SDSS J074402.42+155112.8

All names: SDSS J074402.42+155112.9, Gaia DR2 3165716008997572352, Gaia EDR3 3165716008997572352, SDSS J074402.41+155112.8, Gaia DR3 3165716008997572352, GALEX J074402.4+155112, SDSS J074402.41+155112.9, SDSS J074402.42+155112.89, SDSS J074402.42+155112.8

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 07 44 02.41 (0.2) 07 44 02.42 07 44 02.41 (0.3) 07 44 02.43 (0.2)
Declination 15 51 12.84 (0.1) 15 51 12.89 15 51 12.84 (0.2) 15 51 12.98 (0.1)
Spectral type DA DA DA DA
Effective temperature [K] 17277.0 20431.0 (144)
log(g) [cgs] 7.71 8.11 (0.02)
Mass [M] 0.469 0.6809999999999999 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.0722
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] 2.56 (0.2) 2.52 (0.3) 2.56 (0.2)
Distance [pc] 390.81 (32) 396.11 (42) 390.81 (32)
Composition H
Proper motion (right ascension) [mas/yr] -16.58409954 (0.3) -16.52945966 (0.6) -16.584 (0.3)
Proper motion (declination) [mas/yr] -9.246800584 (0.2) -9.22376436 (0.4) -9.247 (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 18.50 (0.02) 18.52 (0.02) 18.50 (0.02)
g magnitude 18.41 (0.007) 18.43 (0.02) 18.41 (0.007)
r magnitude 18.76 (0.01) 18.78 (0.01) 18.76 (0.01)
i magnitude 19.05 (0.01) 19.05 (0.02) 19.05 (0.01)
z magnitude 19.27 (0.05) 19.28 (0.05) 19.27 (0.05)
G magnitude 18.61 (0.02) 18.66 18.61 (0.004)
BP magnitude 18.58 (0.02) 18.55
RP magnitude 18.77 (0.06) 18.85
Pan g magnitude 18.47 (0.005)
Pan r magnitude 18.80 (0.006)
Pan i magnitude 19.09 (0.006)
Pan z magnitude 19.35 (0.02)
Pan y magnitude 19.50 (0.05)
E(B-V) 0.018

* 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.