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Chryssa Kouveliotou elected to the National Academy of Sciences

Chryssa Kouveliotou elected to the National Academy of Sciences

AAVSO Councillor honored with election to the academy, April 2013

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Eclipsing Binaries in the 21st Century by Guinan et al

Eclipsing Binaries in the 21st Century by Guinan et al

From our Centennial JAAVSO Invited Reviews Series

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The AAVSO Bulletin

The AAVSO Bulletin

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Variable Star Observations in Database:

23,509,505 and Counting ...
Last Observation Received:

1 hour 37 min ago by MIW - Ian Miller (GB)

CSS 130418:174033+414756    May 18.9821    14.921CV    

 
 

Blog: From the Staff

Herb Luft's notebooks: new science from the AAVSO Archives

Matthew Templeton
By Matthew Templeton - May 10, 2013 - 12:25pm

The AAVSO Solar section and AAVSO headquarters are hosting a special guest this week and next, Leif Svalgaard (at center in this photo) of Stanford University/Solar Dynamics Observatory.  Leif is here to digitize sunspot records from the original notebooks of AAVSO member Herbert A. Luft (1908-1988), housed in the Thomas R. and Anna Fay Williams Archives. Continue Reading

Charts and Sequences Team On A Mission

SXN
By SXN - April 8, 2013 - 3:23pm

Compared to the pace of even five years ago, the speed at which the charts and sequences team addresses new and revised sequences is simply astonishing. One of the important factors in this NASCAR paced activity is APASS, the all sky survey nearing completion. Every time a data release is made available the team re-examines its lists of requests and reports to see what else can be fixed or created anew in light of the latest photometric data available. Continue Reading

DSLR Workshop Wrap-Up

SXN
By SXN - March 30, 2013 - 10:44am

It is amazing what two-dozen people can get done in a weekend if they are organized, serious and willing to put in the time and effort to make the most of a two and a half day workshop. I opened up the Google Drive page containing all the final drafts of six chapters written at the workshop and edited during this past week and the material is shaping up into what I believe will be a very useful introduction and instruction manual for newcomers to DSLR photometry. 

Continue Reading

DSLR Manual Workshop: Day One

SXN
By SXN - March 22, 2013 - 7:33pm

Today was the first full day of the AAVSO DSLR Manual Workshop. The goal is to write a user's guide for people interested in doing DSLR photometry. Most of the participants gathered Thursday night for a two hour meet and greet session at headquarters, but the workshop kicked off Friday morning at 9:00 AM. 





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      • Speakers Bureau
    • The Location
      • AAVSO Headquarters
      • Directions
      • Guest Suite
    • Our Publications
      • Annual Report
      • The Journal of the AAVSO
      • Alert and Special Notices
      • AAVSO Newsletter
      • Visual Observing Manual
      • CCD Observing Manual
      • Solar Bulletin
      • plus many more...
    • Apply for Membership
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    • The Stories Variables Tell
    • Types of Variables
    • Variable Star of the Season
    • Education Materials
      • CHOICE Online Institute
      • Science Olympiad
      • Two Eyes, 3D
      • Variable Star Astronomy
      • H-R Diagram Plotting Activity
    • Reporting Variable Star Discoveries
    • Variable Star Index (VSX)
    • AAVSO in Print - Publications Using AAVSO Data
  • Observing
    • Observing at a Glance
    • Observing Sections
    • Observing Manuals
      • Visual Observing Manual
      • CCD Photometry Manual
      • DSLR Photometry Manual
    • Alert and Special Notices
    • Observing Campaigns
    • WebObs (Search AID or Submit Your Data)
    • Variable Star Charts
      • Variable Star Plotter (VSP)
      • Report Chart Errors
      • Request Comparison Stars
    • Observation Planner Tool
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  • Data
    • AAVSO International Database (AID)
    • Portal for Researchers
    • Historic Light Curves
    • WebObs (Submit/Search Data)
    • Data Access
      • Download Data in Ascii Form
      • Light Curve Generator (LCG)
      • MyNewsFlash - Real-Time Data Delivery
      • WebObs Search (Searches AID)
    • Data Analysis
      • VPHOT - Online Photometry Tool
      • Zapper - Help Validate Data
      • VStar - Java Visualization & Analysis Tool
    • The AAVSO Photometric All-Sky Survey (APASS)
    • AAVSOnet
  • Getting Started
    • What Are Variable Stars?
    • Things to Do
    • Find a Mentor
    • Online Forum for Help and Advice
    • Star Tutorials
      • 10-Star Tutorial (Visual Observations of Variable Stars)
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