All names: 2MASS J06393187+2435463, WDS J06395+2436B, Gaia EDR3 3383000470383852672, WDJ063931.88+243546.15, UCAC4 573-032436, ** TOK 19B, TIC 284327840, Gaia DR3 3383000470383852672, Gaia DR2 3383000470383852672
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | McCleery et al. 2020 | Tremblay et al. 2020 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 06 39 31.90 (0.04) | 06 39 31.90 (0.05) | 06 39 31.90 | 06 39 31.90 | 06 39 31.88 (0.04) | 06 39 31.90 | |||||
| Declination | 24 35 47.52 (0.03) | 24 35 47.47 (0.05) | 24 35 47.47 | 24 35 47.52 | 24 35 46.15 (0.03) | 24 35 47.47 | |||||
| Spectral type | DC | DC | DC | DC | DC | ||||||
| Effective temperature | [K] | 9245.0 (280) | 8476.0 (114) | 8480.0 (110) | 8975.0 (93) | ||||||
| log(g) | [cgs] | 8.12 (0.07) | 7.92 (0.04) | 7.92 (0.04) | 8.07 (0.02) | ||||||
| Mass | [M☉] | 0.654 (0.04) | 0.619 (0.01) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| log(N/He) | |||||||||||
| log(O/He) | |||||||||||
| log(Na/He) | |||||||||||
| log(Mg/He) | |||||||||||
| log(Al/He) | |||||||||||
| log(Si/He) | |||||||||||
| log(P/He) | |||||||||||
| log(S/He) | |||||||||||
| log(Cl/He) | |||||||||||
| log(Sc/He) | |||||||||||
| log(Ti/He) | |||||||||||
| log(V/He) | |||||||||||
| log(Cr/He) | |||||||||||
| log(Mn/He) | |||||||||||
| log(Fe/He) | |||||||||||
| log(Co/He) | |||||||||||
| log(Ni/He) | |||||||||||
| log(Cu/He) | |||||||||||
| log(Zn/He) | |||||||||||
| log(Ga/He) | |||||||||||
| log(Ge/He) | |||||||||||
| log(Sr/He) | |||||||||||
| Parallax | [mas] | 27.90 (0.04) | 27.90 (0.04) | 27.81 (0.05) | 27.81 (0.05) | 27.90 | 27.90 (0.04) | 27.81 (0.05) | |||
| Distance | [pc] | 35.85 (0.05) | 35.84 (0.05) | 35.96 (0.07) | 35.96 (0.07) | 35.85 | 35.85 (0.05) | 35.96 (0.07) | |||
| Composition | He | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 15.1557235 (0.05) | 15.12840456 (0.09) | 15.156 (0.05) | 15.12840456 | ||||||
| Proper motion (declination) | [mas/yr] | 85.13306876 (0.04) | 85.16544885 (0.08) | 85.133 (0.04) | 85.16544885 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | 14.58 (0.3) | ||||||||||
| K magnitude | 14.90 (0.2) | ||||||||||
| u magnitude | |||||||||||
| g magnitude | |||||||||||
| r magnitude | |||||||||||
| i magnitude | |||||||||||
| z magnitude | |||||||||||
| G magnitude | 15.51 (0.009) | 15.53 | 15.53 | 15.51 | 15.51 (0.003) | 15.53 | |||||
| BP magnitude | 15.57 (0.009) | 15.48 | 15.48 | ||||||||
| RP magnitude | 15.40 (0.01) | 15.34 | 15.34 | ||||||||
| Pan g magnitude | 15.10 (0.002) | ||||||||||
| Pan r magnitude | 15.39 (0.02) | ||||||||||
| Pan i magnitude | 15.57 (0.03) | ||||||||||
| Pan z magnitude | 15.65 (0.02) | ||||||||||
| Pan y magnitude | 15.46 (0) | ||||||||||
| E(B-V) | 0.000 | ||||||||||
* 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.