All names: SBSS 0901+597, Gaia EDR3 1039295018055645696, SDSS J090459.18+593519.2, GALEX J090459.1+593519, SDSS J090459.19+593519.2, Gaia DR2 1039295018055645696, PG 0901+598, Gaia DR3 1039295018055645696, WD 0901+597, SDSS J090459.20+593519.2
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 04 59.18 (0.04) | 09 04 59.18 (0.06) | 09 04 59.18 | 09 04 59.21 (0.04) | 09 04 58.46 | ||||
| Declination | 59 35 19.19 (0.04) | 59 35 19.19 (0.06) | 59 35 19.19 | 59 35 19.30 (0.04) | 59 35 08.16 | ||||
| Spectral type | DA | DA | DA.9 | DA | DA | ||||
| Effective temperature | [K] | 53170.0 (1689) | 51566.0 (3824) | ||||||
| log(g) | [cgs] | 7.69 (0.1) | 7.66 (0.04) | ||||||
| Mass | [M☉] | 0.57 (0.04) | 0.55 (0.02) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| 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] | 2.47 (0.06) | 2.54 (0.09) | 2.47 | 2.47 (0.06) | ||||
| Distance | [pc] | 405.12 (1e+01) | 393.88 (14) | 367.00 | 405.12 | 405.12 (1e+01) | |||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -17.6969449 (0.04) | -17.7063121 (0.1) | -17.697 (0.04) | |||||
| Proper motion (declination) | [mas/yr] | -7.365917418 (0.05) | -7.368744109 (0.1) | -7.366 (0.05) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 16.39 | ||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 16.09 (0.005) | ||||||||
| g magnitude | 16.44 (0.004) | ||||||||
| r magnitude | 16.92 (0.005) | ||||||||
| i magnitude | 17.27 (0.006) | ||||||||
| z magnitude | 17.58 (0.02) | ||||||||
| G magnitude | 16.65 (0.003) | 16.68 | 16.65 | 16.65 (0.003) | |||||
| BP magnitude | 16.51 (0.003) | 16.45 | |||||||
| RP magnitude | 16.94 (0.006) | 16.93 | |||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.032 | ||||||||
* 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.