All names: Gaia DR3 3845783776345263104, GALEX J092436.4+040135, Gaia DR2 3845783776345263104, SDSS J092436.40+040135.6, SDSS J092436.41+040135.7, Gaia EDR3 3845783776345263104, SDSSJ092436.40+040135.7
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 24 36.41 (0.08) | 09 24 36.41 | 09 24 36.40 | 09 24 36.41 (0.08) | 09 24 36.41 | |||
| Declination | 04 01 35.68 (0.06) | 04 01 35.62 | 04 01 35.70 | 04 01 35.74 (0.06) | 04 01 35.73 | |||
| Spectral type | sdB | sdB | SD_auto | |||||
| Effective temperature | [K] | 22805.0 (299) | ||||||
| log(g) | [cgs] | 5.00 (0.001) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.10 (0.09) | -0.02 (0.1) | 0.10 (0.09) | ||||
| Distance | [pc] | 10311.34 (9885) | 10309.28 (9884) | |||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 0.007225482 (0.1) | -0.053 (0.2) | 0.007 (0.1) | -0.3 | |||
| Proper motion (declination) | [mas/yr] | -3.692470853 (0.07) | -3.938 (0.2) | -3.692 (0.07) | -4.1 | |||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 17.84 (0.03) | |||||||
| H magnitude | 17.88 (0.1) | |||||||
| K magnitude | 18.10 (0.2) | |||||||
| u magnitude | 17.63 (0.01) | 17.63 (0.01) | 17.63 (0.01) | 17.58 (0.02) | ||||
| g magnitude | 17.34 (0.005) | 17.34 (0.005) | 17.34 (0.005) | 17.35 (0.02) | ||||
| r magnitude | 17.68 (0.006) | 17.68 (0.006) | 17.68 (0.006) | 17.68 (0.01) | ||||
| i magnitude | 17.95 (0.007) | 17.95 (0.007) | 17.95 (0.007) | 17.92 (0.01) | ||||
| z magnitude | 18.19 (0.02) | 18.19 (0.02) | 18.19 (0.02) | 18.20 (0.03) | ||||
| G magnitude | 17.51 (0.008) | 17.55 (0.002) | 17.51 (0.003) | |||||
| BP magnitude | 17.47 (0.008) | 17.44 (0.01) | ||||||
| RP magnitude | 17.61 (0.01) | 17.63 (0.02) | ||||||
| Pan g magnitude | 17.39 (0.007) | 17.39 (0.007) | ||||||
| Pan r magnitude | 17.69 (0.003) | 17.69 (0.003) | ||||||
| Pan i magnitude | 17.96 (0.006) | 17.96 (0.006) | ||||||
| Pan z magnitude | 18.19 (0.009) | 18.19 (0.009) | ||||||
| Pan y magnitude | 18.28 (0.01) | 18.28 (0.01) | ||||||
| E(B-V) | 0.030 | |||||||
* 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.