FOR THE PROMOTION OF ASTRONOMY AND SCIENCE FOR FAMILIES, SCHOOLS, AND COMMUNITY in GREENVILLE, SOUTH CAROLINA AND SURROUNDING REGION
Visit our RMA Club Meeting page for links to previous presentations
Join Us For Our Roper Mountain Astronomers Meeting
It will be in the top floor conference room beside the observatory
Everyone is welcome to join us
This is a perfect opportunity to see what Roper Mountain Astronomers is about.
Michael Fedor will be presenting the Caldwell List
Michael is the Vice President of Roper Mountain Astronomers. He is an experienced dark sky observer and astrophotographer.
RMA T-Shirts are for sale at our General meetings for $18
L and XL Available.
APRIL OUTREACH EVENT
525 Oak Grove Rd., Spartanburg SC 29301
Thursday April 30, 2015
RMA member Lee Ott will present “Getting Started with Stargazing and if weather permits, the audience will have an opportunity to look through telescopes after the presentation.
RMA members are requested to bring their equipment, knowledge, and enthusiasm for amateur Astronomy.
7:30 Volunteer and Staff arrival time; set up presentation inside library and observing equipment outside
7:45 Group goes outside to observe
8:00 Presentation begins
9:30 Library closes
The Star Party for this Saturday evening has been cancelled due to the weather predictions. Our page will be updated once we can reschedule.
Plan to arrive before sunset to set up your Telescope and any other equipment.
Weather permitting so make sure to check in Saturday evening for updates
Southern Star 2015
Upper Left: Speaker Jim Mullaney (Astronomy Lecturer and Author) and Dr. John Cox
Upper Right: Frank and Debbie Crowder
Bottom L – R Nancy Mawhinney, Jason Harrison, Ken Randall, Jack Randall,
2 nd Row L-R: Earl, Mawhinney, Dr Neil Easden, Ed Richards, Robert Jones, Ann Richards (back) Laura Randall, Dennis Wilde, Lee Pettyjohn
The most famous flashers in the night are the Iridium satellites. A fleet of more than 60 of these communication satellites was launched in the late 1990’s to provide global satellite cell phone service. The costly service never caught on, and the private consortium went bankrupt. The satellites were to have been de-orbited and intentionally burned up in the atmosphere but were saved at the eleventh hour by the US Department of Defense. Orbiting 780 kilometers up, the Iridium satellites have highly reflective antennas, each the size of a door. The antennas act as flat mirrors, creating brief but intense flashes of sunlight. In a few seconds, an Iridium can rise from it’s normal magnitude of +6 (barely visible to the naked eye) to as high as magnitude -8, which is 25 times brighter than Venus. A brilliant “star” literally appears out of nowhere, then, after a few seconds of prominence, quickly disappears. Iridium flares are visible almost every night but are highly localized. A friend in the next country won’t see the same flare you see. For predictions, see www.heavens-above.com “The Backyard Astronomer’s Guide” by Terrence Dickinson & Alan Dyer
Article Contributed by Ed Richards
Compliments of Telescope.com