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AB Aur campaign supporting HST observations - Alert Notice 809

weo
Affiliation
American Association of Variable Star Observers (AAVSO)
Tue, 01/17/2023 - 23:18

AAVSO Alert Notice 809 announces an observing campaign on the YSO AB Aur beginning immediately. Please see the notice for details and observing instructions.

There are threads for this campaign under the following AAVSO forums:

- Campaigns & Observation Reports: https://www.aavso.org/ab-aur-campaign-2023
- Young Stellar Objects: https://www.aavso.org/ab-aur-campaign-2023-01

Please subscribe to these threads if you are participating in the campaign so you can be updated. Join in the discussion or ask questions there!

Many thanks, and Good observing,

Elizabeth O. Waagen, AAVSO HQ

weo
Affiliation
American Association of Variable Star Observers (AAVSO)
Mon, 02/06/2023 - 23:04
AB Aur being observed with HST Feb7/8 - Alert Notice 811

AAVSO Alert Notice 811 reports on the exact times of HST observations of AB Aur and has an important note about which check star to use. Please see the notice for details and observing instructions.

There are threads for this campaign under the following AAVSO forums:

- Campaigns & Observation Reports: https://www.aavso.org/ab-aur-campaign-2023
- Young Stellar Objects: https://www.aavso.org/ab-aur-campaign-2023-01

Please subscribe to these threads if you are participating in the campaign so you can be updated. Join in the discussion or ask questions there!

Many thanks, and Good observing,

Elizabeth O. Waagen, AAVSO HQ

weo
Affiliation
American Association of Variable Star Observers (AAVSO)
Tue, 02/28/2023 - 18:54
AB Aur HST observations March 1-2 - Alert Notice 814

This post was inadvertently made twice yesterday in the Campaigns forum instead of once there and here. Apologies!! Please observe AB Aur tonight and tomorrow night (and then continue as instructed in the Alert Notice below).

AAVSO Alert Notice 814 reports on the exact times of the second set of HST observations of AB Aur. Please see the notice for details and observing instructions, including information about which check star to use.

There are threads for this campaign under the following AAVSO forums:

- Campaigns & Observation Reports: https://www.aavso.org/ab-aur-campaign-2023
- Young Stellar Objects: https://www.aavso.org/ab-aur-campaign-2023-01

Please subscribe to these threads if you are participating in the campaign so you can be updated. Join in the discussion or ask questions there!

Many thanks, and Good observing,

Elizabeth O. Waagen, AAVSO HQ

weo
Affiliation
American Association of Variable Star Observers (AAVSO)
Mon, 03/13/2023 - 19:57
AB Aur observations update from Dr. Biddle

Dr. Lauren Biddle asked me to share this update with you:

The third HST dataset was successfully acquired with several supporting observations by AAVSO observers. Thank you to everyone who has been on board with us the past few months!
 
The final two rounds of HST observations for our program will take place between December 2023 – January 2024, presenting even more opportunities for monitoring AB Aur's variability when it is visible once again in the Fall and Winter. Please keep an eye out for updates later this year!
 
In the meantime, all observations that may be taken during the remainder of AB Aur's visibility this Spring are still important and will be assessed during the analysis phase of our program.
 
Please continue to observe AB Aur to solar conjunction, and pick it up again in late September.
 
Many thanks, and good observing,
 
Elizabeth
weo
Affiliation
American Association of Variable Star Observers (AAVSO)
Wed, 11/15/2023 - 20:54
AB Aur HST campaign Dec 2023-Feb 2024 - Alert Notice 842

AAVSO Alert Notice 842 announces a new observing campaign on the YSO AB Aur beginning immediately. Please see the notice for details and observing instructions. The notice also contains information about a free webinar on this star and campaign being held on November 19.

There are threads for this campaign under the following AAVSO forums:

- Campaigns & Observation Reports: https://www.aavso.org/ab-aur-campaign-2023
- Young Stellar Objects: https://www.aavso.org/ab-aur-campaign-2023-01

Please subscribe to these threads if you are participating in the campaign so you can be updated. Join in the discussion or ask questions there!

Many thanks, and Good observing,

Elizabeth O. Waagen, AAVSO HQ

cwt
Affiliation
American Association of Variable Star Observers (AAVSO)
Sat, 11/18/2023 - 14:48
AB Aur webinar tomorrow

Hi folks.  Quick reminder that the webinar on AB Aur results (so far) and this year's AB Aur campaign is tomorrow (Sunday) at 2PM Eastern, 19:00 UTC.   Dr. Biddle will tell us some about the AB Aur system, their work on it with McDonald Observatory and HST, and discuss some particulars of this year's AAVSO campaign.  Plenty of time is set aside for questions and discussion.

Register for the webinar at this link:

https://us02web.zoom.us/webinar/register/4116999884483/WN_Vr3GfhiDRMSrQpGyvrzUlA

Clearest skies,

Walt