All names: WDJ070555.11-505255.45, TIC 238164321, Gaia DR3 5504790696302830208, USNO-B1.0 0391-00069062, Gaia DR2 5504790696302830208, Ruiz 207-124, Gaia EDR3 5504790696302830208, ESO 207-124, WD 0704-508, GALEX J070555.3-505254, 2MASS J07055512-5052556
| Parameter | Unit | Gaia EDR3 | O'Brien et al. 2024 | Gaia DR2 | Stilism | Bergeron et al. 1997 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 05 55.36 (0.04) | 07 05 55.35 (0.05) | 07 05 55.36 | 07 05 55.11 (0.04) | 07 05 55.35 | 07 05 54.98 | ||||
| Declination | -50 52 46.56 (0.04) | -50 52 46.84 (0.05) | -50 52 46.56 | -50 52 55.45 (0.04) | -50 52 46.84 | -50 52 59.52 | ||||
| Spectral type | DC | DC | DC | DC | ||||||
| Effective temperature | [K] | 6202.0 (66) | 6580.0 (240) | 5470.0 (64) | ||||||
| log(g) | [cgs] | 8.05 (0.03) | 8.00 (0) | 7.83 (0.01) | ||||||
| Mass | [M☉] | 0.604 (0.02) | 0.57 | 0.473 (0.01) | ||||||
| log(Luminosity) | [L☉] | -3.58 | ||||||||
| Cooling age | [Gyr] | 2.4200 | ||||||||
| 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] | 26.94 (0.04) | 26.94 (0.04) | 26.90 (0.05) | 26.94 | 26.94 (0.04) | 26.90 (0.05) | |||
| Distance | [pc] | 37.13 (0.06) | 37.12 (0.06) | 37.17 (0.07) | 37.13 | 37.13 (0.06) | 37.17 (0.07) | |||
| Composition | He | |||||||||
| Proper motion (right ascension) | [mas/yr] | 148.1526121 (0.06) | 148.2521528 (0.1) | 148.153 (0.06) | 148.2521528 | |||||
| Proper motion (declination) | [mas/yr] | 555.6564819 (0.06) | 555.5821588 (0.1) | 555.656 (0.06) | 555.5821588 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 17.40 | |||||||||
| V magnitude | 16.94 | 17.00 | ||||||||
| R magnitude | 16.65 | 16.60 | ||||||||
| I magnitude | 16.37 | |||||||||
| J magnitude | 16.24 | 16.08 (0.06) | ||||||||
| H magnitude | 16.11 | 16.09 (0.1) | ||||||||
| K magnitude | 15.69 (0.2) | |||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 16.83 (0.005) | 16.85 | 16.83 | 16.83 (0.003) | 16.85 | |||||
| BP magnitude | 17.09 (0.005) | 17.09 | 17.09 | |||||||
| RP magnitude | 16.43 (0.006) | 16.43 | 16.43 | |||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| 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.