M3

M3 is a globular cluster containing 500,000 stars. It formed around 11.4 billion years ago, making it more than twice as old as planet Earth.

 

* March and April 2021

* Bristol, UK (Bortle 8 )

* Telescope: Askar FRA400 f/5.6 Quintuplet APO Astrograph

* Camera: ZWO ASI 2600MC-PRO

* Mount: Orion Sirius EQ-G

* Guide: William Optics 32mm; ZWO ASI 120MM Mini

* Software: PixInsight, Photoshop, Lightroom

* 300 x 120 seconds

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Total integration time: 10 hours

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By Lee Pullen

Done