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.


July 24 - Second Observing Session of the month. Bring your telescopes and binoculars, if you like, and we can help you with them, or observe through our instruments.IF THERE IS NO OBSERVING, Ed Anderson will give a talk on “Observing the Gas Giants - Jupiter and Saturn.”

July 31 - Optical coatings by Tony Pirera.  At Spectrum Thin Films I will discuss how we manufacture optical coatings for astronomical telescopes, and for the space program. This will give people a better understanding of optical coatings, how they are produced and manufactured.


NOTE: August 7 - NEWBIE NIGHT -  7–8 pm – The Astronomical Society of Long Island (ASLI) welcomes everyone to Newbie night at the Vanderbilt Planetarium.  If you have questions about getting started in astronomy, we are here to help.  We will have ASLI members available to work with individuals and small groups to discuss telescopes, binoculars, observing and related topics.  If you have a telescope and need some help, bring it.  At 8:00 PM, if the sky is clear we will go outside to observe the sky.  You can set-up your telescope or look through one of ours.  If the weather is poor there will be a presentation from 8-9 pm focused on those new to astronomy.  We hope to see you there.

Aug 7 - Observing Session, first quarter Moon. For a change of pace, we will be observing the first quarter Moon, which is spectacular with its geological features.  And we don’t need perfectly clear weather in order to observe the Moon.  Jupiter will also be visible at this time- it will be on the meridian at the start of our observing.  Bring your own telescopes, or look through all the telescopes members set up on the observing field.

Aug 14  The Steps to the Moon - by Steve Lieber.  We are celebrating the 50th anniversary of the Apollo 11 Fight to the Moon. What were the steps along the way? This talk will review the Mercury, Gemini, and Apollo programs. We will look at the various fights. Each had a specific purpose. Each brought us closer to the Moon.

Aug 21   Solstice Party, More or Less.  We couldn’t decide whether or not to call this the “Solstice Party” two months late, or the Equinox Party, one month early!  But you know the drill - bring munchies, either healthy or “guilty pleasures” and desserts, and something to drink, and be prepared to visit with fellow ASLI members.

August 28 - 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.


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.