All names: SDSS J115215.83+491441.9, Gaia DR2 787683052032971904, Gaia DR3 787683052032971904, 2MASS J11521583+4914419, Gaia EDR3 787683052032971904, SV* GR 102, V* BC UMa, WISE J115215.82+491442.0, SDSS J115215.83+491441.8, AAVSO 1147+49, TIC 11894425, SDSS J115215.80+491441.7
| Parameter | Unit | Gaia EDR3 | Stilism | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|
| Right ascension | 11 52 15.79 (0.07) | 11 52 15.79 | 11 52 15.83 (0.07) | |||
| Declination | 49 14 41.68 (0.09) | 49 14 41.68 | 49 14 41.89 (0.09) | |||
| Spectral type | DC: | DC | 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] | 3.39 (0.1) | 3.39 | 3.39 (0.1) | ||
| Distance | [pc] | 294.82 (11) | 294.82 | 294.82 (11) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | -29.507 (0.08) | -29.507 (0.08) | |||
| Proper motion (declination) | [mas/yr] | -12.738 (0.1) | -12.738 (0.1) | |||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | 16.79 (0.1) | |||||
| H magnitude | 16.35 (0.2) | |||||
| K magnitude | ||||||
| u magnitude | 18.62 (0.02) | |||||
| g magnitude | 18.51 (0.007) | |||||
| r magnitude | 18.60 (0.009) | |||||
| i magnitude | 18.61 (0.01) | |||||
| z magnitude | 18.37 (0.03) | |||||
| G magnitude | 18.31 (0.004) | 18.31 | 18.31 (0.004) | |||
| BP magnitude | 18.45 (0.02) | |||||
| RP magnitude | 18.00 (0.03) | |||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.017 | |||||
* 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.