Friday, 21 August 2026

The Universe is big, very big!

 


"The above is an annotated version of an image captured and created with the JPO's Seestar S30. 

The Seestar S30 has a field of vision of only  0.0064% of the entire celestial sphere or sky. A tiny amount in the scheme of things. 

In addition the Seestar, having an aperture of only 30mm has limited light grasp, so can only image objects down to apparent magnitude 12 to 15, dependant upon light pollution and length of exposure.

Both the above limitations, inherent to the Seestar S30, act to minimise the number of stars imaged.

The above Seestar image is estimated by AI to contain somewhere between 300 and 400 billion stars. The overwhelming majority of these stars are held within the galaxies identified in the above image. The spiral galaxy NGC 7479, the Propeller Galaxy, contains 100 to 200 billion stars alone.

The Universe is a very very big place indeed". - Kurt Thrust current Director of the Jodrell Plank Observatory.

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