Astronomy every Thursday
NEVER LOOK AT THE SUN DIRECTLY. Please click here for solar observing safely.
A lovely collection of white light images of the Sun taken by member Jim Burchell in May & June this year; showing several large sunspots. Jim took the images using a Pentax KP camera attached to a 102 mm Altair refactor fitted with a solar filter and then processed in Snapseed.
NEVER LOOK AT THE SUN DIRECTLY. Please click here for solar observing safely.
After a fantastic night of observing the Aurora, several CMHASD members took the opportunity to observe the huge sunspot AR664 that caused it, at the Parsonage Lane Pavilion the following day. Below are a selection of photos from that afternoon.
The white light image of the Sun below was taken by member George Buckberry using a Canon EOS760D attached to a Celestron MakC90 fitted with a Baader 5.0ND Solar filter. All mounted on a Sky-Watcher Alt-Az Mount and Tripod.
Thank you to Diane, Sonia & Jim for sharing your photos.
NEVER LOOK AT THE SUN DIRECTLY. Please click here for solar observing safely.
On Sunday 5th May 2024 the team from CMHASD set themselves up for the first of our two Solar Observing events at Hall Place & Gardens and what a glorious day it was to be out solar observing.
Members of the public were invited to do some solar observing which was enthusiastically accepted by those who were keen to look at the sun using our scopes. The Sun put on a good display having several complex sunspots for the public to view.
Five telescopes were set up to observe the Sun safely. First; a table-top Celestron Firstscope 76mm Newtonian fitted with a home-made solar filter through which many of the public were able to see the numerous sunspot groups, this was a low budget telescope and easy to use.
There were 3 smart scopes set up; two Seestar S50's and a Dwarf II. The 2 images of the Sun below were taken by the smart scopes. The first was taken by CMHASD Secretary Dr Mike Rushton using a Dwarf II smart scope and the second taken by member Terry Miles using a Seestar S50 smart telescope. Both images were captured whilst Mike & Terry were helping at Hall Place.
Dwarf II smart telescope (1" aperture!) 30 x 1/200sec subs at gain 0 with a ND6 Solar filter.
The fifth telescope set up was a Celestron C90 Maksutov Cassegrain telescope, focal length 1250mm, 90mm objective lens (corrector plate) using a 32mm eye piece which gave a full view of the Sun's disk. This was on a Sky Watcher heavy duty tripod on which was mounted a William Optics wedge on which was mounted a iOptron Sky Guider Pro tracking mount and finally the Mak mounted on top. The Celestron was set up for visual observation only so fitted with a Baader 5ND solar filter, no imaging was done.
Our pitch was on the grass at the end of the path from the main entrance to the gardens, and we were quite close to the hard standing outside the art gallery and café. With the date being chosen to coincide with the Farmers’ Market, we experienced good foot-fall and our flag was prominent for visitors as they arrived.
The Crayford team returns again later in July for our second session but there’s no doubt this first visit to Hall Place for Solar Observing in 2024 was a great success and the Society would like to thank all those members who helped on the day :-D
Thank you also to John Archer, John Howarth, Dr Mike Rushton and Terry Miles for sharing your photos with us.
*** CMHASD will be back at Hall Place on Sunday 7th July 2024 to do some more Solar Observing with the public. Please do come and join us! ***
NEVER LOOK AT THE SUN DIRECTLY. Please click here for solar observing safely.
Two fab images of our Sun taken by member Jim Burchell on the 21st & 29th April 2024. Details of how Jim captured the Sun is on the 1st image. Please note a solar filter was used too.
Sun on 21st April 2024 by Jim Burchell
For comparison; below is the Sun with the Sunspots numbered taken from Spaceweather.com on 21st April 2024.
Ref:https://www.spaceweather.com/archive.php?view=1&day=21&month=04&year=2024
The Sun on 29th April 2024 by Jim Burchell
For comparison; below is the Sun with the Sunspots numbered taken from Spaceweather.com on 29th April 2024.
Ref:https://www.spaceweather.com/archive.php?view=1&day=29&month=04&year=2024
NEVER LOOK AT THE SUN DIRECTLY. Please click here for solar observing safely.
A super collection of Sun images taken on the 18th April 2024.
The 1st image below was taken by Dr Mike Rushton using a Dwarf II smartscope. Mike took 30 x 1/200sec images which were stacked, gain 0 + solar filter.
For comparison, below is the Sun image from Spaceweather.com on the 18th April and has the Sunspots numbered.
The next 5 images below of the Sun were taken by member Simon Dawes. Details of how Simon acquired his images are on some of the photos.
NEVER LOOK AT THE SUN DIRECTLY. Please click here for solar observing safely.
A super image of the Sun taken on 24th March 2024 by member Honor Wheeler.
Honor captured the white light image of the Sun using an ED80 Refractor fitted with a solar filter, EQ3-pro Synscan mount, 2x Barlow, Canon M6 II. Exp1/6400s and ISO400.
Below Honor's image is an image of the Sun on the same day with the sunspots labelled taken from Spaceweather.com.
Photo Ref: https://www.spaceweather.com/archive.php?view=1&day=24&month=03&year=2024
Spaceweather.com reported ''Yesterday, the sun produced a solar flare so strong, it took two sunspots to make it. Sunspots AR3614 and AR3615 exploded in tandem on March 23rd (0130 UT), directing their fire straight at Earth. A National Solar Observatory telescope in Australia recorded the double blast.
The explosion from AR3614 (top) was so violent it seemed to rip the fabric of the sun, while AR3615 (bottom) followed very close behind with a less intense blast of its own.
While this may seem like an incredible coincidence, it probably didn't happen by chance. Researchers have long known that widely-spaced sunspots can explode in tandem. They're called "sympathetic solar flares." Occasionally, magnetic loops in the sun's corona fasten themselves to distant pairs of sunspots, allowing explosive instabilities to travel from one to the other. This has apparently happened to AR3614 and AR3615.
Some sympathetic flares are so much alike, they are considered to be twins. Yesterday's double-blast was not a perfect twin, but close enough. It shows that the two sunspots are linked, raising the possibility of more double-flares...''
The NASA Solar Dynamics Observatory captured the sequence and it can be viewed in this movie.
NEVER LOOK AT THE SUN DIRECTLY. Please click here for solar observing safely.
A super image of the Sun taken by member Jim Burchell. The image is showing an extremely large Sunspot group AR3615 in the middle of the Sun.
Jim took the single image using a Pentax KP camera attached to a 102 mm Altair refactor fitted with a solar filter and then processed in Snapseed.
NEVER LOOK AT THE SUN DIRECTLY. Please click here for solar observing safely.
A splendid image of the Sun taken on the 25th February 2024 by member Jim Burchell. Jim captured the image using a Seestar S50 smart scope fitted with a solar filter and processed in Snapseed. The giant sunspot AR3590 that can be seen on the Sun in Jim's image was more than ten times wider than Earth when the image was taken.
