All names: Balloon 82000003, Balloon 114445004, Gaia DR2 1552221800914196480, SDSS J134008.83+475151.8, GALEX J134009.0+475152, 2MASS J13400884+4751518, CHSS 2559, Gaia EDR3 1552221800914196480, Gaia DR3 1552221800914196480, PG 1338+481, USNO-A2.0 1350-08311731, LAMOST J134008.83+475151.9, PG1338+481, [TFW97] J134008.83+475151.92, TIC 458452988
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 13 40 08.85 (0.02) | 13 40 08.80 | 13 40 08.83 (0.02) | ||
| Declination | 47 51 51.70 (0.02) | 47 51 52.31 | 47 51 51.86 (0.02) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 28360.0 (300) | |||
| log(g) | [cgs] | 5.50 (0.05) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.22 (0.03) | 1.20 (0.05) | 1.22 (0.03) | |
| Distance | [pc] | 820.95 (21) | 836.33 (34) | 820.95 (21) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 8.308 (0.02) | 8.312 (0.07) | 8.308 (0.02) | |
| Proper motion (declination) | [mas/yr] | -9.896 (0.03) | -9.789 (0.07) | -9.896 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.33 | ||||
| V magnitude | 13.59 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 14.17 (0.03) | 14.17 (0.03) | |||
| H magnitude | 14.32 (0.05) | 14.32 (0.05) | |||
| K magnitude | 14.28 (0.06) | 14.28 (0.06) | |||
| u magnitude | 13.16 (0.003) | 13.16 (0.003) | |||
| g magnitude | 13.81 (0.004) | ||||
| r magnitude | 13.79 (0.003) | 13.79 (0.003) | |||
| i magnitude | 14.15 (0.003) | 14.15 (0.003) | |||
| z magnitude | 14.45 (0.004) | 14.45 (0.004) | |||
| G magnitude | 13.57 (0.003) | 13.58 (0.0005) | 13.57 (0.003) | ||
| BP magnitude | 13.43 (0.003) | 13.37 (0.006) | |||
| RP magnitude | 13.83 (0.004) | 13.83 (0.002) | |||
| Pan g magnitude | 13.41 (0) | ||||
| Pan r magnitude | 13.83 (0.006) | ||||
| Pan i magnitude | 14.17 (0.003) | ||||
| Pan z magnitude | 14.44 (0.002) | ||||
| Pan y magnitude | 14.62 (0.005) | ||||
| 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.