Affiliation
American Association of Variable Star Observers (AAVSO)
Mon, 04/02/2018 - 19:57
The April 2018 edition of the AAVSO Newsletter is online. If you are an AAVSO member, you may download it immediately from here. If you are not a member, it will be available to you when the next issue (July 2018) is published.
Good reading!
Elizabeth Waagen, AAVSO HQ