SDSS J124427.37+495815.6

All names: GALEX J124427.3+495816, Gaia EDR3 1567600051577298688, SDSS J124427.37+495815.7, SDSS J124427.37+495815.6, Gaia DR2 1567600051577298688, WD 1242+502, Gaia DR3 1567600051577298688

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 27.37 (0.2) 12 44 27.38 12 44 27.37 (0.3) 12 44 27.38 (0.2) 12 44 27.37 12 44 26.76 12 44 27.37
Declination 49 58 15.61 (0.3) 49 58 15.71 49 58 15.60 (0.3) 49 58 15.56 (0.3) 49 58 15.67 49 58 12.00 49 58 15.69
Spectral type DA DA DA_auto DA DA DA
Effective temperature [K] 9307.0 10472.0 (215) 10441.0 (227)
log(g) [cgs] 7.98 8.40 (0.2) 8.36 (0.2)
Mass [M] 0.586 0.817 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.7058
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] 3.09 (0.4) 3.21 (0.5) 3.09 (0.4)
Distance [pc] 323.19 (40) 311.67 (46) 323.20 (40)
Composition H
Proper motion (right ascension) [mas/yr] -6.399217524 (0.3) -6.703392966 (0.6) -6.399 (0.3) -5.9
Proper motion (declination) [mas/yr] 3.060738709 (0.3) 3.036256409 (0.6) 3.061 (0.3) 1.3
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.24 (0.04) 20.24 (0.04) 20.27 (0.05) 20.27 20.27 (0.05)
g magnitude 19.86 (0.01) 19.86 (0.01) 19.87 (0.03) 19.87 19.87 (0.03)
r magnitude 19.95 (0.02) 19.95 (0.02) 19.97 (0.02) 19.97 19.98 (0.02)
i magnitude 20.01 (0.03) 20.01 (0.03) 20.06 (0.03) 20.06 20.06 (0.03)
z magnitude 20.25 (0.1) 20.25 (0.1) 20.24 (0.1) 20.23 20.22 (0.1)
G magnitude 19.89 (0.03) 19.95 19.89 (0.004)
BP magnitude 19.93 (0.03) 19.95
RP magnitude 19.85 (0.06) 19.60
Pan g magnitude 19.87 (0.01)
Pan r magnitude 19.93 (0.02)
Pan i magnitude 20.07 (0.02)
Pan z magnitude 20.16 (0.03)
Pan y magnitude 20.13 (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.