Sue Ann Heatherly edited Experimental Design.md  almost 10 years ago

Commit id: 54d1a5c473de9c9fb3333a79dcc1b2301d9c7881

deletions | additions      

       

Based on our findings we will create our own recommendation table for the PROMPT telescopes.  For this experiment we conducted three trials. That is three images for each recommended exposure time were collected for each type of object. We analysed our data by visual inspection of the images. We used the image processing software Afterglow to change the min and max and determine the level of detail we could see and if any part of the image was over exposed.    **NOTE: This table did not come out well at all when I exported as an article ( I used Markdown conventions.)** Next I cut and pasted the html from the Faulkes website:                                                                                                                   
 
 

Object Type

 
 
 
 

Lower Limit

 

(seconds)

 
 
 
 

Usual Exposure Range

 

(seconds)

 
 
 
 

Better Images

 

(seconds)

 
 
 
 

Galaxy

 
 
 
 

30s

 
 
 
 

60s

 
 
 
 

120+s

 
 
 
 

Nebula

 
 
 
 

30s

 
 
 
 

60s

 
 
 
 

120+s

 
 
 
 

Star Cluster

 
 
 
 

2-5s

 
 
 
 

5-30s

 
 
 
 

Ask for advice

 
 
 
 

Planetary Nebula

 
 
 
 

10-20s

 
 
 
 

30-40s

 
 
 
 

Ask for advice

 
 
 
 

Asteroids

 
 
 
 

Mag <10: Avoid imaging if possible
Mag. 10-13: 20s
Mag. 14-16: 30s
Mag. 16-18: 60s
Mag. 18-20: 90s
Mag. >20 please ask for advice as other factors may influence your observation.

 
 
 
 

Planets

 
 
 

These should not be observed with either FTN or FTS because they leave residual images on the CCD.

 
 
 

Stars

 
 
 
 

Depends on the magnitude of the stars. The exposure times for asteroids can be used as a guide to exposure times for stars.

 
 
 
 

Bright Stars

 
 
 
 

Stars brighter than magnitude 8 should not be routinely imaged without advice from the FT Operations Centre.

 
 
 
 

The Moon

 
 
 
 

The Moon is too large and too bright to be imaged with a Faulkes Telescope. See the Field of View link on the right.

 
 
 
 

The Sun

 
 
 
 

The Sun is much too bright to be imaged with a Faulkes Telescope. The telescope will not allow this to happen.