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News and Announcements
Monday, February 12, 2018 - 19:28
Alert Notice 615: ASASSN-18ca = PNV J00423439+4044255 - Probable Nova in M31
Monday, February 12, 2018 - 16:20
Alert Notice 614 : Monitoring of GW Lib to support XMM-Newton observation
Monday, February 12, 2018 - 16:17
Solar Bulletin - Volume 74, Number 1
Wednesday, January 31, 2018 - 15:56
Alert Notice 613: Nova Cir 2018 - PNV J13532700-6725110
Wednesday, January 31, 2018 - 15:45
Alert Notice 612: Nova Sco 2018 - PNV J17180658-3204279
Wednesday, January 31, 2018 - 15:32
LPV of the Month February, 2018
Friday, January 26, 2018 - 18:19
Alert Notice 611: Flaring of Blazar 3C 279
Friday, January 26, 2018 - 09:29
Alert Notice 610: Anticipated primary eclipse of b Persei by the third star
Tuesday, January 16, 2018 - 14:37
Solar Bulletin - Volume 73, Number 12
Monday, January 15, 2018 - 14:36
Alert Notice 609: Nova Muscae 2018 - PNV J11261220-6531086
Thursday, January 4, 2018 - 06:23
PEP Observer's Guide now in French
Friday, December 29, 2017 - 13:28
LPV of the Month January, 2018
Thursday, December 28, 2017 - 11:40
AAVSO Newsletter 75 online
Thursday, December 28, 2017 - 11:19
JAAVSO volume 45, number 2, December 2017, print version now available
Friday, December 15, 2017 - 15:53
JAAVSO Volume 45 Number 2 2017 is published
Friday, December 15, 2017 - 12:17
Solar Bulletin - Volume 73, Number 11
Thursday, December 14, 2017 - 10:06
Solar Observing Guide in German
Monday, December 4, 2017 - 10:03
2018 JD Calendar is now available
Friday, December 1, 2017 - 18:35
Alert Notice 608: TT Ari monitoring requested for VLA observations
Friday, December 1, 2017 - 12:19
Alert Notice 607: MASTER OT J132104.04+560957.8 photometry urgently needed for XMM observations
Friday, November 17, 2017 - 13:00
Alert Notice 606: Observing campaign on nova in Vela - ASASSN-17mt
Wednesday, November 15, 2017 - 14:45
Solar Bulletin - Volume 73, Number 10
Tuesday, November 14, 2017 - 16:44
Alert Notice 605: Nova in Ophiuchus - PNV J17184504-2454221
Thursday, November 2, 2017 - 12:58
Solar Observing Guide update
Tuesday, October 31, 2017 - 11:39
Alert Notice 604: CI Aql observations must be reported by 14:45 UT 2017 November 1
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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: Officers and Members
Staff
Section Leaders
Honors & Awards
In Memoriam
Outreach
Presentation Library
The Location
AAVSO Headquarters
Directions
Guest Suite
Our Publications
Annual Report
Journal of the AAVSO
AAVSO Alert Notice
AAVSO Newsletter
Visual Observing Manual
CCD Photometry Guide
DSLR Observing Manual
Solar Bulletin
plus many more...
Apply for Membership
Renew Membership
Community
Meetings
Forums
Find a Member/Observer
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 Institute
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
Alert Notices & Observing Campaigns
Observing Manuals
Visual Observing Manual
CCD Photometry Guide
DSLR Observing Manual
Exoplanet Observing Guide
PEP Observer's Guide
Solar Observing Guide
WebObs (Search AID or Submit Your Data)
Variable Star Charts
Variable Star Plotter (VSP)
Report Chart Errors
Request Comparison Stars
AAVSO Target Tool
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 (LCGv2)
Light Curve Generator (LCGv1)
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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