All names: PM J17095+4340, G 203-47, NLTT 44290, TYC 3084-558-1, WD 1708+437, AP J17093153+4340531, GJ 3991, CNS5 4198, Gaia DR3 1355264565043431040, WISEA J170931.87+434049.8, HIP 83945, [RHG95] 2708, 2MASS J17093153+4340531, TIC 219085795, LSPM J1709+4340, PLX 3899.01, ASCC 416422, USNO-B1.0 1336-00280975, G 203-47B, USNO 752, Gaia EDR3 1355264565043431040, UCAC4 669-061850, Gaia DR2 1355264565043431040, G 203-47A, HIC 83945
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|
| Right ascension | 17 09 32.03 (0.4) | 17 09 32.02 (0.4) | 17 09 31.54 (0.4) | 17 09 31.51 | ||
| Declination | 43 40 48.38 (0.4) | 43 40 48.52 (0.5) | 43 40 52.77 (0.4) | 43 40 48.00 | ||
| Spectral type | M3.5V | WD/M | ||||
| 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] | 131.60 (0.4) | 134.60 (0.5) | 131.60 (0.4) | ||
| Distance | [pc] | 7.60 (0.02) | 7.43 (0.03) | 7.60 (0.02) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 332.0321475 (0.5) | 332.591 (1) | 332.032 (0.5) | ||
| Proper motion (declination) | [mas/yr] | -274.5009947 (0.5) | -271.834 (1) | -274.501 (0.5) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | yes | |||||
| B magnitude | 13.46 | |||||
| V magnitude | 13.67 (0.006) | |||||
| R magnitude | 11.51 (0.05) | |||||
| I magnitude | ||||||
| J magnitude | 7.38 (0.02) | |||||
| H magnitude | 6.76 (0.02) | |||||
| K magnitude | 6.49 (0.02) | |||||
| u magnitude | ||||||
| g magnitude | 12.50 (0.05) | |||||
| r magnitude | 11.21 (0.01) | |||||
| i magnitude | 9.79 (0.05) | |||||
| z magnitude | ||||||
| G magnitude | 10.45 (0.002) | 10.45 | 10.45 (0.003) | |||
| BP magnitude | 12.08 (0.002) | 12.10 | ||||
| RP magnitude | 9.21 (0.001) | 9.22 | ||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.000 | |||||
* 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.