PHL 1201

All names: WD 0149-253, Gaia DR2 5026000176075186560, Gaia DR3 5026000176075186560, USNO-A2.0 0600-00725066, MCT0149-2518, HE 0149-2518, PHL 1201, GALEX J015159.6-250316, Gaia EDR3 5026000176075186560, MCT 0149-2518

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Bergeron et al. 2021 MWDD HE Gaia DR2 Stilism Voss et al. 2007 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 01 51 59.69 (0.04) 01 51 59.69 (0.05) 01 51 59.69 01 51 59.65 (0.04) 01 51 59.16
Declination -25 03 15.76 (0.04) -25 03 15.75 (0.06) -25 03 15.76 -25 03 15.32 (0.04) -25 03 12.60
Spectral type DB DB DB DB DB3.1
Effective temperature [K] 16642.0 (544) 15647.0 16834.0 15759.0 (324)
log(g) [cgs] 7.87 (0.2) 7.96 7.94 7.95 (0.03)
Mass [M] 0.523 (0.1) 0.567 0.557 0.563 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 0.1109 0.1615
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 6.77 (0.06) 6.85 (0.09) 6.77 6.77 (0.06)
Distance [pc] 147.65 (1) 147.00 145.94 (2) 147.65 147.65 (1)
Composition He He
Proper motion (right ascension) [mas/yr] 33.87093744 (0.06) 33.8445902 (0.1) 33.871 (0.06)
Proper motion (declination) [mas/yr] -27.55870599 (0.05) -27.67350817 (0.1) -27.559 (0.05)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.91 17.20 (0.3)
V magnitude 17.20
R magnitude 17.00 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 16.91 (0.004) 16.94 16.91 16.91 (0.003)
BP magnitude 16.85 (0.004) 16.81
RP magnitude 17.03 (0.006) 17.02
Pan g magnitude 16.83 (0.003)
Pan r magnitude 17.07 (0.003)
Pan i magnitude 17.34 (0.005)
Pan z magnitude 17.59 (0.008)
Pan y magnitude 17.78 (0.02)
E(B-V) 0.002

* 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.