WD 1457-005

All names: Gaia DR2 1514442233489698688, WD 1457-004, SDSS J145947.05-003954.6, SDSS J145947.04-003954.6, WD 1457-005, PSO J145947.057+003955.425, Gaia DR2 6348672845649310464, SDSS J145947.05-003954.5

Parameter Unit MWDD HE Pan-STARRS DR1 Gaia DR2 Gaia DR2 Koester & Kepler (2015) Harris et al. 2003 SDSS DR12 Simbad Eisenstein et al. 2006 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2013
Right ascension 14 59 47.05 (0.3) 14 59 47.05 (0.3) 14 59 47.05 14 59 47.05 14 59 47.05 14 59 47.05 14 59 46.22 14 59 47.04 14 59 47.04
Declination -00 39 55.56 (0.2) -00 39 55.56 (0.2) -00 39 54.55 -00 39 54.56 -00 39 54.56 -00 39 54.56 -00 39 47.52 -00 39 54.64 -00 39 54.64
Spectral type DB3 DB3 DB DB DB ? DB DB
Effective temperature [K] 13364.0 16712.0 (128) 17067.0 (139) 17091.0 (151) 16822.0 (174) 16541.0 (141)
log(g) [cgs] 7.74 8.12 (0.08) 8.20 (0.08) 8.17 (0.08) 8.17 (0.1) 8.19 (0.09)
Mass [M] 0.451 0.7 (0.06)
log(Luminosity) [L]
Cooling age [Gyr] 0.1980
log(H/He) -5.02 (0)
log(C/He)
log(Ca/He) -6.31 (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] 3.40 (0.3) 3.40 (0.3)
Distance [pc] 294.30 (27) 294.30 (27) 274.00
Composition He
Proper motion (right ascension) [mas/yr] -2.289833962 (0.6) -2.29 (0.6) -1.0 -5.0 -5.0
Proper motion (declination) [mas/yr] -59.78510292 (0.5) -59.785 (0.5) -6.0 -61.9 -61.9
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.35 18.34 (0.01) 18.32 18.33 (0.02) 18.33 (0.02) 18.35 18.35 (0.02) 18.35 (0.02)
g magnitude 18.40 18.37 (0.007) 18.37 18.40 (0.03) 18.40 (0.03) 18.40 18.40 (0.02) 18.40 (0.02)
r magnitude 18.68 18.66 (0.009) 18.65 18.67 (0.02) 18.67 (0.02) 18.67 18.67 (0.02) 18.67 (0.02)
i magnitude 18.91 18.91 (0.01) 18.90 18.92 (0.02) 18.92 (0.02) 18.91 18.92 (0.02) 18.92 (0.02)
z magnitude 19.11 19.14 (0.04) 19.11 19.11 (0.04) 19.11 (0.04) 19.11 19.13 (0.04) 19.13 (0.04)
G magnitude 18.57 18.57
BP magnitude 18.38 18.38
RP magnitude 18.59 18.59
Pan g magnitude 18.44 (0.006)
Pan r magnitude 18.67 (0.008)
Pan i magnitude 18.92 (0.008)
Pan z magnitude 19.11 (0.01)
Pan y magnitude 19.23 (0.03)

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.