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Light Curve of the Week

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H-R Diagram Education Materials

H-R Diagram Education Materials

A new plotting activity is perfect for educators and anyone else interested in an introduction to pulsating variable stars.

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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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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
 
 
  • 2013 Spring Meeting Site Proposals Wanted - Due March 1st! Feb 21
  • A BVRcIc Survey of W Ursae Majoris Systems Feb 17
  • H-R Diagram Education Materials Feb 17
  • Solar Bulletin - Volume 68, Number 1 Feb 13
  • AAVSO CCD School Feb 8
  • Alert Notice 452: Simultaneous observations of SU Aur and AB Aur... Feb 8
  • Accounting Clerk Wanted for p/t Position at AAVSO HQ Feb 7
News Archives

Variable Star Observations in Database:

21,380,581 and Counting ...
Last Observation Received:

28 min 27 sec ago by MALB - Alexandr Maidik (Ukraine)

RHO CAS    Feb 23.1180    4.6Vis.    

 
 

Blog: From the Staff

Dateline: Guam, 1941

Aaron Price
By Aaron Price - February 14, 2012 - 2:18pm

A special membership application is uncovered in the AAVSO archives. Continue Reading

The Kruta Telescope - A Labor of Love

SXN
By SXN - February 6, 2012 - 11:00am

If you've ever been to AAVSO headquarters, you've probably seen a small Maksutov telescope in a clear plastic case sitting on a shelf or cabinet in the front office. Its an unassuming table top scope on a little fork mount that looks more like a curiosity than a scientific instrument. If you're like me you probably wondered for about two seconds where it came from and what the story is behind it, and then never gave it another thought. Continue Reading

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

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      • The AAVSO Archives
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    • 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
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      • 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
      • AAVSOnet
      • VPHOT
      • 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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