All names: 2MASS J20453123+1526433, SDSS J204531.21+152643.1, WDJ204531.24+152643.42, Gaia DR2 1762899533150392704, SDSS J204531.20+152643.0, GALEX J204531.2+152643, SDSS J204531.22+152643.2, TIC 341238909, Gaia EDR3 1762899533150392704, Gaia DR3 1762899533150392704, SDSS J204531.21+152643.0, J2045+1526
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Kleinman et al. 2013 | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 20 45 31.18 (0.04) | 20 45 31.22 | 20 45 31.19 (0.06) | 20 45 31.18 | 20 45 31.24 (0.04) | 20 45 31.19 | 20 45 31.21 | |||||||
Declination | 15 26 42.68 (0.03) | 15 26 43.25 | 15 26 42.70 (0.05) | 15 26 42.68 | 15 26 43.42 (0.03) | 15 26 42.70 | 15 26 43.08 | |||||||
Spectral type | DA | DA | DA | DA | DA | DA | DA | |||||||
Effective temperature | [K] | 13026.0 (166) | 13044.0 (165) | 12910.0 | 13331.0 (136) | 13684.0 (74) | ||||||||
log(g) | [cgs] | 8.15 (0.009) | 8.13 (0.01) | 8.12 | 8.16 (0.009) | 8.18 (0.02) | ||||||||
Mass | [M☉] | 0.699 (0.008) | 0.688 (0.009) | 0.683 | 0.708 (0.008) | 0.711 (0.01) | ||||||||
log(Luminosity) | [L☉] | |||||||||||||
Cooling age | [Gyr] | 0.3659 | ||||||||||||
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] | 11.71 (0.06) | 11.56 (0.08) | 11.71 | 11.71 (0.06) | 11.56 (0.08) | ||||||||
Distance | [pc] | 85.42 (0.4) | 86.48 (0.6) | 85.42 | 85.42 (0.4) | 86.48 (0.6) | ||||||||
Composition | H | H | ||||||||||||
Proper motion (right ascension) | [mas/yr] | -50.96578552 (0.05) | -50.90581845 (0.1) | -50.966 (0.05) | -50.90581845 | |||||||||
Proper motion (declination) | [mas/yr] | -46.66145773 (0.04) | -46.63035829 (0.08) | -46.661 (0.04) | -46.63035829 | |||||||||
Variability | ||||||||||||||
Magnetic | ||||||||||||||
Bd | [MG] | |||||||||||||
Infrared excess (disk) | ||||||||||||||
Binarity | ||||||||||||||
B magnitude | ||||||||||||||
V magnitude | ||||||||||||||
R magnitude | ||||||||||||||
I magnitude | ||||||||||||||
J magnitude | 16.50 (0.1) | |||||||||||||
H magnitude | ||||||||||||||
K magnitude | ||||||||||||||
u magnitude | 16.69 (0.007) | 16.69 (0.007) | 16.69 (0.007) | 16.69 (0.01) | ||||||||||
g magnitude | 16.32 (0.004) | 16.32 (0.004) | 16.32 (0.004) | 16.32 (0.01) | ||||||||||
r magnitude | 16.52 (0.004) | 16.52 (0.004) | 16.52 (0.004) | 16.54 (0) | ||||||||||
i magnitude | 16.77 (0.005) | 16.77 (0.005) | 16.77 (0.005) | 16.77 (0.01) | ||||||||||
z magnitude | 17.00 (0.01) | 17.00 (0.01) | 17.00 (0.01) | 17.01 (0.02) | ||||||||||
G magnitude | 16.43 (0.003) | 16.45 | 16.43 | 16.43 (0.003) | 16.45 | |||||||||
BP magnitude | 16.42 (0.003) | 16.42 | 16.42 | |||||||||||
RP magnitude | 16.48 (0.004) | 16.49 | 16.49 | |||||||||||
Pan g magnitude | 16.35 (0.007) | |||||||||||||
Pan r magnitude | 16.56 (0.002) | |||||||||||||
Pan i magnitude | 16.80 (0.004) | |||||||||||||
Pan z magnitude | 17.01 (0.004) | |||||||||||||
Pan y magnitude | 17.18 (0.007) | |||||||||||||
E(B-V) | 0.007 |
* 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.