WD 1544-006

All names: SDSS J154647.28-005003.5, SDSS J154647.29-005003.6, Gaia DR3 4404227862397169920, SDSS J154647.30-005003.5, WD 1544-006, SDSS J154647.29-005003.5, Gaia DR2 4404227862397169920, Gaia EDR3 4404227862397169920

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Harris et al. 2003 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 46 47.27 (0.1) 15 46 47.29 15 46 47.27 (0.2) 15 46 47.27 15 46 47.29 (0.1) 15 46 47.29 15 46 46.51 15 46 47.30 15 46 47.30
Declination -00 50 03.62 (0.09) -00 50 03.59 -00 50 03.62 (0.1) -00 50 03.62 -00 50 03.57 (0.09) -00 50 03.60 -00 50 03.12 -00 50 03.51 -00 50 03.52
Spectral type DA DA DA3 DA DA3 DA DA2.4 DA DA
Effective temperature [K] 12589.0 21310.0 (420) 17864.0 (1018) 22009.0 (432) 20724.0 (298) 20904.0 (286)
log(g) [cgs] 6.97 7.43 (0.06) 7.35 (0.08) 7.53 (0.06) 7.40 (0.05) 7.40 (0.04)
Mass [M] 0.229 0.41 (0.01) 0.339 (0.03) 0.411 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.0513
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] 2.56 (0.1) 2.45 (0.2) 2.56 2.56 (0.1)
Distance [pc] 391.05 (23) 408.73 (33) 391.05 391.05 (23)
Composition H H
Proper motion (right ascension) [mas/yr] -19.14199168 (0.2) -19.27418582 (0.3) -19.142 (0.2) -19.9 -19.0
Proper motion (declination) [mas/yr] -2.735904705 (0.1) -2.578577117 (0.3) -2.736 (0.1) -1.7 -1.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 18.58 (0.08)
H magnitude 18.30 (0.1)
K magnitude
u magnitude 18.17 (0.01) 18.16 18.17 (0.01) 18.18 (0.02) 18.17 18.18 (0.02) 18.17 (0.02)
g magnitude 18.05 (0.006) 18.04 18.05 (0.006) 18.08 (0.02) 18.04 18.08 (0.02) 18.04 (0.01)
r magnitude 18.34 (0.008) 18.34 18.34 (0.008) 18.35 (0.02) 18.34 18.33 (0.02) 18.34 (0.01)
i magnitude 18.55 (0.01) 18.54 18.55 (0.01) 18.57 (0.01) 18.54 18.55 (0.01) 18.54 (0.01)
z magnitude 18.84 (0.04) 18.79 18.84 (0.04) 18.84 (0.04) 18.79 18.81 (0.04) 18.79 (0.04)
G magnitude 18.19 (0.02) 18.22 18.19 18.19 (0.003)
BP magnitude 18.19 (0.02) 18.17
RP magnitude 18.31 (0.02) 18.30
Pan g magnitude 18.08 (0.007)
Pan r magnitude 18.34 (0.004)
Pan i magnitude 18.60 (0.006)
Pan z magnitude 18.81 (0.007)
Pan y magnitude 18.94 (0.02)
E(B-V) 0.095

* 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.