1. NLCs. The season for seeing Noctilucent Clouds (NLCs) runs from now until late July. Look low in the North for about two hours on either side of local midnight (allowing for longitude and summer time, i.e. local midnight in Ireland is approximately 01.20 to 01.40 clock time). They appear as silvery/white streaks and wisps shining brighter against the twilit background sky. The further South you are, the less chance you have of seeing them, as they will appear much closer to the horizon.
2. OM Events at Davagh Dark Sky Park: There will be some daytime moon and sun viewing sessions and a little 'AstronOMy' Club, plus other things related to the forest and so on. The page to check is: What's On | Guided tours at OM Dark Sky Park and Observatory
3. Our Place In Space | What's On The interactive scale model of the Solar System on Divis, just outside Belfast. See Scale model of solar system installed in Belfast hills (msn.com) For details of the Belfast events, see: Belfast | Our Place In Space.
4. Summer Solstice. The Sun reaches its most Northerly point on the ecliptic on 21 June at 09.13 (10.13 B/IST) marking the start of N. Hemisphere Summer.
5. Parade of the Planets, 20 to 28 June
During this period, all the naked eye planets will be visible together in the morning sky, in order of their distance from the Sun, although Mercury will be very low and you'll need binoculars to see it, except perhaps from the very far South of the island. The waning Moon will also be in the area, and on the mornings of 22 to 26 June, the Moon will also be in its correct order from the Sun, i.e. Mercury, Venus, Moon, Mars, Jupiter and Saturn.
Aesthetically, the nicest view will be on the 24th, with the waning crescent Moon about halfway between Venus and Mars.
To find Mercury, look about 10º below left of brilliant Venus, at an angle of about 8p.m. on a clock face. From the N of the island it won't rise until civil twilight has started, and it will be only mag -0.1 on the 24th, -0.2 on the 25th, -0.3 on the 26th, -0.4 on the 27th and -0.5 on the 28th, so binoculars or a wide-field telescope will be required.
On the 27th, Mercury will lie below the thin crescent Moon, and that will be your last good chance to find Mercury and to be able to see the Moon in the line-up.
Uranus and Neptune will also be in the line, but not in order, and you'll need binoculars or a telescope to see them.
6. Asteroid Day, 30 June.
7. ISS: A new series of morning passes starts on 1 July, transitioning into a mixture of morning and evening passes, and then evening passes only, continuing to 28 July. Details as usual on www.heavens-above.com
8. Space and Astronomy Webinar returns, 4 July. The next one will be at 7.30 on Tuesday 4 July. More details and links in next bulletin
9. On the Moon Again is Back on 8-10 July.
You are invited to join in a global project to bring observational astronomy to the streets of communities. On the Moon Again will take place from 8-10 July. For more information, see their website; to register your activity, fill out this form.
10. Davagh Dark Sky Park and Observatory is open, with pre-booking, and some restrictions.
See https://www.midulstercouncil.org/visitor/things-to-do/star-gazing/davagh-dark-sky-observatory , and https://www.facebook.com/omdarksky/ I'll post any updates here. Or phone 03000 132 132 for changing Covid-19 advice.
11. EASY TEASER:
What comes up sideways, but goes down vertically? No guesses yet, so - Clue: There's a pair. Another clue: "It's in your stars". Another clue: the coming up starts in the autumn, and the going down happens in the spring. Still no correct answers, so here's a final clue. It's a constellation .
12. DIFFICULT TEASER:
What's the connection between: a London Borough, a piece of rock, and another solar system body? No guesses yet, so – Clue: the other solar system body is a planet. Another clue: it's one of the 'terrestrial planets". Another clue: the residents of the borough seem to like using their car horns.
Please send all Teaser answers to me at my aol address email@example.com
13. INTERESTING WEBLINKS (Disclaimer - Use of material herein from various sources does not imply approval or otherwise of the opinions, political or otherwise, of those sources). NB: If the title in the weblink does not indicate the subject matter, I give a brief simple intro before the link. I may also comment about the link afterwards.
