Milky Way - Study Butte Texas

 

Image of Milky Way taken in Study Butte near Big Bend National Park (Texas).
Setting :

Nikon D7500 f/3.5 10mm ISO1600,  60s

Star Adventurer 2i on Manfrotto tripod

Editing : CS4

ATT Essen: One month to go

On May 4th, the annual European largest Astronomy Fair will take place in Essen (Germany). The ATT (Astronomie udnd Technicktref) is the place to be when looking for both new and second hand astronomy material.

See for more this link.

Sol'ex images : Impact of fps on X/Y ratio

Impact of exposure time on the X/Y ratio of Sol'ex solar image.
According SIMSPEC SHG version V1.6, by Ken Harrison the theoretical result of X/Y ratio 1 should be 4.43ms or 225fps for my set up : TLAPO60/360 f/6 with ASI290MM and scanspeed 16x.

When lowering the speed form 3.38 to 4.04, the shape moved from an ellips towards a circle. Not yet perfect but it proves the theory. 

Sun H-Alpha using Sol'ex

This morning the clouds dissapeared for about half hour, enough to make some images of the sun using my Sol'ex. 

Setting: 

* TLAPO60/360 f/6 with ASI290MM on Sol'Ex in H-alpha

* Software : Sharpcap 

* Tilt : +3.5 to -4,5°

* ROI : 1936 *276, Mono16, binning 1x1

* Exposure time between 294fps and 245fps
* Speed 16x 

* Analyzing : Inti and JSolex

* Editing and stacking : CS4, AS4!, AstroSurface

Comet 12P/Pons Brooks

Finally, I was able to set up my EQAZ6 mount to capture the Comet 12P/Pons Brooks. Unfortunately a lot of clouds but I could use 3 pictures of each 60s exposure time.

Setting: TLAPO80/480 f/6 with ASI2600MC

Filter: Optolong L-Pro

Lights: 3x60s

Software: SharpCap 4.1, APP, CS4

Sol'Ex article in Magazine "Heelal"

Our article of the Sol'Ex project with Helios collegue Walter, Johan and myself is published in magazine Heelal (vol 69, nr 4, april 2024, p11-13). For the full article see this link. 

150.000 Visitors and Comet 12P/Pons Brooks

 

Celebrating 150.000 visitors since the start of my blog and I'm doing this with my picture I took this evening of Comet 12P/Pons Brooks.

Setting: TLAPO80/480 f/6 with Nikon D7500

Filter:Optolong L-Pro

Mount: Manfrotto

Exposure : ISO16000, 2x2s

Software: DNG converter and CS4