SDSS J124547.11+082231.4

All names: Gaia DR3 3710635414832030976, SDSS J124547.10+082231.4, Gaia EDR3 3710635414832030976, SDSS J124547.11+082231.48, Gaia DR2 3710635414832030976, J1245+0822, SDSS J124547.11+082231.4

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Blouin 2020 Coutu et al. 2019 MWDD H Gaia DR2 Hollands et al. 2017 Stilism Kepler et al. 2015 Simbad
Right ascension 12 45 47.11 (0.8) 12 45 47.11 12 45 47.11 12 45 47.11 (1) 12 45 47.11 (0.8)
Declination 08 22 31.23 (0.5) 08 22 31.48 08 22 31.51 08 22 31.24 (0.7) 08 22 31.69 (0.5)
Spectral type DZ DZ DZ DZ DZ DZ
Effective temperature [K] 6074.0 (130) 5924.0 (159) 6999.0 6360.0 (190) 5940.0 (350)
log(g) [cgs] 8.00 7.30 7.76 8.00 (0)
Mass [M] 0.251 0.46
log(Luminosity) [L]
Cooling age [Gyr] 1.2000 1.1010 2.7000
log(H/He) <-3.3056
log(C/He)
log(Ca/He) -8.3 (0.2) -9.1621 (0.2) -8.1 -8.644 (0.05)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He) -8.68
log(Mg/He) -7.0 (0.2) -7.34
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He) -7.6 (0.2) -7.59
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 3.21 (1) 3.25 3.25 (1) 3.21 (1)
Distance [pc] 311.38 (137) 308.13 (132) 308.13 (132) 236.00 (31) 311.38 (137)
Composition He He He He He
Proper motion (right ascension) [mas/yr] 1.427880985 (2) 1.641834937 (3) 1.428 (2)
Proper motion (declination) [mas/yr] -29.19379919 (1) -28.54529971 (1) -29.194 (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 22.71 (0.3) 22.56 (0.3) 22.56 (0.3) 22.71 (0.3) 22.71 (0.3)
g magnitude 20.92 (0.03) 20.94 (0.04) 20.94 (0.04) 20.92 (0.03) 20.92 (0.03)
r magnitude 20.49 (0.03) 20.52 (0.03) 20.52 (0.03) 20.49 (0.03) 20.49 (0.03)
i magnitude 20.45 (0.04) 20.50 (0.04) 20.50 (0.04) 20.45 (0.04) 20.45 (0.04)
z magnitude 21.04 (0.3) 20.97 (0.2) 20.97 (0.2) 21.04 (0.2) 21.04 (0.2)
G magnitude 20.59 (0.1) 20.64 20.59 (0.007)
BP magnitude 20.55 (0.1) 20.66
RP magnitude 20.25 (0.1) 20.03
Pan g magnitude 20.78 (0.02)
Pan r magnitude 20.48 (0.02)
Pan i magnitude 20.56 (0.02)
Pan z magnitude 20.66 (0.04)
Pan y magnitude 20.64 (0.2)
E(B-V) 0.022

* 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.