All names: LAMOST J090359.59+374018.3, CBS 92, SDSS J090359.59+374018.3, Gaia EDR3 718959044108128256, GALEX J090359.6+374017, SDSS J090359.60+374018.4, WD 0900+378, Gaia DR2 718959044108128256, SDSS J090359.60+374018.3, Gaia DR3 718959044108128256, KUV 09008+3752, SDSS J090359.58+374018.2
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 03 59.58 (0.09) | 09 03 59.60 | 09 03 59.58 (0.1) | 09 03 59.58 | 09 03 59.61 (0.09) | 09 03 58.97 | 09 03 59.60 | ||||||
| Declination | 37 40 18.17 (0.07) | 37 40 18.36 | 37 40 18.17 (0.09) | 37 40 18.17 | 37 40 18.33 (0.07) | 37 40 22.08 | 37 40 18.35 | ||||||
| Spectral type | DA | DA | DA | DA1.2 | DA1 | DA | DA | ||||||
| Effective temperature | [K] | 42238.0 (492) | 43250.0 (870) | 65407.0 (13101) | 44720.0 (595) | ||||||||
| log(g) | [cgs] | 7.68 (0.05) | 7.94 (0.08) | 8.17 (3) | 7.74 (0.06) | ||||||||
| Mass | [M☉] | 0.53 (0.02) | 0.65 (0.04) | 0.804 (520) | 0.564 (0.02) | ||||||||
| log(Luminosity) | [L☉] | -0.06 (0.04) | |||||||||||
| Cooling age | [Gyr] | 0.0029 (0.0003) | |||||||||||
| 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] | 2.29 (0.1) | 2.03 (0.2) | 2.29 | 2.29 (0.1) | ||||||||
| Distance | [pc] | 436.37 (21) | 493.41 (43) | 354.00 | 436.37 | 436.38 (21) | |||||||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -18.91343288 (0.1) | -19.09065299 (0.2) | -18.913 (0.1) | |||||||||
| Proper motion (declination) | [mas/yr] | -10.12886862 (0.1) | -10.21708291 (0.2) | -10.129 (0.1) | |||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 17.00 | ||||||||||||
| V magnitude | 17.00 | ||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 16.84 (0.007) | 16.84 (0.007) | 16.84 (0.01) | ||||||||||
| g magnitude | 17.18 (0.004) | 17.17 (0.004) | 17.17 (0.02) | ||||||||||
| r magnitude | 17.67 (0.006) | 17.67 (0.006) | 17.65 (0.02) | ||||||||||
| i magnitude | 18.06 (0.008) | 18.06 (0.008) | 18.06 (0.02) | ||||||||||
| z magnitude | 18.41 (0.03) | 18.41 (0.03) | 18.39 (0.03) | ||||||||||
| G magnitude | 17.44 (0.005) | 17.48 | 17.44 | 17.44 (0.003) | |||||||||
| BP magnitude | 17.30 (0.005) | 17.20 | |||||||||||
| RP magnitude | 17.74 (0.01) | 17.74 | |||||||||||
| Pan g magnitude | 17.27 (0.004) | ||||||||||||
| Pan r magnitude | 17.71 (0.003) | ||||||||||||
| Pan i magnitude | 18.07 (0.004) | ||||||||||||
| Pan z magnitude | 18.34 (0.007) | ||||||||||||
| Pan y magnitude | 18.51 (0.03) | ||||||||||||
| E(B-V) | 0.024 | ||||||||||||
* 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.