All names: SDSS J094944.48+012118.5, 2MASS J09494447+0121184, GALEX J094944.5+012118, TIC 455284574, Gaia DR3 3846279557305261568, Gaia EDR3 3846279557305261568, Gaia DR2 3846279557305261568, SDSSJ094944.48+012118.5
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 49 44.48 (0.04) | 09 49 44.48 | 09 49 44.48 | 09 49 44.48 (0.08) | 09 49 44.48 (0.04) | 09 49 44.48 | |||
| Declination | 01 21 18.49 (0.03) | 01 21 18.54 | 01 21 18.54 | 01 21 18.49 (0.07) | 01 21 18.53 (0.03) | 01 21 18.54 | |||
| Spectral type | sdB | sdB | SDB | ||||||
| Effective temperature | [K] | 7683.0 (4) | |||||||
| log(g) | [cgs] | 5.00 (0.002) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.03 (0.05) | 0.16 (0.1) | 0.16 (0.1) | 0.03 (0.05) | ||||
| Distance | [pc] | 31887.93 (47371) | 6418.49 (4017) | 6418.79 (4018) | 31847.13 (47264) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -0.500924864 (0.04) | -0.567 (0.1) | -0.566653546 (0.1) | -0.501 (0.04) | 2.3 | |||
| Proper motion (declination) | [mas/yr] | -2.757021839 (0.03) | -2.676 (0.1) | -2.676489925 (0.1) | -2.757 (0.03) | -1.4 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 15.47 (0.07) | 15.47 (0.07) | |||||||
| H magnitude | 15.75 (0.1) | 15.75 (0.1) | |||||||
| K magnitude | 15.00 (0.2) | 15.00 (0.2) | |||||||
| u magnitude | 15.85 (0.005) | 15.85 (0.005) | 15.85 (0.005) | 15.88 (0.03) | |||||
| g magnitude | 15.16 (0.003) | 15.16 (0.003) | 15.16 (0.003) | 15.17 (0.02) | |||||
| r magnitude | 15.47 (0.004) | 15.46 (0.004) | 15.46 (0.004) | 15.44 (0.02) | |||||
| i magnitude | 15.72 (0.004) | 15.72 (0.004) | 15.72 (0.004) | 15.72 (0.02) | |||||
| z magnitude | 15.91 (0.006) | 15.91 (0.006) | 15.91 (0.006) | 15.91 (0.02) | |||||
| G magnitude | 15.33 (0.002) | 15.35 (0.0009) | 15.35 | 15.33 (0.003) | |||||
| BP magnitude | 15.30 (0.002) | 15.29 (0.005) | 15.28 | ||||||
| RP magnitude | 15.39 (0.004) | 15.40 (0.007) | 15.40 | ||||||
| Pan g magnitude | 15.22 (0.004) | 15.22 (0.004) | |||||||
| Pan r magnitude | 15.46 (0.002) | 15.46 (0.002) | |||||||
| Pan i magnitude | 15.73 (0.004) | 15.73 (0.004) | |||||||
| Pan z magnitude | 15.91 (0.002) | 15.91 (0.002) | |||||||
| Pan y magnitude | 15.99 (0.004) | 15.99 (0.004) | |||||||
| E(B-V) | 0.028 | ||||||||
* 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.