All names: 2MASS J17371023+4329198, SDSS J173710.22+432920.0, WISEA J173710.21+432920.2, TIC 270452583, Gaia DR2 1349954611076184704, WISE J173710.22+432920.2, GALEX J173710.3+432919, SDSSJ173710.23+432919.8, SDSS J173710.23+432919.8, PG 1735+435, UCAC4 668-065376, Gaia DR3 1349954611076184704
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 17 37 10.23 | 17 37 10.24 (0.03) | ||
| Declination | 43 29 19.80 | 43 29 19.79 (0.03) | ||
| Spectral type | sdB+MS | sdB1.5He5+G/K | ||
| 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] | 0.28 (0.04) | 0.37 (0.03) | |
| Distance | [pc] | 3633.72 (584) | 2690.34 (218) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -8.124 (0.08) | -8.032 (0.04) | |
| Proper motion (declination) | [mas/yr] | -9.463 (0.1) | -9.227 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.35 (0.03) | |||
| V magnitude | 15.35 (0.01) | |||
| R magnitude | 15.54 (0.3) | |||
| I magnitude | ||||
| J magnitude | 15.14 (0.04) | 15.14 (0.04) | ||
| H magnitude | 14.82 (0.07) | 14.82 (0.07) | ||
| K magnitude | 14.68 (0.1) | 14.68 (0.1) | ||
| u magnitude | 15.29 (0.005) | 15.29 (0.005) | ||
| g magnitude | 15.25 (0.004) | 15.25 (0.004) | ||
| r magnitude | 15.53 (0.004) | 15.53 (0.004) | ||
| i magnitude | 15.69 (0.005) | 15.69 (0.005) | ||
| z magnitude | 15.84 (0.007) | 15.84 (0.007) | ||
| G magnitude | 15.40 (0.0008) | 15.40 (0.003) | ||
| BP magnitude | 15.31 (0.005) | |||
| RP magnitude | 15.36 (0.004) | |||
| Pan g magnitude | 15.30 (0.002) | |||
| Pan r magnitude | 15.55 (0.007) | |||
| Pan i magnitude | 15.72 (0.006) | |||
| Pan z magnitude | 15.86 (0.006) | |||
| Pan y magnitude | 15.90 (0.01) | |||
| E(B-V) | 0.031 | |||
* 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.