WD J1444-0059

All names: Gaia DR3 3650552739370519680, LAMOST J144433.83-005958.83, Gaia EDR3 3650552739370519680, SDSS J144433.81-005958.8, WDJ144433.81-005958.87, LAMOST J144433.83-005958.8, SDSS J144433.80-005958.9, HE1441-0047, WD 1441-007, J1444-0059, SDSS J144433.80-005958.8, Gaia DR2 3650552739370519680, HE 1441-0047

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Guo et al. 2015 Zhao et al. 2013 Tremblay et al. 2011 Koester et al. 2009 Mukadam et al. 2004 Harris et al. 2003 Koester et al. 2001 Vincent et al. 2024 Gentile Fusillo et al. 2018 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 14 44 33.84 (0.05) 14 44 33.81 14 44 33.84 (0.06) 14 44 33.83 14 44 33.90 14 44 33.84 14 44 33.84 14 44 33.80 14 44 32.45 14 44 33.80 14 44 33.80
Declination -00 59 58.51 (0.05) -00 59 58.81 -00 59 58.52 (0.09) -00 59 58.83 -01 00 00.00 -00 59 58.51 -00 59 58.52 -00 59 58.83 -00 59 56.40 -00 59 58.83 -00 59 58.85
Spectral type DA DA DA DA DA DA4 DA DA DA DA DA3.2 DA DA
Effective temperature [K] 12109.0 (74) 12107.0 (74) 12081.0 12165.0 (856) 12280.0 (70) 15775.0 (72) 15750.0 (70) 17507.0 (118) 12292.0 (196) 15745.0 (74) 16579.0 (60) 15814.0 (69)
log(g) [cgs] 8.11 (0.007) 8.12 (0.009) 8.11 8.01 (0.2) 8.32 (0.02) 8.03 (0.01) 8.05 (0.02) 7.92 (0.02) 8.13 (0.01) 8.05 (0.01) 8.14 (0.01) 8.08 (0.01)
Mass [M] 0.672 (0.006) 0.675 (0.008) 0.674 0.61 (0.1) 0.81 (0.01) 0.58 0.686 (0.01) 0.692 (0.006)
log(Luminosity) [L]
Cooling age [Gyr] 0.4297 0.3670 (0.2) 0.5754
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] 12.82 (0.06) 12.86 (0.1) 12.82 12.86 (0.1)
Distance [pc] 78.01 (0.4) 77.79 (0.6) 77.00 78.01 77.79 (0.6)
Composition H H H
Proper motion (right ascension) [mas/yr] 31.22791602 (0.06) 31.00829388 (0.1) 31.008 27.9 28.0
Proper motion (declination) [mas/yr] 22.5842774 (0.06) 23.0350787 (0.2) 23.035 24.9 24.0
Variability NOV
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.40
V magnitude 16.20
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 16.59 (0.007) 16.58 16.59 16.59 (0.007) 16.58 (0.01) 16.58 16.60 (0.01) 16.58 (0.02)
g magnitude 16.20 (0.004) 16.20 16.22 16.22 16.20 (0.004) 16.21 (0.02) 16.22 16.22 (0.02) 16.22 (0.02)
r magnitude 16.39 (0.004) 16.38 16.40 16.39 (0.004) 16.40 (0.01) 16.40 16.41 (0.01) 16.40 (0.01)
i magnitude 16.58 (0.005) 16.58 16.60 16.58 (0.005) 16.60 (0.01) 16.60 16.61 (0.01) 16.60 (0.02)
z magnitude 16.81 (0.01) 16.85 16.88 16.81 (0.01) 16.88 (0.02) 16.88 16.88 (0.02) 16.88 (0.02)
G magnitude 16.30 (0.005) 16.32 16.30 16.32
BP magnitude 16.30 (0.005) 16.29 16.29
RP magnitude 16.33 (0.008) 16.32 16.32
Pan g magnitude 16.22 (0.003)
Pan r magnitude 16.40 (0.003)
Pan i magnitude 16.63 (0.003)
Pan z magnitude 16.84 (0.004)
Pan y magnitude 16.98 (0.007)
E(B-V) 0.006

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.