All names: Gaia DR3 920362533202422784, Gaia EDR3 920362533202422784, Gaia DR2 920362533202422784, TIC 21401588, SDSS J074615.83+392203.1, 2MASS J07461584+3922025, SDSS J074615.84+392203.1, SDSS J074615.84+392203.12, GALEX J074615.7+392203
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 46 15.84 (0.05) | 07 46 15.84 | 07 46 15.84 (0.06) | 07 46 15.84 (0.05) | ||||
| Declination | 39 22 03.06 (0.04) | 39 22 03.11 | 39 22 03.06 (0.05) | 39 22 03.07 (0.04) | ||||
| Spectral type | sdA | DA | ||||||
| Effective temperature | [K] | 8234.0 (9) | ||||||
| log(g) | [cgs] | 5.82 (0.02) | ||||||
| Mass | [M☉] | 0.1713299999999999 (3e-05) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.12 (0.06) | 0.20 (0.1) | 0.12 (0.06) | ||||
| Distance | [pc] | 8381.05 (4387) | 4901.22 (2394) | 8382.23 (4391) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -0.97962191 (0.06) | -0.883229736 (0.1) | -0.98 (0.06) | ||||
| Proper motion (declination) | [mas/yr] | -0.922581316 (0.04) | -0.857335732 (0.08) | -0.923 (0.04) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 16.48 (0.1) | |||||||
| H magnitude | 16.31 (0.2) | |||||||
| K magnitude | ||||||||
| u magnitude | 17.51 (0.009) | 17.53 (0.02) | 17.52 (0.009) | |||||
| g magnitude | 16.77 (0.004) | 16.79 (0.02) | 16.77 (0.004) | |||||
| r magnitude | 16.87 (0.005) | 16.86 (0.02) | 16.88 (0.005) | |||||
| i magnitude | 16.99 (0.005) | 16.99 (0.02) | 16.99 (0.005) | |||||
| z magnitude | 17.11 (0.01) | 17.12 (0.02) | 17.12 (0.01) | |||||
| G magnitude | 16.79 (0.004) | 16.81 | 16.79 (0.003) | |||||
| BP magnitude | 16.87 (0.004) | 16.86 | ||||||
| RP magnitude | 16.67 (0.009) | 16.68 | ||||||
| Pan g magnitude | 16.79 (0.01) | |||||||
| Pan r magnitude | 16.89 (0.003) | |||||||
| Pan i magnitude | 17.01 (0.004) | |||||||
| Pan z magnitude | 17.12 (0.004) | |||||||
| Pan y magnitude | 17.15 (0.006) | |||||||
| E(B-V) | 0.040 | |||||||
* 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.