All names: Gaia EDR3 1437520816623538048, UCAC4 751-051408, TIC 307984391, Gaia DR2 1437520816623538048, Gaia DR3 1437520816623538048, [TFW97] J170915.90+601010.79, PG1708+602, SDSS J170915.89+601011.0, PG 1708+602, SBSS 1708+602, GALEX J170916.0+601009, WISE J170915.86+601011.0, WISEA J170915.86+601011.0, 2MASS J17091588+6010108
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 17 09 15.88 (0.03) | 17 09 15.90 | 17 09 15.89 (0.03) | ||
| Declination | 60 10 11.16 (0.03) | 60 10 10.80 | 60 10 11.01 (0.03) | ||
| Spectral type | sdO | sdO2VIIHe14 | |||
| Effective temperature | [K] | ||||
| log(g) | [cgs] | ||||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.94 (0.03) | 0.98 (0.04) | 0.94 (0.03) | |
| Distance | [pc] | 1067.12 (35) | 1016.05 (37) | 1067.12 (35) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -4.535 (0.04) | -4.579 (0.07) | -4.535 (0.04) | |
| Proper motion (declination) | [mas/yr] | 9.609 (0.04) | 9.591 (0.08) | 9.609 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.42 (0) | ||||
| V magnitude | 13.74 (0.02) | ||||
| R magnitude | 14.06 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 14.53 (0.04) | 14.53 (0.04) | |||
| H magnitude | 14.59 (0.06) | 14.59 (0.06) | |||
| K magnitude | 14.80 (0.1) | 14.80 (0.1) | |||
| u magnitude | 12.97 (0.003) | ||||
| g magnitude | |||||
| r magnitude | 13.97 (0.003) | ||||
| i magnitude | 14.35 (0.003) | ||||
| z magnitude | 14.68 (0.004) | ||||
| G magnitude | 13.70 (0.003) | 13.71 (0.0006) | 13.70 (0.003) | ||
| BP magnitude | 13.52 (0.003) | 13.45 (0.007) | |||
| RP magnitude | 14.03 (0.004) | 14.03 (0.002) | |||
| Pan g magnitude | 13.54 (0.007) | ||||
| Pan r magnitude | 14.00 (0.002) | ||||
| Pan i magnitude | 14.37 (0.003) | ||||
| Pan z magnitude | 14.67 (0.004) | ||||
| Pan y magnitude | 14.88 (0.003) | ||||
| E(B-V) | 0.023 | ||||
* 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.