SDSS J144345.34+440340.7

All names: SDSS J144345.34+440340.7, SDSS J144345.35+440340.8, Gaia EDR3 1493548390122165248, GALEX J144345.3+440341, Gaia DR3 1493548390122165248, Gaia DR2 1493548390122165248, WD 1441+442

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 43 45.33 (0.5) 14 43 45.35 14 43 45.34 (0.7) 14 43 45.35 (0.5) 14 43 45.34 14 43 45.46 14 43 45.35
Declination 44 03 40.95 (0.5) 44 03 40.77 44 03 40.95 (0.7) 44 03 40.82 (0.5) 44 03 40.80 44 03 38.52 44 03 40.81
Spectral type DA DA+M DA_auto DA DA+M: DA
Effective temperature [K] 23101.0 16656.0 (903) 16739.0 (1067)
log(g) [cgs] 9.12 8.85 (0.1) 9.04 (0.2)
Mass [M] 1.248
log(Luminosity) [L]
Cooling age [Gyr] 0.4215
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] 2.18 (0.6) 2.73 (0.9) 2.18 (0.6)
Distance [pc] 458.97 (131) 366.94 (124) 458.97 (131)
Composition H
Proper motion (right ascension) [mas/yr] -7.946463659 (0.6) -7.713818648 (1) -7.946 (0.6) -5.0
Proper motion (declination) [mas/yr] 7.874061368 (0.6) 6.32866201 (2) 7.874 (0.6) 8.6
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.47 (0.05) 20.45 (0.06) 20.48 (0.06) 20.47 20.49 (0.06)
g magnitude 20.36 (0.02) 20.36 (0.02) 20.38 (0.02) 20.37 20.38 (0.02)
r magnitude 20.62 (0.03) 20.64 (0.03) 20.64 (0.03) 20.63 20.63 (0.03)
i magnitude 20.85 (0.05) 20.86 (0.06) 20.84 (0.06) 20.84 20.85 (0.06)
z magnitude 21.30 (0.3) 21.33 (0.3) 21.35 (0.3) 21.35 21.34 (0.3)
G magnitude 20.49 (0.06) 20.57 20.49 (0.008)
BP magnitude 20.49 (0.06) 20.41
RP magnitude 20.50 (0.1) 20.45
Pan g magnitude 20.38 (0.03)
Pan r magnitude 20.60 (0.06)
Pan i magnitude 20.83 (0.03)
Pan z magnitude 21.04 (0.09)
Pan y magnitude
E(B-V) 0.022

* 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.