SDSS J084553.81+255209.4

All names: Gaia EDR3 691055324484108800, Gaia DR3 691055324484108800, SDSS J084553.81+255209.4, Gaia DR2 691055324484108800, SDSS J084553.80+255209.4, GALEX J084553.8+255209

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 45 53.81 (0.7) 08 45 53.81 08 45 53.81 (1) 08 45 53.80 (0.7) 08 45 53.81
Declination 25 52 09.23 (0.3) 25 52 09.39 25 52 09.24 (0.9) 25 52 09.47 (0.3) 25 52 09.40
Spectral type DA DA DA DA
Effective temperature [K] 19932.0 17272.0 (829)
log(g) [cgs] 8.07 7.61 (0.2)
Mass [M] 0.662 0.461 (0.08)
log(Luminosity) [L]
Cooling age [Gyr] 0.0825
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] 0.66 (0.7) 1.33 (1) 0.66 (0.7)
Distance [pc] 1522.89 (1723) 753.56 (664) 1523.00 (1723)
Composition H
Proper motion (right ascension) [mas/yr] 3.486166149 (0.9) 3.6695622 (2) 3.486 (0.9)
Proper motion (declination) [mas/yr] -15.15690376 (0.7) -14.05930903 (2) -15.157 (0.7)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.44 (0.06) 20.45 (0.06) 20.45 (0.06)
g magnitude 20.25 (0.02) 20.26 (0.02) 20.26 (0.02)
r magnitude 20.62 (0.04) 20.64 (0.04) 20.64 (0.04)
i magnitude 20.83 (0.06) 20.86 (0.05) 20.86 (0.05)
z magnitude 21.10 (0.3) 21.17 (0.3) 21.17 (0.3)
G magnitude 20.48 (0.06) 20.53 20.48 (0.006)
BP magnitude 20.47 (0.06) 20.38
RP magnitude 20.52 (0.09) 20.40
Pan g magnitude 20.31 (0.02)
Pan r magnitude 20.60 (0.02)
Pan i magnitude 20.91 (0.03)
Pan z magnitude 21.03 (0.05)
Pan y magnitude
E(B-V) 0.026

* 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.