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Old 26-08-2014, 08:42 PM
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pfitzgerald (Paul)
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School Astronomy Club - Viewing Suggestions

Hi Folks

For the first time this year it looks like I'll be able to hold a viewing night for the Astronomy Club I run at my school this Friday night. I'm not sure how many kids will attend but I plan on running it from home in the driveway from 8 - 9:30 PM.

Here is a tentative list of objects for viewing.

Planetary: Saturn, Mars, Neptune and the Moon.

Star Clusters: NGC 4755 (Jewel Box), NGC 5139 (Omega Centauri)

DSOs: NGC 7293 (Helix Nebula) - Is this object visually OK in SWED120 refractor? (I've imaged but not viewed it myself yet!)

Binary Stars: Alpha Centauri and Albireo

And finally Comet C/2013 A1 (Siding Springs) which will be in the SMC on Friday night.

Any further thoughts / suggestions would be much appreciated.

Paul

PS After the kiddlywinks go home I'll have a go at imaging NGC 5139, C/2013 A1 and maybe grab some more data for the Helix nebula. ;-)
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Old 26-08-2014, 08:50 PM
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killswitch (Edison)
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M7 and other nearby clusters. Also Ring nebula and Double Double at Lyra if theres no obstructions.
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Old 26-08-2014, 08:56 PM
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pfitzgerald (Paul)
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Thanks for that Edison, M7 will be Ok, the other two will be too low for my location.

Paul
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Old 27-08-2014, 10:12 AM
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byronpaul (Paul)
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Paul,

Omega Centauri probably position better earlier in the evening, else 47Tuc. Either of these will give the WOW factor.

Would also go for M8 (Lagoon) and M20 (Trifid) Nebulas.

NGC3918 (Blue Planetary) is an easy and interesting target near Crux.

Paul
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Old 27-08-2014, 04:58 PM
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pfitzgerald (Paul)
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Question

Thanks Paul.
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Old 27-08-2014, 05:55 PM
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Hi,

Based on experience setting up at several of these events here in Sydney:

- Saturn and Jupiter are good, especially if you also name a moon or 2 in the FOV as well

- Our Moon is always a big hit, especially if you name one or 2 visible features on the terminator with sizes. I think that the participants like to think "I actually observed Tycho" etc

- Mars does not wow them so much. Only if you have lots of EPs on deck

- Omega Cent or 47 Tuc are good, but you HAVE to explain to them just what they are looking at eg "120 L-y across, millions of stars etc"

- I once scored a hit by doing a little spiel on binary stars, then giving them a look at Alpha Cent - "The VERY closest to us, a light ray takes 4.4 yrs blah blah, can you see 2 stars like car headlights" (may Galileo forgive me that one)

- Then we swung around to Albireo "Tell me what you see here, these 2 are blah blah" They just LOVED the colours. Another candidate would be 32 Eridanus or Iota Orion, but you can never spend any time searching, so a go-to mount is good. It was intensive

- A nebula - well, they are grey visually, only the Orion Neb or Eta Carina qualify, but even then, you have to be slick with the info. Trapezium when it is up, you can do a quick talk on star nurseries.

- M57 when seeing is good "This will be the fate of our Sun etc". Oh....you may be too far South

- the Jewel Box, all those

The biggest problem you will have is guests grabbing the EP (it seems genetic) and slewing it away. Also bring some 3-step ladders (thanks Alex) as they are very handy for the littlies


Cheers

Last edited by GeoffW1; 27-08-2014 at 06:42 PM. Reason: Too insulting
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Old 27-08-2014, 09:02 PM
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pfitzgerald (Paul)
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Thanks Geoff - they're all great tips and advice.

Believe it not the last viewing night we had was March last year! Mainly due to a lack of good viewing weather on a Friday night (Every other night during the week the girls have something else on)

Paul
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Old 31-08-2014, 03:54 PM
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Hi Folks

Well as most Melbournians know Friday night was an absolute bust weather wise! Disappointing to say the least after having gone through a quick dry run myself on Thursday night.

However, last night offered superb conditions for holding a viewing night and most of the students and their parents who were disappointed Friday night were able to make it last night (5 students and 4 parents).

We started off at about 7:45 pm with a quick orientation of the night sky, there's the Moon, Saturn and Mars. The Southern Cross and finding South, Scorpio with its red heart Antares.

Then it was time to look at the sky through the telescope (SWED120BD). We started with the Moon using a 28 mm eyepiece followed by a 5 mm one (this eyepiece combination we used throughout the night) with lots of oohs and aahs and how comments about the level of detail seen. Then on to Saturn - definitely a highlight for most as they'd never seen Saturn 'live' through a telescope before - articularly throught he 5 mm eyepiece. Mars was also surprisingingly good, particularly as it was easily seen as being gibbous and not fully illuminated. I also asked the girls to have a think about why this was the case and they came up with the correct answer (one happy teacher was I). Next was Neptune and even though it was but a blue/green dot they were still impressed that they could actually see it.

Next it was onto the double stars of Albireo and Alpha Centauri followed by 47 Tuc (Omega Centauri was almost directly in line with the only street light in the court). NGC 4755 the jewel box was next followed lastly by M8 where they were able to just detect the nebulosity around its core. I then replaced the eyepiece with my Canon 60Da, fired up the guidescope and then took a five minute exposure (hot chocolates and bickies time) to show them how it would really look if our eyes were sensative enough. They were all suitably blown away and asked to have a look at any of the other images I'd taken - which I duly did (and feeling that I still have such a long way to go with my processing skills!).

A quick group photo or two for the school newsletter and magazine and at 10:45 pm it was time to go home with a request for me to continue imaging M8 so that they could have a copy for the background screen on their iPads and laptops. It felt really good to see the genuine smiles of joy on my students and their parents alike as they left for home. I finally crawled into bed at about 4:30 am, I just had to have a quick go at M42 and the running man!

A huge thank you to Edison, Paul, Geoff and Alex for their thoughts and suggestions. They went a long way to making the night a success. Hopefully the weather will be kind to us in a couple of months time and we can look at some new objects.

Paul
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Old 31-08-2014, 06:47 PM
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They are fun to do
I have done a couple myself , like you say the ooos and aaahs make it worth it .

David
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Old 31-08-2014, 11:51 PM
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mental4astro (Alexander)
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Paul,

I am pleased that the 'second' night went well for you,

I am glad you also pulled out a camera and plugged it into the scope. I honestly feel is adds an special element on top of first being able to look through a scope. The camera then is able to overcome the shortcomings of our human eyes to pull out more detail and colour.



Alex.
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