Tracing the remnants of Andromeda's violent history: A detailed analysis of the composition and motion of more than 500 stars revealed conclusive evidence of ancient a collision between Andromeda and a neighboring galaxy -- ScienceDaily
Astronomers find evidence for most powerful pulsar in distant galaxy -- ScienceDaily (Note quote from Gregg Hallinan!)
Your chance to see a Black Hole yourself https://www.facebook.com/184127114954273/posts/5589925301041067/?sfnsn=scwspmo
Watching the death of a rare giant star -- ScienceDaily Interesting. But Betelgeuse is usually classed just as a Red Supergiant, not a Hypergiant. I wonder what the surface temperature of VY CMa is? Probably fairly low, comparatively speaking, as it's so distended.
HST determines mass of rogue Black Hole https://www.facebook.com/100000261915995/posts/5568688463149829/?sfnsn=scwspmo
EARTH & MOON
Luna 25 will be heading for the lunar S. Pole in September https://www.facebook.com/551070831/posts/10160742741270832/?sfnsn=mo
Researcher Claims Four 'Alien Civilisations' in the Milky Way Could Attack Earth (msn.com) Why would they bother? - We're doing a good enough job ourselves!
Aliens could use rogue planets to reach Earth (msn.com) Just one problem - how do you steer a planet through space????
Scientists on the hunt for planetary formation fossils reveal unexpected eccentricities in nearby debris disk: First radio images of HD 53143 shed new light on the early development of Sun-like systems -- ScienceDaily
Fascinating video https://www.facebook.com/reel/433464534897071?fs=e&s=cl
New maps of asteroid Psyche reveal an ancient world of metal and rock: The varied surface suggests a dynamic history, which could include metallic eruptions, asteroid-shaking impacts, and a lost rocky mantle -- ScienceDaily Is an astronomer who studies this object a Psychelogist?
NASA scientists flock to the Australian outback to see the one-second 'flash' that could unlock the secrets of Pluto - ABC News Isn't astronomy amazing? – what you can do even with portable telescopes!
What happened before, during and after solar system formation? A recent study of the Asteroid Ryugu holds the answers: A team of scientists undertake a comprehensive analysis of samples returned from the Japan Aerospace Exploration Agency's Hayabusa2 mission and provide invaluable insights into the formation and evolution of our solar system -- ScienceDaily
Russia and the ISS https://www.facebook.com/551070831/posts/10160757144965832/?sfnsn=scwspmo
Russia's new nuclear powered rocket https://www.youtube.com/watch?v=ysT-PujxtG4
The problem of space debris. https://www.facebook.com/8860325749/posts/10160072902915750/?sfnsn=scwspmo
Finally! Inmarsat launches UK's OWN Galileo replacement in huge post-Brexit win (msn.com) – Sure, what's an extra £364 million?
Fantastic video! https://fb.watch/dLluMJX-1s/
Odd sunspot appears https://www.facebook.com/100007370648561/posts/3183818445207146/?sfnsn=scwspmo
TELESCOPES, INSTRUMENTS, TECHNIQUES.
World's largest Liquid Mirror Telescope. https://m.facebook.com/story.php?story_fbid=3306714009557414&id=100006565414017&sfnsn=scwspmo
NASA plans giant radio telescope on lunar farside https://www.facebook.com/100045998303732/posts/571008754442396/?sfnsn=scwspmo
UFOs, UAPs etc
14. JOINING the IRISH ASTRONOMICAL ASSOCIATION. This link gives options to join the IAA.
https://irishastro.org/join-the-iaa/ If you are a UK taxpayer, please select the 'gift-aid' box, as that enables us to reclaim the standard rate of tax on your subscription, at no cost to you. You can also make a donation via Paypal if you wish: just click on the 'Donate' button. See also https://irishastro.org/
The Irish Astronomical Association is registered with The Charity Commission for Northern Ireland NIC 105858
DISCLAIMER: Any views expressed herein are mine, and do not necessarily represent those of the IAA.