All names: 2MASS J23542299-5149304, WDJ235422.99-514930.65, TIC 201228053, LEHPM 6451, Gaia EDR3 6521875098442800512, 235422.99-514930.65, Gaia DR3 6521875098442800512, Gaia DR2 6521875098442800512
| Parameter | Unit | Gaia EDR3 | O'Brien et al. 2024 | O'Brien et al. 2022 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 54 23.07 (0.04) | 23 54 23.07 | 23 54 23.07 | 23 54 22.99 (0.04) | 23 54 23.07 | ||||
| Declination | -51 49 37.26 (0.05) | -51 49 37.05 | -51 49 37.26 | -51 49 30.65 (0.05) | -51 49 37.05 | ||||
| Spectral type | DC | DC: | DC | DC | |||||
| Effective temperature | [K] | 4469.0 (45) | 4470.0 (50) | 4561.0 (24) | |||||
| log(g) | [cgs] | 7.81 (0.03) | 7.81 (0.03) | 7.88 (0.01) | |||||
| Mass | [M☉] | 0.465 (0.01) | 0.505 (0.01) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 32.90 (0.08) | 32.90 (0.08) | 32.90 (0.08) | 32.78 (0.1) | 32.90 | 32.90 (0.08) | 32.78 (0.1) | |
| Distance | [pc] | 30.40 (0.07) | 30.40 (0.07) | 30.40 (0.07) | 30.51 (0.1) | 30.40 | 30.40 (0.07) | 30.51 (0.1) | |
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 47.03377457 (0.05) | 47.11693501 (0.1) | 47.034 (0.05) | 47.11693501 | ||||
| Proper motion (declination) | [mas/yr] | -413.1106464 (0.07) | -412.9653445 (0.1) | -413.111 (0.07) | -412.9653445 | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.16 (0.1) | ||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 17.56 (0.009) | 17.59 | 17.56 | 17.56 (0.003) | 17.59 | ||||
| BP magnitude | 18.16 (0.009) | 18.20 | 18.20 | ||||||
| RP magnitude | 16.84 (0.005) | 16.85 | 16.85 | ||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.001 | ||||||||
* 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.