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observing aids

any content that aids in observing practices

AAVSO Bulletin 75 for 2012

Predicted Dates of Maxima and Minima of 381 Long Period Variables for 2012

Visual Observing Manual in Persian

The Manual for Visual Observing of Variable Stars is now available in Persian (Farsi).

http://www.aavso.org/visual-observing-manual-persian

This translation would not have been possible without the hard work and dedication of volunteers Fatemeh Bahrani and her colleagues, Ali Honarmand, Fateme Kayanikhoo, Mozhde Mohamadi, Sajad Safari, and Arezoo Saleki of the Dr. Hesabi Institute in Shiraz, Iran (http://www.dr-hesabi.org).

Charts and Sequences Update January 2012

There are over 100 new and revised charts and sequences since the last update in November. Many of these are for stars in the newly formed YSO Section Program, southern stars with new photometry from APASS and campaign targets. The rest are revisions based on issues reported to CHET and requests for new sequences from our observers.

2012 JD Calendar

The 2012 JD Calendar is now available.

Just go to the JD Calendar page and scroll down to the bottom where you will be able to view or download the new calendar.

Happy observing!

Charts and Sequences Update September 2011

The following stars (objects) have new or revised sequences as of September 29, 2011.

Please update your charts if you observe any of these objects.

 

Bob Nelson's O-C files

CCD Views June 2001

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            THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS            
                 25 Birch Street, Cambridge, MA 02138 USA
                 Tel. 617-354-0484       Fax 617-354-0665
                          http://www.aavso.org
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                           June, 2001  Vol 2 No 1

              

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AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484