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Title
Posted By
Updated/commented date
Type
Alert Notice #480: MR UMa superoutburst coverage requested for HST observations
weo
10 weeks 4 days
ago
Page
Special Notice #289: Bright possible nova in Sagittarius = PNV J18202726-2744263
weo
44 weeks 5 days
ago
Page
Special Notice 255: Cataclysmic Variable in Draco = PNV J18422792+4837425
weo
1 year 35 weeks
ago
Page
AAVSO Alert Notice 423
weo
2 years 37 weeks
ago
Page
Alert Notice 454: Monitoring of CH Cyg requested for Chandra and HST observations
weo
1 year 11 weeks
ago
Page
Special Notice #319: HST COS observing SDSS J093249.57+472523.0 2013 January 11-12
weo
19 weeks 4 days
ago
Page
Special Notice #270: Possible Recurrent Nova in the LMC = TCP J04550000-7027150
weo
1 year 7 weeks
ago
Page
Special Notice #353: SDSS J153817.35+512338.0 obs crucial now and DT Oct is next
weo
1 week 1 day
ago
Page
Special Notice #297: HST COS observations of SDSS J164248.52+134751.4 scheduled
weo
32 weeks 3 days
ago
Page
Special Notice #330: Next HST/COS targets are IR Com and BB Dor
weo
15 weeks 3 days
ago
Page
AAVSO Alert Notice 437
weo
2 years 1 week
ago
Page
Special Notice #304: HST COS observations of SDSS J001153.08-064739.1 scheduled
weo
28 weeks 6 days
ago
Page
Special Notice #339: V406 Vir (SDSS J123813.73-033932.9) HST/COS observations early tomorrow
weo
11 weeks 4 days
ago
Page
Alert Notice 448: Request for observations of V455 AND in support of HST observations
weo
1 year 36 weeks
ago
Page
AAVSO Special Notice #215
weo
2 years 38 weeks
ago
Page
Special Notice #346: RZ Leo observations critical now for HST/COS and IU Leo next target
weo
6 weeks 19 hours
ago
Page
AAVSO Eclipsing Binary Ephemeris for 2011 available
weo
1 year 49 weeks
ago
Page
Special Notice #351: 1RXS J105010.3-140431 obs crucial now and upcoming targets
weo
1 week 5 days
ago
Page
Special Notice #282: Apparent fading of V854 Cen
weo
52 weeks 17 hours
ago
Page
Alert Notice 471: Cataclysmic variables to be monitored for HST observations
weo
12 weeks 5 days
ago
Page
AAVSO Centennial Calendar for 2011
weo
2 years 19 weeks
ago
Page
Special Notice #327: HST/COS observations scheduled for U Gem
weo
16 weeks 4 days
ago
Page
Special Notice #264: SUPERNOVA 2012A IN NGC 3239 = PSN J10250739+1709146
weo
1 year 17 weeks
ago
Page
Special Notice #338: HM Leo HST/COS observations tomorrow; V406 Vir is next target
weo
12 weeks 4 days
ago
Page
AAVSO Special Notice #214
weo
2 years 42 weeks
ago
Page
Special Notice #312: Supernova 2012gx in MCG -02-2-72 = PSN J00380175-1351395
weo
24 weeks 6 days
ago
Page
AAVSO Bulletin 75 for 2012
weo
12 weeks 6 days
ago
Page
AAVSO Special Notice #231
weo
2 years 15 weeks
ago
Page
Alert Notice 482: Monitoring requested for dust production study in developing planetary systems
weo
6 weeks 5 days
ago
Page
Alert Notice 466: Monitoring of V380 Oph requested in support of HST observations
weo
38 weeks 6 days
ago
Page
Special Notice #267: HST observations of CH Cyg scheduled and monitoring urgently needed
weo
1 year 9 weeks
ago
Page
Special Notice #350: 1RXS J105010.3-140431 and SDSS J153817.35+512338.0 next HST/COS targets
weo
2 weeks 6 days
ago
Page
Special Notice #281: Revised timetable for AE Aqr MAGIC observations
weo
1 year 6 days
ago
Page
AAVSO Special Notice #244: Continued close monitoring of T Pyx requested
weo
1 year 46 weeks
ago
Page
Special Notice #295: Bright outburst of the BL Lac object PKS 0716+71
weo
35 weeks 6 hours
ago
Page
Special Notice #325: BB Dor monitoring requested for Swift and HST observations
weo
17 weeks 22 hours
ago
Page
Alert Notice 457: Monitoring Nova Oph 2012 for multiwavelength observations
weo
1 year 5 weeks
ago
Page
Special Notice #251: Possible transient in Scorpius
weo
1 year 36 weeks
ago
Page
Special Notice #310: Continued observing of V452 Cas requested
weo
26 weeks 5 days
ago
Page
Special Notice #344: IY UMa and MR UMa next HST/COS targets
weo
8 weeks 1 day
ago
Page
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About Us
The Organization
Vision/Mission
What We Do
Services
Work & Research
Volunteer
History
The AAVSO Archives
By-Laws
Contact Us
The People
Council Members, Officers & Section Leaders
Staff
Honors & Awards
In Memoriam
Outreach
Presentation Library
Writers Bureau
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
Renew Membership
Support the AAVSO
Funds
Amazon.com
Benefactors
AAVSO Store
Citizen Sky Project
Community
Meetings
Forums
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
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
JD Calculator & Calendar
Software Directory
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)
5-Star Tutorial (Data Analysis)
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