[vsnet-chat 5773] Re: [AAVSO-DIS] survey, pixy etc

[Brian Skiff <Brian.Skiff@lowell.edu>]

>>  ...don't report your observations with "R".  These observations
>>  are "unfiltered CCD observations" whose zero-point is adjusted to R system.

     This is probably reasonable.  Maceij will need to get at least one
filter eventually, however.

>>  preferably use the code "Rc" instead of less informative
>>  "R", when the observations are done with Kron-Cousins R system.  This is
>>  to avoid a confusion with Johnson R system.

     Is anyone anywhere using the Johnson R,I system?  What standards are
available?  Did Johnson ever publish his RI standard stars?  The system
has been disbanded for 20 years!

\Brian

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