battlecoder
@battlecoder.bsky.social
Mad Data Scientist, 8-bit enthusiast and part-time maker. Digital mind, analog heart. High chances of being a Replicant.
While I've been mostly photographing Nebulas, they are not the only beautiful objects in the night sky.
This is Messier 22, also known as the Great Sagittarius Cluster, a region packed-full of stars.
I'm tempted to try with a larger instrument next time, hoping to capture even more stars.
This is Messier 22, also known as the Great Sagittarius Cluster, a region packed-full of stars.
I'm tempted to try with a larger instrument next time, hoping to capture even more stars.
November 17, 2025 at 4:45 AM
While I've been mostly photographing Nebulas, they are not the only beautiful objects in the night sky.
This is Messier 22, also known as the Great Sagittarius Cluster, a region packed-full of stars.
I'm tempted to try with a larger instrument next time, hoping to capture even more stars.
This is Messier 22, also known as the Great Sagittarius Cluster, a region packed-full of stars.
I'm tempted to try with a larger instrument next time, hoping to capture even more stars.
C/2025 A6 Lemmon is the brightest comet currently visible from Earth. Sadly, from where I live it appears very low over the horizon, giving me barely 10-15 mins of visibility after astronomical twilight.
However, 4 nights ago I had the chance to see it, and managed to snap this picture of it.
However, 4 nights ago I had the chance to see it, and managed to snap this picture of it.
November 16, 2025 at 4:34 AM
C/2025 A6 Lemmon is the brightest comet currently visible from Earth. Sadly, from where I live it appears very low over the horizon, giving me barely 10-15 mins of visibility after astronomical twilight.
However, 4 nights ago I had the chance to see it, and managed to snap this picture of it.
However, 4 nights ago I had the chance to see it, and managed to snap this picture of it.
Trifid Nebula (M20)
This was ~1hr of data, which is the best I can get at this time of the year. Maybe I should start doing multi-night captures.
For this pic I used an UHC filter instead of my narrow-band to capture more of its reflection side #astrophotography
This was ~1hr of data, which is the best I can get at this time of the year. Maybe I should start doing multi-night captures.
For this pic I used an UHC filter instead of my narrow-band to capture more of its reflection side #astrophotography
November 8, 2025 at 5:54 AM
Trifid Nebula (M20)
This was ~1hr of data, which is the best I can get at this time of the year. Maybe I should start doing multi-night captures.
For this pic I used an UHC filter instead of my narrow-band to capture more of its reflection side #astrophotography
This was ~1hr of data, which is the best I can get at this time of the year. Maybe I should start doing multi-night captures.
For this pic I used an UHC filter instead of my narrow-band to capture more of its reflection side #astrophotography
Moon. Oct 30th, 2025. #astrophotography
November 1, 2025 at 12:02 AM
Moon. Oct 30th, 2025. #astrophotography
This is C/2025 R2 (SWAN)
Compared to our other visitor, C/2025 A6 (Lemmon), this comet is very dim and almost invisible from my light polluted sky, even to my camera. I was about to give up, but decided to process a small stack of pics anyway. For a first picture of a comet I consider this a success
Compared to our other visitor, C/2025 A6 (Lemmon), this comet is very dim and almost invisible from my light polluted sky, even to my camera. I was about to give up, but decided to process a small stack of pics anyway. For a first picture of a comet I consider this a success
October 30, 2025 at 3:38 AM
This is C/2025 R2 (SWAN)
Compared to our other visitor, C/2025 A6 (Lemmon), this comet is very dim and almost invisible from my light polluted sky, even to my camera. I was about to give up, but decided to process a small stack of pics anyway. For a first picture of a comet I consider this a success
Compared to our other visitor, C/2025 A6 (Lemmon), this comet is very dim and almost invisible from my light polluted sky, even to my camera. I was about to give up, but decided to process a small stack of pics anyway. For a first picture of a comet I consider this a success
I totally forgot to post these here. Here are two pictures I captured a couple of weeks ago. The Eagle (red) and the Swan (yellow) nebulae. #astrophotography
October 13, 2025 at 4:24 AM
I totally forgot to post these here. Here are two pictures I captured a couple of weeks ago. The Eagle (red) and the Swan (yellow) nebulae. #astrophotography
As much as I like the "Hubble palette" depiction of M8, my favorite is its more natural, red-tinted rendering. For this pic I was testing a "planetary" camera, normally considered unfit for DSOs. And yet, when paired with a short astrograph, the result is a gorgeous picture of this beautiful nebula.
