News and Announcements
|05 March||Alert Notice 510: Observations of the symbiotic nova ASAS J174600-2321.3||
March 5, 2015: The AAVSO is requesting observations of the symbiotic nova candidate ASAS J174600-2321.3 during the predicted upcoming eclipse of this system. Observers are asked to begin observing immediately (2015 March 5), and continue observations through the end of July 2015. Both visual and instrumental observations are encouraged; the object was at V=12.28 on 2015 February 6.764 (OCN; S.
|03 March||Introducing "AAVSO Communications"||
We are pleased to announce the launch of AAVSO Communications. The purpose of this monthly email is to highlight new initiatives and ongoing projects in a concise way which we hope you will find informative. Sometimes there is just so much going on that it is hard to keep track of it all. We hope that AAVSO Communications will make it easier for you to see what is happening and follow the links to read more about what interests you.
|26 February||AAVSO Bulletin 78 for 2015 published||
AAVSO Bulletin 78 - Predicted Dates of Maxima and Minima of 380 Long Period Variables for 2015 has been published.
The Bulletin is an essential aid in planning your LPV observing program! Generate a custom version of the Bulletin tailored to your observing needs, or download the Bulletin in PDF or CSV format. Find a list of legacy LPVs in need of observation here as well.
|26 February||Landolt Standards and 21st Century Photometry||
Arlo Landolt should be familiar to most of the AAVSO community, not only as a friend and former councillor of the AAVSO, but as one of the leading figures of astronomical photometry and photometric calibrations. Arlo Landolt's work on standard stars has set the standard -- very literally -- for astronomical photometry for nearly half a century.
|26 February||104th Spring Meeting of the AAVSO - Preliminary Information||
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