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Leo Quadruplet

Leo Quadruplet

Leo Triplet is a group of well-known galaxy and a prime target in the spring. It is composed of the galaxies M66, M65 and NGC 3628 visible on the left side of the image. The fields of the FSQ-106ED with its focal reducer 0.73x allow me to put a fourth galaxy, NGC3593.

In addition to these four prominent islands in the universe, the field contains an incredible amount of small galaxies, 16 asteroids and two dozen of quasar. The most distant has a redshit 3.86 which places it at 12.2 billion light-years. For those who do not realize, beyond 13.7 billion light years, the light has not had enough time to reach us since the birth of the universe.


42 exposures of 5 minutes.
Camera : Canon EOS 1000D unfiltered
Telescope : Takahashi FSQ-106ED refractor with 0.73 reducer.
Mount : Takahashi EM-200 USD3.
Guiding : Orion Starshoot Autoguider on a William Optic Zenithstar 66SD refractor.
Outside temperature : 5°C to 3°C
Sensor temperature : 11°C
Humidity : 75%
SQM : 21,8
Software : auto-guiding with PHD Guiding, acquisition with BackyardEOS, processing PixInsight.
Location : L’Epine, Baronnies Provençale, France.

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