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Solar Bulletin and SID reports: 2020
Recommended CCD sensor today?
Welcome to the New Section: Instrumentation and Equipment
Bright Giant Variables campaign from 2011 - ongoing
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Most eccentric EA system ever? PW Gem
ASI178MM Bit depth,Gain question
AstroArt7 stacking
OC61 Transformation Coefficients
Campaign for LPV maser study
16-bit CMOS upgrade - best choice for photometry? (IMX 455)
Observations of Blazar S5 1803+78 critically needed
BSM_S2?
LPV Webinar - Miras from an Astrophysical Standpoint
ASASSN-20ga: highly reddened galactic classical nova in Sagittarius
ASASSN-20ga: highly reddened galactic classical nova in Sagittarius
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Annual Report
Journal of the AAVSO
AAVSO Newsletter
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 Variable Stars: A Guide for Beginners
Educational Materials
CHOICE Online Institute
CCD School Videos
Student Projects
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
Charge-Coupled Device (CCD) Camera Photometry Guide
Digital Single Lens Reflex (DSLR) Camera Observing Manual
Exoplanet Observing Guide
PEP Observer's Guide
Solar Observing Guide
AAVSO Guide to Getting Started in Spectroscopy
WebObs (Search AID or Submit Your Data)
Variable Star Charts
Variable Star Plotter (VSP)
Report Chart Errors
Request Comparison Stars
Chart and Sequence Updates
AAVSO Target Tool
Observation Planner Tool
JD Calculator & Calendar
Software Directory
Data
For researchers: support and data access
AAVSO International Database (AID)
WebObs (Submit/Search Data)
Exoplanet Database
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
Historic Light Curves
The AAVSO Photometric All-Sky Survey (APASS)
AAVSOnet Epoch Photometry Database
AAVSOnet
Eggen Card Project
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)
Observing Sections
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