HS 2100+0650

All names: Gaia DR3 1737015070927018368, Gaia DR2 1737015070927018368, SDSS J210247.63+070227.7, HS 2100+0650, HS2100+0650, GALEX J210247.6+070228

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 21 02 47.65 21 02 47.64 (0.06)
Declination 07 02 28.52 07 02 27.87 (0.04)
Spectral type sdO sdO
Effective temperature [K] 45000.0
log(g) [cgs] 5.50
Mass [M]
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.37 (0.1) 0.47 (0.08)
Distance [pc] 2732.99 (946) 2111.49 (361)
Composition
Proper motion (right ascension) [mas/yr] -4.201 (0.2) -4.025 (0.09)
Proper motion (declination) [mas/yr] -8.771 (0.2) -8.887 (0.06)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 16.30 (0.006) 16.30 (0.006)
g magnitude 16.69 (0.004) 16.69 (0.004)
r magnitude 17.19 (0.005) 17.19 (0.005)
i magnitude 17.53 (0.007) 17.53 (0.007)
z magnitude 17.80 (0.02) 17.80 (0.02)
G magnitude 16.97 (0.002) 16.93 (0.003)
BP magnitude 16.74 (0.006)
RP magnitude 17.23 (0.009)
Pan g magnitude 16.78 (0.004)
Pan r magnitude 17.19 (0.004)
Pan i magnitude 17.55 (0.003)
Pan z magnitude 17.82 (0.006)
Pan y magnitude 18.02 (0.009)
E(B-V) 0.058

* 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.