Go Back   IceInSpace > General Astronomy > General Chat
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rate Thread
  #1  
Old 27-08-2012, 09:02 PM
Harpspitfire
Registered User

Harpspitfire is offline
 
Join Date: Jun 2006
Location: pittsburgh pa
Posts: 268
mars help

someone seen this mars email again- we know its all crap- but they said seeing mars at 25 arc seconds @ 72X is the same as a naked eye moon- i think thats crazy -no way will mars the size at 72X- i got this replay

""When in doubt, do the math. 200x25=5000 arcseconds. The naked-eye Moon is 1800 ascseconds in diameter. So that's more than enough magnification to make it that big. How much magnification would do the job? 1800 / 25 = 72x So that claim is accurate.""

i think the above math is flawed, i dont think angular size magnification work this way- if it did- 40 arc second jupiter would be 12,000 arc seconds at 300X- or over 3.3 degrees in the EP
Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 02:18 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Advertisement
Bintel
Advertisement