SDSS J133738.54+072440.2

All names: SDSS J133738.54+072440.1, Gaia DR2 3718549665168799232, SDSS J133738.53+072440.1, Gaia DR3 3718549665168799232, SDSS J133738.54+072440.18, GALEX J133738.5+072439, Gaia EDR3 3718549665168799232, SDSS J133738.54+072440.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Kepler et al. 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 13 37 38.54 (0.1) 13 37 38.55 13 37 38.54 (0.2) 13 37 38.54 13 37 38.55 (0.1)
Declination 07 24 40.11 (0.1) 07 24 40.26 07 24 40.12 (0.1) 07 24 40.11 07 24 40.32 (0.1)
Spectral type DA DAH DAH DA DAH DA
Effective temperature [K] 18051.8 (233) 12777.0 19019.0 (158) 16239.0 (862)
log(g) [cgs] 7.81 (0.9) 7.40 7.99 (0.03) 7.82 (0.08)
Mass [M] 0.5197868426047741 (0.08) 0.333 0.52 (0.06)
log(Luminosity) [L]
Cooling age [Gyr] 0.1619
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] 3.07 (0.2) 2.77 (0.2) 3.07 3.07 (0.2)
Distance [pc] 326.12 (19) 360.45 (28) 326.12 326.12 (19)
Composition H
Proper motion (right ascension) [mas/yr] -9.4649664 (0.2) -9.861383645 (0.4) -9.465 (0.2)
Proper motion (declination) [mas/yr] -13.39414141 (0.1) -13.03829422 (0.3) -13.394 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.59 (0.02) 18.58 (0.02) 18.59 (0.02)
g magnitude 18.39 (0.007) 18.40 (0.01) 18.39 (0.007)
r magnitude 18.73 (0.01) 18.73 (0.02) 18.73 (0.01)
i magnitude 19.00 (0.01) 19.00 (0.03) 19.00 (0.01)
z magnitude 19.27 (0.06) 19.28 (0.06) 19.27 (0.06)
G magnitude 18.55 (0.02) 18.57 18.55 18.55 (0.003)
BP magnitude 18.52 (0.02) 18.55
RP magnitude 18.66 (0.03) 18.68
Pan g magnitude 18.41 (0.006)
Pan r magnitude 18.73 (0.007)
Pan i magnitude 18.99 (0.01)
Pan z magnitude 19.12 (0.02)
Pan y magnitude 19.22 (0.03)
E(B-V) 0.030

* 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.