SDSS J135240.39+630901.9

All names: Gaia DR3 1664761660739641856, Gaia DR2 1664761660739290880, Gaia EDR3 1664761660739641856, GALEX J135240.4+630901, WD 1351+633, SDSS J135240.39+630901.9, SDSS J135240.39+630902.0, SDSS J135240.39+630901.90

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 13 52 40.42 (0.4) 13 52 40.39 13 52 40.42 (1) 13 52 40.40 (0.4) 13 52 40.39 13 52 40.54 13 52 40.39
Declination 63 09 01.59 (0.4) 63 09 02.03 63 09 01.60 (0.7) 63 09 01.98 (0.4) 63 09 01.91 63 08 57.12 63 09 01.88
Spectral type DB DB DB DB DBZ: DC
Effective temperature [K] 14601.0 12451.0 11109.0 13946.0 (540) 13505.0 (561)
log(g) [cgs] 6.95 8.33 8.12 8.16 (0.5) 8.52 (0.5)
Mass [M] 0.218 0.791 0.659
log(Luminosity) [L]
Cooling age [Gyr] 0.5698
log(H/He) <-5.928
log(C/He)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 1.94 (0.5) 2.39 (0.7) 1.94 (0.5)
Distance [pc] 514.24 (120) 417.63 (115) 514.24 (120)
Composition He
Proper motion (right ascension) [mas/yr] 9.695078907 (0.6) 8.396204093 (2) 9.695 (0.6)
Proper motion (declination) [mas/yr] -23.9918796 (0.6) -25.52371332 (2) -23.992 (0.6)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.30 (0.05) 20.31 (0.05) 20.25 (0.05) 20.24 20.24 (0.05)
g magnitude 20.27 (0.02) 20.31 (0.02) 20.31 (0.03) 20.31 20.31 (0.03)
r magnitude 20.47 (0.03) 20.52 (0.03) 20.54 (0.03) 20.54 20.54 (0.03)
i magnitude 20.70 (0.06) 20.75 (0.05) 20.76 (0.05) 20.75 20.76 (0.05)
z magnitude 20.61 (0.2) 20.63 (0.2) 20.66 (0.2) 20.65 20.66 (0.2)
G magnitude 20.36 (0.09) 20.42 20.36 (0.007)
BP magnitude 20.51 (0.09) 20.29
RP magnitude 20.48 (0.1) 20.36
Pan g magnitude 20.34 (0.03)
Pan r magnitude 20.50 (0.04)
Pan i magnitude 20.67 (0.02)
Pan z magnitude 20.79 (0.06)
Pan y magnitude
E(B-V) 0.017

* 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.