Go Back   IceInSpace > General Astronomy > Observational and Visual Astronomy
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rate Thread
  #1  
Old 02-12-2005, 08:40 AM
iceman's Avatar
iceman (Mike)
Sir Post a Lot!

iceman is offline
 
Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,799
Sunspot 826 growing!

A small sunspot has grown to the size of Saturn in the space of a day!

Might be some aurora coming up for you guys in the far south..

Here's an animated gif showing the sunspot grow..

(courtesy spaceweather and SOHO).

http://www.spaceweather.com/images20...5/midi512c.gif
Reply With Quote
  #2  
Old 02-12-2005, 01:27 PM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,816
Thanks Mike

Now all we need is for the 3 to 4 weeks of continuous cloud cover, thunderstorms and hail to abate for just one sweet day and delicious night, so I can re-acquaint myself with my gear, most of which I have almost forgotten how to set up and operate!

Cheers

Dennis
Reply With Quote
  #3  
Old 02-12-2005, 01:46 PM
fringe_dweller's Avatar
fringe_dweller
on the highway to Hell

fringe_dweller is offline
 
Join Date: May 2005
Location: Adelaide
Posts: 2,623
yer its nice eh - lets hope re aurora's, any CME's have a strong negative component an can override the tendency of the IMF to supress the Bz going south outside of the two usual windows of spring and autumn - there has been plenty of great aurora action in early dec before
Reply With Quote
  #4  
Old 02-12-2005, 02:18 PM
gaa_ian's Avatar
gaa_ian (Ian)
1300 THESKY

gaa_ian is offline
 
Join Date: Dec 2004
Location: Cairns Qld
Posts: 2,405
Looks good, I will have to grab the scope out for a look this Arvo.
Reply With Quote
  #5  
Old 03-12-2005, 06:40 PM
33South's Avatar
33South (Chris)
Registered User

33South is offline
 
Join Date: Jul 2005
Location: Wentworth Falls NSW
Posts: 1,112
Had a look a couple of hours ago, interesting strung out group. Much too windy up here for high power or imaging.

Maybe tomorrow.
Reply With Quote
  #6  
Old 04-12-2005, 12:55 AM
ballaratdragons's Avatar
ballaratdragons (Ken)
The 'DRAGON MAN'

ballaratdragons is offline
 
Join Date: Jan 2005
Location: In the Dark at Snake Valley, Victoria
Posts: 14,412
How long does it usually take for Auroras to be visible after the formation of a sunspot?
I couldn't find any timelines or effect schedules in google.
Reply With Quote
  #7  
Old 04-12-2005, 01:33 AM
RAJAH235's Avatar
RAJAH235
A very 'Senior' member.

RAJAH235 is offline
 
Join Date: Jan 2005
Location: South Coast N.S.W.
Posts: 2,571
Depends if there's a CME or not & if it's headed our way. L.

Last edited by RAJAH235; 05-12-2005 at 10:22 PM. Reason: I spelt CME wromg.
Reply With Quote
  #8  
Old 04-12-2005, 03:58 AM
fringe_dweller's Avatar
fringe_dweller
on the highway to Hell

fringe_dweller is offline
 
Join Date: May 2005
Location: Adelaide
Posts: 2,623
Rajah's right mate - the sun spot has to cough up a big juicy plasma sneeze first theres a lot of variables Ken, i'm not fully sure of it all enough to explain it properly. I just go out when the odds are good, and if you get lucky, you get lucky if you know what i mean. Not all sunspots create CME activity strong enough to cause aurora to be seen at our latitudes. if there is one, and it is pointed straight at earth at the time, it can take anywhere from roughly just under 24 hours to 48 hours for the leading edge of the plasma cloud to reach earth, and can last up to 48 hrs in duration sometimes, if it is big and dense enough, but that isnt common, usually 24 hrs at most ,before it has fully past. The speed it reaches us at is very much determined by how big the flare is measured to be - a strong X class (the highest) will get here faster than a M class generally.
Reply With Quote
  #9  
Old 04-12-2005, 12:58 PM
xrekcor
Guest
 
Posts: n/a
Dont know if anyone else has looked today. But there appear to be several groups
scattered across the suns disc today. It was the last thing I peaked at before
I hit the sack this morning.... and boy it was nice doing an alnighter!!!! : )

regards,CS ...at long last
Reply With Quote
  #10  
Old 04-12-2005, 01:13 PM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,816
Hi

Left my gear out overnight after being disappointed with my efforts at Mars, to have a go at Sunspot 826 with the Vixen 4" and ToUcam - my first solar imaging session with the webcam, as I usually use the Meade LPI. Initial impressions are that the ToUcam can make better use of poor seeing conditions when coupled with Registax.

