PHL 990

All names: Gaia DR2 2538286403050847232, Gaia EDR3 2538286403050847232, LP 586-65, WDJ010648.78+014845.39, 2MASS J01064879+0148452, PHL 990, J0106+0148, WD 0104+015, SDSS J010648.92+014845.2, LSPM J0106+0148, TIC 365003622, USNO-B1.0 0918-00011928, PB 6260, NLTT 3685, Gaia DR3 2538286403050847232, GALEX J010648.8+014845

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Gianninas et al. 2011 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 01 06 49.04 (0.07) 01 06 49.03 (0.09) 01 06 49.04 01 06 48.78 (0.07) 01 06 49.03 01 06 48.31
Declination 01 48 45.22 (0.05) 01 48 45.23 (0.06) 01 48 45.22 01 48 45.39 (0.05) 01 48 45.23 01 48 25.56
Spectral type DA DA DA DA DA DA DA5.4 DA
Effective temperature [K] 8314.0 (42) 8329.0 (39) 8315.0 (42) 8173.0 9320.0 (146) 8041.0 (86)
log(g) [cgs] 7.56 (0.01) 7.57 (0.01) 7.56 (0.01) 7.52 8.33 (0.09) 7.50 (0.02)
Mass [M] 0.374 (0.008) 0.376 (0.009) 0.371 (0.009) 0.355 0.81 (0.06) 0.346 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.6100 0.6047
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] 10.22 (0.08) 10.17 (0.1) 10.17 (0.1) 10.22 10.22 (0.08) 10.17 (0.1)
Distance [pc] 97.86 (0.8) 98.33 (1) 98.32 (1) 73.00 97.86 97.86 (0.8) 98.32 (1)
Composition H H H H
Proper motion (right ascension) [mas/yr] 247.7340837 (0.09) 248.032616 (0.2) 247.734 (0.1) 248.032616
Proper motion (declination) [mas/yr] -10.63237057 (0.08) -10.38304726 (0.1) -10.632 (0.08) -10.38304726
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity yes
B magnitude 17.20
V magnitude
R magnitude 17.40
I magnitude
J magnitude 16.82 (0.02) 16.70 (0.1)
H magnitude 16.69 (0.03)
K magnitude 16.70 (0.05)
u magnitude 17.73 (0.01) 17.75 (0.01) 17.75 (0.01)
g magnitude 17.27 (0.005) 17.27 (0.005)
r magnitude 17.25 (0.006) 17.25 (0.006)
i magnitude 17.28 (0.007) 17.28 (0.007)
z magnitude 17.38 (0.01) 17.38 (0.01)
G magnitude 17.19 (0.005) 17.21 17.19 17.19 (0.003) 17.21
BP magnitude 17.32 (0.005) 17.30 17.30
RP magnitude 16.97 (0.008) 16.97 16.97
Pan g magnitude 17.28 (0.006) 17.28 (0.006)
Pan r magnitude 17.24 (0.004) 17.24 (0.004)
Pan i magnitude 17.29 (0.002) 17.29 (0.002)
Pan z magnitude 17.39 (0.004) 17.39 (0.004)
Pan y magnitude 17.45 (0.003) 17.45 (0.003)
E(B-V) 0.005

* 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.