All names: SDSS J084359.55+172349.9, TIC 358115309, Gaia EDR3 658551389944958336, Gaia DR3 658551389944958336, Gaia DR2 658551389944958336, EPIC 211805660, SDSS J084359.56+172349.9, 2MASS J08435956+1723501, WD 0841+175
| 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 | 08 43 59.54 (0.1) | 08 43 59.56 | 08 43 59.55 (0.2) | 08 43 59.56 | 08 43 59.57 (0.1) | 08 43 59.71 | |||
| Declination | 17 23 49.55 (0.06) | 17 23 49.93 | 17 23 49.57 (0.1) | 17 23 49.95 | 17 23 50.07 (0.06) | 17 23 43.08 | |||
| 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] | 5.15 (0.2) | 5.78 (0.2) | 5.15 (0.2) | |||||
| Distance | [pc] | 194.33 (6) | 172.87 (7) | 191.00 (33) | 194.33 (6) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -20.70202929 (0.2) | -20.00049485 (0.4) | -20.702 (0.2) | |||||
| Proper motion (declination) | [mas/yr] | -32.04977193 (0.1) | -31.87568877 (0.2) | -32.05 (0.1) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | ||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 14.42 (0.03) | ||||||||
| H magnitude | 13.82 (0.03) | ||||||||
| K magnitude | 13.62 (0.03) | ||||||||
| u magnitude | 20.28 (0.05) | 20.30 | 20.29 (0.05) | 20.30 | |||||
| g magnitude | 18.66 (0.008) | 18.67 | 18.66 (0.008) | 18.67 | |||||
| r magnitude | 17.44 (0.006) | 17.43 | 17.44 (0.006) | 17.43 | |||||
| i magnitude | 16.33 (0.005) | 16.34 | 16.33 (0.005) | 16.34 | |||||
| z magnitude | 15.73 (0.007) | 15.73 | 15.73 (0.007) | 15.72 | |||||
| G magnitude | 17.03 (0.01) | 17.03 | 17.03 (0.003) | ||||||
| BP magnitude | 18.22 (0.01) | 18.23 | |||||||
| RP magnitude | 15.89 (0.002) | 15.90 | |||||||
| Pan g magnitude | 18.46 (0.008) | ||||||||
| Pan r magnitude | 17.44 (0.004) | ||||||||
| Pan i magnitude | 16.33 (0.002) | ||||||||
| Pan z magnitude | 15.82 (0.005) | ||||||||
| Pan y magnitude | 15.59 (0.004) | ||||||||
| E(B-V) | 0.010 | ||||||||
* 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.