Sunday Proms! 19th September

The gaps were very fleeting on Sunday, and there was a lot of haze, but there were some lovely proms and I did get this image with the Coronado DS90, 2x Cemax barlow and the ZWO290mm camera. I was really ;ucky that before imaging I was taking the view in through the eyepiece and saw a passenger jet transit the sun.

Ha Full Disk 18th September

A quick full disk of a rather quiet sun taken with the Lunt LS50C etalon, Coronado BF15, 2x cemax barlow and a 1.7a blocker by Apollo Lasky. The addition of the blocker clearly increases contrast on the disk, with the effect of the etalons bandpass being reduced by 0.1-0.2a. The filaments had more contrast and were darker, and the surface had a more textured appearance. Certainly something to explore the use of more!

Sunday Sunshine 5th September

A busy summer and less than summery weather at times has meant i've not been able to image as much as I like, however a cloudy forecast for Sunday was actually the reverse and clear skies prevailed. The full disk was taken with the double stacked 50mm scope, and the close ups with the double stacked 90mm scope.
It's nice to see activity finally picking up properly again on the sun!

Ha Sun 26th July

I've done a lot of calcium images lately, and with a drop in seeing quality decided to shift wavelengths down to Ha for a double stack view of the various filaments and plage that were visible.

Calcium Sun 22nd July

More good weather, more good seeing, this time the sun in Ha and also CaK:

Calcium Sun 21st July

The good weather and good seeing carried on, so I carried on imaging the sun is CaK light as there were plenty of features to be looking at!

Calcium Sun 20th July

A whole booty of images from this day at a range of scales!

CaK Sun 23rd June

CaK in Average Seeing 19th July

Taken at 80mm f22 with the ZWO290mm camera.

CaK in Reasonable Seeing 18th July

Taken at 120mm f20 with the ZWO290mm camera: