SDSS J142018.90+324921.1

All names: SDSS J142018.88+324921.0, Gaia DR3 1478072965823485952, Gaia DR2 1478072965823485952, SDSS J142018.89+324921.0, Gaia EDR3 1478072965823485952, GALEX J142018.8+324921, SDSS J142018.90+324921.1

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 20 18.86 (0.1) 14 20 18.90 14 20 18.86 (0.1) 14 20 18.86 14 20 18.91 (0.1) 14 20 18.90
Declination 32 49 21.15 (0.1) 32 49 21.09 32 49 21.15 (0.1) 32 49 21.15 32 49 21.13 (0.1) 32 49 21.08
Spectral type DC DC DC DC DC DC
Effective temperature [K] 9289.0 9123.0 8541.0 (250) 10098.0 (32)
log(g) [cgs] 8.22 8.15 7.97 (0.06) 9.12 (0.7)
Mass [M] 0.737 0.672 0.56 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 1.0090 0.9915
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 6.29 (0.2) 6.14 (0.2) 6.29 6.29 (0.2)
Distance [pc] 158.87 (5) 162.84 (6) 158.87 158.87 (5)
Composition
Proper motion (right ascension) [mas/yr] -37.46894284 (0.1) -37.5762184 (0.2) -37.469 (0.1)
Proper motion (declination) [mas/yr] 1.55724726 (0.2) 2.064482931 (0.4) 1.557 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.12 (0.02) 19.12 (0.02) 19.11 (0.03)
g magnitude 18.86 (0.009) 18.86 (0.009) 18.86 (0.02)
r magnitude 18.89 (0.01) 18.89 (0.01) 18.90 (0.02)
i magnitude 18.96 (0.01) 18.96 (0.01) 18.98 (0.01)
z magnitude 19.13 (0.05) 19.13 (0.05) 19.15 (0.05)
G magnitude 18.81 (0.02) 18.84 18.81 18.81 (0.003)
BP magnitude 18.89 (0.02) 18.84
RP magnitude 18.65 (0.02) 18.64
Pan g magnitude 18.85 (0.008)
Pan r magnitude 18.90 (0.009)
Pan i magnitude 19.00 (0.005)
Pan z magnitude 19.11 (0.01)
Pan y magnitude 19.25 (0.05)
E(B-V) 0.013

* Constant surface field

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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.