Jupiter - Mercury

 

Jupiter - Mercury "close encounter", about 3,5° above the horizon.

Setting: Nikon D7500 - lens 18-200 f/5.6 ISO400 1/15s

Editing using CS4

Reworking M81 and Needle Galaxy using Refine Edges and Lab Color

I reworked my images of Galaxy M81 (Bode's Galaxy) and the Needle Galaxy (NGC4565). Starting from my APP stacked image (Tiff) I used color range (NL kleurbereik) and Refine Edges (NL Hoeken verfijnen) to select the galaxy. Next I changed the brightness, contracts and colors. The finalize I changed from RGB to Lab Color and change brightness again using "bringhtness Channel". Before saving I RGB was selected again. Noise was reduced using DeNoise AI.

ATT Essen Program Available

On May 13, the biggest European astronomy fair ATT (Astronomie und Techniktreff) will take place in Essen (Germany). Today the organisation presented the program - see this link

Beside the many exibitors and meeting astronomy friends, I'm looking out to the lecture of Ulrich von Kusserow.

See also lectures by Ulrich von Kusserow in 2018 and 2019 

Formation of the magnetic solar system (Ulrich von Kusserow)

In this lecture, the variety of possible influencing factors of cosmic magnetic fields on the formation and early development of our solar system and other sun-like star systems is explained as clearly as possible using colorful illustrations, animations and video sequences. After a short introduction, the central events in the course of the history of knowledge acquisition on this topic will be presented in more detail. The following section deals with the great current importance of magnetic processes in the interior and atmosphere of the sun, in the surrounding heliosphere shaped by the magnetic solar wind, and the fascinating processes in the magnetospheres of the planets and moons, asteroids and comets in our solar system .

The fourth section explains how so-called accretion disks form around such stars, in which magnetic turbulence and, in particular, magnetized winds emanating from these disks ensure the effective removal of angular momentum and thus the transport of matter to increase the stellar mass and the formation of the planets. In the last section, the possible magnetic influence on the increasing compression and migration of dust particles, rock-like objects and planetesimals and finally on the formation of the magnetic planets in our solar system is considered.

50 days to ATT Essen

 

The next ATT (biggest Astronomy fair in Europe) is scheduled on May 13, 2023 and will be organised in Essen (Germany).

GPT 4

 

Open AI with Chat GPT released GPT-4 . Have fun!

First day of Spring

Today, the first day of spring starts at March 20 at UT21h24 (local time 22h24).

Capturing Cosmic Rays with DSLR Nikon D7500

I read an article (cosmic rays) on facebook on capturing of cosmic rays using a DLSR. I was wondering if I could reproduce this at home using my Nikon D7500 with CMOS sensor. I set up my Nikon  (see settings) and found some "strikes" in my images which I believe could be linked to cosmic rays and even Muons.

Muons are part of the secundary cosmic rays still having huge energy up to 4GeV. We can expect 1 muon count/cm2/min at sea level. Having a APS-C sony sensor and planning for 10min exposure, this would mean about 30 hits. When analyzing my pictures I see a lot of dots of which some are hot spots. I counted about 40 counts on two images without the hotspots.

The double rings on the image are identified as hotspots. 

To compare, the energy of photons are 4x10exp-19 Joule (3.5eV), muons have an energy (when reaching Earth) of 6.4x10exp-10 Joule (4GeV) or 1.600.000.000 higher. 

Setting:

- Nikon D7500, without lens, but with cap and installed in a carton box

- Camera and thus sensor, horizontal positioned

- Lights: 12x600s, ISO3200

- Software : N.I.N.A. , APP, CS4

Some literature :
- Catching Cosmic Rays with DSLR.

- Capturing Cosmic Ray with a DSLR Camera