All names: TIC 158921077, UCAC4 665-073368, Kepler2M1915+4256, WISE J191518.91+425613.5, EQ J1915+4256, KIC 7353409, Gaia DR2 2102745688098547840, 2MASS J19151893+4256133, LAMOST J191518.93+425613.3, Gaia DR3 2102745688098547840
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 19 15 18.90 | 19 15 18.92 (0.03) | ||
| Declination | 42 56 13.00 | 42 56 13.47 (0.03) | ||
| Spectral type | sdOB | sdO | ||
| Effective temperature | [K] | 38420.0 (960) | ||
| log(g) | [cgs] | 5.54 (0.2) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.68 (0.04) | 0.68 (0.03) | |
| Distance | [pc] | 1476.89 (82) | 1468.64 (66) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -10.486 (0.07) | -10.39 (0.04) | |
| Proper motion (declination) | [mas/yr] | -6.927 (0.07) | -6.834 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.15 (0.08) | |||
| V magnitude | 14.61 (0.02) | |||
| R magnitude | 14.73 (0.05) | |||
| I magnitude | ||||
| J magnitude | 15.21 (0.04) | 15.21 (0.04) | ||
| H magnitude | 15.40 (0.09) | 15.40 (0.09) | ||
| K magnitude | 15.31 (0.1) | 15.31 (0.1) | ||
| u magnitude | ||||
| g magnitude | 14.17 (0.01) | |||
| r magnitude | 14.88 (0.08) | |||
| i magnitude | 15.07 (0.01) | |||
| z magnitude | ||||
| G magnitude | 14.49 (0.0008) | 14.48 (0.003) | ||
| BP magnitude | 14.27 (0.007) | |||
| RP magnitude | 14.77 (0.002) | |||
| Pan g magnitude | 14.33 (0.002) | |||
| Pan r magnitude | 14.76 (0.006) | |||
| Pan i magnitude | 15.12 (0.001) | |||
| Pan z magnitude | 15.39 (0.003) | |||
| Pan y magnitude | 15.58 (0.004) | |||
| E(B-V) | 0.048 | |||
* 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.