Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Great Nebula in Andromeda  ·  M 31  ·  NGC 224
Variable 1 in M31, dcnikon
Variable 1 in M31
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Variable 1 in M31

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Description

This is an image of the famous cepheid variable V1 discovered in M31 by Edwin Hubble, see here for more images with much more famous and bigger telescopes.

https://www.spacetelescope.org/announcements/ann1110/

This image was made at Le Fun Camping site in Fitou, France.

I used a 200mm F4 newton with aplanatic coma corrector and Artemis 4021 camera. about 10x2 minute exposures were made.

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Variable 1 in M31, dcnikon