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News and Announcements
Wednesday, November 7, 2018 - 14:26
Alert Notice 656: Chandra observation date revised for XZ Tau and HL Tau
Thursday, November 1, 2018 - 09:43
LPV of the Month November, 2018
Tuesday, October 30, 2018 - 14:31
Alert Notice 655: Anticipated secondary eclipse of b Persei by its third star in November 2018
Monday, October 29, 2018 - 16:59
Alert Notice 654: XZ Tau and HL Tau monitoring needed for Chandra observations
Friday, October 26, 2018 - 15:43
Alert Notice 653: Nova in Norma: N Nor 2018 = PNV J16143400-5330050
Wednesday, October 17, 2018 - 13:38
Solar Bulletin - Volume 74, Number 09
Monday, October 15, 2018 - 13:16
Gaia plugin for VStar
Thursday, October 11, 2018 - 15:44
Alert Notice 652: Monitoring of nova-like variables in support of Chandra observations
Monday, October 1, 2018 - 16:49
AAVSO Newsletter 78 is now online
Monday, October 1, 2018 - 11:29
AAVSO seeking an Editor for the Journal of the American Association of Variable Star Observers (JAAVSO)
Friday, September 28, 2018 - 12:13
Charts and Sequences Update - September 2018
Thursday, September 27, 2018 - 17:11
Alert Notice 651: Monitoring of T Pyx needed for HST observations
Friday, September 14, 2018 - 15:06
Alert Notice 650 - REVISED: Photometry and spectroscopy of more symbiotic candidates requested
Friday, September 14, 2018 - 14:48
Solar Bulletin - Volume 74, Number 08
Friday, August 31, 2018 - 15:24
LPV of the Month September, 2018
Friday, August 24, 2018 - 16:47
Alert Notice 649: Dwarf nova outburst of GK Per (N Per 1901)
Tuesday, August 14, 2018 - 16:53
Alert Notice 648: Semiregular variable reclassified as symbiotic: outburst of ASASSN-V J195442.95+172212.6 = Vend47 (Sge)
Tuesday, August 14, 2018 - 10:53
Solar Bulletin - Volume 74, Number 07
Monday, August 13, 2018 - 17:05
Alert Notice 647: Nova in Ophiuchus - N Oph 2018 No. 3 = PNV J17422408-2053088
Monday, August 6, 2018 - 15:09
Alert Notice 646: VW Hyi in outburst and monitoring needed for multiwavelength campaign
Wednesday, August 1, 2018 - 08:58
LPV of the Month August, 2018
Tuesday, July 31, 2018 - 13:22
Alert Notice 645: Monitoring of LPVs for Maser Study
Friday, July 27, 2018 - 17:37
Alert Notice 644: FO Aqr monitoring requested in faint-state study
Wednesday, July 25, 2018 - 14:24
Alert Notice 643: Monitoring for Red Dots #2 campaign
Tuesday, July 24, 2018 - 16:43
Alert Notice 642: ASASSN-18pe observing campaign
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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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