SDSS J142826.20+390857.3

All names: SDSS J142826.20+390857.30, Gaia DR2 1487725818922348160, Gaia EDR3 1487725818922348160, Gaia DR3 1487725818922348160, SDSS J142826.20+390857.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Kepler et al. 2015 Simbad
Right ascension 14 28 26.21 (0.9) 14 28 26.20 14 28 26.21 (1) 14 28 26.20 (0.9)
Declination 39 08 57.40 (1) 39 08 57.32 39 08 57.41 (1) 39 08 57.43 (1)
Spectral type DA DAH: DAH: DAH
Effective temperature [K] 8838.8 (413) 9318.0 9718.0 (199)
log(g) [cgs] 8.45 (0.2) 8.53 8.54 (0.2)
Mass [M] 0.8821947849601612 (0.5) 0.936
log(Luminosity) [L]
Cooling age [Gyr] 1.9230
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] 2.89 (1) 3.10 (2) 2.89 (1)
Distance [pc] 346.59 (163) 322.21 (168) 346.58 (163)
Composition H
Proper motion (right ascension) [mas/yr] 6.517522437 (1) 8.727906999 (2) 6.518 (1)
Proper motion (declination) [mas/yr] -1.715820594 (2) 0.310997417 (4) -1.716 (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 21.48 (0.1) 21.45 (0.1) 21.45 (0.1)
g magnitude 20.88 (0.03) 20.88 (0.04) 20.88 (0.04)
r magnitude 20.84 (0.04) 20.87 (0.05) 20.87 (0.05)
i magnitude 21.00 (0.07) 21.01 (0.07) 21.01 (0.07)
z magnitude 21.09 (0.2) 21.11 (0.2) 21.11 (0.2)
G magnitude 20.87 (0.1) 20.94 20.87 (0.01)
BP magnitude 20.76 (0.1) 20.50
RP magnitude 20.30 (0.2) 20.51
Pan g magnitude 20.90 (0.04)
Pan r magnitude 20.90 (0.05)
Pan i magnitude 21.08 (0.03)
Pan z magnitude 21.11 (0.04)
Pan y magnitude
E(B-V) 0.021

* 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.