WD 1239+454
All names: PSO J123914.025+452508.229, Gaia DR2 1541323334283923200, GSC2U J123915.4+452520, USNO-B1.0 1354-00236787, Gaia DR2 1541286711100812160, PSO J123913.860+452506.791, WD 1239+454, WD 1236+457, NLTT 31426, LSPM J1239+4525, LHS 2596, 2MASS J12391479+4525150, SDSS J123914.50+452512.4, 12392+4525, LP 171-40, WDJ123914.70+452514.14
| Parameter | Unit | Blouin et al. 2019 | MWDD H | Pan-STARRS DR1 | Gaia DR2 | Limoges et al. 2015 | SDSS DR12 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 39 13.75 (0.03) | 12 39 14.50 | 12 39 14.50 | 12 39 13.75 | 12 39 17.47 | 12 39 14.50 | |||||
| Declination | 45 25 05.82 (0.03) | 45 25 12.43 | 45 25 12.45 | 45 25 05.82 | 45 25 43.68 | 45 25 12.45 | |||||
| Spectral type | DA | DA | DA | DA | DC8 | DA | |||||
| Effective temperature | [K] | 6355.0 (40) | 6347.0 | 6810.0 (118) | 6344.0 (23) | ||||||
| log(g) | [cgs] | 8.30 (0.01) | 8.29 | 8.66 (0.1) | 8.12 (0.05) | ||||||
| Mass | [M☉] | 0.784 (0.009) | 0.777 | 1.02 (0.09) | 0.66 (0.03) | ||||||
| log(Luminosity) | [L☉] | -3.93 | |||||||||
| Cooling age | [Gyr] | 3.7500 (0.1) | 3.7050 | ||||||||
| 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] | 37.21 (0.07) | 37.21 (0.07) | 37.21 (0.07) | |||||||
| Distance | [pc] | 26.88 (0.05) | 26.88 (0.05) | 23.50 (0.9) | 26.88 (0.05) | ||||||
| Composition | H | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -646.7768353 (0.06) | -659.0 | -646.7768353 | |||||||
| Proper motion (declination) | [mas/yr] | -537.0662068 (0.08) | -543.0 | -537.0662068 | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 16.80 | ||||||||||
| V magnitude | 16.50 | ||||||||||
| R magnitude | 16.30 | ||||||||||
| I magnitude | 16.10 | ||||||||||
| J magnitude | 15.60 (0.06) | 15.60 | |||||||||
| H magnitude | 15.20 (0.1) | 15.20 | |||||||||
| K magnitude | 15.73 | ||||||||||
| u magnitude | 17.36 (0.009) | 17.36 | 17.36 (0.009) | 17.35 | 17.36 (0.01) | ||||||
| g magnitude | 16.66 (0.004) | 16.67 | 16.66 (0.004) | 16.65 | 16.67 (0.02) | ||||||
| r magnitude | 16.38 (0.005) | 16.38 | 16.38 (0.005) | 16.37 | 16.38 (0.01) | ||||||
| i magnitude | 16.29 (0.005) | 16.30 | 16.29 (0.005) | 16.28 | 16.30 (0.01) | ||||||
| z magnitude | 16.31 (0.007) | 16.31 | 16.31 (0.007) | 16.29 | 16.31 (0.01) | ||||||
| G magnitude | 16.38 | 16.38 | |||||||||
| BP magnitude | 16.60 | 16.60 | |||||||||
| RP magnitude | 15.95 | 15.95 | |||||||||
| Pan g magnitude | 16.63 (0.002) | 16.64 (0.003) | |||||||||
| Pan r magnitude | 16.37 (0.003) | 16.38 (0.005) | |||||||||
| Pan i magnitude | 16.30 (0.003) | 16.30 (0.003) | |||||||||
| Pan z magnitude | 16.31 (0.002) | 16.29 (0.009) | |||||||||
| Pan y magnitude | 16.31 (0.004) | 16.32 (0.008) | |||||||||
* Constant surface field
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