All names: Gaia DR2 1360139937040515072, Gaia EDR3 1360139937040515072, FBS 1715+424, FBS B 379, TYC 3081-148-1, TIC 334900931, FBS1715+424, [ZEH2003] RX J1717.3+4226 2, UCAC2 46439170, Gaia DR3 1360139937040515072, 2MASS J17171879+4226092, LAMOST J171718.79+422609.2
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 17 17 18.79 (0.03) | 17 17 18.80 | 17 17 18.80 (0.03) | ||
| Declination | 42 26 08.93 (0.04) | 42 26 09.29 | 42 26 09.28 (0.04) | ||
| Spectral type | sdO | sdOHe0 | |||
| Effective temperature | [K] | 55191.0 (577) | |||
| log(g) | [cgs] | 5.96 (0.03) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 2.37 (0.04) | 2.50 (0.04) | 2.37 (0.04) | |
| Distance | [pc] | 422.15 (7) | 400.34 (6) | 422.15 (7) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -4.445 (0.05) | -4.643 (0.07) | -4.445 (0.05) | |
| Proper motion (declination) | [mas/yr] | -22.302 (0.05) | -22.138 (0.07) | -22.302 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 12.51 (0.1) | ||||
| V magnitude | 13.03 (0.3) | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 13.29 (0.03) | 13.29 (0.03) | |||
| H magnitude | 13.49 (0.04) | 13.49 (0.04) | |||
| K magnitude | 13.46 (0.04) | 13.46 (0.04) | |||
| u magnitude | 11.09 (0.001) | ||||
| g magnitude | 14.04 (0.01) | ||||
| r magnitude | 14.85 (0.01) | ||||
| i magnitude | 14.25 (0.005) | ||||
| z magnitude | 14.34 (0.006) | ||||
| G magnitude | 12.45 (0.003) | 12.48 (0.0008) | 12.45 (0.003) | ||
| BP magnitude | 12.28 (0.003) | 12.21 (0.008) | |||
| RP magnitude | 12.81 (0.004) | 12.81 (0.002) | |||
| Pan g magnitude | 12.80 | ||||
| Pan r magnitude | 13.17 | ||||
| Pan i magnitude | 13.43 | ||||
| Pan z magnitude | 13.46 (0.004) | ||||
| Pan y magnitude | 13.65 (0.003) | ||||
| E(B-V) | 0.027 | ||||
* 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.