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Light Curve of the Week

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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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Data Usage Reports

Data Usage Reports

Find out how your data are being used!

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AAVSO Building Dedication

AAVSO Building Dedication

The new HQ was officially dedicated at the 100th annual meeting.

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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
 
 
  • 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
  • New Tool to Opt Out of E-Mails Jan 23
  • Visual Observing Manual in Hungarian Jan 23
  • Special Notice #264: SUPERNOVA 2012A IN NGC 3239 = PSN J10250739... Jan 21
  • New eJAAVSO preprint: "New Light Curve for the 1909... Jan 20
News Archives

Variable Star Observations in Database:

21,241,535 and Counting ...
Last Observation Received:

4 min 10 sec ago by SBL - BART STAELS (Belgium)

NY ORI    Jan 27.1355    9.656I    

 
 

Blog: From the Staff

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

Extra, Extra, Read All About It

SXN
By SXN - December 22, 2011 - 11:00pm

There are hundreds of astronomy clubs and astronomical societies in the world, and one thing almost all of them have in common is they produce a monthly newsletter. Not too surprisingly, a lot of them have very similar names, like 'Prime Focus' or 'The Reflector'. Put together by volunteers, some of these newsletters are first rate publications. I've seen some that have full color layouts and typesetting like a magazine you could buy off the rack. Continue Reading

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      • Contact Us
    • The People
      • Officers & Section Leaders
      • Staff
      • Website User Directory
      • Honors & Awards
      • In Memoriam
    • Outreach
      • Presentation Library
      • Writers Bureau
      • Speakers Bureau
    • 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
      • Make a Contribution
      • Funds
      • Amazon.com
      • Benefactors
    • AAVSO Store
    • Citizen Sky Project
  • Community
    • Meetings
    • Discussion Groups & Email Lists
    • Online Forums
      • Getting Started with the AAVSO
      • Foro de Discusión de AAVSO en Español
      • AAVSO Sightings
      • AAVSOnet
      • VPHOT
      • President's Forum
      • Software Development
      • LPVs
      • 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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