May General Meeting

16 05 2013

The NSAS May General Meeting will be next Tuesday the 21st at 7:30PM at Regis Hall (lower), St Ignatius College, Riverview. The speaker is Dr Ivy Wong from CSIRO, who will speak on “The Space Shuttle Era”. Her abstract follows:

The space shuttle era concluded 2 years ago. This talk will describe the purpose and impact of its 31 years of operation. Although the impact of the shuttle era reaches well beyond the realms of space exploration and astronomy, I will only have time to present a glimpse of the technological impacts on our every-day life as well as provide an astronomer’s perspective on the significance of this era. Much of our understanding of the Universe would not have been possible without such a program.

Should be an interesting subject. As usual, visitors are welcome.





What’s on at NSAS in May

11 05 2013

Just to remind you of what’s on in May, the General Meeting is Tuesday the 21st, and the speaker is Dr Ivy Wong from CSIRO, who will speak about “The Space Shuttle Era”. The third session of the New Astronomers Group will be on Tuesday the 28th, and if the sky cooperates, will be a practical session on observing. All programs will be at Regis Hall, St Ignatius, commencing 7:30 PM.





Speaker for next Tuesday’s General Meeting

12 04 2013

Our speaker for next Tuesday’s General Meeting (16 April) is Dr Mark Phillips, who is Associate Director for the Magellan Telescopes at Las Campanas, Chile. He will talk to us on:

Exploding Stars and the Fate of the Universe
Edwin Hubble’s discovery of Cepheid variable stars in the Andromeda galaxy not only resolved the great debate over the nature of the spiral nebulae, but also was the first important step in realizing that supernovas are the catastrophic explosions of stars. In this talk, I start with the puzzle of the “Guest Stars”, and end with how we have used supernovas to discover the fate of the Universe. Along the way, I will review how different stars explode, and how we came to use a certain kind of supernova, the “Type Ia” class, as cosmological standard candles. If time permits, I will also take a few minutes to talk about the growth of international astronomy in Chile, and one of the next-generation extremely-large telescope projects, the Giant Magellan Telescope.

The meeting commences at 7:30PM at Regis Hall, St Ignatius College, Riverview, and as usual, visitors are welcome.





What’s on at NSAS in April

10 04 2013

As the Theory Group is in recess for 3 months, the first activity this month is next Tuesday the 16th, which is the General Meeting at 7:30 PM. Our speaker this month is Dr Mark Phillips from Las Campanas Observatory, who will speak on “Exploding Stars and Our Place in the Universe”. Tuesday the 23rd will be session 2 of the New Astronomers Group, also at Regis Hall at 7:30.





NSAS General Meeting Tuesday 19th

16 03 2013

Our speaker this month at next Tuesday’s GM is Dr Joao Bento, who is a post-doc Research Fellow at Macquarie University, and hardware specialist. His abstract follows:

Title: Exoplanet astronomy with small telescopes

Abstract: The search for planets outside out solar system had been the in the realm of speculation until 1992, when the first confirmed evidence for the presence of small planet-like bodies orbiting another star was announced. Today, over 700 are known to exist and thousands of unconfirmed good candidates have been proposed. In particular, those planets that transit their parent stars provide the unique opportunity for further detailed studies. The numbers of known transiting Exoplanets has seen a dramatic boost in the last few years with the results from the Kepler spacecraft, but the pioneering projects at the early stages of the discovery phase were led primarily by inexpensive small robotic facilities.

In this talk I will review some of the current and future ground-based facilities used to find transiting planets, as well as why such planets are probably the most important of all.

As usual, the GM starts at 7:30 PM, and we will be in the classroom under Regis Hall, St Ignatius College.





What’s on in March

6 03 2013

I would like to update you with the coming March events. Let me know via NSAS Gmail if I have missed anything.

• Committee Meeting – being 7.00pm Tuesday 12 March at the classrooms below Regis Hall, which will be followed by -
• Theory Group at 7.45pm on the same night
• General Meeting 7.30pm Tuesday 19 March at the classrooms below Regis Hall
o Guest Speaker Dr Joao Bento, a post doctorate student at Macquarie Uni, who will be speaking on “Transiting Exoplanet Search With Small Telescopes” – should be an excellent talk so come along and take part
• Observation Nights – the Observation Night for March is Friday 8th, with the backup being Friday 15th. Keep an eye out on the site for Tim’s advice as to whether the night is on or off. Visitors and interested community members are especially encouraged to simply turn up – no telescope required. Vast or nil experience in observing is equally appropriate.
For your information, Irene Justiniano has volunteered to act as co-ordinator for all Outreach activities. Her role will be simply to monitor outreach, by way of ensuring each activity has a Project Manager in place. It will be the role of the Project Manager to undertake the various requirements of the night, including liaison with the organisation (eg a school, or council), checking out the site, arranging volunteers with telescopes, and ensuring any support or promotional material is on hand. It will be the role of the committee to ensure that appropriate guidelines are in place to assist the Project Manager.

