All names: Gaia DR2 4422603179894097280, SDSS J154633.46+004655.5, SDSS J154633.47+004655.9, TIC 272567871, LAMOST J154633.46+004655.5, Gaia EDR3 4422603179894097280, SDSS J154633.46+004655.56, Gaia DR3 4422603179894097280, 2MASS J15463347+0046558, GALEX J154633.4+004655, SDSS J154633.48+004655.9
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Gaia DR2 | Stilism | Guo et al. 2015 | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 46 33.45 (0.05) | 15 46 33.47 | 15 46 33.46 (0.06) | 15 46 33.45 | 15 46 33.48 (0.05) | ||||||
| Declination | 00 46 55.27 (0.05) | 00 46 55.97 | 00 46 55.30 (0.05) | 00 46 55.27 | 00 46 55.98 (0.05) | ||||||
| Spectral type | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 19402.0 (54) | 16959.0 (384) | ||||||||
| log(g) | [cgs] | 7.59 (0.01) | 7.44 (0.02) | ||||||||
| Mass | [M☉] | 0.4639999999999999 (0.003) | 0.362 (0.01) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 5.49 (0.07) | 5.38 (0.08) | 5.49 | 5.49 (0.07) | ||||||
| Distance | [pc] | 182.27 (2) | 185.75 (3) | 182.27 | 182.27 (2) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -25.5275034 (0.08) | -25.3134805 (0.1) | -25.528 (0.08) | |||||||
| Proper motion (declination) | [mas/yr] | -44.44956994 (0.07) | -44.40979944 (0.1) | -44.45 (0.07) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.96 (0.02) | ||||||||||
| H magnitude | 16.98 (0.04) | ||||||||||
| K magnitude | 17.06 (0.08) | ||||||||||
| u magnitude | 16.67 (0.007) | 16.66 (0.01) | 16.67 (0.007) | ||||||||
| g magnitude | 16.46 (0.004) | 16.49 (0.01) | 16.46 (0.004) | ||||||||
| r magnitude | 16.79 (0.005) | 16.80 (0.01) | 16.79 (0.005) | ||||||||
| i magnitude | 17.08 (0.005) | 17.07 (0.01) | 17.08 (0.005) | ||||||||
| z magnitude | 17.33 (0.01) | 17.32 (0.02) | 17.33 (0.01) | ||||||||
| G magnitude | 16.64 (0.006) | 16.66 | 16.64 | 16.64 (0.003) | |||||||
| BP magnitude | 16.59 (0.006) | 16.57 | |||||||||
| RP magnitude | 16.76 (0.007) | 16.76 | |||||||||
| Pan g magnitude | 16.51 (0.004) | ||||||||||
| Pan r magnitude | 16.80 (0.004) | ||||||||||
| Pan i magnitude | 17.08 (0.003) | ||||||||||
| Pan z magnitude | 17.30 (0.006) | ||||||||||
| Pan y magnitude | 17.46 (0.01) | ||||||||||
| E(B-V) | 0.058 | ||||||||||
* 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.