All names: SDSS J085509.49+133947.0, TIC 46381073, SDSS J085509.50+133947.0, Gaia EDR3 608566083813344512, GALEX J085509.4+133946, WD 0852+138, SDSS J085509.49+133946.9, 2MASS J08550954+1339464, Gaia DR3 608566083813344512, Gaia DR2 608566083813344512
| 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) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 55 09.47 (0.3) | 08 55 09.49 | 08 55 09.47 (0.3) | 08 55 09.49 | 08 55 09.50 (0.3) | 08 55 09.62 | 08 55 09.50 | ||||
| Declination | 13 39 47.02 (0.1) | 13 39 47.06 | 13 39 47.02 (0.2) | 13 39 47.02 | 13 39 47.00 (0.1) | 13 39 42.84 | 13 39 47.02 | ||||
| Spectral type | DA+M | DA+M | DA4.9 M | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 10189.0 (277) | 6424.0 (120) | ||||||||
| log(g) | [cgs] | 7.96 (0.3) | 6.31 (0.7) | ||||||||
| Mass | [M☉] | 0.58 (0.2) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 3.29 (0.3) | 3.23 (0.3) | 3.29 (0.3) | |||||||
| Distance | [pc] | 303.54 (26) | 309.52 (33) | 303.54 (26) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -26.42918086 (0.4) | -25.88335928 (0.7) | -26.429 (0.4) | |||||||
| Proper motion (declination) | [mas/yr] | 1.690073447 (0.2) | 1.461559442 (0.4) | 1.69 (0.2) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 17.00 (0.2) | ||||||||||
| H magnitude | 16.32 (0.2) | ||||||||||
| K magnitude | 16.03 (0.3) | ||||||||||
| u magnitude | 19.99 (0.04) | 20.08 | 20.10 (0.05) | 20.08 | 20.09 (0.06) | ||||||
| g magnitude | 19.50 (0.01) | 19.56 | 19.56 (0.01) | 19.56 | 19.55 (0.02) | ||||||
| r magnitude | 19.43 (0.01) | 19.47 | 19.48 (0.02) | 19.47 | 19.47 (0.02) | ||||||
| i magnitude | 18.85 (0.01) | 18.87 | 18.86 (0.02) | 18.87 | 18.87 (0.02) | ||||||
| z magnitude | 18.20 (0.02) | 18.23 | 18.24 (0.03) | 18.24 | 18.24 (0.03) | ||||||
| G magnitude | 19.13 (0.03) | 19.14 | 19.13 (0.003) | ||||||||
| BP magnitude | 19.58 (0.03) | 19.52 | |||||||||
| RP magnitude | 18.41 (0.03) | 18.32 | |||||||||
| Pan g magnitude | 19.51 (0.01) | ||||||||||
| Pan r magnitude | 19.46 (0.01) | ||||||||||
| Pan i magnitude | 18.87 (0.01) | ||||||||||
| Pan z magnitude | 18.34 (0.007) | ||||||||||
| Pan y magnitude | 18.05 (0.01) | ||||||||||
| E(B-V) | 0.021 | ||||||||||
* 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.