WD 2227+232
All names: NLTT 53996, 2MASS J22293394+2327427, TIC 411344988, LP 400-6, USNO-B1.0 1134-00549188, SDSS J222934.04+232741.2, SDSS J222934.03+232741.1, LSPM J2229+2327, Gaia DR2 1875613386395668864, Gaia EDR3 1875613386395668864, J2229+2327, Gaia DR3 1875613386395668864, WDJ222933.96+232742.24, WD 2227+232, PSO J337.3922+23.4610
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | Kilic et al. 2020 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | Gaia DR2 | Stilism | Kawka et Vennes 2006 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 29 34.22 (0.08) | 22 29 34.21 (0.1) | 22 29 34.21 (0.1) | 22 29 34.22 | 22 29 33.96 (0.08) | 22 29 34.21 | 22 29 33.55 | ||||||||||
| Declination | 23 27 38.65 (0.09) | 23 27 38.76 (0.1) | 23 27 38.76 (0.1) | 23 27 38.65 | 23 27 42.24 (0.09) | 23 27 38.76 | 23 27 41.04 | ||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DA: | DA | DA10.1 | ||||||
| Effective temperature | [K] | 5013.0 (20) | 5064.0 (71) | 5052.0 (19) | 5013.0 (20) | 4927.3 (38) | 5035.0 (25) | 5060.0 | 5000.0 (500) | 5099.0 (43) | |||||||
| log(g) | [cgs] | 8.11 (0.01) | 8.13 (0.05) | 8.14 (0.01) | 8.11 (0.01) | 8.05 (0.04) | 8.12 (0.02) | 8.14 | 7.00 | 8.16 (0.02) | |||||||
| Mass | [M☉] | 0.648 (0.009) | 0.659 (0.04) | 0.672 (0.01) | 0.647 (0.01) | 0.658 (0.01) | 0.666 | 0.18 | 0.683 (0.02) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||||||||
| Cooling age | [Gyr] | 7.4000 | 6.8590 (0.2) | 6.8500 | |||||||||||||
| 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] | 27.37 (0.1) | 27.37 (0.1) | 27.36 (0.2) | 27.36 (0.2) | 27.36 (0.2) | 27.36 (0.2) | 27.37 | 27.37 (0.1) | 27.36 (0.2) | |||||||
| Distance | [pc] | 36.54 (0.2) | 36.54 (0.2) | 36.55 (0.3) | 36.55 (0.3) | 36.55 (0.3) | 36.55 (0.3) | 64.00 | 36.54 | 36.54 (0.2) | 36.55 (0.3) | ||||||
| Composition | H | H | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 223.8516236 (0.1) | 224.441046 (0.6) | 223.852 (0.1) | 224.441046 | ||||||||||||
| Proper motion (declination) | [mas/yr] | -224.2643293 (0.1) | -224.4652872 (0.4) | -224.264 (0.1) | -224.4652872 | ||||||||||||
| Variability | |||||||||||||||||
| Magnetic | |||||||||||||||||
| Bd | [MG] | ||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | 20.80 | ||||||||||||||||
| V magnitude | |||||||||||||||||
| R magnitude | 17.20 | ||||||||||||||||
| I magnitude | |||||||||||||||||
| J magnitude | 16.60 (0.01) | 16.36 (0.1) | 16.36 (0.1) | ||||||||||||||
| H magnitude | 16.03 (0.1) | 16.03 (0.1) | 16.03 (0.1) | ||||||||||||||
| K magnitude | |||||||||||||||||
| u magnitude | 20.11 (0.05) | 20.12 (0.06) | 20.12 (0.06) | ||||||||||||||
| g magnitude | 18.36 (0.007) | 18.49 (0.007) | |||||||||||||||
| r magnitude | 17.79 (0.005) | 17.79 (0.006) | |||||||||||||||
| i magnitude | 17.53 (0.004) | 17.54 (0.006) | |||||||||||||||
| z magnitude | 17.44 (0.005) | 17.44 (0.01) | |||||||||||||||
| G magnitude | 17.81 (0.01) | 17.83 | 17.83 | 17.81 | 17.81 (0.003) | 17.83 | |||||||||||
| BP magnitude | 18.28 (0.01) | 18.32 | 18.32 | ||||||||||||||
| RP magnitude | 17.19 (0.009) | 17.19 | 17.19 | ||||||||||||||
| Pan g magnitude | 18.36 (0.008) | 18.36 (0.007) | 18.36 (0.007) | ||||||||||||||
| Pan r magnitude | 17.79 (0.006) | 17.79 (0.005) | 17.79 (0.005) | ||||||||||||||
| Pan i magnitude | 17.53 (0.004) | 17.53 (0.004) | 17.53 (0.004) | ||||||||||||||
| Pan z magnitude | 17.44 (0.005) | 17.44 (0.005) | 17.44 (0.005) | ||||||||||||||
| Pan y magnitude | 17.42 (0.007) | 17.42 (0.005) | 17.42 (0.005) | ||||||||||||||
| E(B-V) | 0.002 | ||||||||||||||||
* Constant surface field
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