I will shortly (hopefully) be announcing the observational campaign on the nearby YSO TV Crateris. This is a double-double system with an extremely complicated environment, actually too interesting to be outlined here! See the excellent article in MNRAS for a full outline of the physical parameters. Periastron of each pair is due to occur this Summer so it would be great of we could have observations made now. Matthew Kenworthy who has done great work on deconstructing the system of V1400 Cen from its chaotic light changes suggests 2 - 3 points per night. Ideally we would already have some obs in the can, and monitoring should be for at least the next few months as well.
I have produced a sequence which includes Sloan filter values in g / r / i which is what Matthew used on the V1400 Cen project.
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HI,
I am following this target already for more than 150 nights in BVI filters. Data are with the AAVSO database and here is a screen shot of them:
I am so far the only observer.
Josch Hambsch (HMB)
Hi Josch,
What are you using for Comp and Check stars? I only see one star at mag 9.3 shown on the AAVSO Chart. Perhaps the campaign organizer needs to contact Sebastian Otero to get a full Sequence set up…
Gary
ps: Target is way too low for my scope’s location at 37N