AAVSO Alert Notice 770 requests observations in support of HST observations being carried out on 2022 March 2-3 UT and later in March and April on 4 T Tau stars. These targets are part of Dr. Frederick Walter's ULLYSES program. Please see the notice for details and observing instructions.
There are threads for this campaign under the following forums:
- Campaigns and Observing Reports: https://www.aavso.org/odysseus-viii-southern-targets-marchapril-01
- Young Stellar Objects (YSO): https://www.aavso.org/odysseus-viii-southern-targets-marchapril
Please subscribe to these threads if you are participating in the campaign so you can be updated by the astronomers and by HQ. Join in the discussion or ask questions there!
Many thanks, and Good observing,
Elizabeth O. Waagen, AAVSO HQ
Is the campaign still in…
Hi
Is the campaign still in place and were DI Cha and SY Cha already observed by the HST? Or should we continue to observe these YSO's?
Regards
Andrew
The observations of DI Cha, EL Cha, and SY Cha were apparently completed successfully. Thanks for your contributions.
The HST observing schedule for TW Hya is now posted. Times are in UT.
None of these times are good for observers in South America. But please get what you can - at least one set of BVRI observations per night, and we'll piece together what the star is doing. There is no need to observe after the night of April 10.
Start time: 30 Mar 2022 11:21:23 End time: 30 Mar 2022 12:38:05
Start time: 31 Mar 2022 14:20:44 End time: 31 Mar 2022 15:14:10
Start time: 01 Apr 2022 14:09:34 End time: 01 Apr 2022 15:03:00
Start time: 02 Apr 2022 10:47:52 End time: 02 Apr 2022 11:59:04
Start time: 02 Apr 2022 21:54:40 End time: 02 Apr 2022 22:48:06
Start time: 03 Apr 2022 15:25:12 End time: 03 Apr 2022 16:18:38
Start time: 04 Apr 2022 13:36:17 End time: 04 Apr 2022 14:29:43
Start time: 05 Apr 2022 10:14:37 End time: 05 Apr 2022 11:08:03
Start time: 06 Apr 2022 17:59:45 End time: 06 Apr 2022 18:53:11
Start time: 07 Apr 2022 11:27:35 End time: 07 Apr 2022 12:21:01
Start time: 08 Apr 2022 12:51:43 End time: 08 Apr 2022 13:45:09
Start time: 09 Apr 2022 07:54:49 End time: 09 Apr 2022 08:48:15
Thanks again for all your work.
Fred
AAVSO Alert Notice 774 requests observations in support of HST observations being carried out now on the YSO TW Hya. This target is part of Dr. Frederick Walter's ULLYSES program. Please see the notice for details and observing instructions.
There are threads for this campaign under the following forums:
- Campaigns and Observing Reports: https://www.aavso.org/odysseus-viii-southern-targets-marchapril-01
- Young Stellar Objects (YSO): https://www.aavso.org/odysseus-viii-southern-targets-marchapril
Please subscribe to these threads if you are participating in the campaign so you can be updated by the astronomers and by HQ. Join in the discussion or ask questions there!
Many thanks, and Good observing,
Elizabeth O. Waagen, AAVSO HQ