VBAS Calendar

May 2018
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Monte Sano State Park


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Monthly Society Meeting

The next VBAS Monthly Meeting is Friday, May 18 at 7:30 PM.

Join us for our next meeting on May 18 at 7:30 PM, pizza at 7:00 PM. The May meeting is our annual meeting and a new Vice President will be elected along with several Board Members with expiring terms. This month's program is on Variable Star Photometry presented by Gary Huffman.

Title: An Introduction to DSLR Variable Star Photometry

Description: An Introduction to DSLR Variable Star Photometry describes the process of using a DSLR camera for measuring the magnitude of variable stars. The talk will describe the resources available through the American Association of Variable Star Observers (AAVSO), what equipment is needed, available software, image acquisition, image processing, calibration frames, variable star estimates and how to report the results to the AAVSO. This discussion will cover the basic procedures and provide information necessary to get started.

Bio: Started fifty years ago as an amateur astronomer using a Tasco 60mm refractor, about eight years later purchased the parts and assembled an eight inch Newtonian reflector, then graduated to currently using an 8” SCT. While in college I learned about photoelectric photometry but never pursued it due to the cost and complexity of the equipment. That interest was renewed a few years ago after reading a Sky and Telescope article about the Citizen Sky project which used DSLRs. So I thought why not give it a try since I already have a telescope, a camera and best of all I did not need to purchase those costly filters. After further research I attempted photometry but soon found out that the time available was not there. Since recently retiring that time became available. So I joined the AAVSO and about six months later a mentor was appointed who taught the whole process which lead to submitting data for two variables. A short time later, last December, I took the online AAVSO DSLR Photometry course. Although I am a novice, my hopes are that I will provide enough info to spark the interest of others.

Don Reed


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