SDSS J023402.50+243352.2

All names: SDSS J023402.50+243352.20, Gaia EDR3 102115527522147584, Gaia DR3 102115527522147584, Gaia DR2 102115527522147584, GALEX J023402.4+243353, SDSS J023402.50+243352.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 02 34 02.49 (0.2) 02 34 02.50 02 34 02.50 (0.2) 02 34 02.50 (0.2) 02 34 02.50
Declination 24 33 52.02 (0.2) 24 33 52.22 24 33 52.03 (0.2) 24 33 52.35 (0.2) 24 33 52.24
Spectral type DBAH: DBAH DBAH: DB+MS
Effective temperature [K] 23596.0 27619.0 13413.0 29758.0 (547) 32600.0 (633)
log(g) [cgs] 7.74 7.85 7.19 7.86 (0.06) 7.90 (0.06)
Mass [M] 0.473 0.533 0.258
log(Luminosity) [L]
Cooling age [Gyr] 0.1273
log(H/He) -2.72 -2.76 (0.08)
log(C/He)
log(Ca/He) <-4.0
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] 1.59 (0.3) 1.81 (0.3) 1.59 (0.3)
Distance [pc] 629.19 (106) 551.23 (88) 498.00 629.21 (106)
Composition He
Proper motion (right ascension) [mas/yr] -8.525372629 (0.3) -7.34662222 (0.6) -8.525 (0.3)
Proper motion (declination) [mas/yr] -21.01266887 (0.3) -20.71800695 (0.5) -21.013 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.90 (0.02) 18.90 (0.02) 18.91 (0.02)
g magnitude 18.95 (0.009) 18.95 (0.009) 18.97 (0.02)
r magnitude 19.23 (0.01) 19.23 (0.01) 19.23 (0.02)
i magnitude 19.51 (0.02) 19.51 (0.02) 19.51 (0.02)
z magnitude 19.73 (0.08) 19.73 (0.08) 19.73 (0.08)
G magnitude 19.09 (0.04) 19.13 19.09 (0.004)
BP magnitude 19.10 (0.04) 19.02
RP magnitude 19.29 (0.06) 19.09
Pan g magnitude 19.02 (0.01)
Pan r magnitude 19.23 (0.008)
Pan i magnitude 19.51 (0.02)
Pan z magnitude 19.74 (0.03)
Pan y magnitude 19.67 (0.04)
E(B-V) 0.102

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.