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 IceInSpace Article: Calculating the Resolution of Solar System Images
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#1
15-11-2006, 08:31 AM
 iceman (Mike) Sir Post a Lot! Join Date: Sep 2004 Location: Gosford, NSW, Australia Posts: 36,762
Article: Calculating the Resolution of Solar System Images

Hi All

Al Sheehan (sheeny) has kindly written a how-to article titled Calculating the Resolution of Solar System Images.

You can read the article on the IceInSpace Projects & Articles page, or directly by clicking on the link below:

Calculating the Resolution of Solar System Images

Many thanks to Al for writing the article!

If you'd like to submit an article or a review for IceInSpace, it would be much appreciated! Please contact me.

Last edited by iceman; 16-11-2006 at 06:37 AM.
#2
16-11-2006, 06:37 AM
 iceman (Mike) Sir Post a Lot! Join Date: Sep 2004 Location: Gosford, NSW, Australia Posts: 36,762
#3
16-11-2006, 06:28 PM
 sheeny (Al) Spam Hunter Join Date: Jun 2005 Location: Oberon NSW Posts: 14,326
How Embarrassing!

Guys,

There is an arithmetic mistake in the original article! The method is fine, it's just the numbers from my calculations are not!

I have sent Mike a corrected article, so hopefully it will be put to rest soon.

Of course, someone from CN found it, and broadcast it, much to my embarrassment, but I congratulate them for being on the ball! (Good on you Mardi!) Mike sent me a copy of the post asking my opinion... gee, I hate that feeling when you know you stuffed up!

The mistake was that I actually used 2.32m as the focal length of the C8 and not 2.032m. Marvellous what a difference a zero makes! If I had worked in mm as I usually do the answer would have been out by an order of magnitude and I would've picked it. As it was, I had previously calculated 1059m for the pixel size on the moon at 10x foe the C8, but when writing this article I kept getting 928m or whatever it was. I thought it was wrong, checked it several times and repeatedly got the same answer so figured I must have used the apogee distance to the moon, and not the average distance, previously.

...a shining example of why you should never proof read your own work or check your own calculations! Glad no one was killed!!!

Al.
#4
17-11-2006, 06:53 AM
 iceman (Mike) Sir Post a Lot! Join Date: Sep 2004 Location: Gosford, NSW, Australia Posts: 36,762
Article corrected
#5
17-11-2006, 08:33 AM
 sheeny (Al) Spam Hunter Join Date: Jun 2005 Location: Oberon NSW Posts: 14,326
Thanks Mike! You're a gem!

Al.
#6
17-11-2006, 09:59 AM
 Dennis Dazzled by the Cosmos. Join Date: May 2005 Location: Brisbane Posts: 11,717
Hi Al

Don't sweat the simple mistake - it's a bit like walking into the Taj Mahal and finding a speck of dust on the floor. It would be foolish of anyone to let the tiny speck detract from the beauty and majesty of the building. Thanks for writing the article - it's hard to write but easy for others to find our small lapses of concentration! You’ve done a terrific job.

Cheers

Dennis
#7
17-11-2006, 04:46 PM
 ving (David) ~Dust bunny breeder~ Join Date: Nov 2004 Location: The town of campbells Posts: 12,359
lol al!
nice article

mike is worth his weight in buttercups hey
#8
18-11-2006, 10:48 AM
 beren Registered User Join Date: Oct 2004 Posts: 2,810
Excellent article AL this adds a interesting angle to either observing or imaging, I look forward to using the knowledge gained thanks for taking the time to contribute
#9
18-11-2006, 11:10 AM
 sheeny (Al) Spam Hunter Join Date: Jun 2005 Location: Oberon NSW Posts: 14,326
Quote:
 Originally Posted by ving lol al! nice article mike is worth his weight in buttercups hey
That's not many cows... oh, you mean buttercup the flower! Absolutely!

Al.

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