All names: SDSS J150815.89+004118.3, WiggleZ S15J150815888+00411825, Gaia DR2 4420003075411463040, Gaia DR3 4420003075411463040, SDSS J150815.89+004118.4, GALEX J150815.9+004120, Gaia EDR3 4420003075411463040
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 08 15.87 (0.8) | 15 08 15.89 | 15 08 15.87 (1) | 15 08 15.89 | 15 08 15.88 (0.8) | |||
| Declination | 00 41 18.08 (0.5) | 00 41 18.40 | 00 41 18.09 (0.8) | 00 41 18.39 | 00 41 18.31 (0.5) | |||
| Spectral type | WD+MS | DA+dM | ||||||
| Effective temperature | [K] | 9509.0 (337) | ||||||
| log(g) | [cgs] | 7.35 (0.7) | ||||||
| Mass | [M☉] | 0.3 (0.3) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 1.81 (0.8) | 0.26 (1) | 1.81 (0.8) | ||||
| Distance | [pc] | 551.58 (250) | 3804.77 (18203) | 814.00 (292) | 551.57 (250) | |||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -9.340233947 (1) | -8.768441307 (2) | -9.34 (1) | ||||
| Proper motion (declination) | [mas/yr] | -14.32716737 (0.8) | -12.25518883 (2) | -14.327 (0.8) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | WDMS | |||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 21.56 (0.1) | 21.55 | 21.56 (0.1) | |||||
| g magnitude | 20.97 (0.03) | 20.99 | 20.97 (0.03) | |||||
| r magnitude | 20.71 (0.03) | 20.73 | 20.71 (0.04) | |||||
| i magnitude | 20.09 (0.03) | 20.12 | 20.09 (0.03) | |||||
| z magnitude | 19.43 (0.06) | 19.46 | 19.43 (0.06) | |||||
| G magnitude | 20.44 (0.1) | 20.50 | 20.44 (0.009) | |||||
| BP magnitude | 20.99 (0.1) | 20.76 | ||||||
| RP magnitude | 19.89 (0.1) | 19.45 | ||||||
| Pan g magnitude | 20.92 (0.03) | |||||||
| Pan r magnitude | 20.77 (0.02) | |||||||
| Pan i magnitude | 20.11 (0.02) | |||||||
| Pan z magnitude | 19.52 (0.02) | |||||||
| Pan y magnitude | 19.17 (0.05) | |||||||
| E(B-V) | 0.047 | |||||||
* 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.