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Important Information
regarding your planetary nebulae object search!
Use the _  (underscore) character
instead of the -  (hyphen) AND
do not use spaces between
characters - See Examples on 
the right.
(Conversion within site from (-) to ( _ ) characters has been done). See Update below. Thanks!

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Note: Most of this applies when searching for specific objects that have mixed text & numerical designations.
Examples: If you are searching for, say the planetary Minkowski 1-92, use this entry:
M1_92; for an NGC object, such as NGC 6369, use NGC6369 (No spaces). For text, ok to use spaces (blue snowball, etc)


If your search fails, email me and let me know what you were searching for.

Search Tip: After you've gone to a page in which the search engine has shown there is a 'hit' for what you're searching for, use the browser feature
'Find (on this page)' under the browser's Edit menu (at least in Internet Explorer) to take you to that particular occurrence of the text string on that page.

Text Search Page Updates:

October 2000:  FreeFind has been very cooperative in customizing their search engine to allow the search for astronomical objects that normally use the hyphen ( - ), but since using that character is also used as a math symbol, it can't be used as a 'text' character in the search engine.  So FREEFIND has made modifications to their software to recognize the underscore character ( _ ).  To the best of my knowledge, I have changed all object designations on this web site that use a ' - ' character to the ( _ ) character.  Not all catalogs though use a separator such as the hyphen (such as objects with designations as IsWe1 or PB1 or Abell22); however, many do such as Haro, Henize, Minkowski, Kohoutec, Perek, Wray, Sanduleak, and several others.) In any case, any time that a hyphen is required, use the underscore character instead, and do not use spaces between the characters.  If you find problems with your search, or your search is unsuccessful, let me know. (email me)

September 2000: FreeFind has informed me that SOON, visitors will be able to use the 'underscore' ( _ ) character to find specific objects that now use the 'hyphen'  (-) chararcter. Search engines do not recognize the ( - ) as a separator, but as a negative or minus sign.  I will replace all ( - ) characters with the ( _ ) character once they tell me its ready to use with their search engine.

August 2000: Many items that the new search engine does not find; I have written the owners for additional help. In most cases, if you enter a designation containing a hyphen ( - ), the search engine will not find it.

July 2000: Now using the site search engine from, we'll see how well this feature works. Previously, many of the planetary nebulae designations could not be found (in the old search engine).  Let's test this puppy out!


In searching for an object, it is best in most cases not to use a space between the characters.  For example, to search for He 2-418, use He2-418.  I have gone through much of the site and removed all spaces that I've found, including those of NGC and IC, but there are still a good number of occurrences in which the spaces exist.  All Henize objects have the designation starting with He . All Haro objects start with H, although I have doubled up and also included 'Haro' (for example, Haro1-51 can be found by using H1-51 or Haro1-51). Kohoutek objects are using 'K' only.

This page has been added to assist in locating information contained on the many individual web pages. 
It will work quite nicely for text that does not contain any non-alphanumeric characters (i.e., will work fine for, say like locating ngc6772, but will not work satisfactorily for something like M1-67). I am proceeding through all the web pages and establishing a consistancy between how objects are designated.
(Update: Most, if not all, ngc and ic designations will be found by entering 'ngcxxxx' or 'icxxxx' (no leading zeros necessary or space necessary) At the present (now formerly), say if you want all references to NGC 7293, there might be some or all of the following contained in different pages: ngc7293, ngc 7293, n7293. In the case of a 'space' between ngc and 7293, you could use a search like this: ngc AND 7293. If you put in just '7293' (or whatever number), you will probably get returned all references to ngc 7293, plus whatever text strings throughout the web site that also have this combination of text. I would appreciate knowing any failure modes in this search page, or if you have any tips on getting a successful return. Thanks!