2MASS J07402413+2029372

All names: 2MASS J07402413+2029372, Gaia EDR3 672856143597851520, SDSS J074024.13+202936.9, TIC 70549080, SDSS J074024.13+202937.0, LAMOST J074024.22+202936.6, SDSS J074024.12+202936.9, GALEX J074024.2+202938, Gaia DR3 672856143597851520, Gaia DR2 672856143597851520

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Guo et al. 2015 Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 07 40 24.08 (0.05) 07 40 24.13 07 40 24.08 (0.07) 07 40 24.08 07 40 24.14 (0.05) 07 40 24.13
Declination 20 29 36.82 (0.04) 20 29 36.93 20 29 36.83 (0.05) 20 29 36.82 20 29 37.00 (0.04) 20 29 36.97
Spectral type DA DA DA DA DA DA
Effective temperature [K] 19173.0 23362.0 (295) 21995.0 (412) 22847.0 (114)
log(g) [cgs] 7.99 8.02 (0.04) 8.15 (0.02) 8.13 (0.02)
Mass [M] 0.618 0.64 (0.02) 0.718 (0.01) 0.698 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.0816
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] 9.62 (0.05) 9.53 (0.07) 9.62 9.62 (0.05)
Distance [pc] 103.90 (0.6) 104.93 (0.8) 103.90 103.90 (0.6)
Composition H
Proper motion (right ascension) [mas/yr] -56.64947703 (0.07) -56.7369899 (0.1) -56.649 (0.07)
Proper motion (declination) [mas/yr] -11.33412159 (0.05) -11.44761 (0.1) -11.334 (0.05)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 16.57 (0.1)
H magnitude 16.45 (0.3)
K magnitude
u magnitude 15.69 (0.005) 15.70 (0.005) 15.70 (0.01)
g magnitude 15.72 (0.003) 15.72 (0.003) 15.74 (0.01)
r magnitude 16.10 (0.004) 16.11 (0.004) 16.10 (0.01)
i magnitude 16.43 (0.005) 16.43 (0.005) 16.43 (0.01)
z magnitude 16.74 (0.01) 16.74 (0.01) 16.74 (0.02)
G magnitude 15.93 (0.002) 15.96 15.93 15.93 (0.003)
BP magnitude 15.85 (0.002) 15.81
RP magnitude 16.14 (0.004) 16.13
Pan g magnitude 15.81 (0.007)
Pan r magnitude 16.13 (0.002)
Pan i magnitude 16.43 (0.004)
Pan z magnitude 16.72 (0.02)
Pan y magnitude 16.90 (0.01)
E(B-V) 0.003

* 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.