All names: 2MASS J07092509-3205078, WDJ070925.08-320507.33, LHS 1898, LP 896-18, Gaia EDR3 5604216131195297664, Gaia DR2 5604216131195297664, WD 0707-320, TIC 97708390, Gaia DR3 5604216131195297664, NLTT 17486
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Subasavage et al. 2008 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 09 24.84 (0.02) | 07 09 24.85 (0.02) | 07 09 25.07 | 07 09 24.84 | 07 09 25.08 (0.02) | 07 09 24.85 | 07 09 24.77 | ||
| Declination | -32 04 59.26 (0.02) | -32 04 59.51 (0.03) | -32 05 07.30 | -32 04 59.26 | -32 05 07.33 (0.02) | -32 04 59.51 | -32 05 07.08 | ||
| Spectral type | DA5.0 | DA | DA5.0 | DA5.0 | |||||
| Effective temperature | [K] | 9900.0 (440) | 9881.0 (46) | ||||||
| log(g) | [cgs] | 7.96 (0.008) | |||||||
| Mass | [M☉] | 0.574 (0.006) | |||||||
| 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] | 20.26 (0.03) | 20.28 (0.03) | 20.26 | 20.26 (0.03) | 20.28 (0.03) | 20.90 | ||
| Distance | [pc] | 49.36 (0.06) | 49.32 (0.08) | 47.80 | 49.36 | 49.36 (0.06) | 49.32 (0.08) | 47.85 | |
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -193.0240395 (0.03) | -193.1632722 (0.05) | -193.024 (0.03) | -193.1632722 | ||||
| Proper motion (declination) | [mas/yr] | 504.4493842 (0.03) | 504.498766 (0.05) | 504.449 (0.03) | 504.498766 | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 17.30 | ||||||||
| V magnitude | 15.61 (0.03) | ||||||||
| R magnitude | 15.44 | ||||||||
| I magnitude | |||||||||
| J magnitude | 15.49 (0.06) | 15.48 (0.06) | |||||||
| H magnitude | 15.43 (0.1) | 15.43 (0.1) | |||||||
| K magnitude | 15.38 (0.2) | 15.38 (0.2) | |||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 15.60 (0.002) | 15.62 | 15.60 | 15.60 (0.003) | 15.62 | ||||
| BP magnitude | 15.66 (0.002) | 15.66 | 15.66 | ||||||
| RP magnitude | 15.51 (0.002) | 15.52 | 15.52 | ||||||
| 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.