All names: [ZEH2003] RX J0903.8+1936 2, Gaia EDR3 636481344013247616, SDSS J090352.79+193643.5, SDSS J090352.80+193643.6, LB 9196, USNO-B1.0 1096-00169019, SDSS J090352.80+193643.5, RX J0903.8+1936, GALEX J090352.7+193644, Gaia DR3 636481344013247616, Gaia DR2 636481344013247616, 1RXS J090349.1+193646
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 03 52.79 (0.06) | 09 03 52.80 | 09 03 52.79 (0.09) | 09 03 52.79 | 09 03 52.81 (0.06) | 09 03 52.80 | |||||
| Declination | 19 36 43.51 (0.04) | 19 36 43.55 | 19 36 43.51 (0.07) | 19 36 43.51 | 19 36 43.58 (0.04) | 19 36 43.57 | |||||
| Spectral type | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 42900.0 (297) | 44973.0 (3781) | 43788.0 (418) | |||||||
| log(g) | [cgs] | 7.92 (0.03) | 8.00 (0.05) | 7.89 (0.04) | |||||||
| Mass | [M☉] | 0.63 (0.01) | 0.678 (0.04) | 0.62 (0.02) | |||||||
| log(Luminosity) | [L☉] | -0.20 (0.02) | |||||||||
| Cooling age | [Gyr] | 0.0030 (0.0001) | |||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| log(C/H) | |||||||||||
| log(N/H) | |||||||||||
| log(O/H) | |||||||||||
| log(Na/H) | |||||||||||
| log(Mg/H) | |||||||||||
| log(Al/H) | |||||||||||
| log(Si/H) | |||||||||||
| log(P/H) | |||||||||||
| log(S/H) | |||||||||||
| log(Sc/H) | |||||||||||
| log(Ti/H) | |||||||||||
| log(Cr/H) | |||||||||||
| log(Mn/H) | |||||||||||
| log(Fe/H) | |||||||||||
| log(Ni/H) | |||||||||||
| Parallax | [mas] | 3.50 (0.07) | 3.50 (0.1) | 3.50 | 3.50 (0.07) | ||||||
| Distance | [pc] | 285.75 (6) | 285.64 (9) | 285.75 | 285.75 (6) | ||||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -21.49883479 (0.07) | -21.80187377 (0.2) | -21.499 (0.07) | |||||||
| Proper motion (declination) | [mas/yr] | -4.502903088 (0.06) | -4.351618599 (0.1) | -4.503 (0.06) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 16.20 | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 16.80 | ||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 15.98 (0.005) | 15.98 (0.005) | 15.98 (0.02) | ||||||||
| g magnitude | 16.33 (0.004) | 16.32 (0.004) | 16.37 (0.01) | ||||||||
| r magnitude | 16.85 (0.005) | 16.85 (0.005) | 16.84 (0.01) | ||||||||
| i magnitude | 17.19 (0.006) | 17.19 (0.006) | 17.22 (0.01) | ||||||||
| z magnitude | 17.51 (0.01) | 17.51 (0.01) | 17.51 (0.02) | ||||||||
| G magnitude | 16.59 (0.004) | 16.62 | 16.59 | 16.59 (0.003) | |||||||
| BP magnitude | 16.44 (0.004) | 16.37 | |||||||||
| RP magnitude | 16.91 (0.007) | 16.89 | |||||||||
| Pan g magnitude | 16.41 (0.003) | ||||||||||
| Pan r magnitude | 16.84 (0.004) | ||||||||||
| Pan i magnitude | 17.22 (0.004) | ||||||||||
| Pan z magnitude | 17.53 (0.008) | ||||||||||
| Pan y magnitude | 17.68 (0.02) | ||||||||||
| E(B-V) | 0.022 | ||||||||||
* 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.