SDSS J074241.42+233408.7

All names: SDSS J074241.42+233408.7, WD 0739+236, SDSS J074241.42+233408.6, Gaia EDR3 867187913203927680, GALEX J074241.4+233409, Gaia DR2 867187913203927680, Gaia DR3 867187913203927680

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 07 42 41.45 (0.3) 07 42 41.43 07 42 41.45 (0.5) 07 42 41.42 (0.3) 07 42 41.42 07 42 41.16 07 42 41.42
Declination 23 34 08.41 (0.3) 23 34 08.62 23 34 08.42 (0.4) 23 34 08.68 (0.3) 23 34 08.71 23 34 03.72 23 34 08.72
Spectral type DA DA DA_auto DA DA DA
Effective temperature [K] 16153.0 15575.0 (404) 15859.0 (409)
log(g) [cgs] 8.12 7.87 (0.08) 7.97 (0.08)
Mass [M] 0.684 0.598 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.1895
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] 1.98 (0.4) 2.25 (0.5) 1.98 (0.4)
Distance [pc] 505.65 (93) 443.49 (103) 505.64 (93)
Composition H
Proper motion (right ascension) [mas/yr] 24.73846991 (0.4) 23.67038422 (1) 24.738 (0.4) 31.7
Proper motion (declination) [mas/yr] -16.7194873 (0.3) -15.82457223 (0.9) -16.719 (0.3) -11.4
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.74 (0.03) 19.75 (0.03) 19.72 (0.04) 19.71 19.73 (0.04)
g magnitude 19.44 (0.01) 19.44 (0.01) 19.43 (0.02) 19.42 19.43 (0.02)
r magnitude 19.72 (0.02) 19.72 (0.02) 19.74 (0.02) 19.73 19.75 (0.02)
i magnitude 20.00 (0.02) 20.00 (0.03) 19.96 (0.04) 19.95 19.97 (0.04)
z magnitude 20.21 (0.08) 20.21 (0.09) 20.23 (0.1) 20.22 20.24 (0.1)
G magnitude 19.60 (0.05) 19.65 19.60 (0.005)
BP magnitude 19.64 (0.05) 19.60
RP magnitude 19.87 (0.1) 19.70
Pan g magnitude 19.45 (0.009)
Pan r magnitude 19.74 (0.008)
Pan i magnitude 20.03 (0.02)
Pan z magnitude 20.28 (0.05)
Pan y magnitude 20.24 (0.2)
E(B-V) 0.029

* 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.