overview for bistdunarrisch

M42 (Orion Nebula) in c/astrophotography

[–] bistdunarrisch 2 points 2 days ago (1 children)

The stripes are called walking noise/ pattern and often show up when not using a tracking mount and not using dithering.

Because not every pixel of your camera captures signal exactly equally bright you‘ll see this difference along the movement of the sky as it gets accumulated with every subframe. The only way to get rid of it is to vary the pixels for each part of the image after each exposure. This can be done by moving the camera slightly after each shot. This process is called dithering.

With good calibration frames the pattern can by minimized very slightly. Other than that the only real option for processing I can think of is to hide the pattern by not stretching the dark ares too much.

Other than that great image!

Boom bei Balkonkraftwerken: Zahl in Bayern verdoppelt in c/[email protected]

[–] bistdunarrisch 4 points 4 weeks ago

Ich gehöre seit heute auch dazu. War ein langer Kampf, letztendlich hat alleinig die Gesetzesänderung zur Durchsetzung geführt.

Heart and Soul nebula in c/astrophotography

[–] bistdunarrisch 2 points 1 month ago

I didn't check but would guess right about one hour. Plus ~30min registration. Normally I just start the process and leave my laptop and come back later, so I don't know for sure.

44

Heart and Soul nebula (lemmy.world)

submitted 1 month ago by bistdunarrisch to c/astrophotography

2 comments fedilink

On our journey to shot the best images we can with our non ideal setup we collected more data on the heart nebula. Main problem with our setup is the distance of the sensor which is not perfect and results in bad star shapes in the corners. Stepping down to 2.8 and using BXT helps a lot. Combined with old data we gathered a total exposure time of 14 hours.

Samyang 135mm @f2.8 and f2.0
Fuji X-T5 (unmodified)
STC dual narrowband filter
Star Adventurer 2i
856 x 60s
ISO 3200

Editing:

stacked, remove green noise, BGE in Siril
BXT, SXT in Pixinsight
streched with GHS in Siril
NXT, colouring, contrast, recombining stars in PS

Full resolution: https://telescopius.com/pictures/view/211833/deep_sky/ic-1824/heart-and-soul-nebula/by-maxi_franzi

Sh2-132 - The Lion Nebula in c/astrophotography

[–] bistdunarrisch 2 points 1 month ago

Absolutely stunning image! Thanks for sharing

124

[OC] deer in german woods (lemmy.world)

submitted 2 months ago* (last edited 2 months ago) by bistdunarrisch to c/pics

4 comments fedilink

Shoot with a Samyang 135mm lens and a Fuji X-T5.

NGC 7293 - Helix Nebula in c/astrophotography

[–] bistdunarrisch 3 points 2 months ago

Also we were quite surprised how bright the nebula is. We didn't thought to get that much signal with 15min exposure time. Even more so as our camera is not infrared modified.

36

NGC 7293 - Helix Nebula (lemmy.world)

submitted 2 months ago by bistdunarrisch to c/astrophotography

1 comments fedilink

This is a first test to shoot NGC 7293 with a 135mm lens. Sadly we could only gather 15 min exposure time as the time frame for shooting this nebula is super short and we had a lot of clouds. Hopefully we have better conditions next year. But this test makes us hopeful to get a decent image with our equipment.

Samyang 135mm
Fuji X-T5
dual narrowband filter
Star Adventurer 2i
29 * 30s
stacked in Siril
BXT, NXT, SXT
final editing in PS

PCB etched with toner transfer method in c/[email protected]

[–] bistdunarrisch 1 points 3 months ago (1 children)

Interesting, how much power does the laser have to need to be able to burn the paint?

PCB etched with toner transfer method in c/[email protected]

[–] bistdunarrisch 2 points 3 months ago (1 children)

Haha, the board won‘t win any prices for sure. But for a first try I‘m still very happy.

Automatic watering system for my strawberries in c/[email protected]

[–] bistdunarrisch 2 points 3 months ago

Sure thing :)

Automatic watering system for my strawberries in c/[email protected]

[–] bistdunarrisch 3 points 3 months ago

I used this code as the base and changed it slightly so the pump has a safety time out and can be controlled via PWM.

