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IAS Public Star Party


Dublin Sidewalk Astronomers

Sandymount, Dublin

Friday, Dec 9th 2016 (20.00 hrs):

The Dublin Sidewalk Astronomers meet at the car park, on Strand Road, just south of the Sandymount Martello Tower, Dublin 4.

Clontarf, Dublin

Saturday, Dec 10th 2016 (20.00 hrs):

This continues the new venture by the Dublin Sidewalk Astronomers of the IAS. The venue is the seafront car park, on Clontarf Road, opposite the Clontarf Bus Garage, Dublin 3.

Free, all welcome to both nights.

Please note that the events are weather dependent.


Mars low in the south

Mars (mag +0.7) is visible very low in the south after sunset. Actually in the coming months its visibility will get better, despite its elongation decreasing (due to a more favourable ecliptic angle). The apparent diameter is only 6".

Still Mars is in the news, ESA's and Roscosmos's ExoMars mission reached the planet on 19th October 2016, with successful orbit-insertion of the Trace Gas Orbiter. However, although the Schiaparelli lander successfully descended through the atmosphere, it crashed on the surface about one minute before the scheduled landing time.

An investigation showed that an error in interpreting the correct altitude from the doppler radar, let to the descent engine of Schiaparelli being prematurely turned off. The good news is that a recent ESA meeting has given the go ahead for the Exomars Rover, due for launch in 2020.


Sky-High 2016 is now free

In preparation for Sky-High 2017, Sky-High 2016 is now available as a free download. Please visit our Sky-High page.

Developing Detectors and Instruments for Astrophysics

by Prof. Lorraine Hanlon (UCD)

Monday 30th January 2017 at 20.00 hrs.
Venue: Ely House, 8 Ely Place, Dublin 2. All welcome, free event.

This talk outlines the research programme conducted by the UCD Space Science group.


IAS Membership renewal due

Membership renewals are due from the 1st August 2016. Please see the applicable rates for this year.


Malahide Community School astronomy course

Beginners may be interested in the astronomy course run by IAS member John Daly at the Malahide Community School. The 10 week course including topics such as planets of the solar system, galaxies, the lives of stars, a brief history of astronomy, advice on choosing a telescope, the latest happenings in space and much more.

More information and how to book. Also you can contact by phone on 01 8460949 or 086 8188783.

Note that this is not run by the IAS.


Members observe Total Solar Eclipse of 9 March 2016 from Indonesia

solar eclipse

Angela O'Connell reports:

A view of totality from the MS Volendam, on the starboard bow, mid-ship. We were located in the Makassar Strait between the islands of Borneo and Sulawesi, about 1½ degrees south of the equator. The sea was surprisingly calm and the ship was steady allowing those of us with tripods to relax and concentrate on the spectacle which lasted 2 min 46 sec approximately. Photo (at left) taken 08:34 (local time), 9th March 2016 with Lumix GM5 on automatic night scene setting.


solar eclipse

Terry Moseley reports:

The solar corona during totality. Photo taken 08:36 (local time), 9th March 2016 with Canon Power Shot with x42 zoom.

The next total solar eclipse occurs in August 2017, only touching land in USA.



Total Lunar Eclipse of 28 September 2015 was well seen by most

lunar eclipse

We were treated to a fine total lunar eclipse.

The photo of the eclipse was taken by J. O'Neill, at 02.21 UT, with a 106 mm refractor at f/8. This was 10 min after the start of totality.

The next total lunar eclipse visible from Ireland occurs in July 2018.

Members please report any observations, drawings or photographs to our Director of Observations, Liam Smyth for inclusion in the next issue of Orbit.



Comet Lovejoy 2014 Q2 near Polaris

In late May 2015, the comet passed about 1° from the pole star Polaris. Remarkably, it was still visible (as of 23 May) in binoculars, at just below mag 8. It was an excellent time to image the comet with a fixed camera, as trailing would be slight.

The photo (below) of the comet is by John O'Neill and was taken on 9-10 January 2015 (cropped; 200 mm camera lens). The drawing of 19 January 2015 is by Deirdre Kelleghan, with details appended.

Please report any observations, drawings or photographs to our Director of Observations, Liam Smyth.

comet lovejoy

comet lovejoy


What's on?

2016 Dec 9 Dublin Sidewalk Astronomy at Sandymount. See Facebook Posts.

2016 Dec 10 Dublin Sidewalk Astronomy at Clontarf.

2017 Jan 30 Talk in Ely House (by Prof. Lorraine Hanlon).

Please see EVENTS/opposite for more details and further events.

If you would like to attend Dunsink Observatory Public Open Nights that are supported by the IAS, you can find more details at Dunsink Observatory.

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