All names: Gaia DR3 712697767767620224, Gaia EDR3 712697767767620224, Gaia DR2 712697767767620224, SDSS J085449.08+313353.5, USNO-B1.0 1215-00167233, LAMOST J085449.06+313353.3, USNO-A2.0 1200-06177575
| Parameter | Unit | Gaia EDR3 | Stilism | Guo et al. 2015 | Vincent et al. 2024 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 08 54 49.04 (0.07) | 08 54 49.04 | 08 54 49.10 (0.07) | |||
| Declination | 31 33 53.07 (0.05) | 31 33 53.07 | 31 33 53.68 (0.05) | |||
| Spectral type | DA | DA | DA | |||
| Effective temperature | [K] | 17219.0 (315) | 10726.0 (148) | |||
| log(g) | [cgs] | 7.63 (0.06) | 7.96 (0.02) | |||
| Mass | [M☉] | 0.44 (0.03) | 0.581 (0.02) | |||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 8.47 (0.1) | 8.47 | 8.47 (0.1) | ||
| Distance | [pc] | 118.06 (1) | 118.06 | 118.06 (1) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -45.815 (0.1) | -45.815 (0.1) | |||
| Proper motion (declination) | [mas/yr] | -37.949 (0.08) | -37.949 (0.08) | |||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | 17.70 | |||||
| V magnitude | ||||||
| R magnitude | 17.00 | |||||
| I magnitude | ||||||
| J magnitude | ||||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | 17.69 (0.01) | |||||
| g magnitude | 17.22 (0.004) | |||||
| r magnitude | 17.34 (0.005) | |||||
| i magnitude | 17.51 (0.006) | |||||
| z magnitude | 17.76 (0.02) | |||||
| G magnitude | 17.27 (0.003) | 17.27 | 17.27 (0.003) | |||
| BP magnitude | 17.32 (0.009) | |||||
| RP magnitude | 17.23 (0.01) | |||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.004 | |||||
* 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.