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The Quiet Sun

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I haven't uploaded anything for a while and thought I would try something a little different.

Here is a photo of the Sun showing a small sun spot group.
Just at the moment we are at the minimum of the 11 year solar cycle, so there are very few spots to be seen on the Suns surface.

The camera was mounted onto the telescope using a T2 mount.
A home made solar filter was used on the objective lens.
The filter is made from Baader Astro Solar Film which cuts out 99.9% of the light and heat reaching the camera.

The scope has a focal length of 350mm and an aperture of f5.
Shutter speed was 1/1600 sec

Cropped from the original image to 990 x 990 pixels to allow for a 10 pixel white border.

Colour, Brightness, and Contrast adjusted to give a nice shade of yellow.
A little USM to finish.

Hope you enjoy it, and as always comments are welcomed.

Doug Smile

Camera:Canon EOS 300D
Lens:Meade ETX-70AT Telescope
Recording media:JPEG (digital) ISO 100
Title:The Quiet Sun
Username:dougv dougv
Uploaded:5 Jun 2007 - 8:49 PM
Tags:Astro, Digitally manipulated, General, Solar, Specialist / abstract, Spot, Sun
Votes:28

Comments

KarenFB
KarenFB Junior Gallery Team 84277 forum postsKarenFB vcard England163 Constructive Critique Points
5 Jun 2007 - 8:54 PM

At first glance I thought it was an egg yolk! What an amazing shot, I'm sure I can see it pulsing as I look at it!
Smile

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dougv
dougv Site Moderator 108376 forum postsdougv vcard England3 Constructive Critique Points
5 Jun 2007 - 9:01 PM

Thanks Karen.
I'm nipping out shortly to try and get a shot or two of Venus and Saturn, although they will be better placed at the beginning of next month fairly close together in the sky just after sun set.
Doug Smile

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Brilane
Brilane e2 Member 8Brilane vcard Wales12 Constructive Critique Points
5 Jun 2007 - 9:05 PM

A clever piece of, scientific, procedure. Well performed.
Brian.

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SimyD
SimyD  9143 forum posts United Kingdom
5 Jun 2007 - 9:08 PM

Is that sensor dust or sun spots Smile

Simon

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pennyspike
pennyspike  112068 forum posts United Kingdom29 Constructive Critique Points
5 Jun 2007 - 9:08 PM

I'm glad I opened this, as a thumbnail I thought it was somebody having a bit of a jokeSmile
Are those dots that look like dust the sun spots?
Amazing what you can learn here.
Penny

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jjmills
jjmills  9153 forum posts Scotland
5 Jun 2007 - 9:09 PM

Looks quite quiet for sun spots, good image...

John

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dougv
dougv Site Moderator 108376 forum postsdougv vcard England3 Constructive Critique Points
5 Jun 2007 - 9:10 PM


Quote: Is that sensor dust or sun spots

Sun spots cheeky!
Not as sharp as I would have liked, but it was my first attempt.
Cheers guys.
Smile

Last Modified By Dave at 5 Jun 2007 - 9:11 PM

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bfgstew
bfgstew  8668 forum posts England105 Constructive Critique Points
5 Jun 2007 - 9:27 PM

WOW, amazing capture, well done for getting the sun spots in.
Stew

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scragend
scragend  10 Scotland
5 Jun 2007 - 9:46 PM

Not something you see every day - or at least not that close! As you say; it looks very quiet at the moment.

I was amazed that it was a direct image rather than reflected. The only time I've looked at sun spots was the old telescope and cardboard routine - clumsy but safe. Nice one!

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dougv
dougv Site Moderator 108376 forum postsdougv vcard England3 Constructive Critique Points
5 Jun 2007 - 10:03 PM

The Baader Astro Solar film is very good.
Mind you it ought to be at the price.
It costs 25 for a piece of film A4 size.
I've made a filter for the telescope, two small filters for my binoculars, and I still have a little bit left in case I manage to puncture one of the ones I have made.
It's the first time I have had the 300D hooked up to the scope, so I'm pleased with the result.
Just need to perfect the focusing I think.

Thanks for your interest.
Doug Smile

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Alan_Warriner
5 Jun 2007 - 10:03 PM

It also appears to be pulsing to me (must have the same monitorSmile)

Different and well done

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kevski
kevski  7 United Kingdom
6 Jun 2007 - 11:56 AM

What a stunning shot of the sun.Very impressive.
kev.

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dougv
dougv Site Moderator 108376 forum postsdougv vcard England3 Constructive Critique Points
6 Jun 2007 - 2:08 PM

Thanks everyone!
I'm glad you liked it.
I'll see what other Astro pics I can come up with.
Doug
Smile

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thearmsofvenusdemilo

Pretty cool image Doug, would be interested to see if you could get a half decent one of Saturn


Colin

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Blenkinsopp
11 Jun 2007 - 9:28 AM

amazing shot - way beyond me

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imagio
imagio  8 England1 Constructive Critique Points
20 Jun 2007 - 6:51 AM

Awesome image Doug..

Bernie

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C_Daniels
C_Daniels  9399 forum posts England10 Constructive Critique Points
24 Jun 2007 - 8:24 PM

At first I thought it was the moooon....

Smile

Interesting picture and documentation.

Last Modified By Dave at 24 Jun 2007 - 8:23 PM

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dougv
dougv Site Moderator 108376 forum postsdougv vcard England3 Constructive Critique Points
24 Jun 2007 - 9:51 PM

Thanks everyone.
Doug Smile

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looboss
looboss  73124 forum posts United Kingdom7 Constructive Critique Points
12 Aug 2007 - 11:13 PM

Sure there not dust spot on your sensor LOL!

great and original!

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paulcr
paulcr  91536 forum posts Ireland9 Constructive Critique Points
13 Aug 2007 - 5:46 PM

Thats excellent. First I've seen here like it. Paul

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wipka84
wipka84  643 forum posts England
6 Mar 2008 - 8:57 AM

Really interesting, something that I havent seen anyone on here do so original too. Going to all that effort really paid off!

Its' amazing how bright the sun actually is, 99.9% light filter and you still need a 1/1600th shutter speed.

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Gary_Macleod
2 May 2008 - 11:10 PM

superb

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gossyboy
gossyboy  6460 forum posts United Kingdom
23 Jun 2008 - 6:51 PM

Clever stuff............

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stuart davies
12 Jan 2009 - 11:28 AM

Fascinating shot.
Stuart

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dougv
dougv Site Moderator 108376 forum postsdougv vcard England3 Constructive Critique Points
12 Jan 2009 - 3:36 PM

Thanks Stuart I'm glad you like it.

Doug Smile

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