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Alert Notice 693: V582 Mon monitoring requested

January 24, 2020

AAVSO Forum threads (scroll to the bottom of a thread for latest posts):
  -   Campaigns and Observing Reports: https://www.aavso.org/v582-mon-campaign-2020
  -   Young Stellar Objects: https://www.aavso.org/v582-mon-campaign-2020-01

Solar Bulletin - Volume 75, Number 12

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

 

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

 

Alert Notice 689: R Aqr monitoring needed in support of HST and Chandra observations

Note: The exact schedules for the Chandra and HST observations of R Aqr (Alert Notice 689) are as follow:

Chandra (UT)  Note that this date is EARLIER than given in Alert Notice 689.
12 Jan 2020 00:13:21.409 - 12 Jan 2020 14:06:41

HST (times are UT)
13 Jan 2020 03:54:33 - 13 Jan 2020 04:48:21
13 Jan 2020 08:40:40 - 13 Jan 2020 09:34:54
14 Jan 2020 02:09:47 - 14 Jan 2020 03:58:31

- Elizabeth O. Waagen, 10 January 2020

JAAVSO volume 47, number 2, December 2019, print version now available

eJAAVSO

The Journal of the American Association of Variable Star Observers
Volume 47, Number 2, 2019

The printed version of this issue is now available from Amazon via the link below.

Volume 47, Number 2; 2019

JD Calendar for 2020

The 2020 Julian Day Calendar is now available for download.

HAPPY NEW YEAR!

 

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