All names: TIC 67585073, SDSS J084349.49+411741.6, KUV 08405+4129, [VV2010] J084349.5+411741, Gaia EDR3 913219689055268480, [VV2006] J084349.5+411741, Gaia DR3 913219689055268480, WD 0840+414, QSO J0843+4117, LAMOST J084349.50+411741.63, Gaia DR2 913219689055268480, 2MASS J08434953+4117415
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|
| Right ascension | 08 43 49.50 (0.08) | 08 43 49.50 | 08 43 49.50 (0.09) | 08 43 49.50 (0.08) | 08 43 49.46 | ||
| Declination | 41 17 41.60 (0.06) | 41 17 41.63 | 41 17 41.60 (0.07) | 41 17 41.60 (0.06) | 41 17 38.76 | ||
| Spectral type | DQ | ||||||
| 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] | 0.07 (0.1) | 0.13 (0.1) | 0.07 (0.1) | |||
| Distance | [pc] | 13731.01 (19424) | 7848.03 (8358) | 13736.26 (19435) | |||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | -0.006383325 (0.1) | 0.179307771 (0.2) | -0.006 (0.1) | |||
| Proper motion (declination) | [mas/yr] | 0.031694435 (0.09) | -0.119711095 (0.1) | 0.032 (0.09) | |||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | 17.66 | ||||||
| V magnitude | 17.41 | ||||||
| R magnitude | |||||||
| I magnitude | |||||||
| J magnitude | 16.56 (0.1) | ||||||
| H magnitude | 16.15 (0.2) | ||||||
| K magnitude | 15.73 (0.3) | ||||||
| u magnitude | 17.35 (0.009) | 17.42 (0.03) | |||||
| g magnitude | 17.24 (0.004) | 17.26 (0.02) | |||||
| r magnitude | 17.14 (0.005) | 17.17 (0.02) | |||||
| i magnitude | 17.19 (0.006) | 17.21 (0.03) | |||||
| z magnitude | 17.15 (0.01) | 17.20 (0.03) | |||||
| G magnitude | 17.57 (0.03) | 17.53 | 17.57 (0.007) | ||||
| BP magnitude | 17.66 (0.03) | 17.60 | |||||
| RP magnitude | 17.26 (0.03) | 17.21 | |||||
| Pan g magnitude | |||||||
| Pan r magnitude | |||||||
| Pan i magnitude | |||||||
| Pan z magnitude | |||||||
| Pan y magnitude | |||||||
| 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.