All names: GALEX J030945.7+330025, LAMOST J030945.71+330025.0, Gaia DR2 135880125158674304, Gaia DR3 135880125158674304, Gaia EDR3 135880125158674304, LAMOST J030945.71+330024.9
| Parameter | Unit | Gaia EDR3 | Stilism | Guo et al. 2015 | Vincent et al. 2024 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 03 09 45.71 (0.06) | 03 09 45.71 | 03 09 45.70 (0.06) | |||
| Declination | 33 00 24.93 (0.05) | 33 00 24.93 | 33 00 25.34 (0.05) | |||
| Spectral type | DA | DA | DA | |||
| Effective temperature | [K] | 16825.0 (488) | 15510.0 (366) | |||
| log(g) | [cgs] | 8.41 (0.09) | 7.93 (0.02) | |||
| Mass | [M☉] | 0.87 (0.06) | 0.576 (0.02) | |||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 6.91 (0.07) | 6.91 | 6.91 (0.07) | ||
| Distance | [pc] | 144.78 (1) | 144.78 | 144.78 (1) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 3.88 (0.08) | 3.88 (0.08) | |||
| Proper motion (declination) | [mas/yr] | -25.461 (0.07) | -25.461 (0.07) | |||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | ||||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | ||||||
| g magnitude | 16.78 | |||||
| r magnitude | 17.09 | |||||
| i magnitude | 17.30 | |||||
| z magnitude | ||||||
| G magnitude | 16.99 (0.003) | 16.99 | 16.99 (0.003) | |||
| BP magnitude | 16.97 (0.007) | |||||
| RP magnitude | 17.09 (0.01) | |||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.042 | |||||
* 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.