SDSS J124029.72-021801.0

All names: Gaia DR2 3683057567263198080, SDSS J124029.72-021801.0, SDSS J124029.72-021801.08, SDSS J124029.71-021801.0, Gaia EDR3 3683057567263198080, Gaia DR3 3683057567263198080

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 12 40 29.69 (1) 12 40 29.72 12 40 29.69 (2) 12 40 29.71 (1)
Declination -02 18 01.18 (0.5) -02 18 01.08 -02 18 01.17 (1) -02 18 01.04 (0.5)
Spectral type DA DA DA DA+MS
Effective temperature [K] 8599.0 8759.0 (154)
log(g) [cgs] 7.45 8.47 (0.2)
Mass [M] 0.332 0.885 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.5065
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] 2.37 (1) 1.87 (1) 2.37 (1)
Distance [pc] 422.04 (216) 535.27 (397) 422.05 (216)
Composition H
Proper motion (right ascension) [mas/yr] -21.49166671 (3) -20.30733824 (4) -21.492 (3)
Proper motion (declination) [mas/yr] -8.417416673 (2) -8.23131522 (2) -8.417 (2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 21.28 (0.09) 21.22 (0.08) 21.22 (0.08)
g magnitude 20.75 (0.03) 20.77 (0.03) 20.77 (0.03)
r magnitude 20.74 (0.04) 20.74 (0.04) 20.74 (0.04)
i magnitude 20.75 (0.06) 20.76 (0.06) 20.76 (0.06)
z magnitude 20.93 (0.3) 20.90 (0.3) 20.90 (0.3)
G magnitude 20.66 (0.09) 20.76 20.66 (0.008)
BP magnitude 20.71 (0.09) 20.46
RP magnitude 20.52 (0.1) 20.26
Pan g magnitude 20.75 (0.02)
Pan r magnitude 20.73 (0.02)
Pan i magnitude 20.81 (0.05)
Pan z magnitude 20.76 (0.03)
Pan y magnitude
E(B-V) 0.024

* 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.