WD 1447+015

All names: WD 1447+015, Gaia EDR3 3652099065036219264, SDSS J144955.65+012005.0, Gaia DR2 3652099065036219264, Gaia DR3 3652099065036219264, 2QZ J144955.6+012005, SDSS J144955.65+012004.9

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 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 49 55.64 (0.2) 14 49 55.65 14 49 55.64 (0.2) 14 49 55.64 14 49 55.65 (0.2) 14 49 55.65 14 49 54.65 14 49 55.65 14 49 55.65
Declination 01 20 04.22 (0.2) 01 20 04.96 01 20 04.24 (0.3) 01 20 04.22 01 20 04.94 (0.2) 01 20 04.95 01 20 00.96 01 20 04.98 01 20 04.99
Spectral type DA DA DA DA DA DA5.1 DA DA
Effective temperature [K] 9509.0 9870.0 (100) 9748.0 (412) 9800.0 (57) 9692.0 (73) 9867.0 (54)
log(g) [cgs] 7.97 8.17 (0.1) 8.04 (0.08) 8.26 (0.08) 8.09 (0.1) 8.34 (0.07)
Mass [M] 0.579 0.71 (0.07) 0.624 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.6575 0.8318
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] 5.89 (0.2) 5.83 (0.4) 5.89 5.89 (0.2)
Distance [pc] 169.84 (7) 171.55 (12) 169.84 169.84 (7)
Composition H H
Proper motion (right ascension) [mas/yr] -14.86145293 (0.2) -14.75410488 (0.4) -14.861 (0.2) -16.1 -14.0
Proper motion (declination) [mas/yr] -44.60308455 (0.2) -45.02945573 (0.4) -44.603 (0.2) -48.8 -49.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 18.50 (0.1)
H magnitude 18.20 (0.1)
K magnitude
u magnitude 18.94 (0.02) 18.94 (0.02) 18.91 (0.03) 18.90 18.94 (0.03) 18.90 (0.03)
g magnitude 18.48 (0.008) 18.48 (0.008) 18.49 (0.02) 18.50 18.51 (0.02) 18.50 (0.02)
r magnitude 18.55 (0.009) 18.55 (0.009) 18.59 (0.01) 18.59 18.59 (0.01) 18.59 (0.01)
i magnitude 18.61 (0.01) 18.61 (0.01) 18.62 (0.02) 18.62 18.63 (0.02) 18.62 (0.02)
z magnitude 18.83 (0.04) 18.83 (0.04) 18.81 (0.05) 18.82 18.84 (0.05) 18.82 (0.05)
G magnitude 18.48 (0.02) 18.50 18.48 18.48 (0.004)
BP magnitude 18.55 (0.02) 18.52
RP magnitude 18.38 (0.02) 18.37
Pan g magnitude 18.49 (0.005)
Pan r magnitude 18.52 (0.003)
Pan i magnitude 18.67 (0.008)
Pan z magnitude 18.78 (0.007)
Pan y magnitude 18.93 (0.02)
E(B-V) 0.029

* 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.