All names: WD 1702+225, Gaia DR3 4571193552095451264, TIC 347696743, SDSS J170439.64+222807.6, SDSS J170439.63+222807.6, Gaia EDR3 4571193552095451264, Gaia DR2 4571193552095451264, 2MASS J17043966+2228078
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 04 39.59 (0.04) | 17 04 39.64 | 17 04 39.59 (0.07) | 17 04 39.64 | 17 04 39.65 (0.04) | 17 04 38.93 | |||
| Declination | 22 28 07.13 (0.07) | 22 28 07.60 | 22 28 07.14 (0.1) | 22 28 07.61 | 22 28 07.68 (0.07) | 22 28 01.92 | |||
| Spectral type | WD+M | D?+M? | 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] | 3.95 (0.1) | 3.51 (0.1) | 3.95 (0.1) | |||||
| Distance | [pc] | 253.07 (6) | 284.84 (11) | 253.07 (6) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -52.53518431 (0.07) | -52.52662836 (0.2) | -52.535 (0.07) | |||||
| Proper motion (declination) | [mas/yr] | -34.39120987 (0.09) | -34.46832952 (0.2) | -34.391 (0.09) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 14.66 (0.03) | ||||||||
| H magnitude | 14.06 (0.04) | ||||||||
| K magnitude | 13.96 (0.06) | ||||||||
| u magnitude | 20.91 (0.08) | 20.69 | 20.69 (0.08) | 20.68 | |||||
| g magnitude | 19.15 (0.01) | 19.22 | 19.21 (0.01) | 19.22 | |||||
| r magnitude | 17.95 (0.007) | 17.98 | 17.96 (0.007) | 17.98 | |||||
| i magnitude | 16.72 (0.005) | 16.75 | 16.72 (0.005) | 16.74 | |||||
| z magnitude | 16.03 (0.007) | 16.05 | 16.03 (0.007) | 16.04 | |||||
| G magnitude | 17.47 (0.01) | 17.46 | 17.47 (0.003) | ||||||
| BP magnitude | 18.73 (0.01) | 18.74 | |||||||
| RP magnitude | 16.24 (0.002) | 16.26 | |||||||
| Pan g magnitude | 19.01 (0.01) | ||||||||
| Pan r magnitude | 17.97 (0.005) | ||||||||
| Pan i magnitude | 16.72 (0.003) | ||||||||
| Pan z magnitude | 16.14 (0.005) | ||||||||
| Pan y magnitude | 15.88 (0.004) | ||||||||
| E(B-V) | 0.028 | ||||||||
* 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.