All names: TIC 308412050, 2MASS J17530480+2435463, Gaia DR2 4581048921494269056, LAMOST J175304.81+243546.3, SDSSJ175304.81+243546.3, SDSS J175304.81+243546.3, Gaia DR3 4581048921494269056
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 17 53 04.82 | 17 53 04.81 (0.02) | ||
| Declination | 24 35 46.35 | 24 35 46.36 (0.03) | ||
| Spectral type | sdOB | sdB | ||
| Effective temperature | [K] | 37648.0 (302) | ||
| log(g) | [cgs] | 5.66 (0.04) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.61 (0.05) | 0.60 (0.03) | |
| Distance | [pc] | 1635.32 (126) | 1655.63 (85) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -2.349 (0.06) | -2.281 (0.02) | |
| Proper motion (declination) | [mas/yr] | -10.181 (0.08) | -10.062 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.21 (0.05) | 15.21 (0.05) | ||
| H magnitude | 15.47 (0.1) | 15.47 (0.1) | ||
| K magnitude | 15.52 (0.2) | 15.52 (0.2) | ||
| u magnitude | 14.06 (0.003) | 14.08 (0.01) | ||
| g magnitude | 14.35 (0.003) | 14.38 (0.01) | ||
| r magnitude | 14.82 (0.004) | 14.81 (0.007) | ||
| i magnitude | 15.19 (0.004) | 15.19 (0.01) | ||
| z magnitude | 15.49 (0.006) | 15.49 (0.02) | ||
| G magnitude | 14.61 (0.0006) | 14.60 (0.003) | ||
| BP magnitude | 14.39 (0.006) | |||
| RP magnitude | 14.86 (0.002) | |||
| Pan g magnitude | 14.44 (0.006) | |||
| Pan r magnitude | 14.86 (0.001) | |||
| Pan i magnitude | 15.21 (0.003) | |||
| Pan z magnitude | 15.47 (0.004) | |||
| Pan y magnitude | 15.67 (0.002) | |||
| E(B-V) | 0.065 | |||
* 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.