Posts tagged 'Sunspots'

Observing Report 17th April 2016 (Unexpected sunspots)

Posted by on May 1st 2016 in Astrostuff, Observing Reports, Pics
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It's hard to believe that it's been over a year since I posted anything astronomy-related.

I'm not yet ready for full nights up in the obsy, but unexpectedly I was allowed out to play during the day.

Here are a couple of sunspot pics and a stitched image from a session a couple of weeks ago. Not my best work, but it was fun trying to remember which wires connect what to what, and which software settings are best for the conditions and the data.

Active Region 2529 (17/04/2016).
DMK mono camera with 2.25x Barlow on C80ED-R, Baader Solar Film filter.

 

Active Region 2532 (17/04/2016).
DMK mono camera with 2.25x Barlow on C80ED-R, Baader Solar Film filter.

 

Sun (17/04/2016).
Six stitched images from the DMK mono camera on C80ED-R, Baader Solar Film filter.

Observing Report 5th July 2013 (A big group of sunspots)

Posted by on July 6th 2013 in Astrostuff, Observing Reports, Pics
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Yesterday saw an improvement in the weather. I managed to get out for an hour to nab this sunspot group:

 

Active Regions 1785 and 1787 (05/07/2013).
DMK mono camera on C80ED-R, Baader Solar Film filter.

 

What SOHO (the Solar and Heliospheric Observatory) saw.

 

Close-up of Active Regions 1785 and 1787 (05/07/2013).
DMK mono camera with 2.25x Barlow on C80ED-R, Baader Solar Film filter.

Observing Report 19th May 2013 (Sunday Sun)

Posted by on May 20th 2013 in Astrostuff, Observing Reports, Pics
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The old spots have moved around a bit, there's not much new stuff following on behind.

No close-ups this time  🙁

 

Sun (19/05/2013).
Six stitched images from the DMK mono camera on the C80ED-R, Baader Solar Film filter.

 

What SOHO (the Solar and Heliospheric Observatory) saw.

 

Observing Report 16th May 2013 (More spots than a greasy teenager)

Posted by on May 17th 2013 in Astrostuff, Observing Reports, Pics
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In contrast to today, yesterday morning was clear, warm and calm. The Sun was putting on a fine display of spots:

 

Sun (16/05/2013).
Six stitched images from the DMK mono camera on C80ED-R, Baader Solar Film filter.

 

What SOHO (the Solar and Heliospheric Observatory) saw.

 

Active Region 1748 (16/05/2013).
DMK mono camera with 2.25x Barlow on C80ED-R, Baader Solar Film filter.

 

Active Region 1745 (16/05/2013).
DMK mono camera with 2.25x Barlow on C80ED-R, Baader Solar Film filter.

 

Active Regions 1742, 1743 and 1752 (16/05/2013).
DMK mono camera with 2.25x Barlow on C80ED-R, Baader Solar Film filter.

 

Active Region 1744 (16/05/2013).
DMK mono camera with 2.25x Barlow on C80ED-R, Baader Solar Film filter.

 

Active Regions 1746, 1747, 1750 and 1751 (16/05/2013).
DMK mono camera with 2.25x Barlow on C80ED-R, Baader Solar Film filter.

 

Active Regions 1741 and 1749 (16/05/2013).
DMK mono camera with 2.25x Barlow on C80ED-R, Baader Solar Film filter.

 

Observing Report 1st May 2013 (Mayday sunspots)

Posted by on May 4th 2013 in Astrostuff, Observing Reports, Pics
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Better late than never...

Plenty of significant active regions on display.

Things have moved on (around) a bit since then but they're still worth a photo just before sunset.

There'll be no pics taken here today - we're under typical Bank Holiday Weekend rainclouds  🙁

 

Sun (01/05/2013).
Six stitched images from the DMK mono camera on C80ED-R, Baader Solar Film filter.

 

Active Regions 1732, 1734 and 1736 (01/05/2013).
DMK mono camera with 2.25x Barlow on C80ED-R, Baader Solar Film filter.

 

Active Region 1731 (01/05/2013).
DMK mono camera with 2.25x Barlow on C80ED-R, Baader Solar Film filter.

 

Active Regions 1730 and 1735 (01/05/2013).
DMK mono camera with 2.25x Barlow on C80ED-R, Baader Solar Film filter.

