SDSS J074853.07+302543.5

All names: WIRED J074853.07+302543.5, ** SLN 10A, SDSS J074853.08+302543.6, SDSS J074853.07+302543.5, Gaia DR2 879036662822100224, WD 0745+305, Gaia EDR3 879036662822100224, WDS J07489+3026A, Gaia DR3 879036662822100224

Parameter Unit Gaia EDR3 SDSS DR12 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Ferrario et al. 2015 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 07 48 53.07 (0.2) 07 48 53.08 07 48 53.07 (0.3) 07 48 53.07 07 48 53.08 (0.2) 07 48 53.08 07 48 52.85 07 48 53.08
Declination 30 25 43.31 (0.1) 30 25 43.58 30 25 43.32 (0.2) 30 25 43.31 30 25 43.59 (0.1) 30 25 43.55 30 25 39.72 30 25 43.56
Spectral type DAH DA DA DA: DAH DAH DAH DAH DAH
Effective temperature [K] 23077.7 (1810) 23488.0 21000.0 (2000) 21913.0 (1967) 29354.0 (137) 28932.0 (116)
log(g) [cgs] 8.38 (0.5) 8.41 8.34 (0.08) 9.00 (0.002) 9.73 (0.04)
Mass [M] 0.8632434075257925 (0.6) 0.877 0.81 (0.09) 0.835 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.0974
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] 5.20 (0.2) 5.10 (0.4) 5.20 5.20 (0.2)
Distance [pc] 192.20 (8) 195.97 (16) 192.20 192.20 (8)
Composition H
Proper motion (right ascension) [mas/yr] -9.923091759 (0.2) -9.780533928 (0.6) -9.923 (0.2) 6.3
Proper motion (declination) [mas/yr] -17.71968625 (0.1) -17.71848984 (0.4) -17.72 (0.1) -20.8
Variability
Magnetic yes yes yes yes
Bd [MG] 8.86852104614212 11.4
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.35 (0.009) 17.35 (0.009) 17.39 (0.07) 17.38 17.41 (0.07)
g magnitude 17.41 (0.005) 17.41 (0.005) 17.58 (0.05) 17.57 17.59 (0.05)
r magnitude 17.82 (0.006) 17.82 (0.006) 17.87 (0.05) 17.87 17.88 (0.05)
i magnitude 18.20 (0.009) 18.20 (0.009) 18.49 (0.1) 18.49 18.49 (0.1)
z magnitude 18.34 (0.03) 18.34 (0.03) 18.55 (0.06) 18.55 18.57 (0.06)
G magnitude 17.72 (0.03) 17.71 17.72 17.72 (0.004)
BP magnitude 17.36 (0.03) 17.30
RP magnitude 17.65 (0.04) 17.68
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.011

* 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.