[vsnet-chat 5641] Re: [AAVSO-DIS] Henden sequences and charts online

["Mike Simonsen" <mikesimonsen@mindspring.com>]

Steve,

I certainly hope you will use them to observe with! As a CCD observer you
should find this format useful.

A handful of friends and I have been using some of these for a couple years.
I always denote them as HENDEN in my reports.

However, we have gone to some pains to make sure the charts match the most
recent versions of the sequence text files. The C scale charts (think C for
CCD) are dated with the corresponding date of the most recent revision of
the sequence (yymmdd). This is a check for CDD observers to make sure they
have the corresponding charts and sequences. The B and A charts are dated
the day they are drawn or revised. So each scale should have its own unique
six digit number assigned to it for each star. My hope is that provisions
will be made to allow you to report this code so HQ knows exactly which
update of the sequences you are using.

Aaron and I have talked about this, but no official answer has come just
yet. For now, Henden will suffice.

Thanks for your work on the stars in Perseus and Cygnus, BTW.

Mike

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