Alert Notice 717: Flaring of blazar S5 1803+78 continues
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
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
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: Additional HST observations may be scheduled, so please continue obtaining 2-3 V snapshots per week. When a decision is made about any further HST observations (and consequent cadence changes), that information will be communicated via the forum threads for this campaign. Please be sure to subscribe to stay informed! - Elizabeth O. Waagen, 1 October 2020
Note: The HST observations of TCP-J21040470+4631129 have been scheduled for
Sep 12, 2020 07:16:37 to 13:07:28 UT
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
July 17, 2020
AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Time Sensitive Alerts: https://www.aavso.org/pnv-j17580848-3005376-possible-nova-10-mag-sagittarius
- Novae: https://www.aavso.org/pnv-j17580848-3005376-nova-sgr-2020-no-3
Note: Nova Ret 2020 has been assigned the GCVS name YZ Ret. - Elizabeth O. Waagen, 11 August 2020
July 16, 2020
AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Time Sensitive Alerts: https://www.aavso.org/mgab-v207-mag-53-likely-nova-eruption-reticulum-1
- Novae: https://www.aavso.org/mgab-v207-mag-53-likely-nova-eruption-reticulum-0
- Cataclysmic Variables: https://www.aavso.org/mgab-v207-mag-53-likely-nova-eruption-reticulum
Note: This campaign has been concluded as of 28 October 2020, BUT a new campaign from the SAME ASTRONOMER requesting coverage of the SAME TARGET is announced in AAVSO Alert Notice 723. - Elizabeth O. Waagen, 28 October 2020
July 14, 2020
Each variable star observation in the AID contains a field that specifies the band (filter) used in making the observation.
For data downloaded from the AID using the data-download tool, the band is given as an abbreviation (e.g., visual is Vis, Johnson V is V).
In special cases, the band (e.g. visual) may be represented as a number (e.g., 0). The following numbers represents the following bands:
July 2, 2020
AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Time Sensitive Alerts: https://www.aavso.org/2020nvb-possible-supernova-131-mag-ngc-4457
- Cataclysmic Variables: https://www.aavso.org/sn-2020nvb-ngc-4457
Observers are encouraged to participate in the AAVSO forums listed above for this event, and to visit the AAVSO CV Section webpage.