WD 0852+187

All names: USNO-B1.0 1085-00170473, Gaia EDR3 660353214625345280, WD 0852+187, SDSS J085519.91+183324.0, Gaia DR3 660353214625345280, Gaia DR2 660353214625345280, SDSS J085519.91+183323.9

Parameter Unit Gaia EDR3 Gaia DR2 Stilism Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 08 55 19.90 (0.2) 08 55 19.90 (0.3) 08 55 19.90 08 55 19.93 (0.2) 08 55 19.10
Declination 18 33 23.67 (0.1) 18 33 23.69 (0.1) 18 33 23.67 18 33 24.12 (0.1) 18 33 24.48
Spectral type DC DC ?
Effective temperature [K] 10927.0 (547)
log(g) [cgs] 8.09 (0.1)
Mass [M☉] 0.635 (0.09)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 4.24 (0.3) 3.92 (0.3) 4.24 4.24 (0.3)
Distance [pc] 236.07 (15) 255.32 (22) 236.07 236.07 (15)
Composition
Proper motion (right ascension) [mas/yr] -31.71433383 (0.3) -31.76501457 (0.5) -31.714 (0.3)
Proper motion (declination) [mas/yr] -27.84281077 (0.2) -27.45937156 (0.4) -27.843 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.10
V magnitude
R magnitude 19.20
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 19.05 (0.02) 19.09 19.05 19.05 (0.003)
BP magnitude 19.11 (0.02) 19.00
RP magnitude 19.01 (0.04) 18.93
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.015

* 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.