Monday, 4 October 2021

Calcium Overview - 3rd October

CaK-FD-DS-colour ar12880-CaK-DS-40mm-f25-290mm-colour New-AR-CaK-DS-40mm-f25-290mm-colour Plage-CaK-DS-40mm-f25-290mm-colour The seeing was decidedly ropey, and as I was struggling at 90mm in Ha, I decided to play it safe and to drop right back to 40mm in CaK. Whilst the resolution isn't great it is nice to see the features on view.

Ha Sun 3rd October

Plage-Ha-DS90-2x-cemax-290mm-colour AR12880-Ha-DS90-2x-cemax-290mm-colour It was nice to get some autumn sunshine, and despite poor seeing I just about got some usable images from the Coronado DS90, 2x Cemax barlow and the ZWO290mm camera. It's good to see all this activity on the sun again.

Monday, 20 September 2021

Sunday Proms! 19th September

Prom 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.

Sunday, 19 September 2021

Ha Full Disk 18th September

Ha-FD-SS-Apollo-Blocker-Colour 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!

Monday, 6 September 2021

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. Ha-FD-DS50
Ar-Prom-Ha-DS90-f18-290mm ar12866-ar12868-Ha-DS90-f18-zwo290mm ar12864-Ha-DS90-f18-zwo290mm ar12863-Ha-DS90-f18-zwo290mm It's nice to see activity finally picking up properly again on the sun!

Friday, 30 July 2021

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. Ha-FD-DS AR12847-Ha-DS90-f16-290mm AR12846-Ha-DS90-f16-290mm

Calcium Sun 22nd July

More good weather, more good seeing, this time the sun in Ha and also CaK: AR12842-CaK-100mm-f28-290mm-bw ar12842-Ha-127mm-f26-IMX174-bw AR12845-CaK-100mm-f28-IMX174-bw ar12845-Ha-127mm-f26-IMX174-bw AR12846-CaK-100mm-f28-290mm-bw ar12846-Ha-127mm-f26-IMX174-bw AR12846-Ha-DS-90mm-f16-290mm-bw ar12847-ar12849-Ha-127mm-f26-IMX174-bw ar12847-CaK-100mm-f28-290mm-bw AR12848-CaK-100mm-f28-290mm-bw ar12848-Ha-127mm-f26-IMX174-bw AR12849-CaK-100mm-f28-290mm-bw CaK-FD-60mm-f16-ICX814-bw Ha-FD-DS-50mm-ICX814-bw Plage-Ha-127mm-f26-IMX174-bw

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! AR12842-CaK-100mm-f28-290mm ar12845-CaK-100mm-f28-290mm ar12846-CaK-100mm-f28-290mm ar12847-CaK-100mm-f28-290mm ar12848-CaK-100mm-f28-290mm CaK-FD-50mm-20-ICX814

Calcium Sun 20th July

A whole booty of images from this day at a range of scales! ar12842-CaK-60mm-f28-290mm AR12842-CaK-120mm-f28-290mm ar12845-CaK-60mm-f28-290mm AR12845-CaK-120mm-f28-290mm ar12846-caK-60mm-f28-290mm ar12846-CaK-120mm-f28-290mm New-AR-Cak-60mm-f28-290mm New-AR-CaK-120mm-f28-290mm plage-CaK-60mm-f28-290mm Plage-CaK-120mm-f28-290mm CaK-FD-60mm-f16-ICX916M

CaK Sun 23rd June

CaK-FD-collour ar12833-cak-30mmf20-290mm-colour new-activity-cak-colour