All names: Gaia DR2 2421871039614828672, PHL 584, MCT 2352-1249, WD 2352-128, GALEX J235513.6-123255, Gaia DR3 2421871039614828672, USNO-B1.0 0774-00861216, Gaia EDR3 2421871039614828672, PB 8098
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Bergeron et al. 2021 | Gaia DR2 | Stilism | Koester et al. 2009 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 55 13.65 (0.08) | 23 55 13.65 (0.1) | 23 55 13.65 | 23 55 13.66 (0.08) | 23 55 13.15 | |||||
| Declination | -12 32 55.25 (0.07) | -12 32 55.24 (0.1) | -12 32 55.25 | -12 32 54.94 (0.07) | -12 32 48.12 | |||||
| Spectral type | DA | DA | DA1 | DA1 | ||||||
| Effective temperature | [K] | 44928.0 (1519) | 40294.0 (351) | |||||||
| log(g) | [cgs] | 8.00 (0.1) | 7.95 (0.04) | |||||||
| Mass | [M☉] | 0.676 (0.07) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.0026 | ||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| log(C/H) | ||||||||||
| log(N/H) | ||||||||||
| log(O/H) | ||||||||||
| log(Na/H) | ||||||||||
| log(Mg/H) | ||||||||||
| log(Al/H) | ||||||||||
| log(Si/H) | ||||||||||
| log(P/H) | ||||||||||
| log(S/H) | ||||||||||
| log(Sc/H) | ||||||||||
| log(Ti/H) | ||||||||||
| log(Cr/H) | ||||||||||
| log(Mn/H) | ||||||||||
| log(Fe/H) | ||||||||||
| log(Ni/H) | ||||||||||
| Parallax | [mas] | 2.25 (0.1) | 2.41 (0.2) | 2.25 | 2.25 (0.1) | |||||
| Distance | [pc] | 444.19 (21) | 444.00 | 415.54 (35) | 444.19 | 444.19 (21) | ||||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -15.54246227 (0.09) | -15.413 (0.3) | -15.542 (0.1) | ||||||
| Proper motion (declination) | [mas/yr] | -19.77895889 (0.08) | -19.908 (0.2) | -19.779 (0.08) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 17.40 | |||||||||
| V magnitude | 16.49 | 17.80 | ||||||||
| R magnitude | 17.80 | |||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 17.36 (0.008) | 17.38 | 17.36 | 17.36 (0.003) | ||||||
| BP magnitude | 17.20 (0.008) | 17.12 | ||||||||
| RP magnitude | 17.70 (0.01) | 17.63 | ||||||||
| Pan g magnitude | 17.19 (0.006) | |||||||||
| Pan r magnitude | 17.61 (0.007) | |||||||||
| Pan i magnitude | 17.98 (0.006) | |||||||||
| Pan z magnitude | 18.28 (0.01) | |||||||||
| Pan y magnitude | 18.48 (0.02) | |||||||||
| E(B-V) | 0.015 | |||||||||
* 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.