SDSS J210813.70+101113.1

All names: SDSS J210813.70+101113.1, Gaia EDR3 1744487966128152832, WD 2105+099, SDSS J210813.70+101113.2, Gaia DR3 1744487966128152832, Gaia DR2 1744487966128152832, SDSS J210813.69+101113.1, GALEX J210813.7+101113

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 21 08 13.70 (0.2) 21 08 13.70 21 08 13.70 (0.3) 21 08 13.70 (0.2) 21 08 13.70 21 08 13.63 21 08 13.70
Declination 10 11 13.16 (0.1) 10 11 13.15 10 11 13.16 (0.3) 10 11 13.12 (0.1) 10 11 13.13 10 11 09.96 10 11 13.17
Spectral type DA DA DA DA_auto DA DA DA
Effective temperature [K] 9865.0 11360.0 (220) 11009.0 (137) 11067.0 (163)
log(g) [cgs] 7.39 8.12 (0.1) 8.20 (0.09) 8.15 (0.1)
Mass [M] 0.317 0.68 (0.07) 0.688 (0.06)
log(Luminosity) [L]
Cooling age [Gyr] 0.3402 0.5370
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] 2.52 (0.3) 2.68 (0.4) 2.52 (0.3)
Distance [pc] 396.51 (43) 373.61 (58) 396.51 (43)
Composition H H
Proper motion (right ascension) [mas/yr] 7.886067498 (0.3) 8.736265443 (0.8) 7.886 (0.3) 8.8
Proper motion (declination) [mas/yr] 2.444289148 (0.2) 1.545728858 (1) 2.444 (0.2) 2.4
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.73 (0.03) 19.73 (0.03) 19.79 (0.04) 19.79 19.77 (0.04)
g magnitude 19.19 (0.01) 19.19 (0.01) 19.23 (0.02) 19.22 19.21 (0.02)
r magnitude 19.28 (0.01) 19.27 (0.01) 19.32 (0.02) 19.32 19.30 (0.02)
i magnitude 19.41 (0.02) 19.41 (0.02) 19.41 (0.02) 19.40 19.38 (0.02)
z magnitude 19.67 (0.09) 19.67 (0.09) 19.63 (0.09) 19.62 19.60 (0.09)
G magnitude 19.21 (0.03) 19.25 19.21 (0.004)
BP magnitude 19.27 (0.03) 19.26
RP magnitude 19.13 (0.04) 19.05
Pan g magnitude 19.21 (0.01)
Pan r magnitude 19.31 (0.01)
Pan i magnitude 19.48 (0.01)
Pan z magnitude 19.63 (0.03)
Pan y magnitude 19.69 (0.06)
E(B-V) 0.045

* 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.