Giant Sunspot AR3664

The giant sunspot had been producing strong x-ray flares and produced a number of coronal mass ejections, so I had decided to bring the refractor out and take a whole disc picture of the sun using the Nikon D750 and a 2x times converter.

Sunspot AR3664 Astrophysics 127mm f/8, 2x converter, Nikon D750a

Solar Eclipse and Airplane transit

The partial solar eclipse on October 25th happened conveniently during lunch break, and the skies were perfectly clear. I opted for the big refractor (Astro-Physics 127mm f/8) combined with a 2x Nikon teleconverter in the hope to capture some detail in the form of sunspots on the solar disc.

I setup the camera to record a set of timelapse images, taking a picture every 20s. After I while I also setup the 60mm refractor to be able to observe the eclipse visually.

Shortly after maximum eclipse I noticed an airplane with contrail heading to the area of the sky where the sun was located. From past experience I thought that it will miss the sun (the apparent diameter of the sund and moon in the sky is only about half a thumb’s width at arm-length), but switched the camera to video and started recording.

Read More

The Moon and Sun two weeks before the 2017 solar eclipse

Two weeks before the moon will eclipse the sun, the moon was partially eclipsed by the Earth’s shadow

I had to turn around, when the road to my observing location was blocked, then I rushed to another spot, to find clouds on the horizon blocking the view for quite a while. But finally the still eclipsed moon emerged from the clouds and I was able to take some quick shots.

I used my 80mm refractor and a 300mm lens for the images.

Read More

The sun 2017-01-28

The sun shows only few spots when near solar minimum. Today the Spots AR2629 and 2628 were clearly visible.

Astrophysics 127mm f/8 with Nkon TC-14EII and Nikon D750 Baader solar film (photographic density).

Giant Sunspot AR2456

These days the large sunspot AR2456 is very prominent on the sun’s disc: