SDSS J224452.43+303725.3

All names: SDSS J224452.43+303725.3, Gaia DR2 1888082398010126848, SDSS J224452.42+303725.1, Gaia EDR3 1888082398010126848, SDSS J224452.42+303725.0, Gaia DR3 1888082398010126848

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 22 44 52.42 (0.1) 22 44 52.43 22 44 52.42 (0.2) 22 44 52.44 (0.1) 22 44 52.43
Declination 30 37 24.96 (0.2) 30 37 25.17 30 37 24.98 (0.2) 30 37 25.52 (0.2) 30 37 25.33
Spectral type DA DA DA DA
Effective temperature [K] 14685.0 18435.0 (364)
log(g) [cgs] 7.58 7.85 (0.07)
Mass [M] 0.405 0.546 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.1145
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] 1.94 (0.3) 2.21 (0.4) 1.94 (0.3)
Distance [pc] 514.62 (70) 452.02 (90) 514.62 (70)
Composition H
Proper motion (right ascension) [mas/yr] -17.11845866 (0.2) -16.75485341 (0.5) -17.118 (0.2)
Proper motion (declination) [mas/yr] -34.48170284 (0.3) -35.02125221 (0.7) -34.482 (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 19.05 (0.02) 19.05 (0.02) 19.01 (0.03)
g magnitude 18.88 (0.009) 18.88 (0.009) 18.85 (0.01)
r magnitude 19.21 (0.01) 19.21 (0.01) 19.23 (0.02)
i magnitude 19.51 (0.02) 19.51 (0.02) 19.48 (0.02)
z magnitude 19.64 (0.09) 19.64 (0.09) 19.61 (0.09)
G magnitude 19.03 (0.02) 19.07 19.03 (0.004)
BP magnitude 18.99 (0.02) 18.96
RP magnitude 19.15 (0.04) 19.10
Pan g magnitude 18.90 (0.008)
Pan r magnitude 19.19 (0.006)
Pan i magnitude 19.44 (0.008)
Pan z magnitude 19.72 (0.03)
Pan y magnitude 19.78 (0.09)
E(B-V) 0.056

* 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.