Observation by Duncan Hale-Sutton: Mizar and Alcor

Uploaded by

Duncan Hale-Sutton

Observer

Duncan Hale-Sutton

Observed

2024 May 01 - 21:39

Uploaded

2024 May 03 - 17:54

Objects

Mizar
Alcor

Equipment

Orion OMC-140 Maksutov Cassegrain
Nikon D90 at prime focus
HEQ-5 mount

Exposure

1s at ISO 1600, f/14.3

Location

Neatishead, Norfolk

Target name

Mizar and Alcor

Title

Mizar and Alcor

About this image

Having carefully set up my scope, I was rewarded with very hazy skies, so I decided to take a number of pictures of double stars that were in my SkyScan controller database. With the D90 at prime focus it gives about 0.59 arc seconds per pixel. This image is a crop of the original full frame. I have tried to orientate it as well as I could with north at the top and west to the right. Mizar A is magnitude 2.23, B is 3.88 and Sidus Ludoviciana 7.58. The separation and position angle of this double is 14.5 arcseconds and 153 degrees respectively.

Files associated with this observation

Mizar Alcor.jpg (126.2 kB)

Like this image

Jeremy Shears, Bob Trevan

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