NLTT 31292
All names: SDSS J123700.74+181457.5, LSPM J1237+1814, USNO-B1.0 1082-00232199, WD 1234+185, SDSS J123700.66+181456.5, NLTT 31292, PM J12370+1814, PSO J123700.661+181456.489, Gaia DR2 3947604806549970560, 12370+1814, WDJ123700.81+181458.29
| Parameter | Unit | MWDD H | MWDD HE | Pan-STARRS DR1 | Gaia DR2 | Limoges et al. 2015 | SDSS DR12 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 37 00.63 (0.1) | 12 37 00.75 | 12 37 00.77 | 12 37 00.63 | 12 37 00.31 | |||||
| Declination | 18 14 56.17 (0.07) | 18 14 57.50 | 18 14 59.15 | 18 14 56.17 | 18 15 11.88 | |||||
| Spectral type | DC | DC | DC | DC | DC | |||||
| Effective temperature | [K] | 10023.0 | 9959.0 | 9860.0 (256) | ||||||
| log(g) | [cgs] | 8.22 | 8.15 | 8.00 (0) | ||||||
| Mass | [M☉] | 0.7390000000000001 | 0.675 | 0.58 (0.1) | ||||||
| log(Luminosity) | [L☉] | -2.87 | ||||||||
| Cooling age | [Gyr] | 0.8340 | 0.7933 | |||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| log(N/He) | ||||||||||
| log(O/He) | ||||||||||
| log(Na/He) | ||||||||||
| log(Mg/He) | ||||||||||
| log(Al/He) | ||||||||||
| log(Si/He) | ||||||||||
| log(P/He) | ||||||||||
| log(S/He) | ||||||||||
| log(Cl/He) | ||||||||||
| log(Sc/He) | ||||||||||
| log(Ti/He) | ||||||||||
| log(V/He) | ||||||||||
| log(Cr/He) | ||||||||||
| log(Mn/He) | ||||||||||
| log(Fe/He) | ||||||||||
| log(Co/He) | ||||||||||
| log(Ni/He) | ||||||||||
| log(Cu/He) | ||||||||||
| log(Zn/He) | ||||||||||
| log(Ga/He) | ||||||||||
| log(Ge/He) | ||||||||||
| log(Sr/He) | ||||||||||
| Parallax | [mas] | 13.67 (0.1) | 13.67 (0.1) | |||||||
| Distance | [pc] | 73.13 (0.6) | 80.00 (9) | 73.13 (0.6) | ||||||
| Composition | He | |||||||||
| Proper motion (right ascension) | [mas/yr] | -171.989355852 (0.3) | -181.0 | -171.989355852 | ||||||
| Proper motion (declination) | [mas/yr] | -136.717895908 (0.2) | -139.0 | -136.717895908 | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 17.80 | |||||||||
| V magnitude | ||||||||||
| R magnitude | 16.80 | |||||||||
| I magnitude | 16.60 | |||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 16.96 | 16.98 (0.008) | 16.98 | 16.98 (0.008) | ||||||
| g magnitude | 16.79 | 16.79 (0.005) | 16.79 | 16.79 (0.005) | ||||||
| r magnitude | 16.88 | 16.88 (0.005) | 16.89 | 16.89 (0.005) | ||||||
| i magnitude | 17.03 | 17.03 (0.006) | 17.03 | 17.03 (0.006) | ||||||
| z magnitude | 17.17 | 17.17 (0.01) | 17.17 | 17.17 (0.01) | ||||||
| G magnitude | 16.83 | 16.83 | ||||||||
| BP magnitude | 16.84 | 16.84 | ||||||||
| RP magnitude | 16.73 | 16.73 | ||||||||
| Pan g magnitude | 16.84 (0.006) | |||||||||
| Pan r magnitude | 16.89 (0.004) | |||||||||
| Pan i magnitude | 17.06 (0.006) | |||||||||
| Pan z magnitude | 17.20 (0.004) | |||||||||
| Pan y magnitude | 17.34 (0.01) | |||||||||
* Constant surface field
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