What's New?

Fun

Bristol Leader Chart
Bristol Leader Chart
Cisco Firewall
Those of you who have to maintain ASA software with multi-context on Firepower hardware may understand ...
Gib einem Mann einen Fisch
Gib einem Mann einen Fisch, und du ernährst ihn für einen Tag. Bring einem Mann das Phishing bei, und du ernährst die gesamte IT-Sicherheitsbranche ein Leben lang.
20241208_five_stages_of_software_updates.jpg
20241208_five_stages_of_software_updates.jpg

Comets

Comet C/2020 F3 Neowise with Ion Tail
Despite some cirrus clouds passing over the sky I could create this composite of comet Neowise. It shows the travel distance of the comet during a time of 20 minutes. Reprocessed 2024 using PixInsight: Stack and alignment of 50 pictures (plus dark, flat, bias) and tracking on comet core. Postprocessing with Photoshop. ISO 800, 20 seconds exposure time, interval 25 seconds. Nikon D850 with Nikkor 300mm 2.8D at f/2.8. 19 July 2020, Bözberg.
Comet C/2023 A3 Tsuchinshan-ATLAS
Shot on 13 October 2024 near Cheisacher Observatory in Aargau. Unfortunately the comet drowned in the cirrus clouds afterwards. I could have used 1s exposure time without star trails. — EXIF: Nikon D850; Δt=1/2 s; f=300 mm; f/2.8; ISO 3200; 2024-10-13 19:44:36
Comet C/2023 A3 Tsuchinshan-ATLAS
Shot on 13 October 2024 near Cheisacher Observatory in Aargau. Unfortunately the comet drowned in the cirrus clouds afterwards. Unguided capture on a tripod. I could have used 1s exposure time without star trails. — EXIF: Nikon D850; Δt=1/2 s; f=300 mm; f/2.8; ISO 3200; 2024-10-13 19:47:20
Comet C/2023 A3 Tsuchinshan-ATLAS
Shot on 14 October 2024 near Cheisacher Observatory in Aargau. Comet C/2023 A3 Tsuchinshan-ATLAS was mostly behind clouds. One can see trails of those bloody Elon Musk Starlink satellites. Single exposure guided on a Vixen GP-D2 equatorial mount. — EXIF: Nikon D850; Δt=20 s; f=300 mm; f/2.8; ISO 200; 2024-10-14 20:07:49
Comet C/2023 A3 Tsuchinshan-ATLAS
Shot on 14 October 2024 near Cheisacher Observatory in Aargau. Comet C/2023 A3 Tsuchinshan-ATLAS was mostly behind clouds. One can see trails of those bloody Elon Musk Starlink satellites. Single exposure guided on a Vixen GP-D2 equatorial mount. — EXIF: Nikon D850; Δt=20 s; f=300 mm; f/2.8; ISO 200; 2024-10-14 20:10:19
Comet C/2023 A3 Tsuchinshan-ATLAS
Shot on 14 October 2024 near Cheisacher Observatory in Aargau. Comet C/2023 A3 Tsuchinshan-ATLAS was mostly behind clouds. One can see trails of those bloody Elon Musk Starlink satellites. Single exposure guided on a Vixen GP-D2 equatorial mount. — EXIF: Nikon D850; Δt=20 s; f=300 mm; f/2.8; ISO 400; 2024-10-14 20:13:42
Comet C/2023 A3 Tsuchinshan-ATLAS
Single frame of a timelapse showing setting comet C/2023 A3 Tsuchinshan-ATLAS. The full moon illuminated the landscape and the comet was barely visibly by naked eye. — EXIF: Nikon D850; Δt=6 s; f=35 mm; f/2.8; ISO 400; 2024-10-17 19:46:34
Comet C/2023 A3 Tsuchinshan-ATLAS
Single frame of a timelapse showing setting comet C/2023 A3 Tsuchinshan-ATLAS. The full moon illuminated the landscape and the comet was barely visibly by naked eye. — EXIF: Nikon D850; Δt=6 s; f=35 mm; f/2.8; ISO 500; 2024-10-17 20:35:04
Comet C/2023 A3 Tsuchinshan-ATLAS
Creating a timelapse showing setting comet C/2023 A3 Tsuchinshan-ATLAS — EXIF: iPhone 15; Δt=1 s; f=5.96 mm; f/1.6; ISO 1600; 2024-10-17 19:47:08
Comet C/2023 A3 Tsuchinshan-ATLAS
Comet C/2023 A3 Tsuchinshan-ATLAS — EXIF: iPhone 15; Δt=1/2 s; f=5.96 mm; f/1.6; ISO 3200; 2024-10-17 20:24:06
Comet C/2023 A3 Tsuchinshan-ATLAS
Stack of only three pictures in a row without Starlink satellite trails or clouds. Each of 20s exposure time. See timelapse — EXIF: Nikon D850; Δt=20 s; f=300 mm; f/2.8; ISO 1600; 2024-10-20 19:47:11
Vixen GP-D2 with Comet C/2023 A3 Tsuchinshan-ATLAS
My equatorial mount Vixen GP-D2 with heavy tripod and mounted Nikon D850 with Nikkor 300mm f/2.8 telephoto lens pointing to comet C/2023 A3 Tsuchinshan-ATLAS. — EXIF: iPhone 15; Δt=1 s; f=5.96 mm; f/1.6; ISO 8000; 2024-10-20 19:50:32
Comet C/2023 A3 Tsuchinshan-ATLAS
Stack of 28 single frames using Pixinsight: Weighted Batch Preprocessing, Comet Alignment, Dynamic Background Extraction. Photoshop: Crop, Camera Raw Filter (Exposure, Blacks, Whites, Dynamic, Saturation, Structure, Clarity, Noise Reduction). Shot on 21 October 2024.

