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V582 Mon monitoring requested

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weo
weo's picture
V582 Mon monitoring requested

AAVSO Alert Notice 693 announces a campaign on the YSO V582 Mon (KH 15D). Please see the notice for details and observing instructions.

Many thanks, and Good observing,

Elizabeth O. Waagen, AAVSO HQ

MervMillward
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Typo?

Hi Elizabeth, just checking but the submission name to the AAVSO says V694 Mon - is this a typo and it should read V582 Mon?

cheers, Merv

 

weo
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Yes, name typo - report as V582 Mon

Hi Marv,

Yes, this was a typo on my part and it should be V582 Mon - on the day I wrote the Alert Notice for V582 Mon I had also been working on one on V694 Mon (MWC 560), and the Alert Notice numbers were 692 and 693. I confused myself! Thanks for catching it -

Good observing,

Elizabeth

bskiff
KH 15D = V582 Mon activity

The near-IR spectroscopy scheduled for this star is underway.  Although the star has been faint and difficult to measure, some additional I-band photometry would be helpful in asessing the state of the system ust now.  I have obtained V and I data in the past two weeks, but it is now cloudy locally (Arizona), so cannot follow the star during the spectroscopic observations.

\Brian

 

bskiff
KH 15D near end of season

It is probably worth noting here that because of the virus shutdowns, the planned spectral observations of KH 15D with Gemini did not happen.  The observing season will be ending in the coming weeks.  In the last few days the star has gone into the deep double minimum of its variation cycle, down around mag 19 in V.  AAVSO observations in the last couple months have shown this pattern very clearly.  Because of the crowding and faintness, it is OK to get only I filter data:  the variation pattern is well-known, so just knowing the state of things is sufficient.  I will follow it until it is somewhat below 3 airmasses at Sun elevation -10 degrees. 

\Brian

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