All names: Gaia DR2 4422334138846247296, SDSS J151848.26+033209.0, Gaia DR3 4422334138846247296, Gaia EDR3 4422334138846247296, GALEX J151848.2+033210
| Parameter | Unit | Gaia EDR3 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 15 18 48.21 (0.4) | 15 18 48.26 (0.4) | ||
| Declination | 03 32 09.12 (0.4) | 03 32 08.96 (0.4) | ||
| Spectral type | DB | |||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 2.85 (0.5) | 2.85 (0.5) | |
| Distance | [pc] | 351.33 (58) | 351.33 (58) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -51.62 (0.5) | -51.62 (0.5) | |
| Proper motion (declination) | [mas/yr] | 9.833 (0.5) | 9.833 (0.5) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | 19.93 (0.04) | |||
| g magnitude | 19.89 (0.02) | |||
| r magnitude | 20.04 (0.02) | |||
| i magnitude | 20.25 (0.04) | |||
| z magnitude | 20.37 (0.1) | |||
| G magnitude | 19.96 (0.006) | 19.96 (0.006) | ||
| BP magnitude | 20.00 (0.07) | |||
| RP magnitude | 19.91 (0.08) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.031 | |||
* 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.