MON (Members Observing Night) : Jupiter and Ganymede

Date/Time:
Date: 11 Oct 21
7:00 pm - 11:45 pm

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MON (Members Observing Night) : Jupiter and Ganymede

Speaker: David Bennett Institution: BAS

A Members Observing Night (MON) is an observational night dedicated to studying a specific object that is currently visible.  It can also be a training night concentrating on a specific observational technique, instrument or software.

The choice is yours so please make a suggestion and let us know what you are interested in doing?

To confirm you intend to come this night just leave a reply here or email:  observatory@bristolastrosoc.org.uk

GO/NOGO decision will be posted here approximately 10.00 am on the morning of the event.

 

Giving Jupiter another go. Tonight Ganymede transits then its shadow chases the Red Spot around the visible disc. Click here to see an animation: 2021-10-11-1800.1-Jupiter-NR

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Location
Failand Observatory

MON (Members Observing Night) : Jupiter and Ganymede

2 thoughts on “MON (Members Observing Night) : Jupiter and Ganymede

  1. Report: Bob and myself had a fine evening using the LX600. Started off watching Ganymede around 20.00 BST. As it slowly moved across the central lighter Equatorial belt we tried different eyepieces to get the best view. Seeing started off good and got worse later. I found that by staring at the pole whilst watching the central belt (slightly averted) I could see Ganymede quite easily and glimpses when it appeared as a small black spot. It reached halfway around 21.00 BST and we decided to take a look at Saturn with globe shadow on ring and Cassini division visible. Took my brain a little time to switch on to viewing the planet looking up rather than looking down on it if that makes sense? We then found Uranus. A casual glimpse and you would think it was another star but comparing it with two stars in the same field it did look different and close inspection showed it to have a distinct but small disc. It didn’t look that blue but putting it out of focus so it was a doughnut did help seeing the colour. Then moved onto M31 and seen as fuzzy blob and back to Ganymede. By this time it was around 22.30 BST and due to poorer seeing and I guess getting closer to the limb, it became more difficult to spot. Bob had work the following day so departed and I installed the club Orion camera to test out the guiding in RA issue we have but after re-balancing scope it’s still as bad. More work needed. Around 23.00 BST and with Jupiter over exposed Ganymede appeared as a pimple on the limb. Cloud started rolling in so packed up for the evening. A good night.

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