Tag Archives: solar

Solar imaging – satellite transit (13/12/14)

Today we had visitors over for lunch. As it was sunny with clear skies, I decided to setup for solar imaging. The sun was particularly interesting today, as there were many sunspots visible. Here are some of the images.

Sunspots from 13/12/14
Sunspots from 13/12/14
Sunspot AR2230
Sunspot AR2230
Sunspots AR2235 (left) and AR2237 (right)
Sunspots AR2235 (left) and AR2237 (right)
Sunspot AR2234
Sunspot AR2234

While I was chatting away with my friend, I noticed a black object moving through the solar disc. I managed to take a few images, and then paused for a short moment, before taking another few images. Then I looked at the live view on the camera to see what I had managed to capture. There was a black dot moving past the Sunspot AR2230, which was where the magnified view was trained on.

'Black dot' likely a satellite close to Sunspot AR2230
‘Black dot’ likely a satellite close to Sunspot AR2230

The image below is one of the few I shot after the initial burst, showing the satellite had moved nearly to the edge of the sun.

Satellite transitting past the sun
Satellite transitting past the sun

The animated .gif below was created from the 10 images I managed to capture in the first burst, showing the movement of the satellite through the solar disc.

boontang_3As I have said before, the sun is so interesting – you can never tell what you will see when you look up at it. BTW, my wife did ask me – could it be a UFO? Nah! It must be a satellite. (Addendum 15/12/14 – My friend has suggested that this could be a weather balloon drifting past).

Boon

Solar imaging – 10/12/14

There were clear skies for most of today, and the sun was in position for me to do some solar imaging in the early afternoon. The seeing was reasonable but not very good. Here are the images from today.

Sun 10/12/14 - multiple sunspots visible
Sun 10/12/14 – multiple sunspots visible
Sunspot AR2227 (large) and AR 2231 (small)
Sunspot AR2227 (large) and AR 2231 (small)
Sunspot AR2230
Sunspot AR2230
Sunspot AR2230
Sunspot AR2230

Boon

Solar imaging 18/11/14 (something special)

I recently purchased the Tele Vue T2 adapter for the Tele Vue 1.25″ powermate, as I had borrowed my friend’s 2.5X powermate for solar imaging. I wanted to get magnified views of the sunspots using the Skywatcher ED100 (900mm focal length F9); this is not possible with my Celestron 2X Barlow. Using my Olympus E-P5, the effective focal length (EFL) of this telescope would be 1800mm (2x crop factor). But with the 2.5X power mate, it would be EFLĀ 4500mm. Continue reading Solar imaging 18/11/14 (something special)