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- Information on the Saguaro Astronomy Club Database version 7.1
-
- dated June 15, 2000
-
- by Steve Coe, SAC Vice President
- email: stevecoe3@home.com
-
- This club project started many years ago, when we wanted a listing
- of the brightest deep sky objects on our computers. Thinking it
- would be an easy task, here we are nearly 20 years later, still
- maintaining and updating a much larger listing of information
- about what to observe at the telescope. How far we have come
- from the list of objects from Burnham's Celestial Handbook, all
- typed in on my Apple II+. Time flies. As always, if you find an
- error, please let us know.
-
-
- This ZIP file contains five text files:
-
- This README.TXT file.
-
- SACDOC.TXT is the documentation for the SAC database, there
- is much information here on the data fields and what the data means.
- Please spend some time reading this info before trying to utilize the
- database, it will help you to use this data effectively.
-
- REVHIST.TXT is the revision history, a short file about the various
- releases of the SAC database.
-
- POTPORRI.TXT is a set of information about a wide variety of
- astronomical phenomena from white dwarf stars, red stars and
- meteor showers. These are useful files, but they did not fit the
- information style of the main database.
-
- SAC71.TXT is version 7.1 of the Saguaro Astronomy Club
- database in quote, comma, quote delimited form. Any modern
- database manager or spreadsheet will import the data in this form.
- I contains information on over 10,000 deepsky objects.
-
- There are a few changes to the database fields from the previous
- releases of the SAC database:
- 1) The SIZE field has been split into two fields, one for major axis
- and one for minor axis. The SIZE fields use the lower case letter
- <m> for arcminutes, <s> for arcseconds and <d> for degrees.
- Because the database is delimited (field separated) with a double
- quote, it was confusing in some programs to also use a double
- quote for arcseconds.
- 2) The addition of the BCHM field allows easy access to Messier
- or other references from prominent catalogs.
- 3) The NGC description field and the NOTES field are now next
- to each other, so that they can be easily included or left out of a
- printed observing list.
-
- Much time and effort was spent to update the data with information
- available on the NGCIC.ORG Web site. Thanks to Bob Erdmann
- for managing the site and providing this valuable resource. Both
- Wolfgang Steineke and Dr. Harold Corwin have many hours of
- searching for, and correcting, errors in the NGC. Their work is
- reflected in this release of the SAC database. A small fraction of
- the number of objects still persist as NONEXISTENT, compared
- to the beginning of this database. Brian Skiff of Lowell Obs. has
- also been a constant help with a variety of information about
- these deep sky objects.
-
- Thank you to the skill, knowledge and expertise of all who helped
- the Saguaro Astronomy Club create an excellent listing of what
- to observe in the deep sky.
-
-
-
-