SDSS J235431.38+365019.1

All names: SDSS J235431.38+365019.1, SDSS J235431.39+365019.1, Gaia DR2 2878917437502341120, GALEX J235431.4+365019, Gaia DR3 2878917437502341120, Gaia EDR3 2878917437502341120

Parameter Unit Gaia EDR3 SDSS DR12 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 23 54 31.39 (0.4) 23 54 31.38 23 54 31.39 (0.6) 23 54 31.39 (0.4) 23 54 31.38
Declination 36 50 18.99 (0.4) 36 50 19.14 36 50 19.00 (0.5) 36 50 19.12 (0.4) 36 50 19.13
Spectral type DA DAH DAH DAH DAH
Effective temperature [K] 10839.8 (841) 11395.0 14078.0 (1251)
log(g) [cgs] 8.35 (0.2) 8.51 9.29 (0.2)
Mass [M] 0.8235697238402051 (0.3) 0.927
log(Luminosity) [L]
Cooling age [Gyr] 0.9454
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] 3.44 (0.6) 2.60 (0.8) 3.44 (0.6)
Distance [pc] 290.75 (55) 385.22 (123) 290.75 (55)
Composition H
Proper motion (right ascension) [mas/yr] 2.856540124 (0.6) 1.671434643 (1) 2.857 (0.6)
Proper motion (declination) [mas/yr] -7.826643845 (0.7) -8.628110816 (1) -7.827 (0.7)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 21.21 (0.1) 21.21 (0.1) 21.14 (0.1)
g magnitude 20.52 (0.03) 20.52 (0.03) 20.48 (0.03)
r magnitude 20.60 (0.05) 20.60 (0.05) 20.73 (0.06)
i magnitude 20.78 (0.07) 20.77 (0.07) 20.48 (0.06)
z magnitude 21.06 (0.3) 21.06 (0.3) 20.52 (0.2)
G magnitude 20.37 (0.07) 20.43 20.37 (0.007)
BP magnitude 20.43 (0.07) 20.46
RP magnitude 19.90 (0.1) 19.86
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.052

* 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.