SDSS J145451.08+231413.3

All names: SDSS J145451.08+231413.3, Gaia EDR3 1263067594476381824, SDSS J145451.09+231413.3, Gaia DR2 1263067594476381824, GALEX J145451.0+231412, SDSS J145451.09+231413.4, Gaia DR3 1263067594476381824

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 54 51.09 (0.08) 14 54 51.09 14 54 51.09 (0.1) 14 54 51.09 14 54 51.09 (0.08) 14 54 51.09
Declination 23 14 13.30 (0.1) 23 14 13.33 23 14 13.30 (0.1) 23 14 13.30 23 14 13.37 (0.1) 23 14 13.37
Spectral type DA DA DA DA DA DA
Effective temperature [K] 30914.0 (215) 22842.0 39003.0 (4759) 30996.0 (210)
log(g) [cgs] 7.84 (0.05) 7.70 8.24 (0.1) 7.95 (0.05)
Mass [M☉] 0.57 (0.03) 0.481 0.798 (0.08) 0.621 (0.02)
log(Luminosity) [L☉] -0.73 (0.04)
Cooling age [Gyr] 0.0079 (0.0002) 0.0231
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] 2.15 (0.1) 2.25 (0.2) 2.15 2.15 (0.1)
Distance [pc] 464.76 (30) 444.05 (33) 464.76 464.77 (30)
Composition H H
Proper motion (right ascension) [mas/yr] -0.126694783 (0.1) -0.505497629 (0.3) -0.127 (0.1)
Proper motion (declination) [mas/yr] -4.368467705 (0.1) -4.802951779 (0.3) -4.368 (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 17.85 (0.01) 17.85 (0.01) 17.96 (0.02)
g magnitude 18.10 (0.006) 18.10 (0.006) 18.14 (0.03)
r magnitude 18.54 (0.008) 18.54 (0.008) 18.54 (0.02)
i magnitude 18.87 (0.01) 18.87 (0.01) 18.91 (0.02)
z magnitude 19.18 (0.05) 19.18 (0.05) 19.25 (0.06)
G magnitude 18.32 (0.01) 18.35 18.32 18.32 (0.003)
BP magnitude 18.19 (0.01) 18.19
RP magnitude 18.63 (0.03) 18.54
Pan g magnitude 18.14 (0.004)
Pan r magnitude 18.54 (0.008)
Pan i magnitude 18.89 (0.01)
Pan z magnitude 19.15 (0.01)
Pan y magnitude 19.29 (0.03)
E(B-V) 0.035

* 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.