WD 1544+564

All names: GALEX J154511.8+561636, SDSS J154511.83+561636.3, Gaia DR2 1598613976060728192, SDSS J154511.84+561636.3, SDSS J154511.85+561636.4, WD 1544+564, SDSS J154511.84+561636.4, Gaia EDR3 1598613976060728192, Gaia DR3 1598613976060728192

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 15 45 11.82 (0.07) 15 45 11.84 15 45 11.82 (0.1) 15 45 11.82 15 45 11.84 (0.07) 15 45 11.84 15 45 10.42 15 45 11.85 15 45 11.85
Declination 56 16 35.39 (0.08) 56 16 36.34 56 16 35.42 (0.1) 56 16 35.39 56 16 36.36 (0.08) 56 16 36.37 56 16 30.00 56 16 36.45 56 16 36.44
Spectral type DA DA DA DA4.5 DA DA5.5 DA DA
Effective temperature [K] 9063.0 9250.0 (40) 9146.0 (155) 9164.0 (33) 9061.0 (34) 9200.0 (32)
log(g) [cgs] 7.95 7.99 (0.07) 7.96 (0.03) 8.22 (0.05) 7.93 (0.06) 8.28 (0.05)
Mass [M] 0.569 0.59 (0.04) 0.574 (0.03) 0.561 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.7279 0.7413
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] 8.91 (0.08) 8.98 (0.1) 8.91 8.91 (0.08)
Distance [pc] 112.29 (1) 111.36 (1) 112.29 112.29 (1)
Composition H H
Proper motion (right ascension) [mas/yr] -14.25632519 (0.09) -14.23122809 (0.2) -14.256 (0.09) -15.1 -15.0
Proper motion (declination) [mas/yr] -61.14638495 (0.1) -61.38200466 (0.2) -61.146 (0.1) -61.1 -58.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.12 (0.01) 18.12 (0.01) 18.13 (0.02) 18.13 18.12 (0.02) 18.13 (0.02)
g magnitude 17.71 (0.005) 17.71 (0.005) 17.71 (0.02) 17.69 17.72 (0.02) 17.69 (0.02)
r magnitude 17.72 (0.006) 17.72 (0.006) 17.73 (0.01) 17.73 17.74 (0.01) 17.73 (0.01)
i magnitude 17.81 (0.007) 17.81 (0.007) 17.81 (0.02) 17.81 17.83 (0.02) 17.81 (0.02)
z magnitude 17.99 (0.02) 17.99 (0.02) 18.00 (0.03) 18.00 18.01 (0.03) 18.00 (0.03)
G magnitude 17.68 (0.01) 17.70 17.68 17.68 (0.003)
BP magnitude 17.77 (0.01) 17.74
RP magnitude 17.51 (0.01) 17.50
Pan g magnitude 17.72 (0.005)
Pan r magnitude 17.73 (0.004)
Pan i magnitude 17.84 (0.007)
Pan z magnitude 17.94 (0.009)
Pan y magnitude 18.09 (0.02)
E(B-V) 0.013

* 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.