SDSS J124439.63+555742.4

All names: SDSS J124439.64+555742.4, Gaia EDR3 1571396145535307904, WD 1242+562, Gaia DR3 1571396145535307904, Gaia DR2 1571396145535307904, SDSS J124439.63+555742.4, SDSS J124439.64+555742.5

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 44 39.55 (0.2) 12 44 39.63 12 44 39.56 (0.3) 12 44 39.64 (0.2) 12 44 39.64 12 44 39.00 12 44 39.64
Declination 55 57 42.31 (0.2) 55 57 42.42 55 57 42.31 (0.3) 55 57 42.38 (0.2) 55 57 42.45 55 57 36.00 55 57 42.46
Spectral type DA DA DA_auto DA DA DA
Effective temperature [K] 11916.0 12613.0 (540) 12481.0 (467)
log(g) [cgs] 8.22 7.57 (0.2) 7.73 (0.1)
Mass [M] 0.738 0.483 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.5204
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] 2.95 (0.2) 3.29 (0.4) 2.95 (0.2)
Distance [pc] 338.44 (28) 303.80 (37) 338.44 (28)
Composition H
Proper motion (right ascension) [mas/yr] -48.68821318 (0.2) -49.20787576 (0.5) -48.688 (0.2)
Proper motion (declination) [mas/yr] -4.350876203 (0.2) -4.328960171 (0.5) -4.351 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.78 (0.04) 19.78 (0.04) 19.75 (0.04) 19.74 19.77 (0.04)
g magnitude 19.36 (0.01) 19.36 (0.01) 19.39 (0.02) 19.38 19.37 (0.02)
r magnitude 19.56 (0.02) 19.56 (0.02) 19.57 (0.02) 19.56 19.56 (0.02)
i magnitude 19.79 (0.02) 19.79 (0.02) 19.78 (0.03) 19.78 19.77 (0.03)
z magnitude 20.05 (0.09) 20.05 (0.09) 20.10 (0.09) 20.10 20.08 (0.09)
G magnitude 19.45 (0.03) 19.49 19.45 (0.004)
BP magnitude 19.44 (0.03) 19.49
RP magnitude 19.49 (0.09) 19.46
Pan g magnitude 19.36 (0.01)
Pan r magnitude 19.54 (0.009)
Pan i magnitude 19.77 (0.01)
Pan z magnitude 20.01 (0.02)
Pan y magnitude 19.72 (0.06)
E(B-V) 0.018

* 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.