WD 0143+138

All names: WD 0143+138, Gaia DR2 2587993017344962688, SDSS J014629.02+140438.3, WDJ014629.02+140438.33, LSPM J0146+1404, SDSS J014629.01+140438.2, EQ J0146+1404, USNO-B1.0 1040-00017442, J0146+1404, Gaia EDR3 2587993017344962688, Gaia DR3 2587993017344962688

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 Bergeron et al. 2022 MWDD H MWDD HE Gaia DR2 Stilism Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999) Vincent et al. 2023
Right ascension 01 46 29.29 (0.4) 01 46 29.02 01 46 29.29 (0.4) 01 46 29.02 (0.4) 01 46 29.29 01 46 29.11
Declination 14 04 39.15 (0.4) 14 04 38.29 14 04 39.13 (0.4) 14 04 38.33 (0.4) 14 04 39.13 14 04 34.68
Spectral type DC-IRfaint DC DC DC DC DC DC DA
Effective temperature [K] 4369.0 (74) 4439.0 (38) 4369.0 (74) 5933.0 5709.0
log(g) [cgs] 7.92 (0.06) 7.94 (0.07) 8.58 8.47
Mass [M] 0.521 (0.04) 0.53 (0.04) 0.521 (0.04) 0.967 0.878
log(Luminosity) [L]
Cooling age [Gyr] 6.4900 6.3290 5.5990 5.8060
log(H/He) -2.43 -2.52 -2.43
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] 12.26 (0.4) 12.12 (0.5) 12.12 (0.5) 12.26 (0.4) 12.12 (0.5)
Distance [pc] 81.59 (3) 82.51 (3) 82.52 (3) 81.59 (3) 82.52 (3)
Composition He
Proper motion (right ascension) [mas/yr] 253.0586466 (0.5) 252.6855942 (0.8) 253.059 (0.5) 252.6855942
Proper motion (declination) [mas/yr] 51.71595559 (0.6) 51.684052 (0.9) 51.716 (0.6) 51.684052
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.80
V magnitude
R magnitude 19.20
I magnitude
J magnitude 19.56 (0.05) 19.56 (0.05)
H magnitude 20.07 (0.1) 20.07 (0.1)
K magnitude
u magnitude 21.41 (0.1) 21.41 (0.03) 21.41 (0.1) 21.41 (0.1) 21.19
g magnitude 20.02 (0.02) 20.02 (0.02) 20.02 (0.02) 19.97
r magnitude 19.39 (0.01) 19.39 (0.01) 19.39 (0.01) 19.38
i magnitude 19.26 (0.02) 19.26 (0.02) 19.26 (0.02) 19.26
z magnitude 19.81 (0.1) 19.80 (0.1) 19.80 (0.1) 19.70
G magnitude 19.52 (0.05) 19.55 19.52 (0.005) 19.55
BP magnitude 19.89 (0.05) 19.97 19.97
RP magnitude 19.02 (0.05) 19.14 19.14
Pan g magnitude 19.96 (0.03) 19.96 (0.03)
Pan r magnitude 19.46 (0.02) 19.46 (0.02)
Pan i magnitude 19.28 (0.03) 19.28 (0.02)
Pan z magnitude 19.45 (0.04) 19.45 (0.03)
Pan y magnitude 19.54 (0.04) 19.54 (0.03)
E(B-V) 0.009

* 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.