All names: Gaia EDR3 6749528431218859392, WISEA J200732.08-301225.7, Gaia DR3 6749528431218859392, 2MASS J20073207-3012251, UCAC4 299-239942, WD 2004-303, GALEX J200732.1-301225, WDJ200732.08-301225.23, MCT 2004-3021, WISE J200732.08-301225.6, TIC 48787590, Gaia DR2 6749528431218859392
| Parameter | Unit | Gaia EDR3 | Bergeron et al. 2021 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 07 32.08 (0.04) | 20 07 32.08 (0.06) | 20 07 32.08 | 20 07 32.08 (0.04) | 20 07 32.08 | 20 07 32.04 | |||
| Declination | -30 12 25.43 (0.03) | -30 12 25.43 (0.04) | -30 12 25.43 | -30 12 25.23 (0.03) | -30 12 25.43 | -30 12 22.32 | |||
| Spectral type | DA | DA | DA | DA | |||||
| Effective temperature | [K] | 17043.0 (609) | 15970.0 (255) | ||||||
| log(g) | [cgs] | 8.17 (0.1) | 8.02 (0.01) | ||||||
| Mass | [M☉] | 0.72 (0.07) | 0.629 (0.01) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | 0.1832 | |||||||
| 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] | 11.53 (0.05) | 11.54 (0.07) | 11.53 | 11.53 (0.05) | 11.54 (0.07) | |||
| Distance | [pc] | 86.75 (0.3) | 86.00 | 86.69 (0.5) | 86.75 | 86.75 (0.3) | 86.69 (0.5) | ||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -0.171704205 (0.05) | -0.127901867 (0.1) | -0.172 (0.05) | -0.127901867 | ||||
| Proper motion (declination) | [mas/yr] | -12.46718291 (0.04) | -12.51122498 (0.07) | -12.467 (0.04) | -12.51122498 | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.93 (0.06) | ||||||||
| V magnitude | 15.91 (0.09) | ||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.31 (0.1) | ||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | |||||||||
| g magnitude | 15.78 (0.02) | ||||||||
| r magnitude | 16.13 (0.03) | ||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 15.92 (0.003) | 15.94 | 15.92 | 15.92 (0.003) | 15.94 | ||||
| BP magnitude | 15.88 (0.003) | 15.86 | 15.86 | ||||||
| RP magnitude | 16.04 (0.005) | 16.05 | 16.05 | ||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.004 | ||||||||
* 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.