All names: GALEX J133810.3+431743, TIC 288507077, Gaia DR2 1501713500909166208, SDSSJ133810.31+431743.1, Gaia DR3 1501713500909166208, 2MASS J13381033+4317431, SDSS J133810.31+431743.1, LAMOST J133810.31+431743.1, Gaia EDR3 1501713500909166208
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 38 10.29 (0.03) | 13 38 10.31 | 13 38 10.31 | 13 38 10.30 (0.04) | 13 38 10.31 (0.03) | 13 38 10.31 | |||
| Declination | 43 17 43.06 (0.04) | 43 17 43.11 | 43 17 43.10 | 43 17 43.06 (0.04) | 43 17 43.07 (0.04) | 43 17 43.11 | |||
| Spectral type | He-sdOB | sdO | SDO | ||||||
| Effective temperature | [K] | 36756.0 (2000) | 7506.0 (36) | ||||||
| log(g) | [cgs] | 5.22 (0.2) | 7.96 (0.1) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.16 (0.05) | 0.35 (0.07) | 0.35 (0.07) | 0.16 (0.05) | ||||
| Distance | [pc] | 6073.62 (1875) | 2878.53 (549) | 2878.70 (549) | 6075.33 (1875) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -13.54883077 (0.04) | -13.61 (0.07) | -13.6097491 (0.07) | -13.549 (0.04) | -12.4 | |||
| Proper motion (declination) | [mas/yr] | -0.655375813 (0.04) | -0.83 (0.08) | -0.830222432 (0.08) | -0.655 (0.04) | -0.2 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.34 (0.1) | 16.34 (0.1) | |||||||
| H magnitude | 15.34 | ||||||||
| K magnitude | 15.42 | ||||||||
| u magnitude | 16.87 (0.007) | 16.87 (0.007) | 16.87 (0.007) | 16.86 (0.02) | |||||
| g magnitude | 16.72 (0.004) | 16.72 (0.004) | 16.72 (0.004) | 16.75 (0.02) | |||||
| r magnitude | 16.84 (0.004) | 16.84 (0.004) | 16.84 (0.004) | 16.85 (0.01) | |||||
| i magnitude | 16.95 (0.005) | 16.95 (0.005) | 16.95 (0.005) | 16.96 (0.02) | |||||
| z magnitude | 17.05 (0.01) | 17.05 (0.01) | 17.04 (0.01) | 17.05 (0.02) | |||||
| G magnitude | 16.75 (0.003) | 16.77 (0.001) | 16.77 | 16.75 (0.003) | |||||
| BP magnitude | 16.80 (0.003) | 16.77 (0.006) | 16.77 | ||||||
| RP magnitude | 16.65 (0.004) | 16.64 (0.005) | 16.64 | ||||||
| Pan g magnitude | 16.78 (0.005) | 16.78 (0.005) | |||||||
| Pan r magnitude | 16.86 (0.004) | 16.86 (0.004) | |||||||
| Pan i magnitude | 16.98 (0.002) | 16.98 (0.002) | |||||||
| Pan z magnitude | 17.08 (0.003) | 17.08 (0.003) | |||||||
| Pan y magnitude | 17.14 (0.01) | 17.14 (0.01) | |||||||
| E(B-V) | 0.018 | ||||||||
* 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.