SDSS J074539.86+221507.9

All names: Gaia DR3 674764341731562880, Gaia EDR3 674764341731562880, SDSS J074539.86+221507.9, GALEX J074539.8+221509, SDSS J074539.86+221507.92, Gaia DR2 674764341731562880

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 45 39.92 (0.4) 07 45 39.86 07 45 39.91 (0.5) 07 45 39.86 (0.4)
Declination 22 15 07.56 (0.3) 22 15 07.91 22 15 07.57 (0.3) 22 15 07.96 (0.3)
Spectral type DA DA DA DA
Effective temperature [K] 7605.0 7500.0 (109)
log(g) [cgs] 8.20 7.88 (0.2)
Mass [M] 0.719 0.53 (0.08)
log(Luminosity) [L]
Cooling age [Gyr] 1.6980
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] 5.84 (0.4) 6.32 (0.6) 5.84 (0.4)
Distance [pc] 171.18 (12) 158.19 (14) 171.19 (12)
Composition H
Proper motion (right ascension) [mas/yr] 51.60260853 (0.5) 52.55127187 (1) 51.603 (0.5)
Proper motion (declination) [mas/yr] -24.82640555 (0.3) -23.68323157 (0.7) -24.826 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.02 (0.04) 20.03 (0.04) 20.02 (0.04)
g magnitude 19.53 (0.01) 19.53 (0.02) 19.53 (0.01)
r magnitude 19.45 (0.02) 19.44 (0.02) 19.45 (0.01)
i magnitude 19.50 (0.02) 19.51 (0.03) 19.50 (0.02)
z magnitude 19.40 (0.05) 19.38 (0.05) 19.40 (0.06)
G magnitude 19.42 (0.06) 19.46 19.42 (0.006)
BP magnitude 19.57 (0.06) 19.41
RP magnitude 19.30 (0.07) 19.16
Pan g magnitude 19.55 (0.01)
Pan r magnitude 19.46 (0.009)
Pan i magnitude 19.49 (0.02)
Pan z magnitude 19.51 (0.04)
Pan y magnitude 19.54 (0.07)
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.