All names: SDSS J100324.10+464945.7, HS1000+4704, US 1184, Gaia EDR3 822338490313075712, Gaia DR2 822338490313075712, SDSS J100324.10+464945.63, SDSS J100324.10+464945.6, HS 1000+4704, GALEX J100324.0+464946, Gaia DR3 822338490313075712
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 03 24.10 (0.07) | 10 03 24.10 | 10 03 24.07 | 10 03 24.10 (0.09) | 10 03 24.10 (0.07) | ||||
| Declination | 46 49 45.59 (0.06) | 46 49 45.76 | 46 49 43.28 | 46 49 45.59 (0.1) | 46 49 45.75 (0.06) | ||||
| Spectral type | sdOB | sdO | sdBC0.2VIIHe28 | ||||||
| Effective temperature | [K] | 40082.0 (865) | 40000.0 (10000) | ||||||
| log(g) | [cgs] | 5.82 (0.1) | 6.00 (0) | ||||||
| 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) | 0.02 (0.2) | 0.02 (0.2) | 0.00 (0.1) | ||||
| Distance | [pc] | 383804.38 (14990806) | 50505.05 (416029) | 50468.42 (415413) | 384615.38 (15059172) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 0.158366206 (0.09) | 0.029 (0.2) | 0.028810039 (0.2) | 0.158 (0.09) | ||||
| Proper motion (declination) | [mas/yr] | -9.913075515 (0.08) | -9.637 (0.3) | -9.63674474 (0.3) | -9.913 (0.08) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 17.20 | ||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 17.03 (0.008) | 17.03 (0.008) | 17.01 (0.02) | 17.03 (0.02) | |||||
| g magnitude | 17.39 (0.005) | 17.40 (0.005) | 17.41 (0.01) | 17.41 (0.01) | |||||
| r magnitude | 17.89 (0.006) | 17.90 (0.006) | 17.92 (0.02) | 17.92 (0.02) | |||||
| i magnitude | 18.29 (0.009) | 18.29 (0.009) | 18.29 (0.02) | 18.29 (0.01) | |||||
| z magnitude | 18.59 (0.03) | 18.59 (0.03) | 18.62 (0.03) | 18.62 (0.03) | |||||
| G magnitude | 17.67 (0.01) | 17.70 (0.002) | 17.70 | 17.67 (0.003) | |||||
| BP magnitude | 17.51 (0.01) | 17.47 (0.01) | 17.47 | ||||||
| RP magnitude | 18.00 (0.02) | 17.98 (0.02) | 17.98 | ||||||
| Pan g magnitude | 17.48 (0.004) | 17.48 (0.004) | |||||||
| Pan r magnitude | 17.93 (0.003) | 17.93 (0.003) | |||||||
| Pan i magnitude | 18.32 (0.004) | 18.32 (0.004) | |||||||
| Pan z magnitude | 18.63 (0.02) | 18.63 (0.01) | |||||||
| Pan y magnitude | 18.78 (0.03) | 18.78 (0.03) | |||||||
| E(B-V) | 0.020 | ||||||||
* 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.