SDSS J222528.27+125441.1

All names: SDSS J222528.27+125441.2, SDSS J222528.27+125441.1, GALEX J222528.3+125441, Gaia DR3 2730846240950481024, Gaia EDR3 2730846240950481024, Gaia DR2 2730846240950481024, SDSS J222528.28+125441.1, SDSS J222528.28+125441.18

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Kepler et al. 2016 Simbad Vincent et al. 2023
Right ascension 22 25 28.28 (0.2) 22 25 28.28 22 25 28.28 (0.6) 22 25 28.28 (0.2)
Declination 12 54 41.24 (0.3) 12 54 41.24 12 54 41.24 (0.6) 12 54 41.23 (0.3)
Spectral type DA DA DA DA DA
Effective temperature [K] 40017.0 (841) 18893.0 40714.0 (605)
log(g) [cgs] 7.69 (0.1) 6.73 7.78 (0.06)
Mass [M] 0.53 (0.04) 0.224
log(Luminosity) [L] -0.17 (0.08)
Cooling age [Gyr] 0.0034 (0.0006)
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] 1.22 (0.2) 1.11 (0.4) 1.22 (0.2)
Distance [pc] 818.54 (158) 898.00 (353) 818.53 (158)
Composition H H
Proper motion (right ascension) [mas/yr] 3.811576728 (0.4) 4.25013978 (0.9) 3.812 (0.4)
Proper motion (declination) [mas/yr] 1.001621314 (0.3) 1.292807302 (0.9) 1.002 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.11 (0.01) 18.11 (0.02) 18.10 (0.01)
g magnitude 18.39 (0.007) 18.41 (0.02) 18.39 (0.007)
r magnitude 18.80 (0.01) 18.81 (0.02) 18.80 (0.01)
i magnitude 19.13 (0.01) 19.11 (0.02) 19.12 (0.01)
z magnitude 19.45 (0.05) 19.42 (0.06) 19.43 (0.06)
G magnitude 18.60 (0.03) 18.63 18.60 (0.004)
BP magnitude 18.51 (0.03) 18.44
RP magnitude 18.85 (0.04) 18.81
Pan g magnitude 18.43 (0.008)
Pan r magnitude 18.81 (0.005)
Pan i magnitude 19.13 (0.006)
Pan z magnitude 19.37 (0.03)
Pan y magnitude 19.49 (0.04)
E(B-V) 0.054

* 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.