All names: Gaia DR3 6613289285448236288, WDJ220437.98-312713.75, APMPM J2205-3127, 2MASS J22043796-3127133, LEP2204-3127, NLTT 52829, TIC 80086330, CNS5 5455, WDJ220437.98-312713.76, Gaia DR2 6613289285448236288, LP 931-9, 220437.98-312713.76, LHS 3753, Gaia EDR3 6613289285448236288
| Parameter | Unit | Gaia EDR3 | O'Brien et al. 2024 | O'Brien et al. 2022 | Subasavage et al. 2022 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 04 38.39 (0.06) | 22 04 38.37 | 22 04 38.39 | 22 04 37.98 (0.06) | 22 04 38.37 | |||||
| Declination | -31 27 20.57 (0.06) | -31 27 20.36 | -31 27 20.57 | -31 27 13.75 (0.06) | -31 27 20.36 | |||||
| Spectral type | DA | DA | DC | DC | DA | |||||
| Effective temperature | [K] | 4810.0 (33) | 4810.0 (30) | 4889.0 (70) | 4845.0 (18) | |||||
| log(g) | [cgs] | 7.92 (0.03) | 7.92 (0.03) | 7.99 (0.04) | 7.94 (0.01) | |||||
| Mass | [M☉] | 0.53 (0.02) | 0.571 (0.04) | 0.543 (0.008) | ||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| 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] | 40.69 (0.07) | 40.69 (0.07) | 40.69 (0.07) | 40.58 (0.1) | 40.58 (0.09) | 40.69 | 40.69 (0.07) | 40.58 (0.09) | |
| Distance | [pc] | 24.58 (0.04) | 24.58 (0.04) | 24.58 (0.04) | 24.64 (0.05) | 24.64 (0.06) | 24.58 | 24.58 (0.04) | 24.64 (0.06) | |
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | 324.5536219 (0.08) | 324.791809 (0.1) | 324.554 (0.08) | 324.791809 | |||||
| Proper motion (declination) | [mas/yr] | -426.0487207 (0.07) | -425.8223062 (0.2) | -426.049 (0.07) | -425.8223062 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 18.14 | 17.80 | ||||||||
| V magnitude | 17.14 | |||||||||
| R magnitude | 16.63 | |||||||||
| I magnitude | 16.16 | |||||||||
| J magnitude | 15.57 | 15.57 (0.07) | ||||||||
| H magnitude | 15.29 | 15.29 (0.1) | ||||||||
| K magnitude | 15.48 | 15.48 (0.2) | ||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 16.90 (0.006) | 16.91 | 16.90 | 16.90 (0.003) | 16.91 | |||||
| BP magnitude | 17.42 (0.006) | 17.46 | 17.46 | |||||||
| RP magnitude | 16.24 (0.003) | 16.25 | 16.25 | |||||||
| 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.