All names: WD 1105+321, Ton 57, ATO J167.1416+31.8978, ZTF J110833.98+315352.5, Gaia DR2 757803896562843392, CSO 74, WISEA J110834.01+315352.0, WISE J110834.03+315351.9, SDSS J110834.01+315352.5, USNO-B1.0 1218-00206354, Gaia EDR3 757803896562843392, GALEX J110834.0+315352, Gaia DR3 757803896562843392
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 08 33.99 (0.07) | 11 08 33.99 (0.1) | 11 08 33.99 | 11 08 34.03 (0.07) | 11 08 33.29 | ||||
| Declination | 31 53 52.42 (0.05) | 31 53 52.42 (0.08) | 31 53 52.42 | 31 53 52.43 (0.05) | 31 54 02.52 | ||||
| Spectral type | DA | DA | DA2.2 | DA6 | DA | ||||
| Effective temperature | [K] | 23230.0 (448) | 19874.0 (698) | ||||||
| log(g) | [cgs] | 7.28 (0.06) | 6.81 (0.04) | ||||||
| Mass | [M☉] | 0.39 (0.01) | 0.228 (0.01) | ||||||
| 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] | 2.36 (0.08) | 2.27 (0.1) | 2.36 | 2.36 (0.08) | ||||
| Distance | [pc] | 424.26 (14) | 439.76 (20) | 408.00 | 424.26 | 424.27 (14) | |||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -31.37352646 (0.07) | -31.3740794 (0.2) | -31.374 (0.07) | |||||
| Proper motion (declination) | [mas/yr] | -0.927325651 (0.07) | -0.921205298 (0.2) | -0.927 (0.07) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 16.70 | ||||||||
| V magnitude | 17.30 | ||||||||
| R magnitude | 17.20 | ||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 16.97 (0.008) | ||||||||
| g magnitude | 16.95 (0.004) | ||||||||
| r magnitude | 17.28 (0.005) | ||||||||
| i magnitude | 17.47 (0.007) | ||||||||
| z magnitude | 17.56 (0.01) | ||||||||
| G magnitude | 17.17 (0.01) | 17.20 | 17.17 | 17.17 (0.005) | |||||
| BP magnitude | 17.12 (0.01) | 17.07 | |||||||
| RP magnitude | 17.23 (0.03) | 17.22 | |||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.018 | ||||||||
* 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.