Anyhow, here is my effort. 133 frames from 1800 using Registax.

Cheers

Dennis
Attached Thumbnails
Click for full-size image (Sun_0004.jpg)
57.1 KB16 views
Reply With Quote
  #11  
Old 04-12-2005, 01:22 PM
xrekcor
Guest
 
Posts: n/a
Lovely shot Dennis, nice detail too!


regards,CS
Reply With Quote
  #12  
Old 04-12-2005, 01:37 PM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,816
Quote:
Originally Posted by xrekcor
Lovely shot Dennis, nice detail too!


regards,CS
Thanks Rob. With the finished image I get the impression I am looking at these Sunspots though a ground glass screen; either an image processing artifact or maybe not enough images in the stack and so I am seeing the noise?

Anyhow, practice makes perfect so I'll keep plugging away!

Cheers

Dennis
Reply With Quote
  #13  
Old 04-12-2005, 02:01 PM
xrekcor
Guest
 
Posts: n/a
I think maybe you are picking up some surface granulation there too! and maybe not
so much noise. In any case it's as good as any sun group image I've seen through
a white light filter.

What was the filter? baadar film? or the thousand oak glass variety?


regards,CS
Reply With Quote
  #14  
Old 04-12-2005, 02:13 PM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,816
Hi Rob

Oops - forgot to add the details, thanks for the prompt. Equipment/imaging details are as follows:

Vixen ED102mm f9 refractor
TeleVue x2.5 PowerMate
Baader astrophotography film (not for visual use).
Exposure was 1/1500 sec on the ToUcam settings panel.
Gain was down, brightness was mid-range.
10 fps.
133 frames from 1800 selected in Registax V3 by setting the quality to 95.

Cheers

Dennis
Reply With Quote
  #15  
Old 04-12-2005, 03:24 PM
xrekcor
Guest
 
Posts: n/a
Thanks Dennis

look forward to seeing more!

regards,CS
Reply With Quote
  #16  
Old 04-12-2005, 03:49 PM
h0ughy's Avatar
h0ughy (David)
Moderator

h0ughy is offline
 
Join Date: Apr 2005
Location: NEWCASTLE NSW Australia
Posts: 33,426
here is my attempt
Attached Thumbnails
Click for full-size image (IMGP9830SUN (Large).jpg)
30.2 KB12 views
Reply With Quote
  #17  
Old 04-12-2005, 11:41 PM
RB's Avatar
RB (Andrew)
Moderator

RB is offline
 
Join Date: Aug 2005
Posts: 26,625
Quote:
Originally Posted by Dennis
Anyhow, here is my effort. 133 frames from 1800 using Registax.

Dennis

Very nice image there Dennis. If you still have the avi why not try and stack more frames to see if you can squeeze any more out.
Although it's still great as it is.

Well done.
Reply With Quote
  #18  
Old 04-12-2005, 11:42 PM
ballaratdragons's Avatar
ballaratdragons (Ken)
The 'DRAGON MAN'

ballaratdragons is offline
 
Join Date: Jan 2005
Location: In the Dark at Snake Valley, Victoria
Posts: 14,412
Here ya go Dennis, I coloured your pic for you!
Attached Thumbnails
Click for full-size image (Sun-in-colour.jpg)
31.4 KB6 views
Reply With Quote
  #19  
Old 04-12-2005, 11:44 PM
RB's Avatar
RB (Andrew)
Moderator

RB is offline
 
Join Date: Aug 2005
Posts: 26,625
Quote:
Originally Posted by h0ughy
here is my attempt
I like your colour image of the sun Dave.
Just needed a nudge on focus I think.

Reply With Quote
  #20  
Old 04-12-2005, 11:48 PM
gaa_ian's Avatar
gaa_ian (Ian)
1300 THESKY

gaa_ian is offline
 
Join Date: Dec 2004
Location: Cairns Qld
Posts: 2,405
We had a good look at this sunspot this Arvo with the Astroscan & JMB solar filter.
To me it looks like a giant electric Guitar
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 10:29 PM.

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