SDSS J092111.11+414707.5

All names: SDSS J092111.11+414707.5, GALEX J092111.1+414708, Gaia DR3 815904771035152128, Gaia EDR3 815904771035152128, SDSS J092111.11+414707.4, Gaia DR2 815904771035152128, WD 0917+419

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 21 11.10 (0.2) 09 21 11.12 09 21 11.10 (0.3) 09 21 11.10 09 21 11.12 (0.2) 09 21 11.12 09 21 11.35 09 21 11.11
Declination 41 47 07.34 (0.2) 41 47 07.55 41 47 07.34 (0.3) 41 47 07.34 41 47 07.55 (0.2) 41 47 07.51 41 47 01.68 41 47 07.50
Spectral type DA DA DA DA_auto DA DA DA
Effective temperature [K] 14699.0 16245.0 (1037) 14245.0 (374) 14400.0 (411)
log(g) [cgs] 8.37 8.37 (0.1) 7.94 (0.08) 8.05 (0.08)
Mass [M] 0.843 0.846 (0.09) 0.637 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 0.3779
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] 3.23 (0.3) 3.43 (0.5) 3.23 3.23 (0.3)
Distance [pc] 309.52 (28) 291.13 (40) 309.52 309.52 (28)
Composition H
Proper motion (right ascension) [mas/yr] -15.98611122 (0.3) -16.35598856 (0.6) -15.986 (0.3) -12.7
Proper motion (declination) [mas/yr] -13.37624176 (0.2) -12.85041064 (0.6) -13.376 (0.2) -10.7
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.43 (0.02) 19.43 (0.02) 19.48 (0.03) 19.48 19.47 (0.03)
g magnitude 19.14 (0.01) 19.14 (0.01) 19.18 (0.03) 19.18 19.18 (0.03)
r magnitude 19.37 (0.01) 19.37 (0.01) 19.38 (0.02) 19.38 19.37 (0.02)
i magnitude 19.66 (0.02) 19.66 (0.02) 19.67 (0.03) 19.67 19.66 (0.03)
z magnitude 19.96 (0.09) 19.96 (0.09) 19.95 (0.08) 19.95 19.95 (0.08)
G magnitude 19.26 (0.02) 19.29 19.26 19.26 (0.003)
BP magnitude 19.25 (0.02) 19.27
RP magnitude 19.40 (0.04) 19.35
Pan g magnitude 19.14 (0.01)
Pan r magnitude 19.37 (0.01)
Pan i magnitude 19.63 (0.01)
Pan z magnitude 19.91 (0.02)
Pan y magnitude 19.88 (0.08)
E(B-V) 0.017

* 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.