SDSS J124926.17+280058.3

All names: WDJ124926.17+280058.21, Gaia DR2 3961998375830065152, Gaia EDR3 3961998375830065152, SDSS J124926.17+280058.3, J1249+2800, SDSS J124926.17+280058.4, Gaia DR3 3961998375830065152

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Caron et al. 2023 Coutu et al. 2019 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 49 26.15 (0.1) 12 49 26.18 12 49 26.17 12 49 26.15 (0.2) 12 49 26.15 12 49 26.17 (0.1) 12 49 26.15 12 49 26.17
Declination 28 00 58.67 (0.1) 28 00 58.35 28 00 58.21 28 00 58.65 (0.1) 28 00 58.67 28 00 58.21 (0.1) 28 00 58.65 28 00 58.36
Spectral type DQ DQ DC DC DC DC
Effective temperature [K] 7468.0 (65) 7482.0 (167) 8163.0 7840.0 7561.0 (231) 10082.0 (8)
log(g) [cgs] 8.22 (0.03) 8.23 8.45 8.36 8.20 (0.05) 9.75 (0.3)
Mass [M] 0.713 (0.03) 0.7202 0.881 0.805 0.702 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 1.9400 1.9400 2.3990 2.3070
log(H/He)
log(C/He) -6.4 -6.3711 (0.2)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
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)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 10.37 (0.2) 10.72 (0.3) 10.72 10.72 (0.3) 10.37 10.37 (0.2) 10.72 (0.3)
Distance [pc] 96.42 (2) 93.28 (3) 93.29 (3) 93.29 (3) 96.42 96.42 (2) 93.29 (3)
Composition He He
Proper motion (right ascension) [mas/yr] -19.03180536 (0.2) -18.90865052 (0.3) -19.032 (0.2) -18.90865052
Proper motion (declination) [mas/yr] 28.70601998 (0.2) 28.51697159 (0.2) 28.706 (0.2) 28.51697159
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 18.05 (0.03)
H magnitude 18.00 (0.06)
K magnitude 17.86 (0.1)
u magnitude 18.90 (0.02) 18.88 (0.02) 18.90 (0.02) 18.90 (0.02) 18.93 (0.03)
g magnitude 18.52 (0.008) 18.52 (0.008) 18.52 (0.008) 18.55 (0.02)
r magnitude 18.45 (0.008) 18.45 (0.008) 18.45 (0.008) 18.46 (0.02)
i magnitude 18.47 (0.01) 18.47 (0.01) 18.47 (0.01) 18.49 (0.02)
z magnitude 18.63 (0.03) 18.63 (0.03) 18.63 (0.03) 18.65 (0.04)
G magnitude 18.41 (0.02) 18.45 18.41 18.41 (0.003) 18.45
BP magnitude 18.57 (0.02) 18.53 18.53
RP magnitude 18.21 (0.02) 18.18 18.18
Pan g magnitude 18.52 (0.01) 18.52 (0.01)
Pan r magnitude 18.45 (0.005) 18.45 (0.006)
Pan i magnitude 18.51 (0.008) 18.51 (0.006)
Pan z magnitude 18.59 (0.009) 18.59 (0.008)
Pan y magnitude 18.69 (0.02) 18.69 (0.02)
E(B-V) 0.003

* 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.