All names: TIC 376761576, PG 1700+198, 2MASS J17021400+1942550, UCAC4 549-058999, PG1700+198, Gaia DR3 4561230774157695232, WISEA J170213.99+194255.3, Gaia EDR3 4561230774157695232, SDSS J170214.00+194255.1, Gaia DR2 4561230774157695232, WISE J170214.01+194255.3
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 02 14.00 (0.03) | 17 02 14.01 | 17 02 14.03 | 17 02 14.00 (0.04) | 17 02 14.01 (0.03) | 17 02 14.00 | |||
| Declination | 19 42 55.04 (0.02) | 19 42 55.11 | 19 42 55.41 | 19 42 55.04 (0.04) | 19 42 55.10 (0.03) | 19 42 55.14 | |||
| Spectral type | He-sdO | sdOHe | SDO | ||||||
| Effective temperature | [K] | 44300.0 (600) | 12581.0 (50) | ||||||
| log(g) | [cgs] | 5.79 (0.1) | 7.34 (0.07) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.44 (0.04) | 0.49 (0.06) | 0.49 (0.06) | 0.44 (0.04) | ||||
| Distance | [pc] | 2256.35 (195) | 2040.40 (251) | 2040.32 (252) | 2256.32 (195) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -9.774840609 (0.03) | -9.809 (0.07) | -9.808965024 (0.07) | -9.775 (0.03) | -1.5 | |||
| Proper motion (declination) | [mas/yr] | -3.721085929 (0.03) | -3.806 (0.08) | -3.806066168 (0.08) | -3.721 (0.03) | -3.7 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.64 (0.02) | ||||||||
| V magnitude | 15.79 (0.01) | ||||||||
| R magnitude | 16.21 (0.1) | ||||||||
| I magnitude | |||||||||
| J magnitude | 16.37 (0.1) | 16.37 (0.1) | |||||||
| H magnitude | 16.74 (0.3) | 16.74 (0.3) | |||||||
| K magnitude | 15.56 | ||||||||
| u magnitude | 15.15 (0.005) | 15.15 (0.005) | 15.15 (0.005) | 15.17 (0.01) | |||||
| g magnitude | 15.49 (0.005) | 15.49 (0.005) | 15.49 (0.005) | 15.51 (0.009) | |||||
| r magnitude | 15.93 (0.005) | 15.93 (0.005) | 15.93 (0.005) | 15.94 (0.01) | |||||
| i magnitude | 16.25 (0.006) | 16.25 (0.006) | 16.25 (0.006) | 16.24 (0.02) | |||||
| z magnitude | 16.57 (0.009) | 16.57 (0.009) | 16.57 (0.009) | 16.55 (0.02) | |||||
| G magnitude | 15.71 (0.001) | 15.72 (0.0008) | 15.72 | 15.71 (0.003) | |||||
| BP magnitude | 15.58 (0.001) | 15.51 (0.008) | 15.51 | ||||||
| RP magnitude | 15.94 (0.003) | 15.93 (0.005) | 15.93 | ||||||
| Pan g magnitude | 15.57 (0.003) | 15.57 (0.003) | |||||||
| Pan r magnitude | 15.95 (0.003) | 15.95 (0.003) | |||||||
| Pan i magnitude | 16.27 (0.002) | 16.27 (0.002) | |||||||
| Pan z magnitude | 16.54 (0.006) | 16.54 (0.006) | |||||||
| Pan y magnitude | 16.71 (0.006) | 16.71 (0.006) | |||||||
| E(B-V) | 0.049 | ||||||||
* 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.