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The August Solar Bulletin is now available. Please visit the Solar Bulletin web page to download your copy: https://www.aavso.org/solar-bulletin

The August SID Data report is available at https://www.aavso.org/sid-database

September 13, 2020

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observation Reports: https://www.aavso.org/ss-cyg-campaign
- Cataclysmic Variables: https://www.aavso.org/ss-cyg-campaign-01

CH Cygni

By Rich Roberts

August 26, 2020

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observation Reports: https://www.aavso.org/asas-j190559-21094-campaign

Please subscribe to this thread if you are participating in the campaign so you can be updated by the astronomer and by HQ. Join in the discussion or ask questions there!

August 26, 2020

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observation Reports: https://www.aavso.org/aquila-x-1-v1333-aql-2020-august-outburst-01
- Time Sensitive Alerts: https//www.aavso.org/aquila-x-1-v1333-aql-2020-august-outburst

August 17, 2020

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- High Energy Network (HEN): https://www.aavso.org/observations-blazar-s5-180378-critically-needed

Please subscribe to this thread if you are observing this object so you can be updated as to its behavior and any observing campaigns on it. Join in the discussion or ask questions there!

August 14, 2020

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observing Reports: https://www.aavso.org/five-t-tau-stars-XMM-campaign
- Young Stellar Objects: https://www.aavso.org/five-t-tau-stars-XMM-campaign-0

August 13, 2020

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Time Sensitive Alerts: https://www.aavso.org/tcp-j001142976611190-galactic-classical-fe-ii-nova-13-mag-cassiopeia-0
- Novae: https://www.aavso.org/tcp-j001142976611190-galactic-classical-fe-ii-nova-13-mag-cassiopeia

Note: The HST observations of TCP-J21040470+4631129 have been scheduled for

Sep 12, 2020 07:16:37 to 13:07:28 UT

For the HST observations to take place, it is essential to have a positive observation 24 hours before this time showing the system in quiescence, so the night of September 10-11 UT is crucial.  -  Elizabeth O. Waagen, 31 August 2020

August 6, 2020

Note: The table of Observations submitted to the AAVSO was replaced to correct errors in this table in the original version of the Alert Notice.  -  Elizabeth O. Waagen, 3 August 2020

August 3, 2020