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Light Curve of the Week

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Carolyn Hurless Online Institute for Continuing Education

Carolyn Hurless Online Institute for Continuing Education

CHOICE is a new collection of informal, online short courses about variable star topics.

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101st Spring Meeting

101st Spring Meeting

Registration is now open for the May 2012 joint meeting with SAS!

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MyNewsFlash Upgrade

MyNewsFlash Upgrade

There are tens of thousands of variable stars in the sky. Stay in touch with your favorites using the new version of the free MyNewsFlash system.

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Variable Star of the Season: Novae (2012 edition)

Variable Star of the Season: Novae (2012 edition)

Kristine Larsen updates one of our classic Variable Star of the Season articles with new insights and new novae!

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Supernova 2011fe in M101

Supernova 2011fe in M101

The brightest supernova in the last 20 years!

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Recent Activity
 
 
  • AAVSO Newsletter 51 is now online Feb 3
  • 2013 Spring Meeting Site Proposals Wanted Feb 1
  • Charts and Sequences Update January 2012 Jan 29
  • Alert Notice 451: Monitoring of the Symbiotic Variable RT Cru... Jan 27
  • William Tyler Olcott Mentioned in Norwich Bulletin Jan 27
  • Accounting Clerk Wanted for p/t Position at AAVSO HQ Jan 26
  • Join us for an online chat on Thursday Jan. 26 Jan 25
News Archives

Variable Star Observations in Database:

21,282,662 and Counting ...
Last Observation Received:

3 hours 6 min ago by SHA - HORACE SMITH (USA)

SN 2012A    Feb 5.0916    13.91V    

 
 

Blog: From the Staff

A Starry Night in the Negev

LaurenRosenbaum
By LaurenRosenbaum - January 30, 2012 - 11:50am

I was recently lucky enough to take a ten-day trip crisscrossing Israel with forty other young adults.  It was an incredible journey that included floating in the Dead Sea, winding through the streets of old Jerusalem, enjoying the Tel Aviv nightlife, and hiking up a rock plateau to Masada.  However, by far the most profound experience I had was stargazing in the desert region of the Negev.

Continue Reading

Other Centennials

Aaron Price
By Aaron Price - January 20, 2012 - 3:50pm

The AAVSO is not the only citizen science organization that celebrated its 100th anniversary last year. The American Meteor Society (AMS) also celebrated it's centennial. But the connection with the AAVSO goes beyond that. Continue Reading

Michael Koppelman- 2nd Vice President

SXN
By SXN - January 11, 2012 - 12:50pm

 I met Michael Koppelman for the first time sitting under a cabana at the Outrigger Hotel in Waikoloa Beach, Hawaii, at the 2002 Spring Meeting. We had a lot in common, being relatively new to the AAVSO, former professional musicians, variable star enthusiasts, married with children and working for companies we owned. We hit it off right away. Neither of us could have ever imagined that ten years later he would be in line to become president of the AAVSO and I would be on the staff of the organization we love so dearly.

I caught up with Michael recently and we talked about the AAVSO, the future and strategic planning. Continue Reading

Spreading The Word

SXN
By SXN - January 3, 2012 - 8:45am

 One of the things I enjoy doing most is acting as a spokesperson for the AAVSO and sharing my knowledge, experience and enthusiasm about variable stars, observing and the AAVSO with other people. I write blogs, newsletter pieces and articles that reach a lot of people, but there is nothing like the experience of meeting new people face to face and watching their eyes light up as you explain variable stars and stellar evolution, or the seeing light go on as they realize, "Hey, I could do this too!"  Continue Reading

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    • The Location
      • AAVSO Headquarters
      • Directions
      • Guest Suite
    • Our Publications
      • 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
    • Renew Membership
    • Support the AAVSO
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    • Online Forums
      • Getting Started with the AAVSO
      • Foro de Discusión de AAVSO en Español
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      • VPHOT
      • President's Forum
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      • Young Stellar Objects
    • Live Chat Room
    • Staff Blog
    • Social Media
  • Variable Stars
    • What Are They & Why Observe Them?
    • The Stories Variables Tell
    • Types of Variables
    • Variable Star of the Season
    • Reporting Variable Star Discoveries
    • Variable Star Index (VSX)
    • Education Materials
    • 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 (Submit Your Data)
    • Variable Star Charts
      • Variable Star Plotter (VSP)
      • Report Chart Errors
      • Request Comparison Stars
    • AAVSOnet - Our Robotic Telescope Network
    • Basic Observation Planner
    • JD Calculator & Calendar
    • Software Directory
  • Data
    • AAVSO International Database (AID)
    • Portal for Researchers
    • Historic Light Curves
    • WebObs (Submit Your Data)
    • Data Access
      • Download Data in Ascii Form
      • Light Curve Generator (LCG)
      • Quick Look - Raw Data at a Glance
      • MyNewsFlash - Real-Time Data Delivery
    • Data Analysis
      • VPHOT - Online Photometry Tool
      • Zapper - Help Validate Data
      • VStar - Java Visualization & Analysis Tool
    • The AAVSO Photometric All-Sky Survey (APASS)
  • 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)
      • 5-Star Tutorial (Data Analysis)
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