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News and Announcements
Tuesday, April 24, 2018 - 14:28
Alert Notice 631: Coverage requested for current outburst of AG Dra
Monday, April 16, 2018 - 15:59
Solar Bulletin - Volume 74, Number 03
Wednesday, April 11, 2018 - 12:46
Alert Notice 630: Coverage needed TONIGHT for ASASSN-18ey = MAXI J1820+070
Wednesday, April 11, 2018 - 11:54
Alert Notice 629: Nova in Sagittarius - N Sgr 2018 = PNV J18040967-1803581
Monday, April 2, 2018 - 15:14
AAVSO Newsletter 76 online
Monday, April 2, 2018 - 13:07
LPV of the Month April, 2018
Thursday, March 29, 2018 - 14:16
Alert Notice 628: HST observations scheduled for SDSS J153817.35+512338.0
Monday, March 26, 2018 - 15:18
Alert Notice 627: Nova in Canis Major - N CMa 2018 = TCP J07134590-2112330
Friday, March 23, 2018 - 14:47
AAVSO Annual Report for 2016-2017 online
Thursday, March 22, 2018 - 12:28
Solar Observing Guide in Portuguese
Wednesday, March 21, 2018 - 19:20
Alert Notice 626: Bright nova in Carina - ASASSN-18fv
Wednesday, March 21, 2018 - 15:08
Alert Notice 625: ASASSN-18ey = MAXI J1820+070 coverage needed for VLT and XMM
Monday, March 19, 2018 - 08:03
Alert Notice 624: Observations requested for ASASSN-18ey = MAXI J1820+070
Friday, March 16, 2018 - 16:20
Solar Bulletin - Volume 74, Number 2
Friday, March 16, 2018 - 14:59
Alert Notice 623: Observations of V1017 Sgr requested
Thursday, March 15, 2018 - 16:00
Alert Notice 622: N Oph 2018 No. 2 = TCP J17140253-2849233 = PNV J17140261-2849237
Thursday, March 15, 2018 - 14:01
Alert Notice 621: Optical monitoring of NSV 24045 = HD 163296
Wednesday, March 14, 2018 - 18:26
Alert Notice 620: Coverage of Nova LMC 1996 (OGLE-2018-NOVA-01) outburst needed now
Friday, March 9, 2018 - 16:00
Solar Observing Guide in Italian
Tuesday, March 6, 2018 - 14:48
Alert Notice 619: Nova Ophiuchi 2018 = PNV J17244011-2421463
Monday, March 5, 2018 - 16:38
Alert Notice 618: Monitoring SDSS J153817.35+512338.0 for HST observations
Monday, March 5, 2018 - 13:00
Alert Notice 617: Multiwavelength observations of YZ Cnc, SU UMa, and CR Boo outbursts
Thursday, March 1, 2018 - 09:52
LPV of the Month March, 2018
Tuesday, February 27, 2018 - 16:49
AAVSO Bulletin 81 for 2018 published
Wednesday, February 21, 2018 - 17:01
Solar Observing Guide in Spanish
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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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