All names: CRTS J165919.0+494711, [SHM2017] J254.82935+49.78651, Gaia DR3 1409397022876603392, Gaia EDR3 1409397022876603392, SDSS J165919.06+494711.7, Gaia DR2 1409397022876603392, SDSS J165919.06+494711.72, ZTF J165919.06+494711.4
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 59 19.06 (0.2) | 16 59 19.06 | 16 59 19.06 (0.2) | 16 59 19.06 (0.2) | ||||
| Declination | 49 47 11.40 (0.2) | 49 47 11.44 | 49 47 11.40 (0.2) | 49 47 11.41 (0.2) | ||||
| Spectral type | sdA | sdA | ||||||
| Effective temperature | [K] | 7588.0 (37) | ||||||
| log(g) | [cgs] | 5.68 (0.1) | ||||||
| Mass | [M☉] | 0.1507 (0.0003) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.18 (0.2) | 0.24 (0.2) | 0.18 (0.2) | ||||
| Distance | [pc] | 5667.91 (5356) | 4188.17 (3617) | 5668.93 (5357) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -0.639010533 (0.2) | -0.900033138 (0.4) | -0.639 (0.2) | ||||
| Proper motion (declination) | [mas/yr] | -0.541393137 (0.2) | -0.661565448 (0.4) | -0.541 (0.2) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | 18.95 | |||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 20.49 (0.06) | 20.48 (0.06) | 20.48 (0.06) | |||||
| g magnitude | 19.34 (0.01) | 19.33 (0.02) | 19.07 (0.02) | |||||
| r magnitude | 19.19 (0.01) | 19.19 (0.02) | 19.19 (0.02) | |||||
| i magnitude | 19.09 (0.02) | 19.09 (0.02) | 18.89 (0.01) | |||||
| z magnitude | 19.15 (0.05) | 19.10 (0.05) | 18.96 (0.03) | |||||
| G magnitude | 18.97 (0.05) | 19.02 | 18.97 (0.008) | |||||
| BP magnitude | 19.12 (0.05) | 19.14 | ||||||
| RP magnitude | 18.67 (0.04) | 18.67 | ||||||
| Pan g magnitude | 19.07 (0.02) | |||||||
| Pan r magnitude | 18.94 (0.03) | |||||||
| Pan i magnitude | 18.89 (0.01) | |||||||
| Pan z magnitude | 18.96 (0.03) | |||||||
| Pan y magnitude | 19.04 (0.06) | |||||||
| E(B-V) | 0.025 | |||||||
* 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.