All names: Cl* Melotte 25 REID 145, SDSS J041827.55+192902.6, LAMOST J041827.54+192902.6, WDJ041827.54+192902.87, WDJ041827.54+192902.88, Gaia DR2 48601544980508672, Gaia EDR3 48601544980508672, Gaia DR3 48601544980508672, LP 414-2076
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 18 27.61 (0.07) | 04 18 27.61 | 04 18 27.61 | 04 18 27.54 (0.07) | 04 18 27.61 | |||
| Declination | 19 29 02.24 (0.04) | 19 29 02.26 | 19 29 02.24 | 19 29 02.88 (0.04) | 19 29 02.26 | |||
| Spectral type | DB | DB | ||||||
| Effective temperature | [K] | 11838.0 (141) | ||||||
| log(g) | [cgs] | 7.98 (0.02) | ||||||
| Mass | [M☉] | 0.573 (0.01) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 11.01 (0.09) | 11.10 (0.1) | 11.01 | 11.01 (0.09) | 11.10 (0.1) | ||
| Distance | [pc] | 90.86 (0.8) | 90.12 (1) | 90.86 | 90.86 (0.8) | 90.12 (1) | ||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 67.3558085 (0.09) | 67.38680893 (0.3) | 67.356 (0.09) | 67.38680893 | |||
| Proper motion (declination) | [mas/yr] | -39.7410642 (0.08) | -39.85226666 (0.2) | -39.741 (0.07) | -39.85226666 | |||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 16.29 | |||||||
| V magnitude | 16.51 | |||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 16.52 (0.006) | 16.52 (0.006) | ||||||
| g magnitude | 16.49 (0.004) | 16.49 (0.004) | ||||||
| r magnitude | 16.71 (0.004) | 16.71 (0.004) | ||||||
| i magnitude | 16.88 (0.005) | 16.88 (0.005) | ||||||
| z magnitude | 17.09 (0.01) | 17.09 (0.01) | ||||||
| G magnitude | 16.58 (0.004) | 16.61 | 16.58 | 16.58 (0.003) | 16.61 | |||
| BP magnitude | 16.58 (0.004) | 16.55 | 16.55 | |||||
| RP magnitude | 16.59 (0.005) | 16.58 | 16.58 | |||||
| Pan g magnitude | 16.54 (0.005) | |||||||
| Pan r magnitude | 16.72 (0.002) | |||||||
| Pan i magnitude | 16.91 (0.002) | |||||||
| Pan z magnitude | 17.11 (0.005) | |||||||
| Pan y magnitude | 17.22 (0.007) | |||||||
| E(B-V) | 0.005 | |||||||
* 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.