WD 1454+014

All names: SDSS J145644.91+011017.5, GALEX J145644.9+011018, WD 1454+014, SDSS J145644.90+011017.5, SDSS J145644.91+011017.4, Gaia DR2 1153284721401682432, WD 1454+013, SDSS J145644.91+011017.6, Gaia DR3 1153284721401682432, SDSS J145644.91+011017.50, Gaia EDR3 1153284721401682432

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 Harris et al. 2003 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 56 44.88 (0.3) 14 56 44.91 14 56 44.88 (0.5) 14 56 44.91 (0.3) 14 56 44.91 14 56 44.74 14 56 44.91
Declination 01 10 17.28 (0.2) 01 10 17.55 01 10 17.29 (0.3) 01 10 17.57 (0.2) 01 10 17.57 01 10 15.60 01 10 17.48
Spectral type DB3.5 DB3.5 DB3.5 DB ? DB DB
Effective temperature [K] 17189.0 17052.0 14609.0 17472.0 (189) 17885.0 (254) 17079.0 (249)
log(g) [cgs] 7.99 7.92 7.72 7.89 (0.1) 7.98 (0.1) 7.82 (0.1)
Mass [M] 0.586 0.547 0.444
log(Luminosity) [L]
Cooling age [Gyr] 0.1442
log(H/He) <-5.72 <-4.51
log(C/He)
log(Ca/He) <-5.48
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] 2.21 (0.3) 2.25 (0.5) 2.21 (0.3)
Distance [pc] 453.49 (68) 443.66 (106) 464.00 453.49 (68)
Composition He
Proper motion (right ascension) [mas/yr] -23.442612 (0.3) -23.37101581 (0.7) -23.443 (0.3) -24.1
Proper motion (declination) [mas/yr] -17.71606109 (0.3) -17.87154602 (0.6) -17.716 (0.3) -21.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.01 (0.02) 19.02 19.01 (0.02) 19.02 (0.03) 19.02 19.03 (0.03)
g magnitude 19.04 (0.01) 19.05 19.04 (0.01) 19.05 (0.02) 19.05 19.05 (0.02)
r magnitude 19.35 (0.01) 19.35 19.35 (0.01) 19.36 (0.02) 19.35 19.36 (0.02)
i magnitude 19.57 (0.02) 19.51 19.57 (0.02) 19.53 (0.03) 19.52 19.54 (0.03)
z magnitude 19.88 (0.08) 19.90 19.88 (0.08) 19.91 (0.1) 19.91 19.93 (0.1)
G magnitude 19.19 (0.04) 19.23 19.19 (0.005)
BP magnitude 19.21 (0.04) 19.19
RP magnitude 19.57 (0.09) 19.47
Pan g magnitude 19.08 (0.009)
Pan r magnitude 19.32 (0.01)
Pan i magnitude 19.60 (0.01)
Pan z magnitude 19.80 (0.02)
Pan y magnitude 19.90 (0.07)
E(B-V) 0.040

* 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.