XX Oph spectra screenshot
Dr. Steven Howell's XX Oph spectra screen shot 2023-07-17
XX Oph
Alert Notice 819: XX Oph and V5569 Sgr photometry needed in support of spectroscopic observations
Note: Text and forum links edited per request of Dr. Howell. - Elizabeth O. Waagen, April 21, 2023
April 13, 2023
AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
- Campaigns and Observing Reports: https://www.aavso.org/xx-oph-v5569-sgr-campaign
- Eclipsing Binaries: https://www.aavso.org/xx-oph-v5569-sgr-campaign-01