WD 1224+321
All names: LP 321-4, WIRED J122724.30+315023.2, SDSS J122724.31+315023.2, WD 1224+321, Gaia DR2 4015547856277853824, 12274+3150, PSO J186.8515+31.8392, NLTT 30781, PM J12273+3150, Pul -3 950235, WDJ122724.28+315024.04, SDSS J122724.31+315023.3, SDSS J122724.30+315023.2, Gaia EDR3 4015547856277853824, Gaia DR3 4015547856277853824, LSPM J1227+3150, USNO-B1.0 1218-00222773, GALEX J122724.3+315022, J1227+3150, 2MASS J12272425+3150242, TIC 82347341, PM J12274+3150
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Kilic et al. 2020 | Blouin et al. 2019 | MWDD H | Gaia DR2 | Stilism | Limoges et al. 2015 | Sayres et al. 2012 | 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 | 12 27 24.37 (0.05) | 12 27 24.30 | 12 27 24.37 (0.07) | 12 27 24.37 (0.07) | 12 27 24.27 | 12 27 24.37 | 12 27 24.28 (0.05) | 12 27 24.37 | 12 27 24.00 | 12 27 24.31 | |||||||||||
| Declination | 31 50 21.05 (0.03) | 31 50 23.22 | 31 50 21.14 (0.04) | 31 50 21.14 (0.04) | 31 50 24.00 | 31 50 21.05 | 31 50 24.04 (0.03) | 31 50 21.14 | 31 50 18.60 | 31 50 23.25 | |||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA6.5 | DA | DA6.5 | DA | DA6.5 | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 6563.0 (20) | 6547.0 (60) | 6523.0 (18) | 6504.6 (41) | 6563.0 (20) | 6440.0 (50) | 6465.0 | 6580.0 (106) | 6530.0 (80) | 6657.0 (37) | 6462.0 (27) | |||||||||
| log(g) | [cgs] | 7.96 (0.006) | 7.95 (0.03) | 7.96 (0.006) | 7.95 (0.02) | 7.97 (0.007) | 7.93 (0.02) | 7.94 | 7.99 (0.1) | 7.99 (0.1) | 8.00 (0.01) | 7.84 (0.06) | |||||||||
| Mass | [M☉] | 0.57 (0.005) | 0.56 (0.02) | 0.563 (0.005) | 0.573 (0.006) | 0.55 (0.01) | 0.552 | 0.58 (0.08) | 0.588 (0.009) | 0.507 (0.03) | |||||||||||
| log(Luminosity) | [L☉] | -3.56 | |||||||||||||||||||
| Cooling age | [Gyr] | 1.7600 | 1.6850 (0.06) | 1.6750 | |||||||||||||||||
| 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] | 25.72 (0.06) | 25.72 (0.06) | 25.82 (0.09) | 25.82 (0.09) | 25.82 (0.09) | 25.82 (0.09) | 25.72 | 25.72 (0.06) | 25.82 (0.09) | |||||||||||
| Distance | [pc] | 38.88 (0.1) | 38.88 (0.09) | 38.73 (0.1) | 38.73 (0.1) | 38.73 (0.1) | 38.73 (0.1) | 37.90 (0.8) | 38.70 | 38.88 | 38.88 (0.1) | 38.73 (0.1) | |||||||||
| Composition | H | H | H | H | H | H | H | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | 76.75255878 (0.05) | 76.81693113 (0.1) | 76.753 (0.06) | 76.817 | ||||||||||||||||
| Proper motion (declination) | [mas/yr] | -186.9079328 (0.05) | -186.9521306 (0.08) | -186.908 (0.05) | -186.952 | ||||||||||||||||
| Variability | |||||||||||||||||||||
| Magnetic | |||||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||||
| Binarity | |||||||||||||||||||||
| B magnitude | 16.50 | ||||||||||||||||||||
| V magnitude | |||||||||||||||||||||
| R magnitude | 16.30 | ||||||||||||||||||||
| I magnitude | |||||||||||||||||||||
| J magnitude | 15.77 (0.01) | 15.89 (0.09) | 15.89 | 15.89 (0.09) | 15.89 (0.09) | ||||||||||||||||
| H magnitude | 15.50 (0.1) | 15.50 (0.1) | 15.50 | 15.50 (0.1) | 15.50 (0.1) | ||||||||||||||||
| K magnitude | 15.49 (0.2) | 15.49 (0.2) | 15.49 | 15.49 (0.2) | 15.49 (0.2) | ||||||||||||||||
| u magnitude | 17.49 (0.01) | 17.49 (0.01) | 17.47 | 17.49 (0.01) | 17.49 (0.01) | 17.49 (0.01) | 17.47 (0.01) | ||||||||||||||
| g magnitude | 16.84 (0.004) | 16.82 | 16.84 (0.004) | 16.83 (0.004) | 16.84 (0.004) | 16.86 (0.02) | |||||||||||||||
| r magnitude | 16.58 (0.004) | 16.56 | (0.004) | 16.59 (0.004) | 16.58 (0.004) | 16.59 (0.01) | |||||||||||||||
| i magnitude | 16.51 (0.004) | 16.49 | 16.50 (0.004) | 16.51 (0.002) | 16.51 (0.004) | 16.49 (0.01) | |||||||||||||||
| z magnitude | 16.53 (0.008) | 16.51 | 16.52 (0.009) | 16.53 (0.004) | 16.53 (0.008) | 16.52 (0.02) | |||||||||||||||
| G magnitude | 16.57 (0.005) | 16.58 | 16.58 | 16.57 | 16.57 (0.003) | 16.58 | |||||||||||||||
| BP magnitude | 16.80 (0.005) | 16.80 | 16.80 | ||||||||||||||||||
| RP magnitude | 16.18 (0.004) | 16.19 | 16.19 | ||||||||||||||||||
| Pan g magnitude | 16.83 (0.005) | 16.83 (0.004) | 16.83 (0.004) | ||||||||||||||||||
| Pan r magnitude | 16.59 (0.004) | 16.59 (0.003) | 16.59 (0.003) | ||||||||||||||||||
| Pan i magnitude | 16.51 (0.002) | 16.51 (0.002) | 16.52 (0.002) | ||||||||||||||||||
| Pan z magnitude | 16.53 (0.006) | 16.53 (0.004) | 16.53 (0.004) | ||||||||||||||||||
| Pan y magnitude | 16.55 (0.006) | 16.55 (0.005) | 16.55 (0.005) | ||||||||||||||||||
| E(B-V) | 0.001 | ||||||||||||||||||||
* Constant surface field
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