All names: PG1417+257, KUV 14179+2543, [TFW97] J142007.41+252918.70, GEN# +6.10070194, Ton 194, Gaia DR2 1255912556917971456, PG 1417+257, GPM 215.030919+25.488635, uvby98 610070194, 2MASS J14200741+2529186, UBV M 43119, TIC 156623726, Gaia DR3 1255912556917971456
| 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.