All names: TIC 48138921, Gaia DR2 2144357122264826752, WISE J185005.20+502421.8, 2MASS J18500520+5024218, GALEX J185005.3+502422, O11J185005+502422, GALEX J185005.3+502421, UCAC4 703-061927, Gaia DR3 2144357122264826752, WISEA J185005.20+502421.7
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 18 50 05.00 | 18 50 05.21 (0.02) | ||
| Declination | 50 24 22.00 | 50 24 21.93 (0.02) | ||
| Spectral type | sd | |||
| 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] | 0.35 (0.03) | 0.31 (0.02) | |
| Distance | [pc] | 2822.47 (209) | 3248.86 (207) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.187 (0.05) | -4.195 (0.02) | |
| Proper motion (declination) | [mas/yr] | -10.299 (0.06) | -10.149 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.38 (0.2) | |||
| V magnitude | 15.20 (0.07) | |||
| R magnitude | 15.38 (0.1) | |||
| I magnitude | ||||
| J magnitude | 14.60 (0.03) | 14.60 (0.03) | ||
| H magnitude | 14.52 (0.04) | 14.52 (0.04) | ||
| K magnitude | 14.39 (0.1) | 14.39 (0.1) | ||
| u magnitude | ||||
| g magnitude | 15.20 (0.2) | |||
| r magnitude | 15.16 (0.1) | |||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.16 (0.0004) | 15.15 (0.003) | ||
| BP magnitude | 15.26 (0.004) | |||
| RP magnitude | 14.91 (0.002) | |||
| Pan g magnitude | 15.27 (0.002) | |||
| Pan r magnitude | 15.22 (0.003) | |||
| Pan i magnitude | 15.25 (0.002) | |||
| Pan z magnitude | 15.30 (0.003) | |||
| Pan y magnitude | 15.34 (0.005) | |||
| E(B-V) | 0.036 | |||
* 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.