SDSS J234401.32+465644.3

All names: Gaia DR2 1939233465639652096, Gaia DR3 1939233465639652096, SDSS J234401.31+465644.3, Gaia EDR3 1939233465639652096, SDSS J234401.32+465644.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013
Right ascension 23 44 01.31 (0.3) 23 44 01.32 23 44 01.31 (0.5) 23 44 01.32 (0.3) 23 44 01.32
Declination 46 56 44.25 (0.3) 46 56 44.35 46 56 44.26 (0.3) 46 56 44.37 (0.3) 46 56 44.34
Spectral type DA DA DA DA
Effective temperature [K] 39703.0 (2539) 21830.0 41722.0 (2003)
log(g) [cgs] 7.90 (0.3) 6.79 7.90 (0.2)
Mass [M] 0.62 (0.1) 0.231 0.62 (0.09)
log(Luminosity) [L] -0.32 (0.2)
Cooling age [Gyr] 0.0038 (0.0009)
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] -0.12 (0.5) 0.54 (0.6) 0.54 (0.6)
Distance [pc] 1846.68 (2183) 1846.72 (2183)
Composition H H
Proper motion (right ascension) [mas/yr] -6.549992791 (0.4) -6.513252829 (0.9) -6.55 (0.4)
Proper motion (declination) [mas/yr] -6.963609944 (0.3) -7.435447878 (0.7) -6.964 (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 19.53 (0.03) 19.52 (0.03) 19.52 (0.03)
g magnitude 19.80 (0.01) 19.84 (0.02) 19.84 (0.02)
r magnitude 20.23 (0.02) 20.27 (0.02) 20.27 (0.02)
i magnitude 20.50 (0.04) 20.54 (0.04) 20.54 (0.04)
z magnitude 20.68 (0.2) 20.72 (0.2) 20.72 (0.2)
G magnitude 20.00 (0.07) 20.06 20.00 (0.005)
BP magnitude 20.09 (0.07) 19.82
RP magnitude 20.17 (0.1) 20.14
Pan g magnitude 19.84 (0.01)
Pan r magnitude 20.26 (0.008)
Pan i magnitude 20.64 (0.05)
Pan z magnitude 20.79 (0.05)
Pan y magnitude 20.21 (0.2)
E(B-V) 0.117

* 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.