All names: TD1 32714, ALS 18969, Gaia DR2 4557081835745623808, UCAC2 39688660, 2MASS J17372643+2208577, GALEX J173726.5+220857, UVO1735+22, GSC 01563-01018, LSE 161, Gaia DR3 4557081835745623808, [CW83] 1735+22, LAMOST J173726.42+220857.7, TYC 1563-1018-1, TIC 349534378, SBC9 3423
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 17 37 26.48 | 17 37 26.42 (0.02) | ||
| Declination | 22 08 57.68 | 22 08 57.72 (0.03) | ||
| Spectral type | sdOB+WD | sdB+A? | ||
| Effective temperature | [K] | 38000.0 (500) | ||
| log(g) | [cgs] | 5.54 (0.05) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 2.23 (0.05) | 2.28 (0.05) | |
| Distance | [pc] | 449.42 (10) | 438.42 (9) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -21.658 (0.06) | -21.779 (0.03) | |
| Proper motion (declination) | [mas/yr] | 1.37 (0.08) | 1.268 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 11.51 (0.06) | |||
| V magnitude | 11.65 (0.1) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 12.51 (0.02) | 12.51 (0.02) | ||
| H magnitude | 12.65 (0.02) | 12.65 (0.02) | ||
| K magnitude | 12.70 (0.03) | 12.70 (0.03) | ||
| u magnitude | 11.81 (0.001) | |||
| g magnitude | ||||
| r magnitude | 12.17 (0.001) | |||
| i magnitude | 14.86 (0.01) | |||
| z magnitude | 13.38 (0.005) | |||
| G magnitude | 11.82 (0.0005) | 11.80 (0.003) | ||
| BP magnitude | 11.58 (0.005) | |||
| RP magnitude | 12.10 (0.001) | |||
| Pan g magnitude | 11.61 | |||
| Pan r magnitude | 12.09 | |||
| Pan i magnitude | 12.46 | |||
| Pan z magnitude | 12.75 | |||
| Pan y magnitude | 12.91 (0.0005) | |||
| E(B-V) | 0.046 | |||
* 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.