SDSS J074508.99+281645.9

All names: Gaia DR3 878354175338239744, SDSS J074508.99+281645.9, SDSS J074508.98+281645.8, Gaia EDR3 878354175338239744, Gaia DR2 878354175338239744

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 07 45 08.98 (0.5) 07 45 08.98 07 45 08.98 (0.8) 07 45 08.98 (0.5) 07 45 08.99
Declination 28 16 45.84 (0.4) 28 16 45.89 28 16 45.84 (0.7) 28 16 45.95 (0.4) 28 16 45.92
Spectral type DA DA DA DA
Effective temperature [K] 19684.0 24963.0 (482)
log(g) [cgs] 7.38 7.64 (0.07)
Mass [M] 0.354
log(Luminosity) [L]
Cooling age [Gyr] 0.0127
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] 1.54 (0.5) 1.10 (1) 1.54 (0.5)
Distance [pc] 650.45 (220) 906.02 (853) 650.45 (220)
Composition H
Proper motion (right ascension) [mas/yr] -5.768183478 (0.7) -5.987486876 (2) -5.768 (0.7)
Proper motion (declination) [mas/yr] -7.091173982 (0.4) -7.336822135 (0.9) -7.091 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.58 (0.03) 19.58 (0.03) 19.56 (0.04)
g magnitude 19.60 (0.01) 19.60 (0.01) 19.59 (0.02)
r magnitude 19.98 (0.02) 19.98 (0.02) 19.93 (0.03)
i magnitude 20.30 (0.04) 20.30 (0.04) 20.27 (0.05)
z magnitude 20.42 (0.1) 20.42 (0.1) 20.39 (0.2)
G magnitude 19.80 (0.08) 19.84 19.80 (0.006)
BP magnitude 19.84 (0.08) 18.96
RP magnitude 20.03 (0.2) 19.80
Pan g magnitude 19.50 (0.04)
Pan r magnitude 19.94 (0.02)
Pan i magnitude 20.26 (0.03)
Pan z magnitude 20.35 (0.05)
Pan y magnitude
E(B-V) 0.033

* 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.