All names: SDSS J081322.91+343758.5, WISEA J081322.90+343758.6, Gaia EDR3 902808623906280576, Gaia DR2 902808623906280576, WD 0810+347, WISE J081322.90+343758.7, [VV2010] J081322.9+343758, SDSS J081322.91+343758.6, [HHD2009] SDSS J0813+3437, Gaia DR3 902808623906280576
| 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 13 22.92 (0.3) | 08 13 22.91 | 08 13 22.92 (0.4) | 08 13 22.91 | 08 13 22.91 (0.3) | 08 13 22.58 | |||
| Declination | 34 37 58.51 (0.2) | 34 37 58.57 | 34 37 58.51 (0.3) | 34 37 58.51 | 34 37 58.56 (0.2) | 34 37 55.20 | |||
| Spectral type | DA:+K | DA:1.1 K | |||||||
| Effective temperature | [K] | 43969.0 (9094) | |||||||
| log(g) | [cgs] | 6.81 (0.8) | |||||||
| Mass | [M☉] | 0.31 (0.2) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.78 (0.3) | 0.03 (0.6) | 0.78 (0.3) | |||||
| Distance | [pc] | 1275.37 (512) | 29055.54 (504084) | 1213.00 (203) | 1275.35 (512) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 3.486286408 (0.3) | 2.477771653 (0.8) | 3.486 (0.3) | |||||
| Proper motion (declination) | [mas/yr] | -3.258663052 (0.3) | -2.439550045 (0.6) | -3.259 (0.3) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | WDMS | yes | |||||||
| B magnitude | 20.25 | ||||||||
| V magnitude | 19.79 | ||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 20.22 (0.04) | 20.15 | 20.24 (0.04) | 20.14 | |||||
| g magnitude | 20.11 (0.02) | 20.07 | 20.12 (0.02) | 20.06 | |||||
| r magnitude | 19.58 (0.01) | 19.57 | 19.59 (0.02) | 19.56 | |||||
| i magnitude | 19.20 (0.01) | 19.17 | 19.21 (0.02) | 19.17 | |||||
| z magnitude | 18.87 (0.03) | 18.97 | 18.86 (0.03) | 18.97 | |||||
| G magnitude | 19.50 (0.05) | 19.56 | 19.50 (0.005) | ||||||
| BP magnitude | 20.00 (0.05) | 19.93 | |||||||
| RP magnitude | 18.93 (0.04) | 18.84 | |||||||
| Pan g magnitude | 20.08 (0.02) | ||||||||
| Pan r magnitude | 19.64 (0.01) | ||||||||
| Pan i magnitude | 19.23 (0.008) | ||||||||
| Pan z magnitude | 19.02 (0.02) | ||||||||
| Pan y magnitude | 18.90 (0.04) | ||||||||
| E(B-V) | 0.035 | ||||||||
* 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.