SDSS J122617.41+400146.9

All names: SDSS J122617.41+400146.9, GALEX J122617.4+400147, Gaia DR2 1533094314384009600, Gaia EDR3 1533094314384009600, Gaia DR3 1533094314384009600, SDSS J122617.42+400146.9

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 26 17.28 (0.1) 12 26 17.42 12 26 17.28 (0.1) 12 26 17.28 12 26 17.46 (0.1) 12 26 17.42
Declination 40 01 46.95 (0.1) 40 01 46.94 40 01 46.95 (0.1) 40 01 46.95 40 01 46.93 (0.1) 40 01 46.93
Spectral type DA DA DA DA DA
Effective temperature [K] 8106.0 8465.0 (222) 8223.0 (64)
log(g) [cgs] 7.97 8.01 (0.05) 8.02 (0.1)
Mass [M☉] 0.578 0.604 (0.04) 0.607 (0.07)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.9953
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] 6.77 (0.2) 6.97 (0.2) 6.77 6.77 (0.2)
Distance [pc] 147.74 (4) 143.51 (4) 147.74 147.74 (4)
Composition H
Proper motion (right ascension) [mas/yr] -134.7255363 (0.1) -134.7083881 (0.2) -134.726 (0.1)
Proper motion (declination) [mas/yr] 1.620057348 (0.2) 1.340831032 (0.2) 1.62 (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 19.12 (0.02) 19.12 (0.03) 19.13 (0.03)
g magnitude 18.71 (0.008) 18.71 (0.008) 18.71 (0.02)
r magnitude 18.70 (0.009) 18.70 (0.009) 18.69 (0.01)
i magnitude 18.72 (0.01) 18.72 (0.01) 18.72 (0.02)
z magnitude 18.82 (0.04) 18.82 (0.04) 18.82 (0.05)
G magnitude 18.64 (0.02) 18.66 18.64 18.64 (0.003)
BP magnitude 18.74 (0.02) 18.73
RP magnitude 18.44 (0.02) 18.43
Pan g magnitude 18.73 (0.01)
Pan r magnitude 18.70 (0.01)
Pan i magnitude 18.74 (0.008)
Pan z magnitude 18.84 (0.008)
Pan y magnitude 18.87 (0.02)
E(B-V) 0.006

* 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.