Astronomical Society

of Long Island

 

NOTICE:  All content on this site is Copyright ©2016 by Ken Spencer, The Astronomical Society of Long Island, and the respective photographers.  All Rights Reserved.  Reproduction is forbidden without express written permission.








PROGRAMS FOR SEPTEMBER 2019



Sept 18 - Club Annual Elections.  Come vote in support of the current officers, and members of the Board of Directors.  Or, come “Throw the bums out.”  It is your choice - make a careful decision...   :-)


Sept 25 - Observing, dark sky.  We hope to have clear skies for a regular dark sky observing session.  Bring your own telescopes and binoculars, or look through all the telescopes we bring and set up on the observing field.


PROGRAMS FOR OCTOBER 2019


Oct 2 - Observing - dark sky. We hope to have clear skies for a regular dark sky observing session. Bring your own telescopes and binoculars, or look through all the telescopes we bring and set up on the observing eld.


Oct 9 – Welcome to Jurassic Montana – by John Kerekes. Join me on my trip back 150-Mya. to the Mesozoic Bighorn Basin when a day was 23 hours long, a seaway ran through the middle of North America from the Gulf Of Mexico to Alaska and Dinosaurs roamed the Earth.


Oct 16 - “Learning Rocket Science and Orbital Mechanics” - by John Speroni . Getting real rockets into space requires complex calculations. The computer game Kerbal Space Program exposes players to concepts of rocket design and space fight without having to worry about the math. John will explain how rockets reach orbit, how they maneuver in space, and why strapping boosters onto an underperforming rocket isn’t really an answer.


Oct 23 - Formation of the Earth Moon System -  by Fred Cadieu  A critical event in the formation of the terrestrial planets was the collision of the pre-earth with an approximate mars sized object that resulted in the formation of the present Earth as a very special place. The application of just a bit of physics can illustrate how this event played such a pivotal role for the Earth. The same basic physics indicate that the development of Venus and Earth should be very different. Professor Fred Cadieu has taught physics and astronomy courses in the Physics Department at Queens College of CUNY. 


Oct 30 - Transit of Mercury - by Frank Melillo.  Frank will talk about the upcoming  Transit of Mercury on November 6th.  A transit of Mercury across the Sun takes place when the planet Mercury passes directly between the Sun and a superior planet, becoming visible against the solar disk. During a transit, Mercury appears as a tiny black dot moving across the disk of the Sun. Transits of Mercury with respect to Earth are much more frequent than transits of Venus, with about 13 or 14 per century, in part because Mercury is closer to the Sun and orbits it more rapidly.

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NGC 4216 in the Virgo Cluster by Dave Barnett





















Our intrepid astrophotographer Dave Barnett apparently needs no sleep at all, judging by his latest handiwork.  In the center of the frame is the galaxy NGC 4216 in the Virgo Cluster.  It is 40 million light-years distant, and is an edge-on spiral galaxy.  It is nearly 100,000 light-years across, about the size of our own Milky Way galaxy.  It is flanked by fellow Virgo cluster member NGC 4222.  If you are thinking of trying astrophotography, you should know this is not a simple trick.  He used an 8” f/4 Newtonian, and this final image is a stack of 4 minute long sub exposures with a total time of 92 minutes.