Object type search?

[Neil McAllister]

When I go through the various search options within the All One Click Observations the one option that I haven't worked out how to use and what to put in it, is the Object Type tab.Any ideas what to put in there to narrow down the searching?

Thank you in advance for any replies,

 

Neil

[Astro Newbie]

Hi Neil 

I don't use it as it can come up with things you might not expect to see.

It is the Object Type column assigned to each one click observation. It will accept things such as Galaxy, or, Cluster of stars etc. Note that you have to enter it exactly as shown. For example just entering Cluster for Cluster of stars will not work, and for Open (galactic) cluster, the parentheses are required. Maybe someone can explain its intended use. 

[Neil McAllister]

I thought that it might be something along those lines,it's just that when I try to put any type of description in it doesn't accept it.I suppose there must be specific wordings that have to be used, I just wanted to find out what those words were.

[ERNESTO GUIDO]

Hi there! 😊

To get the best results when using the Object Type search, make sure to use this format:

*Open (galactic) cluster

The little * before the query acts as a wildcard and helps to match the exact object type as defined in our system. Just be sure to include the full name as it’s listed (like parentheses and all). 

Give it a try and see how it works! I’ve also attached some images as example.
 

Clear Skies,

Ernesto

[Neil McAllister]

Thank you for that Ernesto,I'll give it a try.

[Astro Newbie]

I still think this option is of very limited use. Maybe in the beginning it would have been more relevant when there weren't over 7,000 observations as there are now.

With over 40 Object Types to choose from and of which there are very many containing the word "galaxy" it's would really be of use in a few instances shown below. Incidentally, the wild card character (*) is helpful as it can be used within the search string.  

Comet or Minor Planet  [comet or*] 

Globular cluster  [glob*] 

Open (galactic) cluster. [open*cluster] 

Planetary nebula  [plan*] 

The square brackets [] are only there to enclose the search string and are not to be entered. 

Finally, given the thousands of observations there appear to be very, very few mistypes/mistakes. Some appear to have no Object Type assigned and a tiny number may have an incorrect designation. 

Edited November 18 by Astro Newbie

[Neil McAllister]

My initial reason for asking was that I wanted to try processing dark nebulae now that my processing knowledge within Pixinsight has improved as they were something that I struggled to get to look half decent.

[Astro Newbie]

Hi Neil, 

So far I've tried to avoid those dark ones and have not been satisfied with my attempts on the Dark Wolf up to now. I'm hoping that by now you've found what you want.

The only way that I have found to see a good selection of them is to either, enter [ldn] as an Object Name, or, [*dark*] as the Object Type. Thanks for pointing that field out as it is certainly a good way to find all the Globular Clusters, Planetary nebulae etc. 

CS