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

Workproces astrophotography using ASIair Plus

 

My workprocess when using TAL200K with ASIair for deepsky imaging. 

44 Nysa in M44

This weekend, asteroid 44 Nysa could be observed when crossing M44. M44 or Beehevi Cluster, is a bright open star cluster.

Setting:

TLAPO80/480 with ASI2600MC.

Filter Optolong L-Pro

Exposure : 37x60s (FITS)

Software: SharpCap, ASTAP, CS4

The best fits files were stacked using ASTAP. Stacking was done both on stars as on 44 Nysa. 

Venus, Uranus & Pleiades

Venus, Uranus with Pleiades.

Venus, Moon and Pleiades

During my vacation in Nieuwpoort I could capture Venus, the Moon with Pleiades. I used my Nikon D7500 with Sigma 18-35mm f/1.8 lens.

Jef Ongena lecture on Georgens Lemaître

Jef Ongena's lecture on Georges Lemaître sheds a clear light on the origins of the Big Bang theory. He explains how the Belgian priest and astronomer was the first to realize that the universe is not static, but constantly expanding from a primeval atom. In doing so, Ongena corrects the historical narrative in which Edwin Hubble often receives all the credit for this discovery. During his presentation, he clarifies how Lemaître kept science and faith strictly separate to protect the integrity of both fields. The speaker further connects these historical insights with modern astronomical observations of cosmic background radiation. The result is a compelling account of intellectual courage and the Belgian contribution to our fundamental knowledge of the cosmos. Thanks to Ongena's accessible style, this complex subject becomes understandable for a broad audience. This ensures that Lemaître's legacy remains alive in contemporary scientific discussions about the beginning of everything.

Selfie with Jef Ongena

Some references:

The difference between f/1.8 and f/3.5

Since a couple of months I own a Sigma 18-35mm f/1.8 lens. I know this lens captures more light but how much more and what about comparing with my Nikon 18-200mm f/3.5-5.6 lens.

I captured the same scene with same settings:

- Nikon D7500

- Exposure time 1.3s

- ISO 800

The difference, which is significantly can be seen in the picture below.

The Sigma lens f/1.8 captures 4 time more light as my Nikon 18-200mm lens on 18mm f/3.5.

So f/numbers do matter :)