WD 1223+188
All names: USNO-B1.0 1086-00204965, WDJ122619.77+183634.46, NLTT 30738, Gaia DR3 3947104533054775168, Gaia DR2 3947104533054775168, PM J12263+1836, SDSS J122619.71+183634.3, J1226+1836, SDSS J122619.72+183634.3, PSO J186.5817+18.6094, 12263+1836, WD 1223+188, LSPM J1226+1836, GALEX J122619.7+183634, 2MASS J12261980+1836346, LP 435-109, Gaia EDR3 3947104533054775168, TIC 135150732
| 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 | 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) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 26 19.60 (0.04) | 12 26 19.71 | 12 26 19.60 (0.06) | 12 26 19.60 (0.06) | 12 26 19.60 | 12 26 19.77 (0.04) | 12 26 19.60 | 12 26 19.27 | ||||||||||||
| Declination | 18 36 34.10 (0.04) | 18 36 34.34 | 18 36 34.11 (0.06) | 18 36 34.11 (0.06) | 18 36 34.10 | 18 36 34.45 (0.04) | 18 36 34.11 | 18 36 29.88 | ||||||||||||
| Spectral type | DAHe | DAHe | DC | DC | DC | DC | DC | DC | DC | DC | DC | DC | DC8.4 | DC | ||||||
| Effective temperature | [K] | 8148.0 (42) | 7972.0 (104) | 7392.0 (27) | 7402.1 (64) | 7465.0 (225) | 8000.0 | 7688.0 | 7600.0 (110) | 6000.0 (700) | 7319.0 (66) | |||||||||
| log(g) | [cgs] | 8.38 (0.007) | 8.33 (0.03) | 8.10 (0.007) | 8.12 (0.02) | 8.19 (0.07) | 8.35 | 8.26 | 8.00 (0) | 8.00 | 8.10 (0.01) | |||||||||
| Mass | [M☉] | 0.839 (0.007) | 0.805 (0.02) | 0.636 (0.006) | 0.697 (0.05) | 0.82 | 0.741 | 0.58 (0.1) | 0.57 | 0.637 (0.01) | ||||||||||
| log(Luminosity) | [L☉] | -3.32 | ||||||||||||||||||
| Cooling age | [Gyr] | 1.6200 | 1.8250 (0.2) | 2.0700 | 1.9230 | |||||||||||||||
| log(H/He) | -3.6 | |||||||||||||||||||
| 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] | 27.88 (0.05) | 27.88 (0.05) | 27.95 (0.09) | 27.95 (0.09) | 27.95 (0.09) | 27.95 (0.09) | 27.88 | 27.88 (0.05) | 27.95 (0.09) | ||||||||||
| Distance | [pc] | 35.87 (0.07) | 35.87 (0.06) | 35.78 (0.1) | 35.78 (0.1) | 35.78 (0.1) | 35.78 (0.1) | 40.40 (6) | 26.00 | 35.87 | 35.87 (0.07) | 35.78 (0.1) | ||||||||
| Composition | H | He | He | He | He | |||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -157.2203395 (0.05) | -156.9776428 (0.1) | -157.22 (0.06) | -156.978 | |||||||||||||||
| Proper motion (declination) | [mas/yr] | -21.88449373 (0.04) | -22.14399151 (0.1) | -21.884 (0.04) | -22.144 | |||||||||||||||
| Variability | ||||||||||||||||||||
| Magnetic | ||||||||||||||||||||
| Bd | [MG] | |||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||
| Binarity | ||||||||||||||||||||
| B magnitude | 16.90 | |||||||||||||||||||
| V magnitude | ||||||||||||||||||||
| R magnitude | 16.10 | |||||||||||||||||||
| I magnitude | ||||||||||||||||||||
| J magnitude | 15.84 (0.009) | 15.83 (0.07) | 15.83 (0.07) | |||||||||||||||||
| H magnitude | 15.46 (0.1) | 15.46 (0.1) | 15.46 (0.1) | |||||||||||||||||
| K magnitude | 15.68 (0.2) | 15.68 (0.2) | 15.68 (0.2) | |||||||||||||||||
| u magnitude | 16.74 (0.008) | 16.76 (0.008) | 16.74 (0.008) | 16.74 (0.008) | ||||||||||||||||
| g magnitude | 16.34 (0.004) | 16.36 (0.005) | 16.34 (0.004) | |||||||||||||||||
| r magnitude | 16.27 (0.004) | 16.29 (0.001) | 16.27 (0.004) | |||||||||||||||||
| i magnitude | 16.30 (0.004) | 16.33 (0.003) | 16.30 (0.004) | |||||||||||||||||
| z magnitude | 16.40 (0.008) | 16.40 (0.004) | 16.40 (0.008) | |||||||||||||||||
| G magnitude | 16.23 (0.004) | 16.25 | 16.25 | 16.23 | 16.23 (0.003) | 16.25 | ||||||||||||||
| BP magnitude | 16.36 (0.004) | 16.35 | 16.35 | |||||||||||||||||
| RP magnitude | 15.99 (0.005) | 15.99 | 15.99 | |||||||||||||||||
| Pan g magnitude | 16.36 (0.005) | 16.36 (0.005) | 16.36 (0.005) | |||||||||||||||||
| Pan r magnitude | 16.29 (0.001) | 16.29 (0.001) | 16.29 (0.001) | |||||||||||||||||
| Pan i magnitude | 16.33 (0.003) | 16.33 (0.003) | 16.33 (0.003) | |||||||||||||||||
| Pan z magnitude | 16.40 (0.004) | 16.40 (0.004) | 16.40 (0.004) | |||||||||||||||||
| Pan y magnitude | 16.50 (0.005) | 16.50 (0.006) | 16.50 (0.006) | |||||||||||||||||
| E(B-V) | 0.001 | |||||||||||||||||||
* Constant surface field
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