WD 1454+578

All names: SDSS J145600.80+574150.6, LAMOST J145600.82+574150.7, Gaia DR3 1613668386188969344, WD 1454+578, SDSS J145600.79+574150.8, SDSS J145600.80+574150.7, SDSS J145600.84+574150.5, SDSS J145600.79+574150.7, 1RXS J145605.0+574132, Gaia EDR3 1613668386188969344, SDSS J145600.85+574150.5, Gaia DR2 1613668386188969344, SDSS J145600.81+574150.8, SDSS J145600.81+574150.6, GALEX J145600.8+574150, SBSS 1454+578

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 14 56 00.84 (0.04) 14 56 00.81 14 56 00.84 (0.05) 14 56 00.84 14 56 00.79 (0.04) 14 56 00.79 14 56 00.31 14 56 00.81 14 56 00.81
Declination 57 41 50.60 (0.04) 57 41 50.68 57 41 50.61 (0.06) 57 41 50.60 57 41 50.85 (0.04) 57 41 50.79 57 41 51.36 57 41 50.76 57 41 50.75
Spectral type DA DA DA DA DA DA DA DA DA
Effective temperature [K] 31667.0 (114) 27630.0 32530.0 (160) 31655.0 (784) 31500.0 (79) 32000.0 (183) 31638.0 (199)
log(g) [cgs] 7.76 (0.03) 7.60 7.80 (0.04) 7.77 (0.03) 7.72 (0.03) 7.84 (0.03) 7.74 (0.03)
Mass [M] 0.53 (0.01) 0.456 0.56 (0.02) 0.536 (0.02) 0.574 (0.01)
log(Luminosity) [L] -0.64 (0.02)
Cooling age [Gyr] 0.0072 (0.0002) 0.0121 0.0074
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] 4.07 (0.04) 4.11 (0.06) 4.07 4.07 (0.04)
Distance [pc] 245.93 (3) 243.40 (4) 245.93 245.92 (3)
Composition H H H
Proper motion (right ascension) [mas/yr] 25.47912286 (0.04) 25.33140671 (0.1) 25.479 (0.04) 33.5 31.0
Proper motion (declination) [mas/yr] -15.67658527 (0.06) -15.64147974 (0.1) -15.677 (0.06) -21.6 -18.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.50
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 15.96 (0.005) 15.95 (0.005) 15.95 (0.02) 15.93 15.92 (0.02) 15.93 (0.03)
g magnitude 16.20 (0.004) 16.18 (0.004) 16.19 (0.02) 16.19 16.20 (0.02) 16.19 (0.02)
r magnitude 16.68 (0.004) 16.68 (0.004) 16.68 (0.02) 16.67 16.68 (0.02) 16.67 (0.02)
i magnitude 17.02 (0.005) 17.01 (0.005) 17.02 (0.01) 17.01 17.03 (0.02) 17.01 (0.02)
z magnitude 17.37 (0.01) 17.37 (0.01) 17.35 (0.03) 17.35 17.36 (0.02) 17.35 (0.02)
G magnitude 16.44 (0.004) 16.46 16.44 16.44 (0.003)
BP magnitude 16.30 (0.004) 16.26
RP magnitude 16.73 (0.005) 16.73
Pan g magnitude 16.27 (0.004)
Pan r magnitude 16.69 (0.003)
Pan i magnitude 17.05 (0.004)
Pan z magnitude 17.35 (0.003)
Pan y magnitude 17.52 (0.01)
E(B-V) 0.018

* 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.