Stars

Milky Way Falera
Milky Way shot from the meadow near Mirasteilas Observatory Falera during the telescope meeting. Single frame from a timelapse sequence. — EXIF: Nikon D850; Δt=20 s; f=14 mm; f/1.8; ISO 1600; 2024-09-06 21:23:49
Setting Milky Way
Setting Milky Way at Hasliberg-Reuti. Single frame, guided with SkyWatcher StarAdventurer. — EXIF: Nikon D850; Δt=120 s; f=14 mm; f/1.8; ISO 800; 2024-11-02 0:27:02
Rising Orion
Rising constellation Orion above the forest near Hasliberg-Reuti. Single frame, guided with SkyWatcher StarAdventurer. — EXIF: Nikon D850; Δt=30 s; f=50 mm; f/2.8; ISO 3200; 2024-11-02 0:46:30

Bern

Sunset
Sunshet shot from Ahornalp. We waited there for the comet C/2023 A3 (Tsuchinshan-ATLAS) to appear but with no success. — EXIF: Nikon D850; Δt=1/1250 s; f=300 mm; f/11.0; ISO 100; 2024-10-11 18:37:21
Barn
A barn shot from Ahornalp. We waited there for the comet C/2023 A3 (Tsuchinshan-ATLAS) to appear but with no success. — EXIF: Nikon D850; Δt=1/6 s; f=300 mm; f/8.0; ISO 100; 2024-10-11 18:40:51
Sunset
Sunshet shot from Ahornalp. We waited there for the comet C/2023 A3 (Tsuchinshan-ATLAS) to appear but with no success. — EXIF: iPhone 15; Δt=1/3312 s; f=5.96 mm; f/1.6; ISO 50; 2024-10-11 18:17:37

Sun

Sun Hα, 10.5.2024
The great sunspot region in the right was origin of a coronal mass ejection causing polar lights.

Polar Lights

Polar Lights Ahornalp
Single frame of a timelapse during a rare G5 storm, taken from Ahornalp in Emmental, Switzerland. — EXIF: Nikon D850; Δt=1 s; f=14 mm; f/1.8; ISO 3200; 2024-05-10 22:14:58
Polar Lights Ahornalp
Single frame of a timelapse during a rare G5 storm, taken from Ahornalp in Emmental, Switzerland. — EXIF: Nikon D850; Δt=2 s; f=14 mm; f/1.8; ISO 3200; 2024-05-11 0:09:31
Polar Lights Ahornalp
Single frame of a timelapse during a rare G5 storm, taken from Ahornalp in Emmental, Switzerland. — EXIF: Nikon D850; Δt=1 s; f=14 mm; f/1.8; ISO 3200; 2024-05-11 0:25:36
Polar Lights Ahornalp
Single frame of a timelapse during a rare G5 storm, taken from Ahornalp in Emmental, Switzerland. — EXIF: Nikon D850; Δt=1 s; f=14 mm; f/1.8; ISO 3200; 2024-05-11 0:33:55
Polar Lights Ahornalp
Single frame of a timelapse during a rare G5 storm, taken from Ahornalp in Emmental, Switzerland. — EXIF: Nikon D850; Δt=1 s; f=14 mm; f/1.8; ISO 3200; 2024-05-11 0:35:11
Polar Lights Ahornalp
Single frame of a timelapse during a rare G5 storm, taken from Ahornalp in Emmental, Switzerland. — EXIF: Nikon D850; Δt=1 s; f=14 mm; f/1.8; ISO 3200; 2024-05-11 0:38:17
Polar Lights Ahornalp
Single frame of a timelapse during a rare G5 storm, taken from Ahornalp in Emmental, Switzerland. — EXIF: Nikon D850; Δt=1 s; f=14 mm; f/1.8; ISO 3200; 2024-05-11 0:50:37
Polar Lights Ahornalp
Single frame of a timelapse during a rare G5 storm, taken from Ahornalp in Emmental, Switzerland. — EXIF: Nikon D850; Δt=1 s; f=14 mm; f/1.8; ISO 3200; 2024-05-11 0:53:29
Polar Lights Ahornalp
Single frame of a timelapse during a rare G5 storm, taken from Ahornalp in Emmental, Switzerland. — EXIF: Nikon D850; Δt=1 s; f=14 mm; f/1.8; ISO 3200; 2024-05-11 2:16:26
Polar Lights Ahornalp
Single frame of a timelapse during a rare G5 storm, taken from Ahornalp in Emmental, Switzerland. — EXIF: Nikon D850; Δt=1 s; f=14 mm; f/1.8; ISO 3200; 2024-05-11 2:50:49
Polar Lights Ahornalp
Single frame of a timelapse during a rare G5 storm, taken from Ahornalp in Emmental, Switzerland. — EXIF: Nikon D850; Δt=1 s; f=14 mm; f/1.8; ISO 3200; 2024-05-11 3:06:32
Polar Lights Bözberg
Single frame of a timelapse taken on the following night on 11 May 2024. Unfortunately it was not such a spectacle. — EXIF: Nikon D850; Δt=1 s; f=14 mm; f/1.8; ISO 6400; 2024-05-11 22:46:36