Gaia DR2 1223443630657641728

All names: Gaia EDR3 1223443630657641728, SDSS J155427.10+265718.9, Gaia DR3 1223443630657641728, SDSS J155427.11+265718.9, Gaia DR2 1223443630657641728, J1554+2657, WDJ155427.12+265719.15

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Vincent et al. 2023
Right ascension 15 54 27.07 (0.1) 15 54 27.08 15 54 27.07 15 54 27.12 (0.1) 15 54 27.08
Declination 26 57 17.87 (0.2) 26 57 17.91 26 57 17.87 26 57 19.16 (0.2) 26 57 17.91
Spectral type DA DA DA DA DA DA
Effective temperature [K] 5125.0 (62) 5226.0 (60) 5125.0 (62) 5158.0 4850.0 5166.0 (107)
log(g) [cgs] 7.96 (0.04) 8.05 (0.04) 7.96 (0.05) 7.98 7.77 7.99 (0.06)
Mass [M] 0.559 (0.03) 0.61 (0.04) 0.559 (0.04) 0.571 0.44 0.576 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 5.0700 4.6730 3.9030
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] 10.32 (0.3) 10.34 (0.3) 10.34 (0.3) 10.32 10.32 (0.3) 10.34 (0.3)
Distance [pc] 96.86 (2) 96.71 (3) 96.74 (3) 96.86 96.86 (2) 96.74 (3)
Composition H H
Proper motion (right ascension) [mas/yr] -35.56619558 (0.2) -35.61194649 (0.5) -35.566 (0.2) -35.61194649
Proper motion (declination) [mas/yr] -80.3943337 (0.3) -80.16887675 (0.6) -80.394 (0.3) -80.16887675
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 18.56 (0.04)
H magnitude 18.20 (0.08)
K magnitude 18.00 (0.1)
u magnitude 21.86 (0.1) 21.84 (0.1) 21.84 (0.1)
g magnitude 20.24 (0.02) 20.24 (0.02)
r magnitude 19.61 (0.01) 19.61 (0.01)
i magnitude 19.36 (0.02) 19.36 (0.02)
z magnitude 19.29 (0.04) 19.29 (0.04)
G magnitude 19.63 (0.04) 19.66 19.63 19.63 (0.004) 19.66
BP magnitude 20.10 (0.04) 20.02 20.02
RP magnitude 19.05 (0.03) 19.03 19.03
Pan g magnitude 20.15 (0.03) 20.15 (0.03)
Pan r magnitude 19.59 (0.008) 19.59 (0.008)
Pan i magnitude 19.34 (0.009) 19.34 (0.009)
Pan z magnitude 19.30 (0.02) 19.30 (0.02)
Pan y magnitude 19.25 (0.03) 19.25 (0.03)
E(B-V) 0.019

* 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.