All names: PM J08091+3527, SDSS J080911.19+352756.9, CBS 67, Gaia DR3 905923368548465152, SDSS J080911.20+352757.0, WIRED J080911.20+352756.9, GALEX J080911.1+352757, WD 0805+356, SDSS J080911.19+352756.8, Gaia EDR3 905923368548465152, 2MASS J08091121+3527573, 08091+3527, Gaia DR2 905923368548465152, SDSS J080911.20+352756.9, TIC 165821201, J0809+3527, WDJ080911.21+352757.08, SDSS
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Holberg et al. 2016 | Limoges et al. 2015 | Sion et al. 2014 | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 09 11.14 (0.02) | 08 09 11.20 | 08 09 11.14 (0.04) | 08 09 11.14 (0.04) | 08 09 11.04 | 08 09 11.14 | 08 09 11.21 (0.02) | 08 09 11.14 | 08 09 11.20 | 08 09 11.26 | 08 09 11.20 | |||||||||||
| Declination | 35 27 55.71 (0.02) | 35 27 56.90 | 35 27 55.75 (0.03) | 35 27 55.75 (0.03) | 35 27 54.00 | 35 27 55.71 | 35 27 57.08 (0.02) | 35 27 55.75 | 35 27 56.98 | 35 27 52.56 | 35 27 56.98 | |||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA7.3 | DA | DA | DA | DA | DA_auto | DA | DA | DA | ||||||||
| Effective temperature | [K] | 8771.0 (76) | 8867.0 (27) | 8708.6 (36) | 8618.0 | 8448.0 | 9233.0 (40) | 8950.0 (128) | 6900.0 | 9150.0 (20) | 8680.0 (42) | 9032.0 (11) | 8947.0 (16) | |||||||||
| log(g) | [cgs] | 7.80 (0.02) | 7.83 (0.005) | 7.79 (0.01) | 7.77 | 7.68 | 8.51 (0.05) | 8.37 (0.05) | 8.65 (0.02) | 7.78 (0.009) | 8.69 (0.02) | 8.57 (0.02) | ||||||||||
| Mass | [M☉] | 0.488 (0.01) | 0.502 (0.004) | 0.469 | 0.409 | 0.93 (0.03) | 0.83 (0.03) | 1.01 (0.01) | 0.477 (0.006) | 0.948 (0.01) | ||||||||||||
| log(Luminosity) | [L☉] | -3.25 | ||||||||||||||||||||
| Cooling age | [Gyr] | 0.7000 | 0.6646 | 0.6569 | 1.9000 | 2.4547 | ||||||||||||||||
| 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] | 28.42 (0.03) | 28.42 (0.03) | 28.39 (0.05) | 28.39 (0.05) | 28.39 (0.05) | 28.42 | 28.42 (0.03) | 28.39 (0.05) | |||||||||||||
| Distance | [pc] | 35.19 (0.04) | 35.19 (0.04) | 35.22 (0.06) | 35.23 (0.06) | 35.23 (0.06) | 23.12 (0.4) | 24.50 (0.8) | 21.10 | 35.19 | 35.19 (0.04) | 35.23 (0.06) | ||||||||||
| Composition | H | H | H | H | H | |||||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -54.31203549 (0.03) | -54.31064664 (0.08) | -54.312 (0.03) | -54.311 | -53.5 | ||||||||||||||||
| Proper motion (declination) | [mas/yr] | -85.58813624 (0.02) | -85.5873599 (0.06) | -85.588 (0.02) | -85.587 | -85.5 | ||||||||||||||||
| Variability | ||||||||||||||||||||||
| Magnetic | ||||||||||||||||||||||
| Bd | [MG] | |||||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||||
| Binarity | ||||||||||||||||||||||
| B magnitude | 15.00 | |||||||||||||||||||||
| V magnitude | 15.14 | |||||||||||||||||||||
| R magnitude | ||||||||||||||||||||||
| I magnitude | ||||||||||||||||||||||
| J magnitude | 14.81 (0.005) | 14.88 (0.04) | ||||||||||||||||||||
| H magnitude | 14.78 (0.07) | 14.78 (0.07) | ||||||||||||||||||||
| K magnitude | 14.69 (0.1) | 14.69 (0.1) | ||||||||||||||||||||
| u magnitude | 15.54 (0.005) | 15.54 (0.005) | 15.54 (0.005) | 15.54 (0.005) | 15.56 (0.02) | 15.56 | 15.56 (0.02) | |||||||||||||||
| g magnitude | 15.14 (0.004) | 15.14 (0.004) | 15.14 (0.004) | 15.14 (0.02) | 15.14 | 15.15 (0.02) | ||||||||||||||||
| r magnitude | 15.14 (0.004) | 15.14 (0.004) | 15.14 (0.004) | 15.14 (0.01) | 15.15 (0.01) | |||||||||||||||||
| i magnitude | 15.21 (0.005) | 15.21 (0.005) | 15.21 (0.005) | 15.20 (0.02) | 15.20 (0.02) | |||||||||||||||||
| z magnitude | 15.34 (0.006) | 15.34 (0.006) | 15.34 (0.006) | 15.33 (0.02) | 15.34 (0.02) | |||||||||||||||||
| G magnitude | 15.08 (0.002) | 15.10 | 15.10 | 15.08 | 15.08 (0.003) | 15.10 | ||||||||||||||||
| BP magnitude | 15.18 (0.002) | 15.17 | 15.17 | |||||||||||||||||||
| RP magnitude | 14.90 (0.001) | 14.91 | 14.91 | |||||||||||||||||||
| Pan g magnitude | 15.16 (0.004) | 15.16 (0.004) | ||||||||||||||||||||
| Pan r magnitude | 15.16 (0.001) | 15.16 (0.002) | ||||||||||||||||||||
| Pan i magnitude | 15.23 (0.002) | 15.23 (0.002) | ||||||||||||||||||||
| Pan z magnitude | 15.35 (0.002) | 15.35 (0.002) | ||||||||||||||||||||
| Pan y magnitude | 15.42 (0.006) | 15.42 (0.007) | ||||||||||||||||||||
| 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.