JAAVSO volume 48, number 1, June 2020, print version now available
The Journal of the American Association of Variable Star Observers
Volume 48, Number 1, 2020
The printed version of this issue is now available from Amazon via the link below.
front page news
All nodes that have this tag will posted to the home page "Recent Activity" block
Alert Notice 712: Nova in Sagittarius: N Sgr 2020 No. 3 = PNV J17580848-3005376 [V6568 Sgr]
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
Alert Notice 711: Nova in Reticulum: MGAB-V207 = N Ret 2020 [YZ Ret]
Note: Nova Ret 2020 has been assigned the GCVS name YZ Ret. - Elizabeth O. Waagen, 11 August 2020
July 16, 2020
Solar Bulletin - Volume 76, Number 06
The June Solar Bulletin is now available. Please visit the Solar Bulletin web page to download your copy: https://www.aavso.org/solar-bulletin.
The June SID Data report is available at https://www.aavso.org/sid-database.
Alert Notice 710: Monitoring requested for UXOR ASASSN-V J181654.06-202117.6
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
Alert Notice 709: Supernova in NGC 4457 - SN 2020nvb (= AT 2020nvb = ATLAS20rvf)
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.
Alert Notice 708: Test exposures requested for symbiotic binary candidates
Note: The target table was edited to add the range. - Elizabeth O. Waagen, 18 June 2020
June 17, 2020
AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observation Reports: https://www.aavso.org/test-exposures-for-symbiotic-binary-candidates-campaign
Adrian B. Lucy (Columbia University) requests the assistance of AAVSO observers, and writes:
Alert Notice 707: Campaign Monitoring of the Helium double peak emission at 6678 Å in gamma Cas - Update to Alert Notice 694
Reminder: High-resolution spectroscopy (10,000 or higher) is needed. - Elizabeth O. Waagen, 1 February 2021
June 17, 2020
JAAVSO Volume 48 Number 1, 2020 is published
http://www.aavso.org/apps/jaavso/volumes/
The printed version of this issue will be available soon. Please watch for the announcement on our main web page.
The Journal of the American Association of Variable Star Observers
Volume 48, Number 1, 2020
Articles in This Issue
Alert Notice 706: Nova in Sagittarius: N Sgr 2020 No. 2 = ASASSN-20ga [V6567 Sgr]
Note: N Sgr 2020 No. 2 has been assigned the GCVS name V6567 Sgr. - Elizabeth O. Waagen, 11 August 2020
June 8, 2020