Gaia DR2 712789886226437632

All names: USNO-B1.0 1221-00199548, LSPM J0852+3209, GALEX J085231.8+320945, Gaia DR2 712789886226437632, SDSS J085231.91+320945.9, WDJ085231.94+320946.30, SDSS J085231.90+320945.9, Gaia EDR3 712789886226437632, WDJ085231.94+320946.31, Gaia DR3 712789886226437632, J0852+3209

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 08 52 31.78 (0.1) 08 52 31.78 08 52 31.78 08 52 31.94 (0.1) 08 52 31.78
Declination 32 09 44.39 (0.07) 32 09 44.45 32 09 44.39 32 09 46.31 (0.07) 32 09 44.45
Spectral type DC DC DC DA DC
Effective temperature [K] 5653.0 (31) 5864.0 (30) 5652.0 (31) 6077.0 5821.0 6083.0 (71)
log(g) [cgs] 7.78 (0.02) 7.96 (0.02) 7.80 (0.02) 8.09 7.94 8.06 (0.03)
Mass [M] 0.446 (0.01) 0.546 (0.02) 0.458 (0.02) 0.643 0.533 0.628 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 2.6000 2.6790 2.6000
log(H/He) -5.0 -5
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] 16.24 (0.1) 16.46 (0.2) 16.46 (0.2) 16.24 16.24 (0.1) 16.46 (0.2)
Distance [pc] 61.59 (0.6) 60.75 (0.8) 60.74 (0.8) 61.59 61.59 (0.6) 60.74 (0.8)
Composition He
Proper motion (right ascension) [mas/yr] -126.7013809 (0.1) -126.9040444 (0.3) -126.701 (0.1) -126.9040444
Proper motion (declination) [mas/yr] -120.1707011 (0.1) -120.1347205 (0.2) -120.171 (0.1) -120.1347205
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.10
V magnitude
R magnitude 18.00
I magnitude
J magnitude 17.16 (0.02)
H magnitude
K magnitude
u magnitude 19.19 (0.02) 19.12 (0.02) 19.12 (0.02)
g magnitude 18.35 (0.007) 18.35 (0.007)
r magnitude 18.01 (0.007) 18.01 (0.007)
i magnitude 17.88 (0.007) 17.88 (0.007)
z magnitude 17.83 (0.02) 17.83 (0.02)
G magnitude 18.01 (0.02) 18.03 18.01 18.01 (0.003) 18.03
BP magnitude 18.33 (0.02) 18.34 18.34
RP magnitude 17.58 (0.01) 17.60 17.60
Pan g magnitude 18.32 (0.005) 18.32 (0.005)
Pan r magnitude 18.01 (0.006) 18.01 (0.007)
Pan i magnitude 17.89 (0.006) 17.89 (0.006)
Pan z magnitude 17.89 (0.008) 17.89 (0.009)
Pan y magnitude 17.90 (0.01) 17.90 (0.01)
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.