All names: WDJ080946.17+292032.24, 08097+2920, SDSS J080946.19+292032.1, PSO J122.4431+29.3419, Gaia DR2 876571935709366272, SDSS J080946.19+292032.0, Gaia DR3 876571935709366272, J0809+2920, WD 0806+294, LSPM J0809+2920, Gaia EDR3 876571935709366272, LP 311-2, GD 262, USNO-B1.0 1193-00158696, SDSS J080946.20+292032.1, 2MASS J08094613+2920323, GEN# +6.10060262, PM J08097+2920, TIC 97252550, NLTT 19019
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Limoges et al. 2015 | Kawka et Vennes 2006 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 09 46.37 (0.04) | 08 09 46.20 | 08 09 46.36 (0.05) | 08 09 46.36 (0.05) | 08 09 46.37 | 08 09 46.17 (0.04) | 08 09 46.36 | 08 09 44.66 | 08 09 46.20 | |||||||||||
| Declination | 29 20 31.06 (0.03) | 29 20 32.19 | 29 20 31.10 (0.03) | 29 20 31.10 (0.03) | 29 20 31.06 | 29 20 32.24 (0.03) | 29 20 31.10 | 29 20 32.28 | 29 20 32.13 | |||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DA | DA7.2 | DA | DA | ||||||||
| Effective temperature | [K] | 7021.0 (60) | 7049.0 (18) | 6994.0 (42) | 7010.0 (50) | 7010.0 | 6748.0 | 6900.0 (99) | 7000.0 (70) | 7161.0 (38) | 6864.0 (14) | |||||||||
| log(g) | [cgs] | 8.08 (0.02) | 8.09 (0.005) | 8.07 (0.02) | 8.08 (0.02) | 8.07 | 7.96 | 8.00 (0.05) | 8.12 (0.1) | 8.12 (0.009) | 7.83 (0.02) | |||||||||
| Mass | [M☉] | 0.641 (0.01) | 0.649 (0.004) | 0.642 (0.01) | 0.637 | 0.549 | 0.59 (0.03) | 0.66 (0.07) | 0.669 (0.008) | 0.503 (0.01) | ||||||||||
| log(Luminosity) | [L☉] | -3.48 | ||||||||||||||||||
| Cooling age | [Gyr] | 1.7800 | 1.6990 (0.06) | 1.6810 | 1.6010 | |||||||||||||||
| 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] | 31.01 (0.04) | 31.01 (0.04) | 30.93 (0.06) | 30.93 (0.06) | 30.93 (0.07) | 30.93 (0.06) | 31.01 | 31.01 (0.04) | 30.93 (0.06) | ||||||||||
| Distance | [pc] | 32.24 (0.04) | 32.25 (0.04) | 32.33 (0.06) | 32.33 (0.07) | 32.33 (0.07) | 32.33 (0.07) | 32.70 (1) | 29.00 | 32.24 | 32.24 (0.04) | 32.33 (0.07) | ||||||||
| Composition | H | H | H | H | ||||||||||||||||
| Proper motion (right ascension) | [mas/yr] | 161.2111205 (0.05) | 160.9953194 (0.1) | 161.211 (0.05) | 160.995 | |||||||||||||||
| Proper motion (declination) | [mas/yr] | -73.86274977 (0.03) | -73.96787364 (0.06) | -73.863 (0.03) | -73.968 | |||||||||||||||
| Variability | ||||||||||||||||||||
| Magnetic | ||||||||||||||||||||
| Bd | [MG] | |||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||
| Binarity | ||||||||||||||||||||
| B magnitude | 17.00 | |||||||||||||||||||
| V magnitude | ||||||||||||||||||||
| R magnitude | 15.80 | |||||||||||||||||||
| I magnitude | ||||||||||||||||||||
| J magnitude | 15.41 (0.006) | 15.41 (0.05) | 15.41 (0.006) | |||||||||||||||||
| H magnitude | 15.24 (0.009) | 15.39 (0.09) | 15.24 (0.009) | |||||||||||||||||
| K magnitude | 15.25 (0.01) | 15.34 (0.1) | 15.25 (0.01) | |||||||||||||||||
| u magnitude | 16.82 (0.007) | 16.84 (0.007) | 16.82 (0.007) | 16.80 (0.007) | 0.53 | 16.81 (0.02) | ||||||||||||||
| g magnitude | 16.27 (0.004) | 16.26 (0.005) | 16.27 (0.003) | 16.22 (0.02) | ||||||||||||||||
| r magnitude | 16.11 (0.004) | 16.10 (0.002) | 16.10 (0.004) | 16.13 (0.02) | ||||||||||||||||
| i magnitude | 16.06 (0.005) | 16.07 (0.002) | 16.05 (0.004) | 16.07 (0.02) | ||||||||||||||||
| z magnitude | 16.08 (0.007) | 16.11 (0.003) | 16.07 (0.007) | 16.09 (0.02) | ||||||||||||||||
| G magnitude | 16.07 (0.003) | 16.09 | 16.09 | 16.07 | 16.07 (0.003) | 16.09 | ||||||||||||||
| BP magnitude | 16.26 (0.003) | 16.24 | 16.24 | |||||||||||||||||
| RP magnitude | 15.74 (0.003) | 15.74 | 15.74 | |||||||||||||||||
| Pan g magnitude | 16.26 (0.004) | 16.26 (0.005) | 16.26 (0.005) | |||||||||||||||||
| Pan r magnitude | 16.10 (0.002) | 16.10 (0.002) | 16.10 (0.002) | |||||||||||||||||
| Pan i magnitude | 16.07 (0.003) | 16.07 (0.002) | 16.07 (0.002) | |||||||||||||||||
| Pan z magnitude | 16.11 (0.003) | 16.11 (0.003) | 16.11 (0.003) | |||||||||||||||||
| Pan y magnitude | 16.15 (0.004) | 16.15 (0.004) | 16.15 (0.004) | |||||||||||||||||
| 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.