All names: TIC 279823992, SDSS J091216.21+505353.8, CSV 6692, SDSS J091216.21+505353.70, SDSS J091216.19+505353.8, Gaia DR2 1013298268207936128, 2MASS J09121619+5053541, ZTF18aaagsjn, SDSS J091216.21+505353.7, Gaia EDR3 1013298268207936128, NSV 4407, Gaia DR3 1013298268207936128, SV* SON 5305, V* DI UMa
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|---|
| Right ascension | 09 12 16.22 (0.05) | 09 12 16.20 | 09 12 16.22 (0.07) | 09 12 16.19 (0.05) | |||
| Declination | 50 53 53.71 (0.03) | 50 53 53.89 | 50 53 53.71 (0.05) | 50 53 53.96 (0.04) | |||
| Spectral type | CV | ||||||
| Effective temperature | [K] | ||||||
| log(g) | [cgs] | ||||||
| Mass | [M☉] | ||||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 1.44 (0.07) | 1.46 (0.08) | 1.44 (0.07) | |||
| Distance | [pc] | 693.79 (31) | 686.73 (37) | 693.77 (31) | |||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | 15.0263741 (0.06) | 14.67369921 (0.1) | 15.026 (0.06) | |||
| Proper motion (declination) | [mas/yr] | -15.66519991 (0.05) | -15.84638707 (0.1) | -15.665 (0.05) | |||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | |||||||
| V magnitude | |||||||
| R magnitude | |||||||
| I magnitude | |||||||
| J magnitude | 15.53 (0.06) | ||||||
| H magnitude | 15.26 (0.1) | ||||||
| K magnitude | 15.13 (0.1) | ||||||
| u magnitude | 17.78 (0.01) | 17.76 (0.01) | 17.76 (0.01) | ||||
| g magnitude | 17.90 (0.006) | 17.93 (0.02) | 17.91 (0.006) | ||||
| r magnitude | 17.79 (0.006) | 17.79 (0.02) | 17.79 (0.006) | ||||
| i magnitude | 17.77 (0.007) | 17.77 (0.01) | 17.77 (0.007) | ||||
| z magnitude | 17.77 (0.02) | 17.78 (0.02) | 17.78 (0.02) | ||||
| G magnitude | 17.27 (0.07) | 17.75 | 17.27 (0.07) | ||||
| BP magnitude | 16.88 (0.2) | 16.86 | |||||
| RP magnitude | 16.50 (0.2) | 16.82 | |||||
| Pan g magnitude | |||||||
| Pan r magnitude | |||||||
| Pan i magnitude | |||||||
| Pan z magnitude | |||||||
| Pan y magnitude | |||||||
| E(B-V) | 0.022 | ||||||
* 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.