Outreach activities coming up in April / May are:
- Parramatta Star Party (13 April – Project Manager to be appointed – volunteers?)
- West Ryde Primary School (9 May – Project Manager Peter Korber)
- Ryde Secondary College (date and Project Manager to be confirmed – volunteers?)
- Macquarie Open Night (Project Manager Bob Fuller – 18 May)

Of special note is that the New Astronomers’ Group has been confirmed as starting up in March – being the 4th Tuesday (26 March). Bob Fuller and Geoff Unsworth have put together a full syllabus of material over a seven month period, and covering a large selection of introductory topics including everything about telescopes and how to use them, what to look at (solar system and deep space), how to look at them, and astrophotography. Practical demonstrations are also part of the course.

We believe the new NAG course will be of immense benefit to a significant number of our new (and maybe not so new) members, and to the family and friends of our members. The course is available to students and the wider community and we are also looking at ways to promote the course to the community, including using our website to assist with promotion. I ask all members to think of ways in which they may be able to get the message out there, so that this course enjoys maximum exposure, and consequent flow-on benefits for NSAS. A once only fee of $5 will be charged to non members to attend, and which will be allocated to the membership fee if that option is taken up.

Please note that all NSAS activities at the College will from March onwards, be conducted in the classrooms below Regis Hall. The classrooms should suit our needs much better than the Hall itself.

Regards to all

Bruce Retallick





NSAS Events for December

11 12 2012

I would like to update you with “What’s on in December”. Again, apologies for the delay – we should be right from now on. Let me know via NSAS Gmail if I have missed anything.
• Committee Meeting – being 7.00pm 11 December at Regis Hall, followed by
o Theory Group at 7.45pm (the Committee Meeting won’t be so long this time)
• Christmas Party – being 7.30pm 18 December at our former premises at the Father Mac Pavilion (ie the small pavilion at the main oval on the main college grounds, for those who are not aware). The College has confirmed the availability of the pavilion, and it is a more pleasant location for the party. Drinks are supplied, and please bring a plate to share.
• Observation Nights – the Observation Night on 7 December was cancelled for the usual reasons, as you would have noted from the web site. Back-up date is Friday 14th. Keep an eye out for Tim’s advice as to whether the night is on or off.
A reminder from Jean-Luc that he needs contributions to Reflections now
For all interested members, especially new members who have little expertise or technical knowledge, the New Astronomers Group will hopefully re-commence probably March. Don’t hesitate in making enquiries through NSAS Gmail. You don’t need a telescope, just interest.
Regards to all
Bruce Retallick





What’s on at NSAS in November

10 11 2012

Hello NSAS Members
I would like to update you with the “What’s on in November” list. This is something Bob has generally sent out to you earlier in the month, but with a new President and Committee, we are only beginning to work through what happens and when. To my understanding the following matters are “what’s on” but there may be more. Let me know via NSAS Gmail if I have missed anything.
• Committee Meeting – being 7.00pm 13 November at Regis Hall, followed by
o Theory Group at 7.45pm (assuming the Committee finishes on time)
• Monthly Meeting – being 7.30pm 20 November at Regis Hall. Note the speaker will be our own Arthur Boyd, whose topic is La Perouse and Captain Cook – some very early Australiana
• Observation Nights – noted the first programmed night is actually 9 November, so this advice won’t help much there (sorry). Backup is Friday 16th.
On 14 November Lawrie Webb will be setting up his solar telescope at Tantallon Oval, Lane Cove, from 7am, to observe the partial solar eclipse. He would appreciate members and friends turning up either with or without telescopes, to join him in the observation. And maybe with a cup of coffee to share?
A reminder from Jean-Luc that he needs contributions to Reflections now, and certainly prior to 31 December
The Christmas Party is coming up 18 December – it’s a fun night. Drinks are supplied, but we need you to bring a plate.
For all interested members, especially new members who have little expertise or technical knowledge, the New Astronomers Group will hopefully re-commence in February. Don’t hesitate in making enquiries through NSAS Gmail. You don’t need a telescope, just interest.
Regards to all
Bruce Retallick





Message from our new President

10 11 2012

Hello all NSAS members

As newly elected President of NSAS I would like to bring you up to date following the recent monthly meeting and AGM. Bob Fuller was away in the US and so as Vice President I took the chair for the monthly meeting. I noticed the attendance at the Monthly / AGM was fairly low, which was hard to understand. Perhaps we should put on a full buffet next year, but otherwise I can’t understand why attendance at an AGM would not be stronger!

