All names: SDSS J085911.28+043507.2, 2MASS J08591127+0435071, SDSS J085911.28+043507.1, Gaia DR3 578703481146706304, TIC 270391045, GALEX J085911.3+043507, WD 0856+047, Gaia DR2 578703481146706304, [HHD2009] SDSS J0859+0435, Gaia EDR3 578703481146706304, [SGR2010] J0859+0435
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 59 11.29 (1) | 08 59 11.28 | 08 59 11.29 (1) | 08 59 11.28 | 08 59 11.29 (1) | 08 59 11.28 | 08 59 10.66 | 08 59 11.28 | |||
| Declination | 04 35 07.15 (0.6) | 04 35 07.17 | 04 35 07.15 (1) | 04 35 07.12 | 04 35 07.15 (0.6) | 04 35 07.17 | 04 35 06.00 | 04 35 07.18 | |||
| Spectral type | DA+M | DA+dM | DA+M | DA d | DA+M | ||||||
| Effective temperature | [K] | 18120.0 (1164) | 6300.0 (2) | 6300.0 (1) | |||||||
| log(g) | [cgs] | 7.98 (0.3) | 6.99 (0.2) | 6.86 (0.3) | |||||||
| Mass | [M☉] | 0.61 (0.2) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | ||||||||||
| Distance | [pc] | 661.00 (139) | |||||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 1.0 (3) | 2.5 | ||||||||
| Proper motion (declination) | [mas/yr] | 4.0 (3) | 4.2 | ||||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.25 (0.1) | ||||||||||
| H magnitude | 15.74 (0.01) | ||||||||||
| K magnitude | 15.48 (0.02) | ||||||||||
| u magnitude | 19.56 (0.03) | 19.58 | 19.55 (0.03) | 19.58 (0.03) | 19.58 | 19.58 (0.03) | |||||
| g magnitude | 19.23 (0.01) | 19.26 | 19.23 (0.01) | 19.26 (0.02) | 19.26 | 19.26 (0.02) | |||||
| r magnitude | 18.97 (0.01) | 19.01 | 19.00 (0.01) | 19.01 (0.02) | 19.01 | 18.99 (0.02) | |||||
| i magnitude | 18.18 (0.008) | 18.20 | 18.17 (0.008) | 18.20 (0.02) | 18.20 | 18.19 (0.02) | |||||
| z magnitude | 17.60 (0.01) | 17.63 | 17.61 (0.01) | 17.62 (0.02) | 17.63 | 17.62 (0.02) | |||||
| G magnitude | 19.02 (0.02) | 18.85 | 19.02 (0.01) | ||||||||
| BP magnitude | 19.20 (0.02) | 19.24 | |||||||||
| RP magnitude | 17.78 (0.01) | 17.79 | |||||||||
| Pan g magnitude | 19.21 (0.01) | ||||||||||
| Pan r magnitude | 18.99 (0.007) | ||||||||||
| Pan i magnitude | 18.21 (0.006) | ||||||||||
| Pan z magnitude | 17.74 (0.009) | ||||||||||
| Pan y magnitude | 17.50 (0.01) | ||||||||||
| E(B-V) | 0.037 | ||||||||||
* 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.