Skip to main content

ASASSN-V J181654.06-202117.6 campaign - Alert Notice 710

6 posts / 0 new
Last post
weo
weo's picture
ASASSN-V J181654.06-202117.6 campaign - Alert Notice 710

AAVSO Alert Notice 710 announces an observing campaign beginning now on the UXOR ASASSN-V J181654.06-202117.6. Please see the notice for details and observing instructions.

To stay informed about this campaign, subscribe to this forum thread (option 1 below under Subscribe)  -  see feedback from the PI,  comments and questions from observers, and notes from AAVSO HQ. Add a post yourself  -  join in the discussion about this interesting target!

Many thanks, and Good observing,

Elizabeth O. Waagen, AAVSO HQ

dmvandam
dmvandam's picture
Extra Information

This campaign notice is also available in the Campaign & Observation Reports thread

dmvandam
dmvandam's picture
Airmass > 2

In the Campaign & Observation Reports thread, Erik asked whether Airmass > 2 observations are useful, to which I replied, yes right now we just want as much data as possible so we can catch all the details in the eclipse. We can sort through systematics at a later stage.

dmvandam
dmvandam's picture
Lining up other Telescopes

Hi everyone,

Just wanted to let you know that I obtained data from ATLAS, which lines up with the deepest part of the eclipse (along with data from VMT). I also have data from ASAS, which seems to show a similar dip in the past (more analysis needed). I'm working on reducing the LCOGT data to see if we can get more data to fill out the eclipse, and I'll keep you posted! Thanks all for staying on board

Kind regards,

Dirk

dmvandam
dmvandam's picture
Basic Plot

Just wanted to thank you all for observing J1816 and provide a very basic plot. I just took all the AAVSO, ASAS-SN, ASAS, and ATLAS data (I've been on holiday so didn't have the time to reduce the LCOGT data yet), and just removed the median for each observer and filter to get a kind of first order plot. It looks like the object is still crossing in front of the star, so if you can keep observing this would be much appreciated.

 

For some reason I can't seem to upload the file here, so I made a GitHub repository with the plot in it (basic_plot.png found at https://github.com/dmvandam/j1816)

 

Cheers,

Dirk

dmvandam
dmvandam's picture
Continued Observations!

Hello thanks to everyone for continuing to make observations of this interesting star. I'm "kind of" on holiday so won't be able to do any in depth analysis for now, but did want to share with all of you some new plots. So I've posted a plot of the possible ring system and the theoretical light curve obtained on the github page (https://github.com/dmvandam/j1816). I hope this keeps everyone motivated. This could be a very very interesting system. Let's keep our hopes up!

Log in to post comments
AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484