All names: SDSS J092512.06+314834.2, Gaia DR3 700583559107792000, GALEX J092512.0+314834, TON415, Ton 415, Gaia DR2 700583559107792000, Gaia DR3 700583589171062528, TIC 307913855, Gaia EDR3 700583589171062528, CSO 14, 2MASS J09251207+3148345
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Vincent et al. 2024 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 09 25 05.44 (0.2) | 09 25 12.04 | 09 25 05.44 | 09 25 12.06 (0.07) | ||
| Declination | 31 48 36.41 (0.2) | 31 48 34.13 | 31 48 36.41 | 31 48 34.24 (0.05) | ||
| Spectral type | sdB | DA | sdB | |||
| Effective temperature | [K] | 10568.0 (482) | ||||
| log(g) | [cgs] | 7.64 (0.1) | ||||
| Mass | [M☉] | 0.418 (0.08) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 3.41 (0.3) | 0.24 (0.2) | 3.41 | 0.09 (0.09) | |
| Distance | [pc] | 293.00 (26) | 4242.68 (2923) | 293.00 | 10593.22 (9920) | |
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -4.241 (0.3) | 0.403 (0.2) | 0.136 (0.08) | ||
| Proper motion (declination) | [mas/yr] | -19.757 (0.2) | -3.982 (0.1) | -3.732 (0.06) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | 16.00 | |||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | 16.31 (0.1) | 16.31 (0.1) | ||||
| H magnitude | 16.02 (0.2) | 16.02 (0.2) | ||||
| K magnitude | 15.85 (0.2) | 15.85 (0.2) | ||||
| u magnitude | 16.50 (0.006) | 16.51 (0.006) | ||||
| g magnitude | 16.46 (0.004) | 16.45 (0.004) | ||||
| r magnitude | 16.65 (0.004) | 16.65 (0.004) | ||||
| i magnitude | 16.75 (0.005) | 16.75 (0.005) | ||||
| z magnitude | 16.84 (0.01) | 16.85 (0.01) | ||||
| G magnitude | 18.85 (0.004) | 16.55 (0.001) | 18.85 | 16.52 (0.003) | ||
| BP magnitude | 18.91 (0.04) | 16.52 (0.007) | ||||
| RP magnitude | 18.82 (0.03) | 16.45 (0.005) | ||||
| Pan g magnitude | 16.53 (0.005) | |||||
| Pan r magnitude | 16.67 (0.004) | |||||
| Pan i magnitude | 16.78 (0.004) | |||||
| Pan z magnitude | 16.89 (0.003) | |||||
| Pan y magnitude | 16.92 (0.008) | |||||
| E(B-V) | 0.019 | |||||
* 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.