At the Monthly meeting, quite a few points came up, many of which had been raised at the Committee Meeting. In point form:
- Astronomy 2013 is now available (being ordered)
- expenses for the year exceeded income, and which point led to later discussion on whether the annual fee should be considered (it has been unchanged for decades)
- Macquarie Open Night was discussed (the event was held the next weekend and was very successful, though observing was restricted)
- the meeting discussed the prospect of sending out Reflections by email only, and whether that would affect many of our members – the Committee will consider further, but any member having a view on this should let the Committee know by email
- the Christmas Party is coming up – 18 Dec – a big attendance is hoped for, and members are asked to please bring a plate of their favourite goodies. Drinks are supplied.
- the Committee will work through a more formal procedure for assisting our visitors and new members
- Lawrie Webb will be setting up at Tantallon Oval to observe the partial eclipse of the sun, and he would be delighted to have as many join him as possible approx 7am Wed 14 November ie next week
- Bob Roeth was to hold (and did hold) the 5th Tuesday Mathematics in Astronomy later in October
- Publications available: Astrovisuals Calendar $9 (contact Bob Roeth); Paul Shallow has the 2 CD Ceduna Eclipse for sale at $5
- Geoff Welch Prize: the three winners of the $50 (each) and a copy of Geoff’s book and a Presentation Certificate were Arthur Boyd for “La Perouse’s Incomplete Voyage”, Irene Justiniano for “Clear with a Chance of Meteor Shower”, and Bob Roeth for “Magnitudes, Wikipedia and Errors”

After the Monthly Meeting the AGM was held and again I acted as Chairman in Bob’s absence (Bob was acting as NSAS operative covering the US election and its impact on NSAS, and world, amateur astronomy) . In summary:
- all went well
- a discussion on annual fees occurred, and the Committee will consider further and come back to the members
- the Committee will discuss reinstating the Gordon Stott Imaging Prize
- I provided some comment on the last 12 month’s activities for the club, including observations, the sub groups and field trips (to Canberra / Tidbinbilla and Coonabarrabran)

Prior to the elections for the next twelve months, appreciation was expressed to the outgoing Committee, in particular to Bob Fuller who as President and Vice President before that, has carried far too heavy a burden for NSAS for several years – it was agreed a small gift of appreciation should be purchased for Bob.
The Committee then stood down and elections for the next twelve months were held, with the following results:
President – Bruce Retallick
Vice President – Gordon Ogborne
Treasurer – Ken Schofield
Secretary – Irene Justiniano
Committee Without Portfolio – Peter Korda, Anna Koeneman and Chris Anderson
As President I thank those who have volunteered their services. There has been quite a turnover in Committee membership and over the next few months we will work on getting a handle across all those tasks that need to be undertaken. We have the benefit of the previous members having all offered their assistance – and this will undoubtedly be called upon!
I offered a few comments as President:
- my interests are fairly broad but unlike previous Presidents, I am not a technically oriented person, and will need support in those areas – I will not be able to take on any technical roles or lead in discussions
- I will be working on assessing our collective knowledge and expertise to ensure that we fully understand our capacities and commitments – and including that of our new members
- we must look after our visitors and new members better – we all have a responsibility to make them feel welcome
- we must all wear our name tags at meetings – such a small point, but so important
- we should pay some attention to formalising our aims and objectives, including the Outreach program, and in accordance with our capacity and our desires
Since becoming President I have noted many possible actions and points of interest. I look forward to bringing at least some of them forward for consideration, and to a successful twelve months.
Regards to all
Bruce Retallick





NSAS Activities for October

26 09 2012

October is mainly taken up by the Oct General Meeting and AGM, which is on Tuesday the 16th, 7:30 PM. Attending the AGM is very important for the future of the Society, as not only will you choose the next Committee, you get a chance to talk to them about what you would like to see over the next year. Please make the effort to attend. Not only that, but the Geoff Welch Prizes will be awarded during the GM. Otherwise, the Theory Group meets on Tuesday the 9th at 7:45 PM. All meetings are at Regis Hall, St Ignatius College. Observing in October is planned for the Fridays 5th and 12th, at North Turramurra Golf Course.








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