SDSS J074401.84+145346.7

All names: SDSS J074401.84+145346.8, Gaia DR2 3164757067355818624, Gaia EDR3 3164757067355818624, SDSS J074401.83+145346.7, Gaia DR3 3164757067355818624, SDSS J074401.85+145346.82, GALEX J074401.8+145347, SDSS J074401.84+145346.7, SDSS J074401.85+145346.8

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 07 44 01.82 (0.09) 07 44 01.84 07 44 01.82 (0.1) 07 44 01.82 07 44 01.84 (0.09)
Declination 14 53 46.81 (0.08) 14 53 46.78 14 53 46.81 (0.09) 14 53 46.81 14 53 46.72 (0.08)
Spectral type DA DA DA DA DA
Effective temperature [K] 19213.0 22847.0 (104) 18817.0 (871)
log(g) [cgs] 8.02 8.22 (0.02) 8.03 (0.05)
Mass [M] 0.636 0.747 (0.01) 0.638 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.0869
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] 4.92 (0.1) 4.80 (0.1) 4.92 4.92 (0.1)
Distance [pc] 203.22 (5) 208.18 (6) 203.22 203.21 (5)
Composition H
Proper motion (right ascension) [mas/yr] -18.66468985 (0.1) -18.53406131 (0.2) -18.665 (0.1)
Proper motion (declination) [mas/yr] 5.30621937 (0.1) 5.354856707 (0.2) 5.306 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.27 (0.009) 17.28 (0.01) 17.27 (0.009)
g magnitude 17.29 (0.005) 17.32 (0.01) 17.29 (0.005)
r magnitude 17.64 (0.006) 17.66 (0.01) 17.64 (0.006)
i magnitude 17.95 (0.008) 17.96 (0.01) 17.95 (0.008)
z magnitude 18.24 (0.02) 18.27 (0.03) 18.24 (0.02)
G magnitude 17.48 (0.008) 17.51 17.48 17.48 (0.003)
BP magnitude 17.41 (0.008) 17.35
RP magnitude 17.67 (0.02) 17.66
Pan g magnitude 17.32 (0.005)
Pan r magnitude 17.67 (0.004)
Pan i magnitude 17.99 (0.005)
Pan z magnitude 18.26 (0.006)
Pan y magnitude 18.39 (0.02)
E(B-V) 0.009

* 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.