All names: SDSS J080636.86+251912.2, 2MASS J08063688+2519120, SDSS J080636.85+251912.1, WD 0803+254, Gaia DR2 681873337240018432, TIC 95657335, Gaia EDR3 681873337240018432, [HHD2009] SDSS J0806+2519
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 06 36.86 (3) | 08 06 36.86 | 08 06 36.86 (1) | 08 06 36.85 | 08 06 36.86 (1) | 08 06 35.83 | 08 06 36.86 | |||
| Declination | 25 19 11.93 (1) | 25 19 12.09 | 25 19 11.94 (0.9) | 25 19 12.11 | 25 19 11.92 (0.9) | 25 19 07.68 | 25 19 12.20 | |||
| Spectral type | DB+M | DB+M3V | DB2.1+dM | DB+M | ||||||
| Effective temperature | [K] | 17439.0 (78) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 8.18 (0.04) | 10.00 (0.004) | |||||||
| Mass | [M☉] | |||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 1.14 (1) | 1.14 (1) | |||||||
| Distance | [pc] | 878.53 (1151) | 878.50 (1151) | |||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -2.95410768 (3) | -2.954 (3) | |||||||
| Proper motion (declination) | [mas/yr] | 1.122888191 (2) | 1.123 (2) | |||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | 19.47 | |||||||||
| V magnitude | 19.46 | |||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.71 (0.009) | |||||||||
| H magnitude | 16.27 (0.1) | |||||||||
| K magnitude | 16.16 (0.2) | |||||||||
| u magnitude | 19.65 (0.03) | 19.68 | 19.67 (0.04) | 19.68 | 19.67 (0.04) | |||||
| g magnitude | 19.56 (0.01) | 19.61 | 19.60 (0.02) | 19.61 | 19.60 (0.02) | |||||
| r magnitude | 19.35 (0.01) | 19.40 | 19.38 (0.02) | 19.40 | 19.38 (0.02) | |||||
| i magnitude | 18.60 (0.01) | 18.61 | 18.59 (0.01) | 18.61 | 18.59 (0.02) | |||||
| z magnitude | 17.93 (0.02) | 18.01 | 18.00 (0.02) | 18.01 | 17.99 (0.03) | |||||
| G magnitude | 19.58 (0.05) | 19.41 | 19.41 (0.01) | |||||||
| BP magnitude | 19.54 (0.05) | 19.56 | ||||||||
| RP magnitude | 18.16 (0.03) | 18.14 | ||||||||
| Pan g magnitude | 19.56 (0.01) | |||||||||
| Pan r magnitude | 19.37 (0.009) | |||||||||
| Pan i magnitude | 18.62 (0.01) | |||||||||
| Pan z magnitude | 18.12 (0.008) | |||||||||
| Pan y magnitude | 17.85 (0.01) | |||||||||
| 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.