Gaia DR2 150577636388844160

All names: SDSS J042029.20+261755.3, Gaia DR2 150577636388844160, Gaia EDR3 150577636388844160, J0420+2617, WDJ042029.21+261755.39, WDJ042029.21+261755.38, Gaia DR3 150577636388844160, SDSS J042029.19+261755.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 04 20 29.13 (0.1) 04 20 29.13 04 20 29.13 04 20 29.21 (0.1) 04 20 29.13
Declination 26 17 54.92 (0.09) 26 17 54.93 26 17 54.92 26 17 55.39 (0.09) 26 17 54.93
Spectral type DA DA DA DA DA
Effective temperature [K] 6513.0 (42) 6542.0 (40) 6512.0 (42) 6519.0 6271.0 6652.0 (102)
log(g) [cgs] 7.96 (0.02) 7.96 (0.02) 7.94 (0.02) 7.94 7.81 8.01 (0.03)
Mass [M] 0.565 (0.02) 0.568 (0.02) 0.556 (0.02) 0.557 0.464 0.595 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 1.7700 1.6610 1.6300
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] 11.25 (0.2) 11.15 (0.2) 11.15 (0.2) 11.25 11.25 (0.2) 11.15 (0.2)
Distance [pc] 88.86 (1) 89.69 (2) 89.67 (2) 88.86 88.86 (1) 89.67 (2)
Composition H H
Proper motion (right ascension) [mas/yr] -69.75369202 (0.2) -69.28690169 (0.4) -69.754 (0.2) -69.28690169
Proper motion (declination) [mas/yr] -29.35437072 (0.2) -29.55519043 (0.3) -29.354 (0.2) -29.55519043
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 17.67 (0.04)
H magnitude
K magnitude 17.38 (0.07)
u magnitude 19.34 (0.02) 19.34 (0.02) 19.30 (0.03)
g magnitude 18.65 (0.008) 18.65 (0.008)
r magnitude 18.39 (0.008) 18.36 (0.008)
i magnitude 18.30 (0.009) 18.30 (0.009)
z magnitude 18.36 (0.03) 18.29 (0.03)
G magnitude 18.38 (0.02) 18.40 18.38 18.38 (0.003) 18.40
BP magnitude 18.60 (0.02) 18.60 18.60
RP magnitude 18.02 (0.02) 17.99 17.99
Pan g magnitude 18.62 (0.007) 18.62 (0.006)
Pan r magnitude 18.40 (0.007) 18.40 (0.007)
Pan i magnitude 18.33 (0.005) 18.33 (0.005)
Pan z magnitude 18.33 (0.02) 18.33 (0.02)
Pan y magnitude 18.36 (0.01) 18.36 (0.01)
E(B-V) 0.007

* 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.