
What shoud I see?
#1
Posted 22 January 2009 - 02:43 PM
I took it out yesterday and just saw a red disk. The air temp was in the hi 20s.
I tool it out today and saw a small prominence projecting from the limb. The air temp was in the low 40s.
I was expecting to see granulation on the disk even with the Sun as quiet as it is. I tried adjusting the filter with the brass wheel but it did not bring out any more detail.
What exactly should expect I see?
How sensitive is it to the air temperature?
#2
Posted 24 January 2009 - 12:09 PM
The other thing is that if you take photographs, you'll often detect features that you missed visually. To give you some idea of what the Sun's been like, check out this:
http://philippugh.fo..._SunHAlpha.html
The good news is that you'll get a lot more out of your instrument as solar activity picks up and the Sun gets higher. The Solarmax 60 is a very good 'scope.
One thing that might help is if you view the Sun as near to mid-day as possible.
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#3
Posted 20 March 2009 - 12:41 PM
My understanding is that if I open the etalon, which creates an angle between the etalon and the objective, you are adjusting to the blue side of the ban pass which should bring out features on the disk of the sun and not on the limb.
Is my understanding correct?
When you say "detune the etalon" which way are you adjusting the etalon?
I still have not been able to see any granulation.
#4
Posted 21 March 2009 - 02:28 AM
#5
Posted 22 March 2009 - 09:14 AM
I have the same kind of problem. I purchased a new Solarmax 60 /BF10 and had my first view today. I already own a Solarmax 40/BF10. With the SM60 I just can see a red disc with no details. The SM40 shows me at the same time some prominences and structures on the surface. Only when I screw the TMax on the SM60 to the maximum I can see SOME of the prominences, but with less detail than the SM40 and still nothing on the surface. This is not what I had expected.
That is interesting.
I wish I had something to compare it with like you.
How old is your Solarmax 40?
Maybe I will call Meade this week and see what they say about it.
If you find out anything on what may be going on here please post it.
#6
Posted 22 March 2009 - 10:37 AM
#7
Posted 23 March 2009 - 08:57 AM
My Solarmax 40 is now 6 years old and it was always working properly, just the demand for more aperture was the reason to buy the SM60. If you get any news from Meade, please let me (us) know.
I called Meade and talked to a customer support person. He didn't tell me much as expected. he said he would check with someone and get back to me tomorrow.
Since you are experiencing the same problem could you call them too?
I would like to see if they tell us the same thing.
#8
Posted 24 March 2009 - 11:27 PM
#9
Posted 25 March 2009 - 10:22 AM
Are you going to send it back?
#10
Posted 26 March 2009 - 10:14 AM
#11
Posted 26 March 2009 - 01:10 PM
I searched the cloudynights web site but all I could fins was imaging techniques.
BTW: Coronado finally called back and left a mess stating that I should send it in. Pffffhhhhhh.......
I'm not sure what to do. I just wish I had something to compare it with.
Please keep me updated on how you progress.
#12
Posted 26 March 2009 - 11:10 PM
#13
Posted 27 March 2009 - 05:28 AM
See you there.
#14
Posted 27 March 2009 - 06:22 AM
Although I did a book on the Coronado 'scopes, I'd never heard of this problem before.
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#15
Posted 31 March 2009 - 03:44 PM
I am sending my back for service tomorrow.
#16
Posted 13 April 2009 - 02:02 AM
I've heard that Meade is very slow to respond to repair requests for ex-Coronado kit.
There's not much visible on the Sun. I just saw one prominence and one filament today.
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