Observatory Logo


From: TerryMoselaol.com
Date: Mon, 18 Apr 2005 18:25:45 EDT
Subject: Perseids BBQ, HST EVENT, 24 April, ISS

Hi all,

Advance Notice: The IAA will be holding a Perseids BBQ at the Big Collin 
picnic site, on the B94 Ballyclare to Broughshane Road, Co Antrim, on Thursday 11 
August, or if that's cancelled because of adverse weather, then on the 
following night, Friday 12 August.
   Perseid maximum is predicted for 14h BST on Friday 12th, so either the 
previous evening (11/12) or following evening (12/13) should be equally good. 
There's a First Quarter Moon on the 12th, so conditions aren't ideal, but it will 
be very low down even at the start of astronomical twilight, below the hill 
horizon, so it won't interfere too much. We'll start cooking about 8 p.m., and 
aim to have that finished by about 10 p.m., to allow time to prepare for 
observing. Details: 
11 August, 22h BST: Moon = 37.3%. Sets about 22h 42m BST. 
12 August, 22h BST: Moon = 47.6%. Sets about 23h 53m BST.
    Same format as before: you bring all your own food, drink, utensils, 
crockery, cutlery etc; we provide the BBQ to cook on. 
   Also bring your observing clothes & equipment: a lounger or waterproof 
groundsheet, plus rugs etc, & telescope & binocs if you want. More details closer 
to the time, but mark your diaries now!

2. Don't forget the special HST / Faulkes Telescope Event at the Ulster 
Museum, on Sunday afternoon, 24 April: details as per last email.

3. The ISS is now starting another series of morning passes over Ireland: 
details for your own location are available at www.heavens-above.com, which 
also gives details of brilliant Iridium flares, and other bright satellites, 
again calculated just for your own location. The predicted magnitudes for the best 
passes are now slightly brighter than before, so they must be allowing for 
the fact that the ISS is slowly growing! In any case, the observed magnitude is 
often brighter than the conservative predicted magnitude, if we happen to get 
a reflection from a particularly bright part of the spacecraft.

Clear skies,

Terry Moseley

---------

Last Revised: 2005 April 18th
WWW contact:webmaster@arm.ac.uk
Go to HOME PageHome Page