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News and Announcements
Thursday, February 26, 2015 - 17:47
AAVSO Bulletin 78 for 2015 published
Thursday, February 26, 2015 - 13:49
Landolt Standards and 21st Century Photometry
Wednesday, February 18, 2015 - 15:53
Alert Notice 509: Nova Sagittarii 2015 = PNV J18142514-2554343 [V5667 Sgr]
Tuesday, February 17, 2015 - 15:58
Alert Notice 508: Nova Scorpii 2015 == PNV J17032620-3504140 [V1535 Sco]
Friday, February 13, 2015 - 13:03
Special Notice #398: Bright Transient in Sgr (PNV J18142514-2554343) [V5667 Sgr]
Thursday, February 12, 2015 - 10:08
CCD Photometry Guide update
Wednesday, February 11, 2015 - 23:57
Special Notice #397: Bright Transient in Sco (PNV J17032620-3504140) [V1535 Sco]
Monday, February 9, 2015 - 16:05
Campaign highlight: b Persei
Friday, January 23, 2015 - 10:09
Charts and Sequences Update January 2015
Wednesday, January 21, 2015 - 15:19
AAVSO Newsletter for January 2015 is published
Tuesday, January 20, 2015 - 10:27
New eJAAVSO preprint: An eclipsing symbiotic nova in outburst?
Monday, January 19, 2015 - 10:38
Special Notice #396: Blazar PKS 0716+71 in very bright outburst
Monday, January 19, 2015 - 09:34
Two new eJAAVSO preprints: Maxima of 67 SPPs; Longterm monitoring of semiregulars
Friday, January 16, 2015 - 16:36
Special Notice #395: Alpha Com campaign cancelled
Wednesday, January 14, 2015 - 14:15
Solar Bulletin - Volume 70, Number 12
Wednesday, January 14, 2015 - 12:11
New eJAAVSO preprint: Revised elements of 78 southern EB systems
Monday, January 12, 2015 - 12:25
Special Notice #394: Observations of b Persei urgently requested
Wednesday, January 7, 2015 - 11:44
JAAVSO Vol. 42, No. 2, 2014 printed copies available
Tuesday, January 6, 2015 - 14:19
Alert Notice 507: Observations of the eclipsing binary b Persei
Sunday, January 4, 2015 - 20:42
2016 CHOICE Course Schedule
Tuesday, December 30, 2014 - 11:45
The last fundraising letter
Monday, December 15, 2014 - 16:19
Solar Bulletin - Volume 70, Number 11
Thursday, December 11, 2014 - 16:28
JAAVSO Vol. 42, No. 2, 2014 is published
Thursday, December 11, 2014 - 15:03
Special Notice #393: Correction to Special Notice #392 [ASASSN-14lp]
Thursday, December 11, 2014 - 12:42
Special Notice #392: ASASSN-14lp = Type Ia Supernova in NGC 4666 (Virgo)
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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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