All names: Gaia DR2 1514736047908364928, Gaia EDR3 1514736047908364928, SDSS J123658.20+330759.5, Gaia DR3 1514736047908364928, Ton 625, SDSS J123658.23+330759.3, WDJ123658.25+330759.19, GALEX J123658.3+330759, SDSS J123658.24+330759.3, J1236+3307, CSO 903
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | 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 36 58.18 (0.08) | 12 36 58.24 | 12 36 58.18 (0.1) | 12 36 58.18 | 12 36 58.25 (0.08) | 12 36 58.18 | 12 36 58.24 | ||||||||
Declination | 33 07 59.59 (0.07) | 33 07 59.33 | 33 07 59.58 (0.07) | 33 07 59.59 | 33 07 59.19 (0.07) | 33 07 59.58 | 33 07 59.32 | ||||||||
Spectral type | DC | DC | DC | DC | DC | DC | DC | DC | |||||||
Effective temperature | [K] | 9064.0 (72) | 9163.0 (67) | 9556.0 | 9374.0 | 9290.0 (199) | 10186.0 (95) | ||||||||
log(g) | [cgs] | 8.11 (0.01) | 8.14 (0.02) | 8.34 | 8.27 | 8.20 (0.03) | 9.62 (0.3) | ||||||||
Mass | [M☉] | 0.644 (0.01) | 0.664 (0.01) | 0.816 | 0.75 | 0.703 (0.03) | |||||||||
log(Luminosity) | [L☉] | ||||||||||||||
Cooling age | [Gyr] | 1.0000 | 1.1570 | 1.0820 | |||||||||||
log(H/He) | -4.2 | -4.2 | |||||||||||||
log(C/He) | |||||||||||||||
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] | 11.41 (0.1) | 11.48 (0.1) | 11.48 (0.1) | 11.41 | 11.41 (0.1) | 11.48 (0.1) | ||||||||
Distance | [pc] | 87.65 (0.8) | 87.11 (1) | 87.14 (1) | 87.65 | 87.65 (0.8) | 87.14 (1) | ||||||||
Composition | He | ||||||||||||||
Proper motion (right ascension) | [mas/yr] | -53.72459532 (0.09) | -53.89310461 (0.2) | -53.725 (0.09) | -53.89310461 | ||||||||||
Proper motion (declination) | [mas/yr] | 25.15890271 (0.09) | 25.15605852 (0.2) | 25.159 (0.09) | 25.15605852 | ||||||||||
Variability | |||||||||||||||
Magnetic | |||||||||||||||
Bd | [MG] | ||||||||||||||
Infrared excess (disk) | |||||||||||||||
Binarity | |||||||||||||||
B magnitude | 16.40 | ||||||||||||||
V magnitude | |||||||||||||||
R magnitude | |||||||||||||||
I magnitude | |||||||||||||||
J magnitude | 17.46 (0.03) | ||||||||||||||
H magnitude | |||||||||||||||
K magnitude | |||||||||||||||
u magnitude | 17.73 (0.01) | 17.73 (0.01) | 17.73 (0.01) | 17.73 (0.01) | 17.75 (0.02) | ||||||||||
g magnitude | 17.53 (0.005) | 17.53 (0.005) | 17.53 (0.005) | 17.56 (0.02) | |||||||||||
r magnitude | 17.61 (0.006) | 17.61 (0.006) | 17.61 (0.006) | 17.65 (0.02) | |||||||||||
i magnitude | 17.71 (0.007) | 17.71 (0.007) | 17.71 (0.007) | 17.72 (0.02) | |||||||||||
z magnitude | 17.87 (0.02) | 17.87 (0.02) | 17.87 (0.02) | 17.90 (0.02) | |||||||||||
G magnitude | 17.54 (0.009) | 17.57 | 17.54 | 17.54 (0.003) | 17.57 | ||||||||||
BP magnitude | 17.62 (0.009) | 17.57 | 17.57 | ||||||||||||
RP magnitude | 17.45 (0.01) | 17.45 | 17.45 | ||||||||||||
Pan g magnitude | 17.58 (0.005) | 17.58 (0.005) | |||||||||||||
Pan r magnitude | 17.63 (0.005) | 17.63 (0.005) | |||||||||||||
Pan i magnitude | 17.75 (0.004) | 17.75 (0.004) | |||||||||||||
Pan z magnitude | 17.91 (0.008) | 17.91 (0.008) | |||||||||||||
Pan y magnitude | 17.98 (0.01) | 17.98 (0.01) | |||||||||||||
E(B-V) | 0.003 |
* Constant surface field
Spectra without link are available upon request
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.