In newer projects I use code from Espressif however because it works with Matter and Threads.

Automatic watering system for my strawberries in c/[email protected]

[–] bistdunarrisch 6 points 3 months ago

Yes exactly. It checks the weather forecast however so it doesn’t water when it‘s raining. This way I don’t have to refill the canister too often. A better way would be to attach moisture sensors to the plants, but I don’t like having to change batteries constantly. This is a very simple solution but it works for me.

PCB etched with toner transfer method in c/[email protected]

[–] bistdunarrisch 7 points 3 months ago

I just printed the design on a glossy paper and used an iron to transfer the toner from the paper onto the pcb (last image). The toner protects the underlying copper in the etching process, so only the free copper gets etched away. I used Na2S2O8 for etching.

PCB etched with toner transfer method in c/[email protected]

[–] bistdunarrisch 4 points 3 months ago

Yes UV is so much nicer, I also use this method now when I‘m not ordering online.

15

Automatic watering system for my strawberries (lemmy.world)

submitted 3 months ago by bistdunarrisch to c/[email protected]

2 comments fedilink

cross-posted from: https://lemmy.world/post/21224914

As I don‘t have a water outlet on my balcony I use a water tank and a pump for watering my strawberries. I developed a controller for the pump which runs natively on Apple Homekit but I‘d like to change it to Matter and Threads in the future.

5

Automatic watering system for my strawberries (lemmy.world)

submitted 3 months ago by bistdunarrisch to c/[email protected]

0 comments fedilink

cross-posted from: https://lemmy.world/post/21224914

As I don‘t have a water outlet on my balcony I use a water tank and a pump for watering my strawberries. I developed a controller for the pump which runs natively on Apple Homekit but I‘d like to change it to Matter and Threads in the future.

37

Automatic watering system for my strawberries (lemmy.world)

submitted 3 months ago by bistdunarrisch to c/[email protected]

4 comments fedilink

As I don‘t have a water outlet on my balcony I use a water tank and a pump for watering my strawberries. I developed a controller for the pump which runs natively on Apple Homekit but I‘d like to change it to Matter and Threads in the future.

24

PCB etched with toner transfer method (lemmy.world)

submitted 3 months ago by bistdunarrisch to c/[email protected]

0 comments fedilink

cross-posted from: https://lemmy.world/post/21224425

This was my first try developing my own pcb with the toner transfer method. I did this project many years back but it works perfectly to this day.

It filters an audio signal and drives led strips so they pulsate to the beat of a song.

91

PCB etched with toner transfer method (lemmy.world)

submitted 3 months ago by bistdunarrisch to c/[email protected]

11 comments fedilink

This was my first try developing my own pcb with the toner transfer method. I did this project many years back but it works perfectly to this day.

It filters an audio signal and drives led strips so they pulsate to the beat of a song.

42

C/2023 A3 (Tsuchinshan-ATLAS) (lemmy.world)

submitted 3 months ago by bistdunarrisch to c/astrophotography

0 comments fedilink

Got another shot at C/2023 A3.

Samyang 135mm f2.0
Fuji X-T5
603 x 5s
ISO 400
Stacked, streched in Siril
combined stars, comet and foreground in Photoshop

69

C/2023 A3 & M5 (lemmy.world)

submitted 3 months ago* (last edited 3 months ago) by bistdunarrisch to c/astrophotography

20 comments fedilink

We got extremely lucky and got a tiny window of cloudless sky in an never ending sequence of cloudy nights. Also the conditions were a nightmare with severe light pollution and lights shining directly at our equipment.

Samyang 135mm f2.0
Fuji X-T5
158 x 5s
ISO 125
@f2.8

And maybe somebody here can explain to us what the ionized gas is that 'shoots out‘ in front of the comet?

Also do the colours seem to be correct? We tried our best at background extraction and maintaining the true colour, but the raw data was of poor quality. From images of other comets the dust tails normally seems to have a yellow/orange colour and only the plasma tail is blue.

Edit: found the answer to the Anti-tail. It shows the trail of dust were the comet has traveled, which appears to come out at the opposing side because of earths angle relative to the comet and sun.