All names: WD 0841+699.1, LSPM J0846+6944S, NLTT 20129, WDJ084600.74+694434.76, LP035-288, J0846+6944, LP 35-288, Gaia DR2 1118460924702185088, G 252-21B, Gaia DR3 1118460924702185088, ** LDS 1681B, WDS J08460+6945B
| Parameter | Unit | Pan-STARRS DR1 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 46 00.06 (0.08) | 08 46 00.03 | 08 46 00.73 (0.07) | 08 46 00.06 | 08 45 57.31 | ||||||
| Declination | 69 44 29.87 (0.1) | 69 44 29.72 | 69 44 34.76 (0.08) | 69 44 29.87 | 69 45 04.32 | ||||||
| Spectral type | DC | DC: | DC | DC | |||||||
| Effective temperature | [K] | 4960.0 (25) | 4960.0 | 4638.0 | 5028.0 (45) | ||||||
| log(g) | [cgs] | 7.89 (0.01) | 7.88 | 7.66 | 7.94 (0.02) | ||||||
| Mass | [M☉] | 0.513 (0.01) | 0.512 | 0.382 | 0.542 (0.02) | ||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 4.6400 | 4.5140 | 3.4870 | |||||||
| 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] | 21.83 (0.1) | 21.83 (0.1) | 21.88 | 21.88 (0.1) | 21.83 (0.1) | |||||
| Distance | [pc] | 45.81 (0.3) | 45.80 (0.3) | 45.70 | 45.70 (0.2) | 45.80 (0.3) | |||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -227.5033803 (0.2) | -227.33 (0.08) | -227.5033803 | |||||||
| Proper motion (declination) | [mas/yr] | -315.2736925 (0.2) | -315.271 (0.1) | -315.2736925 | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | yes | ||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | |||||||||||
| g magnitude | |||||||||||
| r magnitude | |||||||||||
| i magnitude | |||||||||||
| z magnitude | |||||||||||
| G magnitude | 18.08 | 18.06 | 18.06 (0.003) | 18.08 | |||||||
| BP magnitude | 18.56 | 18.56 | |||||||||
| RP magnitude | 17.43 | 17.43 | |||||||||
| Pan g magnitude | 18.64 (0.01) | 18.64 (0.008) | |||||||||
| Pan r magnitude | 18.02 (0.006) | 18.02 (0.006) | |||||||||
| Pan i magnitude | 17.78 (0.006) | 17.78 (0.006) | |||||||||
| Pan z magnitude | 17.68 (0.006) | 17.68 (0.007) | |||||||||
| Pan y magnitude | 17.62 (0.01) | 17.62 (0.02) | |||||||||
| E(B-V) | 0.001 | ||||||||||
* 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.