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

Reply
 
Thread Tools Rate Thread
  #21  
Old 15-10-2005, 08:45 PM
asimov's Avatar
asimov (John)
Planet photographer

asimov is offline
 
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
Grows hairs.....your not defocusing enough, keep going......no good doing this at low mag mate, I must stipulate this, you'll get confusing results
Reply With Quote
  #22  
Old 15-10-2005, 08:46 PM
davidpretorius's Avatar
davidpretorius
lots of eyes on you!

davidpretorius is offline
 
Join Date: Jun 2005
Location: Launceston Tasmania
Posts: 7,381
cool, ok i will try later tonight, scope has been out there for 4 hrs, i will point to zenith and defocus with a few ep's

by the way, the iss is about to poop on your head! in 10 minutes frm now!
Reply With Quote
  #23  
Old 15-10-2005, 08:54 PM
rumples riot
Who knows

rumples riot is offline
 
Join Date: Oct 2004
Location: Blackwood South Australia
Posts: 3,051
Always go for the minimum amount of rings and aim for a magnitude 2 star.
Reply With Quote
  #24  
Old 15-10-2005, 08:54 PM
asimov's Avatar
asimov (John)
Planet photographer

asimov is offline
 
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
ok. If you were to get the image as seen in this pic, & you were to stick your finger over the end of the OTA you would see something similar to that black bar in the pic. Then you kinda run your finger around the circumfrence of the tube until it looks something like in the pic. You then run your eye along the OTA to find the closest primary screw corresponding with your finger. Now it's just a matter of finding out which way to turn that screw (trial & error) incriments of 1/16th
Attached Images
File Type: bmp coma.bmp (56.1 KB, 11 views)

Last edited by asimov; 15-10-2005 at 08:56 PM. Reason: forgot the pic!!
Reply With Quote
  #25  
Old 15-10-2005, 08:58 PM
asimov's Avatar
asimov (John)
Planet photographer

asimov is offline
 
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
Am I explaining this right rumples? I'm no expert!
Reply With Quote
  #26  
Old 15-10-2005, 09:04 PM
davidpretorius's Avatar
davidpretorius
lots of eyes on you!

davidpretorius is offline
 
Join Date: Jun 2005
Location: Launceston Tasmania
Posts: 7,381
making sense, thanks guys, i really appreciate it!

so start with 12mm (100 x), then go to 6mm (200x)
Reply With Quote
  #27  
Old 15-10-2005, 09:04 PM
asimov's Avatar
asimov (John)
Planet photographer

asimov is offline
 
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
No sign of ISS BTW 80% cloud cove, 4/10 seeing..(hehehe)
Reply With Quote
  #28  
Old 15-10-2005, 09:05 PM
rumples riot
Who knows

rumples riot is offline
 
Join Date: Oct 2004
Location: Blackwood South Australia
Posts: 3,051
Yep sounds good to me.
Reply With Quote
  #29  
Old 15-10-2005, 09:07 PM
asimov's Avatar
asimov (John)
Planet photographer

asimov is offline
 
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
That's what I would do if thats the magnification ranges you have, yes.
Reply With Quote
  #30  
Old 15-10-2005, 09:08 PM
davidpretorius's Avatar
davidpretorius
lots of eyes on you!

davidpretorius is offline
 
Join Date: Jun 2005
Location: Launceston Tasmania
Posts: 7,381
saw a -8 iridium heading north, right into the moon.

the iis past into eart shadow shortly after clearing the horizon.

and how nice venus and antares area looks.

my 5 yr old asked to turn her bed around to look out the window, right at venus and the red of antares.

how could an astro mad father say no????
Reply With Quote
  #31  
Old 15-10-2005, 09:09 PM
RAJAH235's Avatar
RAJAH235
A very 'Senior' member.

RAJAH235 is offline
 
Join Date: Jan 2005
Location: South Coast N.S.W.
Posts: 2,571
Paul H, IIM ask a simple Q? It seems strange to me that you have to 'tweak' your collimation before each session. You have one of the best SCT's designed. Why is it nec. to re-collimate? They don't 'go out of coll', AFAIK. Something loose? I know you're doing high scale stuff, but it just seems a little............
NOM. L.
Reply With Quote
  #32  
Old 15-10-2005, 09:09 PM
davidpretorius's Avatar
davidpretorius
lots of eyes on you!

davidpretorius is offline
 
Join Date: Jun 2005
Location: Launceston Tasmania
Posts: 7,381
ok will do,

and mikes 2x and 2.4x barlows
Reply With Quote
  #33  
Old 15-10-2005, 09:09 PM
asimov's Avatar
asimov (John)
Planet photographer

asimov is offline
 
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
Could be hard though....what R seeing conditions like there?
Reply With Quote
  #34  
Old 15-10-2005, 09:13 PM
asimov's Avatar
asimov (John)
Planet photographer

asimov is offline
 
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
Forget about the barlow....just use the 6mm...(IMHO)as ur highest mag
Reply With Quote
  #35  
Old 15-10-2005, 09:17 PM
davidpretorius's Avatar
davidpretorius
lots of eyes on you!

davidpretorius is offline
 
Join Date: Jun 2005
Location: Launceston Tasmania
Posts: 7,381
ok, will do!

guess who has just stuck his nose over the eastern mountain, hello mars!
Reply With Quote
  #36  
Old 15-10-2005, 09:19 PM
davidpretorius's Avatar
davidpretorius
lots of eyes on you!

davidpretorius is offline
 
Join Date: Jun 2005
Location: Launceston Tasmania
Posts: 7,381
very clear conditions, no real sparkle, looks settled!

haven't looked thru the scope to see if the moon is boiling, but will check when i have a rip at mar and saturn for imaging and star test as well.
Reply With Quote
  #37  
Old 15-10-2005, 09:20 PM
asimov's Avatar
asimov (John)
Planet photographer

asimov is offline
 
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
While your at it, pop the toucam in a take varying out of focus pics for us! (that should keep him outa our hair for the next 6 hrs ay fella's!?)

joke joyce!
Reply With Quote
  #38  
Old 15-10-2005, 09:23 PM
davidpretorius's Avatar
davidpretorius
lots of eyes on you!

davidpretorius is offline
 
Join Date: Jun 2005
Location: Launceston Tasmania
Posts: 7,381
jet stream non existant, should be a great night again.

i don't go out unless 9/10 seeing, which means i only go out 3/4 nights, It is not fair!

God must be punishing me for something!!!

Exagerating???

Only hassle is that at 5mm fl, the adjustment of the focus is soooooo sensitive and the image goes every where!, I have had my stepper motor controller fixed for weeks and still have not hooked it up for electronic focussing!

bad bad dave!
Reply With Quote
  #39  
Old 15-10-2005, 09:24 PM
asimov's Avatar
asimov (John)
Planet photographer

asimov is offline
 
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
Stars at zenith twinkling here....minus 58 seeing conditions!!
Reply With Quote
  #40  
Old 15-10-2005, 09:26 PM
asimov's Avatar
asimov (John)
Planet photographer

asimov is offline
 
Join Date: May 2005
Location: Bundaberg
Posts: 8,819
That's nothin' mate! wait till U move your primary & go to find that same star again!
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 03:52 PM.

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