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Title
Posted By
Updated/commented date
Type
Special Notice #326: Next HST/COS target is SDSS J100515.38+191107.9
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17 weeks 1 day
ago
Page
AAVSO Alert Notice 435
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1 year 9 weeks
ago
Page
Special Notice #286: Revised Timetable for June AE Aqr MAGIC Observations
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50 weeks 6 hours
ago
Page
AAVSO Alert Notice 440
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2 years 2 days
ago
Page
AAVSO Special Notice #213
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2 years 42 weeks
ago
Page
Special Notice #345: MR UMa observations needed now and RZ Leo next HST/COS target
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6 weeks 4 days
ago
Page
Special Notice #291: Brightening of LBV HDE 269006 = R71
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43 weeks 1 day
ago
Page
AAVSO Bulletin 74 for 2011
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1 year 12 weeks
ago
Page
Special Notice #349: HST/COS Observations CANCELLED for SDSS J154453.60+255348.8
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3 weeks 3 days
ago
Page
AAVSO Alert Notice 427
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2 years 16 weeks
ago
Page
Special Notice #324: LT Eri (SDSS J040714.78-064425.1) is next HST COS target
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17 weeks 4 days
ago
Page
Alert Notice 459: Monitoring of RU Peg requested for Swift observations
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50 weeks 2 days
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Page
Special Notice #309: Next Set of HST COS targets announced
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26 weeks 3 days
ago
Page
Alert Notice 481: Nova Survey participation requested
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9 weeks 3 days
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AAVSO Alert Notice 424
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2 years 36 weeks
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4 weeks 4 days
ago
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Alert Notice 456: Monitoring of V854 Cen Requested
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1 year 7 weeks
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Special Notice #285: Outburst of old nova X Ser
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51 weeks 1 day
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Special Notice #335: Revised Coordinates for GR Ori (Nova Ori 1916)
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14 weeks 3 days
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Special Notice #278: Bright flaring of Blazar OJ 287
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1 year 4 weeks
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AAVSO Alert Notice 439
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2 years 3 weeks
ago
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Special Notice #307: Observations crucial tonight for SDSS J001153.08-064739.1
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28 weeks 1 day
ago
Page
AAVSO Alert Notice 430
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2 years 19 weeks
ago
Page
Special Notice #341: V485 Cen observations crucial tonight through Sunday night
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10 weeks 1 day
ago
Page
Special Notice 257: Reminder to observe V455 And for HST observations
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1 year 34 weeks
ago
Page
Alert Notice 454: Monitoring of CH Cyg requested for Chandra and HST observations
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1 year 11 weeks
ago
Page
AAVSO Special Notice #222
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2 years 28 weeks
ago
Page
Special Notice #321: Observations critical tonight for SDSS J093249.57+472523.0
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19 weeks 1 day
ago
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1 year 8 weeks
ago
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Special Notice #284 - NOVA OPHIUCHI 2012 No. 2 = PNV J17395600-2447420
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51 weeks 1 day
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Special Notice #299: Observations needed TODAY of SDSS J164248.52+134751.4
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32 weeks 2 days
ago
Page
Special Notice #332: Observations of IR Com crucial now through February 8
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15 weeks 2 days
ago
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Alert Notice 446 - SUPERNOVA 2011fe in M101 (NGC 5457) = PSN J14030581+5416254
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1 year 38 weeks
ago
Page
AAVSO Alert Notice 429
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2 years 19 weeks
ago
Page
Alert Notice #480: MR UMa superoutburst coverage requested for HST observations
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11 weeks 5 hours
ago
Page
Special Notice #289: Bright possible nova in Sagittarius = PNV J18202726-2744263
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45 weeks 1 day
ago
Page
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1 year 36 weeks
ago
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AAVSO Alert Notice 423
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2 years 38 weeks
ago
Page
Special Notice #346: RZ Leo observations critical now for HST/COS and IU Leo next target
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6 weeks 4 days
ago
Page
AAVSO Eclipsing Binary Ephemeris for 2011 available
weo
1 year 50 weeks
ago
Page
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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 Members, Officers & Section Leaders
Staff
Honors & Awards
In Memoriam
Outreach
Presentation Library
Writers Bureau
Speakers Bureau
The Location
AAVSO Headquarters
Directions
Guest Suite
Our Publications
Annual Report
The Journal of the AAVSO
Alert and Special Notices
AAVSO Newsletter
Visual Observing Manual
CCD Observing Manual
Solar Bulletin
plus many more...
Apply for Membership
Renew Membership
Support the AAVSO
Funds
Amazon.com
Benefactors
AAVSO Store
Citizen Sky Project
Community
Meetings
Forums
Live Chat Room
Staff Blog
Social Media
Variable Stars
What Are They & Why Observe Them?
The Stories Variables Tell
Types of Variables
Variable Star of the Season
Education Materials
CHOICE Online Institute
Science Olympiad
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
Observing Manuals
Visual Observing Manual
CCD Photometry Manual
DSLR Photometry Manual
Alert and Special Notices
Observing Campaigns
WebObs (Search AID or Submit Your Data)
Variable Star Charts
Variable Star Plotter (VSP)
Report Chart Errors
Request Comparison Stars
Observation Planner Tool
JD Calculator & Calendar
Software Directory
Data
AAVSO International Database (AID)
Portal for Researchers
Historic Light Curves
WebObs (Submit/Search Data)
Data Access
Download Data in Ascii Form
Light Curve Generator (LCG)
MyNewsFlash - Real-Time Data Delivery
WebObs Search (Searches AID)
Data Analysis
VPHOT - Online Photometry Tool
Zapper - Help Validate Data
VStar - Java Visualization & Analysis Tool
The AAVSO Photometric All-Sky Survey (APASS)
AAVSOnet
Getting Started
What Are Variable Stars?
Things to Do
Find a Mentor
Online Forum for Help and Advice
Star Tutorials
10-Star Tutorial (Visual Observations of Variable Stars)
5-Star Tutorial (Data Analysis)
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