Observing Report 23rd April 2013 (Another huge sunspot group)

Posted by on April 24th 2013 in Astrostuff, Observing Reports, Pics
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AR1726 is another biggie - more than 150,000 km from end to end.

It's "going around the corner" due to the Sun's rotation, so current views of it are foreshortened.

It makes an interesting target just before sunset, if you do pop out for a peek at it please mind yer eyes!

 

Active Region 1726 (23/04/2013).
DMK mono camera with 2.25x Barlow on C80ED-R, Baader Solar Film filter.

Observing Report 2nd April 2013 Part 2 (Bigger Sunspots)

Posted by on April 5th 2013 in Astrostuff, Observing Reports, Pics
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As promised, sunspots with added bigness.

AR1711 is huge (run your mouse over the pic to see a pasted-in Earth for comparison), in the full-size version you can even see some vague detail down inside the dark region (the umbra):

 

Active Region 1714 (02/04/2013).
DMK mono camera with 2.25x Barlow on C80ED-R, Baader Solar Film filter.

 

 

Active Region 1704 (02/04/2013).
DMK mono camera with 2.25x Barlow on C80ED-R, Baader Solar Film filter.

 

 

Active Region 1711 (02/04/2013).
DMK mono camera with 2.25x Barlow on C80ED-R, Baader Solar Film filter.

Observing Report 2nd April 2013 Part 1 (Sunspots)

Posted by on April 3rd 2013 in Astrostuff, Observing Reports, Pics
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See? This is what happens when you decide to keep your winter beard - three consecutive days of almost uninterrupted dawn-to-dusk sunshine.

🙄

Here's a stitched pic from yesterday morning, feel free to click it to get to the bigger version:

 

Active Regions 1704, 1707, 1708, 1710, 1711, 1713 & 1714 (02/04/2013).
DMK mono camera @ prime focus on C80ED-R, Baader Solar Film filter.

 

I grabbed some more shots of the main sunspot groups at a higher magnification, it'll take me a while to process the stuff so I'll put the results in a "Part 2" post as and when.

Observing Report 13th January 2013 (Big sunspot group)

Posted by on January 13th 2013 in Astrostuff, Observing Reports, Pics
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This was the first observing session of the year, primarily because it's been the first time we've had clear skies. Prominent in the image is Active Region 1654. This is a huge group of sunspots, currently about 180,000 km from end to end - that's about 14 Earth-diameters, or, in proper units, about 657 x the length of Wales.

Mouseover the image to see how tiny the Earth would look next to these things, and click the image to see it thrice bigger:

 

Active Region 1654 (13/01/2013)

3000 stacked frames, DMK mono CCD camera at prime focus on the C80ED-R, Baader Planetarium AstroSolar™ Safety Film (ND 3.8) with #58 Green and IR-cut filters

Observing Report 26th July 2012 (Sunspots)

Posted by on July 27th 2012 in Astrostuff, Observing Reports, Pics
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Managed to get a few sunspot shots during a short break from trimming the hedges yesterday.

I used a less-dense solar filter (ND 3.8 as opposed to the ND 5.0 that I've used before) which lets through more light allowing much shorter exposures in order to "freeze" the seeing. I also had a play with various magnifications - 1x (prime focus), 2x (Powermate) and 4x (Powermate + Barlow).

All 50/4000 stacked frames, DMK mono CCD camera on the C80ED-R, Baader Planetarium AstroSolar™ Safety Film (ND 3.8) with #58 Green and IR-cut filters.

There's a reference image at the end in case you're wondering what's where:

 

Active Regions 1528, 1529, 1530 & 1532 (26/07/2012).
1x (prime focus).

 

Active Regions 1529, 1530 & 1532 (26/07/2012).
2x (Powermate).

 

Active Region 1532 (26/07/2012).
4x (Powermate + Barlow).

 

Active Region 1530 (26/07/2012).
4x (Powermate + Barlow).

 

Active Region 1529 (26/07/2012).
4x (Powermate + Barlow).

 

Active Region 1528 (26/07/2012).
4x (Powermate + Barlow).

 

Active Region 1531 (26/07/2012).
4x (Powermate + Barlow).

 

Active Region 1526 (26/07/2012).
4x (Powermate + Barlow).

 

Reference image from SOHO.

 

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