WD 1442+474

All names: Gaia DR3 1590192369827025152, USNO-A2.0 1350-08486817, GALEX J144418.2+471704, WIRED J144418.25+471704.2, SDSS J144418.26+471704.1, SDSS J144418.26+471704.2, WDJ144418.27+471704.25, 2MASS J14441833+4717036, SDSS J144418.27+471704.2, Gaia EDR3 1590192369827025152, CBS 283, J1444+4717, SDSS J144418.25+471704.2, WD 1442+474, Gaia DR2 1590192369827025152, TIC 116279992

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 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) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 44 18.28 (0.03) 14 44 18.27 14 44 18.27 (0.04) 14 44 18.28 14 44 18.27 (0.03) 14 44 18.27 14 44 18.26 14 44 18.26
Declination 47 17 03.80 (0.03) 47 17 04.19 47 17 03.82 (0.04) 47 17 03.80 47 17 04.26 (0.03) 47 17 03.82 47 17 04.20 47 17 04.21
Spectral type DA DA DA DA DA DA DA5.0 DA DA DA DA
Effective temperature [K] 9725.0 (48) 9221.0 (43) 9725.0 (48) 9721.0 9990.0 (152) 9741.0 (65) 9689.0 (20)
log(g) [cgs] 7.91 (0.009) 7.78 (0.009) 7.91 (0.009) 7.91 8.13 (0.07) 7.91 (0.01) 8.11 (0.02)
Mass [M] 0.546 (0.007) 0.476 (0.007) 0.547 (0.008) 0.547 0.68 (0.05) 0.548 (0.009) 0.662 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.5900 0.5776
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] 13.58 (0.04) 13.60 (0.05) 13.60 (0.05) 13.58 13.58 (0.04) 13.60 (0.05)
Distance [pc] 73.61 (0.2) 73.53 (0.3) 73.53 (0.2) 53.00 73.61 73.61 (0.2) 73.53 (0.2)
Composition H H H H
Proper motion (right ascension) [mas/yr] 6.04861621 (0.04) 6.112419514 (0.08) 6.049 (0.04) 6.112
Proper motion (declination) [mas/yr] -28.35588643 (0.04) -28.25208243 (0.07) -28.356 (0.04) -28.252
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.60 (0.3)
V magnitude
R magnitude 16.40 (0.3)
I magnitude
J magnitude 16.51 (0.1) 16.51 (0.1)
H magnitude 15.90 (0.05) 15.90 (0.05)
K magnitude 15.55 (0.08) 15.55 (0.08)
u magnitude 16.90 (0.007) 16.89 (0.007) 16.91 (0.007) 16.91 (0.007) 16.92 (0.02)
g magnitude 16.46 (0.004) 16.46 (0.004) 16.46 (0.004) 16.46 (0.02)
r magnitude 16.54 (0.004) 16.54 (0.004) 16.54 (0.004) 16.53 (0.01)
i magnitude 16.64 (0.005) 16.64 (0.005) 16.64 (0.005) 16.63 (0.01)
z magnitude 16.83 (0.009) 16.83 (0.009) 16.83 (0.009) 16.82 (0.02)
G magnitude 16.46 (0.004) 16.48 16.46 16.46 (0.003) 16.48
BP magnitude 16.53 (0.004) 16.51 16.51
RP magnitude 16.36 (0.003) 16.36 16.36
Pan g magnitude 16.47 (0.002) 16.47 (0.003)
Pan r magnitude 16.55 (0.005) 16.55 (0.004)
Pan i magnitude 16.68 (0.005) 16.68 (0.004)
Pan z magnitude 16.82 (0.004) 16.82 (0.005)
Pan y magnitude 16.94 (0.01) 16.94 (0.02)
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.