All names: Gaia DR3 868817943488022016, LAMOST J074552.59+255127.3, Gaia DR2 868817943488022016, SDSSJ074552.59+255127.3, SDSS J074552.59+255127.3, 2MASS J07455258+2551274, Gaia EDR3 868817939192065280, TIC 393745131
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 07 45 51.84 (0.5) | 07 45 52.60 | 07 45 52.60 (0.04) | ||
| Declination | 25 51 35.02 (0.4) | 25 51 27.40 | 25 51 27.39 (0.03) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 26591.0 (404) | |||
| log(g) | [cgs] | 5.34 (0.05) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 3.43 (0.5) | 0.90 (0.07) | 0.74 (0.04) | |
| Distance | [pc] | 291.15 (46) | 1115.82 (87) | 1358.14 (80) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 3.178 (0.6) | 1.961 (0.1) | 1.979 (0.05) | |
| Proper motion (declination) | [mas/yr] | -6.119 (0.4) | -1.649 (0.09) | -1.681 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.31 (0.05) | 15.31 (0.004) | |||
| H magnitude | 15.61 (0.1) | 15.41 (0.009) | |||
| K magnitude | 15.44 (0.2) | 15.48 (0.02) | |||
| u magnitude | 14.41 (0.003) | 14.41 (0.003) | |||
| g magnitude | 14.48 (0.003) | 14.48 (0.003) | |||
| r magnitude | 14.96 (0.004) | 14.96 (0.004) | |||
| i magnitude | 15.28 (0.004) | 15.28 (0.004) | |||
| z magnitude | 15.58 (0.006) | 15.58 (0.006) | |||
| G magnitude | 19.28 (0.02) | 14.75 (0.0008) | 14.73 (0.003) | ||
| BP magnitude | 19.39 (0.07) | 14.56 (0.007) | |||
| RP magnitude | 18.56 (0.06) | 14.97 (0.004) | |||
| Pan g magnitude | 14.56 (0.002) | ||||
| Pan r magnitude | 14.97 (0.002) | ||||
| Pan i magnitude | 15.30 (0.002) | ||||
| Pan z magnitude | 15.57 (0.005) | ||||
| Pan y magnitude | 15.73 (0.003) | ||||
| E(B-V) | 0.036 | ||||
* 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.