WD 1342+443

All names: SDSS J134426.85+440833.2, Gaia DR2 1503131458592587264, SDSS J134426.84+440833.3, FBS B 327, WIRED J134426.84+440833.2, WD 1342+443, SDSS J134426.84+440833.2, Gaia DR3 1503131458592587264, WD 1342+442, SDSS J134426.85+440833.3, PG 1342+444, FBS 1342+443, GALEX J134426.9+440833, Gaia EDR3 1503131458592587264

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Gianninas et al. 2011 Tremblay et al. 2011 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 13 44 26.85 (0.04) 13 44 26.85 13 44 26.85 (0.05) 13 44 26.85 13 44 26.85 (0.04) 13 44 26.85 13 44 27.36 13 44 26.85
Declination 44 08 33.15 (0.05) 44 08 33.29 44 08 33.16 (0.05) 44 08 33.15 44 08 33.30 (0.05) 44 08 33.28 44 08 34.44 44 08 33.30
Spectral type DA DA DA DA DA DA.7 DA DA1 DAO DA
Effective temperature [K] 76759.0 (1671) 28452.0 74830.0 (2418) 104840.0 (5620) 67659.0 (8322) 100000.0 (198) 100000.0 (992)
log(g) [cgs] 7.73 (0.07) 7.04 7.90 (0.1) 7.71 (0.1) 7.82 (3) 8.14 (0.2) 7.66 (0.1)
Mass [M] 0.63 (0.02) 0.318 0.7 (0.04) 0.7 (0.04) 0.671 (318)
log(Luminosity) [L] 1.00 (0.07)
Cooling age [Gyr] 0.0005 (0.0001) 0.0108 0.0003
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] 2.34 (0.06) 2.29 (0.07) 2.34 2.34 (0.06)
Distance [pc] 426.76 (11) 437.15 (14) 414.00 426.76 426.77 (11)
Composition H H H H
Proper motion (right ascension) [mas/yr] -2.711801851 (0.05) -2.828364233 (0.09) -2.712 (0.05) 4.1
Proper motion (declination) [mas/yr] -9.245593074 (0.06) -9.312411383 (0.1) -9.246 (0.06) -8.3
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.15
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 15.96 (0.005) 15.96 (0.005) 15.98 (0.03) 15.98 16.00 (0.03)
g magnitude 16.34 (0.003) 16.34 (0.003) 16.39 (0.03) 16.39 16.39 (0.03)
r magnitude 16.87 (0.004) 16.87 (0.004) 16.91 (0.01) 16.91 16.91 (0.01)
i magnitude 17.25 (0.006) 17.25 (0.006) 17.26 (0.02) 17.26 17.25 (0.02)
z magnitude 17.55 (0.02) 17.55 (0.02) 17.59 (0.02) 17.59 17.58 (0.02)
G magnitude 16.63 (0.003) 16.66 16.63 16.63 (0.003)
BP magnitude 16.46 (0.003) 16.41
RP magnitude 16.95 (0.006) 16.95
Pan g magnitude 16.46 (0.008)
Pan r magnitude 16.91 (0.004)
Pan i magnitude 17.29 (0.005)
Pan z magnitude 17.57 (0.007)
Pan y magnitude 17.70 (0.02)
E(B-V) 0.018

* 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.