Wednesday, May 13, 2026

My first Meteorite Sikhote-Alin USSR 1947

The Sikhote-Alin meteorite fall remains one of the most spectacular events in modern astronomical history, occurring on the morning of February 12, 1947, in the Primorye region of Russia (USSR). Unlike many meteorite falls that occur over uninhabited oceans or deserts, this event was witnessed by numerous people who saw a fireball brighter than the sun descending over the Sikhote-Alin Mountains. The bolide entered the atmosphere at a high velocity and began to break apart under the immense pressure of the descent. The final explosion was so powerful that it was heard hundreds of kilometers away, leaving a thick smoke trail in the sky that persisted for several hours.

When the meteorite disintegrated, it created a massive debris field known as a strewn field, covering a significant area of the dense forest. The impact was violent enough to produce over a hundred craters, the largest of which measured twenty-six meters in diameter. Because the parent body was a massive iron meteorite, it did not simply burn up; instead, it showered the taiga with tons of iron fragments. Explorers and scientists who reached the site discovered a scene of total devastation, with shattered trees and jagged metal shards embedded in the ground.

Collectors generally distinguish between two types of specimens from this fall. The first type is the individual meteorite, which traveled through the atmosphere long enough to develop a smooth surface known as a fusion crust, often covered in thumbprint-like indentations called regmaglypts. These are prized for their aerodynamic appearance. The second type, which is frequently found at major events like the ATT fair in Essen, consists of shrapnel fragments. These are jagged, twisted pieces of iron that were torn apart by the force of the main explosion or upon impact with the frozen ground.

Owning a piece of Sikhote-Alin is special. The Sikhote-Alin meteorite is classified as an iron meteorite belonging to the meteorite group IIAB and with a coarse octahedrite structure. It is composed of approximately 93% iron, 5.9% nickel, 0.42% cobalt, 0.46% phosphorus and 0.28% sulfur, with trace amounts of germanium and iridium. Minerals present include taenite, plessite, troilite, chromite, kamacite and schreibersite 

When you hold a piece purchased at a specialized fair like the ATT in Essen, you are holding a fragment of a planetary core that formed billions of years ago, only to be violently delivered to Earth in a remote Russian forest less than a century ago. It serves as a tactile connection to the raw power of our solar system and a permanent reminder of the day the sky literally fell in eastern Siberia.



Sunday, May 10, 2026

Aurora Flatfield ¨Panel

At the annual ATT Essen I purchased a second hand flatfield panel. The Aurora Flatfield Panel with a diameter of  315 mm and an 12V Inverter works perfect with my ASIair. 
This flatfield shield will serve to make flats. 




Saturday, May 9, 2026

Supernova SN2026kid in NGC5907

NGC 5907 is spiral galaxy located in constellation Draco and about 46,5 million lightyears away from Eath. It's magnitude is 10.3 and is commonly called the Splinter Galaxy or Cat Scratch Galaxy.
On April 22, a supernova was detected in NGC5907; a supernova type II, and was noted as SN2026kid. This is the second supernova, the first one in 1940.


Capturing the supernova using TAL200K f/8.5 with ASI2600MC on May 1 and May 2. 

- Total integration time 2h40min (Lights 32x300s).
- Bias, Darks
- Flats using Aurora Flatfield Panel Flat315R with ASIAir. 

Processing with APP and editing using CS4 and DeNoise AI.


 


Wednesday, May 6, 2026

300.000 Visitors on my Blog. Thank You

 


Today my blog reached 300.000 visitors. Thank you for keep reading my blogposts.

Tuesday, May 5, 2026

Saturday, May 2, 2026

Supernova type 2 SN2026kid in NGC5907

NGC 5907 is spiral galaxy located in constellation Draco and about 46,5 million lightyears away from Eath. It's magnitude is 10.3 and is commonly called the Splinter Galaxy or Cat Scratch Galaxy.
On April 22, a supernova was detected in NGC5907; a supernova type II, and was noted as SN2026kid. This is the second supernova, the first one in 1940.

I could image the supernova using TAL200K f/8.5 with ASI2600MC.



Polaralignment and Staralignment using SharpCap
Capturing with ASIAir Plus
Filter : Optolong L-Pro
Exposure : 10x300s (with guiding)
Software: SharpCap, ASIAir Plus, APP, DeNoise AI, CS4


Friday, May 1, 2026

Workproces astrophotography using ASIair Plus

 


My workprocess when using TAL200K with ASIair for deepsky imaging.