[vsnet-alert 648] (fwd) V651 Mon (Re: vsnet-alert 642)

[Taichi Kato <tkato>]

The following message is from Dr. Costero.

>From: Rafael Costero <costero@astroscu.unam.mx>
>Subject: V651Mon (vsnet-alert 642... )

This message is to give you my opinion of what is going on with V651 Mon. I 
believe this second cloud is smaller and/or closer to the binary than the first 
one that caused the variations in 1984-1985, presumably due to occultations 
(a more appropriate word than eclipses, as suggested by R.H. Mendez in the 7th 
Latin-American Regional Meeting of the IAU in 1992) by a dust-reach cloud in 
front of the binary orbit. It apparently is passing one side of the orbit 
projected on the sky, and entering the other side, hence producing two 
occultations in two different phases. If so, the first minimum will decrease 
(as observed). and the second will increase and then also decrease in the 
months to come. 

Hope this will encourage the fallow-up observations by VSNET enthusiastic 
members, whose work is impressively valuable and useful. I wish you and all 
those related to VSNET a Marry Christmas and a very fruitful 1997. I also 
hope to be able to join you all very soon in the fallow-up of this and other 
exciting objects. 

Most sincerely,	

Rafael Costero 
Instituto de Astronomia, UNAM
Mexico

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