Kepler-90 Planetary System VS. Solar system and Flash spectrum of the sun

Updated: Oct 24, 2019

Yes, other stars have planetary systems like our own and one such system is the well known Kepler-90 cataloged by Kepler satellite. Finally the 8th planet has now been discovered giving Kepler-90 the same number of known planets as our Solar system. Kepler-90 lies about 2500 light years away and at the magnitude 14X is visible with a medium sized telescope with the direction towards the constellation of the Dragon (Draco).

Similarities : G-type star comparable to our sun, rocky planets comparable to our earth and large planets comparable in size to Jupiter and Saturn. Differences : All the known Kepler-90 planets orbit relatively close in (closer than earths orbit around the sun) making them possibly too hot to harbor life. Although further observations may help us discover cooler planets further out. Exoplanet-finding missions for launch in the next decade include TESS, JWST, WFIRST and PLATO.

Image Credit : NASA

🔥Flash spectrum of the sun🔥 The strongest cosmopheric emissions are due to Hydrogen atoms. This comsospheric of the sun has three exposures with telephoto lens and diffraction grating aligned in the frame. At the left you see the suns diamond ring-like appearance at the beginning and end of the lunar disk at max eclipse.

A diffraction grating into the spectrum of colours towards the right is the suns photospheric spectrum, which corresponds to the suns overwhelming disk. Red hydrogen alpha emissions is at the far right with blue and purple hydrogen series emissions to the left and brightest yellow emissions due to Helium atoms (an element only first discovered in the flash spectrum of the sun). However, individual eclipse images also appear at each wavelength of light emitted by atoms along the thin chromosphere. Image Credit : Yuijng Qin (University of Arizona)

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