WD 1539+034

All names: WD 1539+034, Gaia EDR3 4424525774757901952, GALEX J154154.7+031634, Gaia DR3 4424525774757901952, Gaia DR2 4424525774757901952, SDSS J154154.63+031634.3, SDSS J154154.62+031634.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism 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 15 41 54.61 (0.5) 15 41 54.63 15 41 54.61 (0.7) 15 41 54.63 (0.5) 15 41 54.63 15 41 53.57 15 41 54.63 15 41 54.63
Declination 03 16 33.98 (0.6) 03 16 34.28 03 16 33.99 (0.5) 03 16 34.30 (0.6) 03 16 34.27 03 16 27.48 03 16 34.26 03 16 34.25
Spectral type DA DA DA DA3.4 DA DA
Effective temperature [K] 11968.0 14771.0 (645) 16010.0 (915) 14916.0 (671)
log(g) [cgs] 7.15 7.62 (0.2) 7.54 (0.2) 7.68 (0.2)
Mass [M] 0.26
log(Luminosity) [L]
Cooling age [Gyr] 0.1596
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] 1.45 (0.8) 1.17 (1) 1.45 (0.8)
Distance [pc] 687.96 (388) 858.18 (793) 687.95 (388)
Composition H
Proper motion (right ascension) [mas/yr] -17.63168287 (0.8) -19.96396779 (2) -17.632 (0.8) -4.8 -7.0
Proper motion (declination) [mas/yr] -20.07471504 (0.8) -20.00681859 (2) -20.075 (0.8) -21.8 -26.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.38 (0.06) 20.38 (0.06) 20.39 (0.06) 20.39 20.40 (0.06) 20.39 (0.06)
g magnitude 20.06 (0.02) 20.06 (0.02) 20.07 (0.02) 20.08 20.07 (0.02) 20.08 (0.03)
r magnitude 20.32 (0.03) 20.33 (0.03) 20.35 (0.03) 20.34 20.35 (0.03) 20.34 (0.03)
i magnitude 20.59 (0.05) 20.58 (0.05) 20.61 (0.05) 20.62 20.62 (0.05) 20.62 (0.05)
z magnitude 20.91 (0.3) 20.89 (0.3) 20.89 (0.3) 20.87 20.90 (0.3) 20.87 (0.3)
G magnitude 20.22 (0.07) 20.26 20.22 (0.008)
BP magnitude 20.36 (0.07) 20.26
RP magnitude 20.21 (0.1) 20.32
Pan g magnitude 20.10 (0.02)
Pan r magnitude 20.33 (0.02)
Pan i magnitude 20.58 (0.02)
Pan z magnitude 20.75 (0.03)
Pan y magnitude 20.79 (0.2)
E(B-V) 0.045

* 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.