SDSS J154526.36+125955.6

All names: SDSS J154526.36+125955.6, SDSS J154526.37+125955.6, Gaia DR3 1190759788528003584, SDSS J154526.37+125955.7, Gaia EDR3 1190759788528003584, Gaia DR2 1190759788528003584

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 15 45 26.37 (0.1) 15 45 26.37 15 45 26.37 (0.2) 15 45 26.37 15 45 26.36 (0.1) 15 45 26.37
Declination 12 59 55.75 (0.1) 12 59 55.64 12 59 55.75 (0.2) 12 59 55.75 12 59 55.61 (0.1) 12 59 55.65
Spectral type DA DA DA DA DA DA
Effective temperature [K] 46007.0 (837) 26658.0 31314.0 (2822) 45365.0 (1062)
log(g) [cgs] 7.67 (0.07) 7.26 7.64 (0.1) 7.63 (0.09)
Mass [M☉] 0.53 (0.03) 0.351 0.481 (0.07) 0.528 (0.04)
log(Luminosity) [L☉] 0.10 (0.06)
Cooling age [Gyr] 0.0022 (0.0004) 0.0135
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] 1.83 (0.1) 1.51 (0.2) 1.83 1.83 (0.1)
Distance [pc] 547.45 (43) 661.08 (98) 547.45 547.47 (43)
Composition H H
Proper motion (right ascension) [mas/yr] 7.798528301 (0.1) 7.431341641 (0.3) 7.799 (0.1)
Proper motion (declination) [mas/yr] 8.598933832 (0.1) 8.791375365 (0.4) 8.599 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.56 (0.01) 17.56 (0.01) 17.58 (0.01)
g magnitude 17.88 (0.006) 17.89 (0.006) 17.90 (0.02)
r magnitude 18.39 (0.008) 18.39 (0.008) 18.40 (0.02)
i magnitude 18.72 (0.01) 18.71 (0.01) 18.73 (0.02)
z magnitude 19.02 (0.06) 19.02 (0.06) 19.01 (0.06)
G magnitude 18.11 (0.01) 18.15 18.11 18.11 (0.003)
BP magnitude 17.96 (0.01) 17.95
RP magnitude 18.34 (0.02) 18.38
Pan g magnitude 17.95 (0.007)
Pan r magnitude 18.36 (0.004)
Pan i magnitude 18.72 (0.004)
Pan z magnitude 18.99 (0.01)
Pan y magnitude 19.22 (0.03)
E(B-V) 0.035

* 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.