PHL 886

All names: TIC 266031012, PHL 886, 2MASS J00541820+1202008, Gaia DR3 2774977549607430528, HS 0051+1145, USNO-B1.0 1020-00007738, Gaia EDR3 2774977549607430528, Gaia DR2 2774977549607430528, GALEX J005418.2+120201, WD 0051+117

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Ferrario et al. 2015 Koester et al. 2009 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 00 54 18.31 (0.04) 00 54 18.31 (0.1) 00 54 18.31 00 54 18.22 (0.04) 00 54 17.98
Declination 12 02 00.32 (0.03) 12 02 00.33 (0.05) 12 02 00.32 12 02 00.57 (0.03) 12 01 57.72
Spectral type DA DA DA DA DAH DAH
Effective temperature [K] 19448.6 (276) 18754.0 20850.0 (317)
log(g) [cgs] 7.91 (0.09) 7.86 7.95 (0.01)
Mass [M] 0.573781707769375 (0.1) 0.547 0.599 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.0658
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] 8.64 (0.05) 8.84 (0.1) 8.64 8.64 (0.05)
Distance [pc] 115.68 (0.7) 113.10 (1) 115.68 115.68 (0.7)
Composition H
Proper motion (right ascension) [mas/yr] 83.16114618 (0.07) 82.92036814 (0.2) 83.161 (0.07)
Proper motion (declination) [mas/yr] -15.38619996 (0.04) -15.44048411 (0.08) -15.386 (0.04)
Variability
Magnetic yes yes yes
Bd [MG] 0.24 (0.01) 0.24
Infrared excess (disk)
Binarity
B magnitude 15.80
V magnitude 16.30
R magnitude 16.10
I magnitude
J magnitude 16.38 (0.1)
H magnitude 16.30 (0.2)
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.96 (0.002) 15.98 15.96 15.96 (0.003)
BP magnitude 15.87 (0.002) 15.86
RP magnitude 16.15 (0.004) 16.15
Pan g magnitude 15.81 (0.003)
Pan r magnitude 16.16 (0.005)
Pan i magnitude 16.46 (0.003)
Pan z magnitude 16.72 (0.004)
Pan y magnitude 16.89 (0.009)
E(B-V) 0.007

* 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.