20 48 31.61 (0.09) 20 48 31.61 20 48 31.60 20 48 32.02 (0.07) 20 48 31.61
Declination 51 10 44.29 (0.07) 51 10 44.39 (0.1) 51 10 44.39 51 10 44.29 51 10 47.26 (0.07) 51 10 44.39
Spectral type DC DC DC DC DC DC
Effective temperature [K] 4902.0 (67) 4986.0 (17) 4837.9 (84) 4840.0 (80) 4853.0 4533.0 4891.0 (41)
log(g) [cgs] 7.94 (0.06) 8.05 (0.009) 7.92 (0.07) 7.92 (0.07) 7.94 7.71 7.95 (0.02)
Mass [M] 0.542 (0.03) 0.612 (0.008) 0.542 0.408 0.549 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 6.7200 5.6550 4.1470
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 25.82 (0.09) 25.82 (0.09) 25.97 (0.1) 25.97 (0.1) 25.97 (0.1) 25.82 25.82 (0.09) 25.97 (0.1)
Distance [pc] 38.73 (0.1) 38.73 (0.1) 38.51 (0.2) 38.51 (0.2) 38.51 (0.2) 38.73 38.73 (0.1) 38.51 (0.2)
Composition H
Proper motion (right ascension) [mas/yr] -246.2498331 (0.1) -246.588123 (0.2) -246.25 (0.1) -246.588123
Proper motion (declination) [mas/yr] -185.0730745 (0.1) -185.009075 (0.2) -185.073 (0.1) -185.009075
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.80
V magnitude
R magnitude 16.40
I magnitude
J magnitude 16.56 (0.01)
H magnitude 16.29 (0.01)
K magnitude 16.25 (0.03)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 17.84 (0.01) 17.86 17.86 17.84 17.84 (0.003) 17.86
BP magnitude 18.36 (0.01) 18.36 18.36
RP magnitude 17.20 (0.009) 17.19 17.19
Pan g magnitude 18.49 (0.008) 18.49 (0.008)
Pan r magnitude 17.82 (0.002) 17.82 (0.002)
Pan i magnitude 17.54 (0.006) 17.54 (0.005)
Pan z magnitude 17.44 (0.004) 17.44 (0.004)
Pan y magnitude 17.41 (0.006) 17.41 (0.006)
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.