Observation by Michael E. Marotta: Zuben el Genubi (Alpha Librae)

Uploaded by

Michael E. Marotta

Observer

Michael E. Marotta

Observed

2021 Feb 01 - 10:35

Uploaded

2021 Aug 24 - 22:31

Objects

Zubenelgenubi

Equipment

Meade 10-inch (245 mm) "Advanced" Ritchey-Chretien catadioptric telescope
Ploessl oculars 32 mm, 17 mm, and 8 mm

Location

Austin, Texas, USA 30d 10m 38s N 97d 48m 18s W

Target name

Zuben el Genubi A and B

Title

Zuben el Genubi (Alpha Librae)

About this image

I calculated the fields-of-view and attempted to draw to scale. Using several oculars ("eyepieces") I made these estimates:

Occ Mag FOV. Separation

32mm 78.125 X 38.4 arcmin 7.6 arc min

17mm 147 X 20 arcmin 8 arc min

8 mm 312 X. 9.6 arcmin 6 arc min

I noted that Zuben el Genubi appeared blue white and its companion white but yellower

Checking Burnham's Celestial Handbook I found that their separation is given as 3m 51 s.

So, I have a tendency to over-estimate distances across the field of view.

Files associated with this observation

zubenelgenubi 2.jpg (747.2 kB)

Like this image

Andy Wilson, Jeremy Shears

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