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News and Announcements
Thursday, September 22, 2016 - 17:10
Special Notice #421: SN 2016gkg - Unusual Type-II Supernova in NGC 613 (Scl)
Tuesday, September 20, 2016 - 15:05
Alert Notice 552: Gaia16aye microlensing event monitoring urgently requested
Tuesday, September 20, 2016 - 14:15
Alert Notice 551: GDS_J1701281-430612 monitoring for HST observations
Friday, September 16, 2016 - 14:24
Solar Bulletin - Volume 72, Number 08
Tuesday, September 13, 2016 - 16:07
Special Notice #420: OJ 287 very bright and Subscription reminder
Friday, September 9, 2016 - 18:26
Alert Notice 550: Nova Sco 2016 No. 2 = PNV J17225112-3158349 = ASASSN-16kd
Thursday, September 1, 2016 - 18:39
Alert Notice 549: RX And Chandra observing campaign
Thursday, September 1, 2016 - 12:12
September CHOICE Courses Begin Next Week!
Monday, August 22, 2016 - 11:50
Registration Now Open for Remaining 2016 CHOICE Courses
Thursday, August 18, 2016 - 16:55
Alert Notice 548: AR Sco observing campaign
Monday, August 15, 2016 - 20:00
Solar Bulletin - Volume 72, Number 07
Thursday, August 11, 2016 - 23:21
Alert Notice 547: Nova Sgr 2016 No. 2 = ASASSN-16ig = TCP J18010780-2631434
Tuesday, August 9, 2016 - 14:04
Special Notice #419: V1687 Cyg spectroscopy and sequence and Subscription reminder
Wednesday, August 3, 2016 - 17:05
Alert Notice 546: Campaign on V1687 Cyg (WR 140)
Monday, July 18, 2016 - 11:16
Solar Bulletin - Volume 72, Number 06
Wednesday, July 13, 2016 - 15:32
Alert Notice 545: FO Aqr time-series observations requested
Wednesday, July 13, 2016 - 09:20
Thank you - We passed our Annual Campaign goal!
Tuesday, July 5, 2016 - 12:15
Special Notice #418: RX And monitoring needed for VLA observations
Thursday, June 30, 2016 - 14:50
AAVSO Newsletter Number 69, July 2016, is published
Wednesday, June 22, 2016 - 11:34
Annual Report for 2014-2015 now online
Tuesday, June 14, 2016 - 12:01
JAAVSO Volume 44 Number 1 June 2016 is published
Tuesday, June 14, 2016 - 07:37
Solar Bulletin - Volume 72, Number 05
Monday, June 13, 2016 - 18:22
Alert Notice 544: Nova Scorpii 2016 = PNV J17381927-3725077
Friday, June 3, 2016 - 16:56
Special Notice #417: CH Cygni B and V photometry urgently requested
Wednesday, May 25, 2016 - 15:42
Special Notice #416: Extension to 20 CVs campaign
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About Us
The Organization
Vision/Mission
What We Do
Services
Work & Research
Volunteer
History
The AAVSO Archives
By-Laws
The People
Council: Officers and Members
Staff
Section Leaders
Honors & Awards
In Memoriam
Outreach
Presentation Library
Writers Bureau
Speakers Bureau
The Location
AAVSO Headquarters
Directions
Guest Suite
Our Publications
Annual Report
Journal of the AAVSO
Alert and Special Notices
AAVSO Newsletter
Visual Observing Manual
CCD Photometry Guide
DSLR Observing Manual
Solar Bulletin
plus many more...
Apply for Membership
Renew Membership
Support the AAVSO
Amazon.com
Funds
Benefactors
AAVSO Store
Citizen Sky Project
Community
Meetings
Forums
Find a Member/Observer
Live Chat Room
Social Media
Who's Online
Variable Stars
What Are They & Why Observe Them?
The Stories Variables Tell
Types of Variables
Variable Star of the Season
Educational Materials
CHOICE Online Institutue
CCD School Videos
Student Projects
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 Guide
DSLR Observing 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
Eggen Card Project
WebObs (Submit/Search Data)
Data Access
Download Data in ASCII Form
Light Curve Generator (LCG)
MyNewsFlash - Real-Time Data Delivery
WebObs Search (Search the AID)
Data Analysis
Transformation
VPHOT - Online Photometry Tool
Zapper - Help Validate Data
VStar - Java Visualization & Analysis Tool
The AAVSO Photometric All-Sky Survey (APASS)
AAVSOnet Epoch Photometry Database
AAVSOnet
Getting Started
What Are Variable Stars?
Things to Do
Find a Mentor
Online Forum for Help and Advice
Observing Tutorials
10-Star Tutorial (Visual Observations of Variable Stars)
5-Star Tutorial (Data Analysis)
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