Data Set 23

[Tom Droege <tdroege2@earthlink.net>]

I think there will be no data set 21 or 22.  Numbers are cheap.

This disk contains a big bunch of .cal files.  See TN-93 for a small sample 
of this data.  It also contains a combined list of all the cal files 
collected so that all the measurements of the same stare are together with 
one star number for each.  There are 3 million + star measurements of 
90,000 + stars on the disk.  Some stars are measured once, some over 300 
times.

There are at least 50 variable stars to be discovered in this data.  Most 
of them will be new.

I hope that some of you will grab this data and develop wonderful new 
techniques to dig out the variables.  I have included a program by Doug 
Welch to use his statistic to help find variable candidates.  I have also 
included Rich Knowles (well, I will when I get his permission) plotting 
utility.  It allows you to scan through the files and plot data on the fly.

There are lots of fun things to find.  I have not yet figured out how to 
find the variables of longer period.  There must be a lot of them in this 
data.  There are lots of things to discuss when we start looking at this 
data.

Happy hunting!

Ask for this single CD in the usual way - send me a mail message with your 
name and address.  I know you think I know you but I do not keep an address 
list on my computer - thus frustrating some viruses.  Besides people move 
and this way I keep getting a fresh list.

While I assume that you will be using a linux system, these are all ascii 
files.  So you can look at them on any system that can read ISO CDs.  If 
you have a perl implementation, then you can use the utilities.

Tom Droege