All names: Gaia EDR3 1576771314285661952, Gaia DR2 1576771314285661952, Gaia DR3 1576771314285661952, SDSS J124917.25+563214.2, SDSS J124917.25+563214.3, SBSS1247+568, SBSS 1246+568, USNO-B1.0 1465-00233925, SBSS 1247+568, WD 1247+568, SDSS J124917.27+563214.4
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 49 17.26 (0.07) | 12 49 17.25 | 12 49 17.14 | 12 49 17.26 (0.1) | 12 49 17.26 (0.07) | 12 49 16.56 | ||
| Declination | 56 32 14.15 (0.08) | 56 32 14.31 | 56 32 15.79 | 56 32 14.15 (0.09) | 56 32 14.17 (0.08) | 56 32 09.96 | ||
| Spectral type | sdB | sdB | DA | |||||
| 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] | -0.00 (0.1) | 0.08 (0.1) | 0.08 (0.1) | 0.08 (0.1) | |||
| Distance | [pc] | 12970.17 (20103) | 12970.17 (20103) | 12970.17 (20103) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -1.030342191 (0.1) | -1.005 (0.2) | -1.005 (0.2) | -1.03 (0.1) | |||
| Proper motion (declination) | [mas/yr] | -0.958277645 (0.1) | -1.05 (0.2) | -1.05 (0.2) | -0.958 (0.1) | |||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 17.80 | |||||||
| V magnitude | ||||||||
| R magnitude | 18.30 | |||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 19.14 (0.02) | 19.14 (0.02) | 19.12 (0.03) | |||||
| g magnitude | 17.90 (0.006) | 17.90 (0.006) | 17.90 (0.006) | |||||
| r magnitude | 18.12 (0.007) | 18.11 (0.007) | 18.11 (0.007) | |||||
| i magnitude | 18.28 (0.009) | 18.27 (0.009) | 18.27 (0.009) | |||||
| z magnitude | 18.38 (0.03) | 18.37 (0.03) | 18.36 (0.03) | |||||
| G magnitude | 18.01 (0.01) | 18.04 (0.002) | 18.04 | 18.01 (0.003) | ||||
| BP magnitude | 18.07 (0.01) | 18.07 (0.01) | 18.07 | |||||
| RP magnitude | 17.99 (0.02) | 17.95 (0.02) | 17.95 | |||||
| Pan g magnitude | 17.97 (0.004) | |||||||
| Pan r magnitude | 18.13 (0.004) | |||||||
| Pan i magnitude | 18.30 (0.005) | |||||||
| Pan z magnitude | 18.41 (0.01) | |||||||
| Pan y magnitude | 18.39 (0.02) | |||||||
| E(B-V) | 0.018 | |||||||
* 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.