All names: Gaia DR2 1220386923909228800, TIC 258175685, Gaia DR3 1220386923909228800, GALEX J155808.4+264225, SBC9 3386, Gaia EDR3 1220386923909228800, SDSS J155808.49+264225.7, WD 1556+268, 2MASS J15580850+2642256, [SGR2010] J1558+2642, SDSS J155808.50+264225.8
| 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 | 15 58 08.50 (0.05) | 15 58 08.50 | 15 58 08.50 (0.08) | 15 58 08.50 | 15 58 08.50 (0.05) | 15 58 07.80 | 15 58 08.50 | |||
| Declination | 26 42 25.68 (0.07) | 26 42 25.80 | 26 42 25.69 (0.1) | 26 42 25.78 | 26 42 25.77 (0.07) | 26 42 21.96 | 26 42 25.76 | |||
| Spectral type | DA+M | DA+M4 | __3.5 | DA+M | ||||||
| Effective temperature | [K] | 18298.0 (998) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 8.55 (0.4) | 10.00 (0.003) | |||||||
| Mass | [M☉] | 0.955 (0.2) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 2.74 (0.1) | 2.83 (0.1) | 2.74 (0.1) | ||||||
| Distance | [pc] | 364.79 (13) | 353.69 (18) | 413.00 (125) | 364.79 (13) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -1.425659988 (0.07) | -1.37971606 (0.2) | -1.426 (0.07) | ||||||
| Proper motion (declination) | [mas/yr] | -5.78323793 (0.1) | -5.341377281 (0.2) | -5.783 (0.1) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | yes | WDMS | |||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 15.13 (0.05) | |||||||||
| H magnitude | 14.37 (0.05) | |||||||||
| K magnitude | 14.10 (0.07) | |||||||||
| u magnitude | 20.04 (0.03) | 19.82 | 19.82 (0.03) | 19.82 | 19.82 (0.03) | |||||
| g magnitude | 19.22 (0.01) | 19.18 | 19.17 (0.01) | 19.17 | 19.18 (0.02) | |||||
| r magnitude | 18.54 (0.008) | 18.47 | 18.47 (0.008) | 18.47 | 18.47 (0.02) | |||||
| i magnitude | 17.32 (0.006) | 17.31 | 17.32 (0.007) | 17.31 | 17.31 (0.02) | |||||
| z magnitude | 16.56 (0.008) | 16.56 | 16.54 (0.009) | 16.54 | 16.56 (0.01) | |||||
| G magnitude | 17.97 (0.02) | 17.99 | 17.97 (0.003) | |||||||
| BP magnitude | 19.07 (0.02) | 19.03 | ||||||||
| RP magnitude | 16.86 (0.005) | 16.87 | ||||||||
| Pan g magnitude | 19.16 (0.008) | |||||||||
| Pan r magnitude | 18.58 (0.007) | |||||||||
| Pan i magnitude | 17.39 (0.005) | |||||||||
| Pan z magnitude | 16.71 (0.004) | |||||||||
| Pan y magnitude | 16.37 (0.004) | |||||||||
| E(B-V) | 0.038 | |||||||||
* 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.