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M51 - First Time Successfully Autoguiding

Technical card

Imaging telescope or lens: Orion ED80T CF

Imaging camera: Canon EOS Rebel T6

Mount: Celestron AVX

Guiding telescope or lens: Orion Mini 50mm Guide Scope

Guiding camera: ZWO ASI224MC

Focal reducer: Orion Field Flattener for Short Refractors

Resolution: 766x766

Dates: April 17, 2017

Frames: 10x180" ISO800

Integration: 0.5 hours

Darks: ~9

Flats: ~30

Bias: ~30

Avg. Moon age: 19.96 days

Avg. Moon phase: 72.47%

Bortle Dark-Sky Scale: 4.00

Astrometry.net job: 1543876

RA center: 202.482 degrees

DEC center: 47.194 degrees

Pixel scale: 2.499 arcsec/pixel

Orientation: 90.065 degrees

Field radius: 0.376 degrees

Description

My second time out with the new small triplet, and my first successful autoguide. I managed 3-minute exposures, which is pretty exciting when your previous best was 45 seconds!

I was hampered by clouds, and so I only had time to take 12 subs, of which 10 were useful. I'm not happy with the background noise, which I think will improve quite a bit when I acquire more lights. I will try for 5-minute exposures next time.

Hope you enjoy.

Comments

Author

Damien Cannane
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M51 - First Time Successfully Autoguiding, Damien Cannane

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