All names: TIC 156623726, GPM 215.030919+25.488635, UBV M 43119, PG1417+257, Gaia DR2 1255912556917971456, PG 1417+257, uvby98 610070194, [TFW97] J142007.41+252918.70, KUV 14179+2543, Gaia DR3 1255912556917971456, 2MASS J14200741+2529186, Ton 194, GEN# +6.10070194
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 14 20 07.42 | 14 20 07.42 (0.02) | ||
| Declination | 25 29 19.08 | 25 29 18.61 (0.03) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 27600.0 (1000) | ||
| log(g) | [cgs] | 5.43 (0.1) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.09 (0.05) | 1.05 (0.04) | |
| Distance | [pc] | 918.36 (38) | 949.67 (34) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 3.189 (0.08) | 3.196 (0.03) | |
| Proper motion (declination) | [mas/yr] | -11.763 (0.08) | -12.026 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.49 | |||
| V magnitude | 13.68 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.30 (0.03) | 14.30 (0.03) | ||
| H magnitude | 14.42 (0.04) | 14.42 (0.04) | ||
| K magnitude | 14.44 (0.07) | 14.44 (0.07) | ||
| u magnitude | 13.36 (0.003) | |||
| g magnitude | 13.85 (0.007) | |||
| r magnitude | 13.98 (0.003) | |||
| i magnitude | 14.31 (0.004) | |||
| z magnitude | 14.62 (0.004) | |||
| G magnitude | 13.74 (0.0006) | 13.72 (0.003) | ||
| BP magnitude | 13.53 (0.006) | |||
| RP magnitude | 13.97 (0.002) | |||
| Pan g magnitude | 13.55 (0.01) | |||
| Pan r magnitude | 13.97 (0.003) | |||
| Pan i magnitude | 14.31 (0.001) | |||
| Pan z magnitude | 14.60 (0.002) | |||
| Pan y magnitude | 14.75 (0.003) | |||
| E(B-V) | 0.020 | |||
* 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.