109 Piscium b is an extrasolar planet with a long period discovered in orbit around 109 Piscium. It was discovered on November 14, 1999, as an extrasolar planet. It has a mass at least 6.38 times that of Jupiter and is most likely a gas giant. It has at least 6.38 times the mass of Jupiter and is almost certainly a gas giant. Its orbital eccentricity is greater than Jupiter’s, as is typical for long-period planets discovered around other stars. Every 1076 earth days, it orbits its host star, 109 Piscium.
The discoverers estimate its effective temperature from solar heating to be 264 K, but it could be 10 to 20 K warmer due to internal heating. The planet’s effective temperature is estimated to be 264 K (-9.15 °C, 15.53 °F), but it could be 10 or 20 K higher due to internal heating.
According to preliminary astrometric measurements, the orbital inclination is 170.3°, resulting in an object mass 38 times that of Jupiter, classifying it as a brown dwarf. However, further investigation reveals that the precision of the measurements used to derive the astrometric orbit is insufficient to constrain the parameters, so the true inclination and mass remain unknown.
A more plausible explanation is that this planet has the same inclination as to its star, which is 69+2126°. The mass and radius are calculated in relation to Jupiter. 6.837 Jupiters denotes that it has 6.837 times the mass of Jupiter and is equivalent to Mass. Its radius has been calculated to be 12.64 times that of the Earth. All of the figures have a variation that I have not included here for the time being; if you need them, you can find them at the source site.
The planet’s orbital period, or year, is 1075.69 days, or 2.95 Earth years. By the time the Earth has completed a full year, it will have completed 0.34 orbits around its star. The semi-major axis is the point in the orbit that is farthest from its star. The Earth revolves around the Sun with a semi-major axis of just over 1 A.U. (1.00000011). 1 A.U. is the average distance between the Earth and the Sun. The planet orbits its star at a closer distance than Jupiter does the Sun.
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