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COS
Title
Posted By
Updated/commented date
Type
Special Notice #308: Observations crucial starting tonight for FL Psc (ASAS J002511+1217.2)
weo
27 weeks 1 day
ago
Page
Special Notice #330: Next HST/COS targets are IR Com and BB Dor
weo
15 weeks 5 days
ago
Page
Special Notice #353: SDSS J153817.35+512338.0 obs crucial now and DT Oct is next
weo
1 week 3 days
ago
Page
Special Notice #304: HST COS observations of SDSS J001153.08-064739.1 scheduled
weo
29 weeks 23 hours
ago
Page
Special Notice #327: HST/COS observations scheduled for U Gem
weo
16 weeks 6 days
ago
Page
Special Notice #350: 1RXS J105010.3-140431 and SDSS J153817.35+512338.0 next HST/COS targets
weo
3 weeks 1 day
ago
Page
Special Notice #297: HST COS observations of SDSS J164248.52+134751.4 scheduled
weo
32 weeks 5 days
ago
Page
Special Notice #322: CU Vel is next HST COS target
weo
18 weeks 2 days
ago
Page
Special Notice #346: RZ Leo observations critical now for HST/COS and IU Leo next target
weo
6 weeks 2 days
ago
Page
Alert Notice 475: Monitoring of the dwarf nova U Geminorum in support of HST observations
weo
21 weeks 5 days
ago
Page
Special Notice #342: PU CMa, then IY UMa and MR UMa next HST/COS targets
weo
9 weeks 2 days
ago
Page
Special Notice #314: HST COS scheduled to observe V405 Peg December 7
weo
24 weeks 21 hours
ago
Page
Special Notice #339: V406 Vir (SDSS J123813.73-033932.9) HST/COS observations early tomorrow
weo
11 weeks 6 days
ago
Page
Special Notice #309: Next Set of HST COS targets announced
weo
26 weeks 1 day
ago
Page
Special Notice #332: Observations of IR Com crucial now through February 8
weo
15 weeks 1 day
ago
Page
Special Notice #354: DT Oct obs crucial now, GW Lib and V1108 Her next targets
weo
19 hours 15 min
ago
Page
Special Notice #305: HST COS observations of FL Psc (ASAS J002511+1217.2) scheduled
weo
28 weeks 17 min
ago
Page
Special Notice #328: HST/COS observing U Gem 2013 January 30
weo
16 weeks 1 day
ago
Page
Special Notice #351: 1RXS J105010.3-140431 obs crucial now and upcoming targets
weo
2 weeks 15 hours
ago
Page
Special Notice #298: Second set of HST COS CV targets announced
weo
32 weeks 5 days
ago
Page
Special Notice #324: LT Eri (SDSS J040714.78-064425.1) is next HST COS target
weo
17 weeks 2 days
ago
Page
Special Notice #348: QZ Lib observations critical now for HST/COS and SDSS J154453.60+255348.8 next target
weo
4 weeks 3 days
ago
Page
Special Notice #319: HST COS observing SDSS J093249.57+472523.0 2013 January 11-12
weo
19 weeks 5 days
ago
Page
Special Notice #344: IY UMa and MR UMa next HST/COS targets
weo
8 weeks 2 days
ago
Page
Special Notice #315: HST COS observing SDSS J075507.70+143547.6 December 13-14 and HS 0218+3229 is next target
weo
22 weeks 5 days
ago
Page
Special Notice #340: HST/COS observations 2013 March 8 and March 9
weo
11 weeks 21 hours
ago
Page
Special Notice #311: HST COS to observe CW Mon 2012 November 30 - December 1
weo
26 weeks 1 day
ago
Page
Special Notice #336: Next three HST/COS CV campaign targets
weo
14 weeks 1 day
ago
Page
Special Notice #307: Observations crucial tonight for SDSS J001153.08-064739.1
weo
27 weeks 6 days
ago
Page
Special Notice #329: Critical time for CV Campaign HST/COS target SDSS J100515.38+191107.9
weo
16 weeks 1 day
ago
Page
Special Notice #352: Correction to target name in Special Notice #351
weo
2 weeks 15 hours
ago
Page
Special Notice #302: HST COS observations of 1RXS J023238.8-371812 scheduled
weo
30 weeks 20 hours
ago
Page
Special Notice #326: Next HST/COS target is SDSS J100515.38+191107.9
weo
16 weeks 6 days
ago
Page
Special Notice #349: HST/COS Observations CANCELLED for SDSS J154453.60+255348.8
weo
3 weeks 1 day
ago
Page
Alert Notice 471: Cataclysmic variables to be monitored for HST observations
weo
12 weeks 6 days
ago
Page
Special Notice #321: Observations critical tonight for SDSS J093249.57+472523.0
weo
18 weeks 6 days
ago
Page
Special Notice #345: MR UMa observations needed now and RZ Leo next HST/COS target
weo
6 weeks 2 days
ago
Page
Special Notice #317: HST COS observing HS 0218+3229 2012 December 22 and SDSS J093249.57+472523.0 is probable next target
weo
21 weeks 6 days
ago
Page
Special Notice #341: V485 Cen observations crucial tonight through Sunday night
weo
9 weeks 6 days
ago
Page
Special Notice #313: HST COS observing CW Mon tonight and V405 Peg is next target
weo
24 weeks 5 days
ago
Page
1
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last »
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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