October 13, 2025 at 4:12 AM
As much as I like the "Hubble palette" depiction of M8, my favorite is its more natural, red-tinted rendering. For this pic I was testing a "planetary" camera, normally considered unfit for DSOs. And yet, when paired with a short astrograph, the result is a gorgeous picture of this beautiful nebula.
Captured the Lagoon Nebula with an astro-modded DSLR using the "Hubble palette", or rather, an approximation. Proper "Hubble" colors requires capturing specific narrow band data that is later mapped to R,G & B, producing this gold-blue range. This is multi wider-band data with manual tone remapping.
September 27, 2025 at 3:16 AM
Captured the Lagoon Nebula with an astro-modded DSLR using the "Hubble palette", or rather, an approximation. Proper "Hubble" colors requires capturing specific narrow band data that is later mapped to R,G & B, producing this gold-blue range. This is multi wider-band data with manual tone remapping.
Small view of the moon around the Copernicus crater, taken with a Celestron 80/500 refractor and an Svbony SV305 Pro camera + SV231 color correction filter.
There's a bit of haze tonight, so I took a video and stacked the frames with Astrosurface. I definitely need more practice with that workflow
There's a bit of haze tonight, so I took a video and stacked the frames with Astrosurface. I definitely need more practice with that workflow
July 5, 2025 at 5:18 AM
Small view of the moon around the Copernicus crater, taken with a Celestron 80/500 refractor and an Svbony SV305 Pro camera + SV231 color correction filter.
There's a bit of haze tonight, so I took a video and stacked the frames with Astrosurface. I definitely need more practice with that workflow
There's a bit of haze tonight, so I took a video and stacked the frames with Astrosurface. I definitely need more practice with that workflow
Took me several attempts (and waiting for a less cloudy night) but I finally got a picture of the moon!
May 6, 2025 at 4:32 AM
Took me several attempts (and waiting for a less cloudy night) but I finally got a picture of the moon!
I'll be needing a portable 12V power supply soon, so I made this 12V adapter for Einhell X-Change packs. I also added a 5V USB output because that's always useful, and a "raw" (straight from the battery) output port. I might rewire it later so the "raw" output is only available when it's off.
April 12, 2025 at 5:24 AM
I'll be needing a portable 12V power supply soon, so I made this 12V adapter for Einhell X-Change packs. I also added a 5V USB output because that's always useful, and a "raw" (straight from the battery) output port. I might rewire it later so the "raw" output is only available when it's off.
This is a crop from the picture we took of the moon yesterday using a friend's telescope, and my old but trusty Canon T2i camera.
Since we were using a direct adapter to the telescope, there was no additional zoom, but it would be fun to try a more involved setup to capture more details.
Since we were using a direct adapter to the telescope, there was no additional zoom, but it would be fun to try a more involved setup to capture more details.
April 6, 2025 at 12:55 AM
This is a crop from the picture we took of the moon yesterday using a friend's telescope, and my old but trusty Canon T2i camera.
Since we were using a direct adapter to the telescope, there was no additional zoom, but it would be fun to try a more involved setup to capture more details.
Since we were using a direct adapter to the telescope, there was no additional zoom, but it would be fun to try a more involved setup to capture more details.
This means there's Chocobos nearby right?
February 17, 2025 at 7:04 PM
This means there's Chocobos nearby right?
"All those moments will be lost in time, like tears in rain"
Happy birthday Roy Batty! #bladerunner
Happy birthday Roy Batty! #bladerunner
January 8, 2025 at 4:49 PM
"All those moments will be lost in time, like tears in rain"
Happy birthday Roy Batty! #bladerunner
Happy birthday Roy Batty! #bladerunner
This is one of my favorite things I got for Christmas; Uranium glassware!
Mildly radioactive, and highly fluorescent under UV light (as pictured), these two cups are definitely a sight to behold. I just need to figure a way to display them so they can be seen glowing at night!
Mildly radioactive, and highly fluorescent under UV light (as pictured), these two cups are definitely a sight to behold. I just need to figure a way to display them so they can be seen glowing at night!
December 28, 2024 at 3:50 AM
This is one of my favorite things I got for Christmas; Uranium glassware!
Mildly radioactive, and highly fluorescent under UV light (as pictured), these two cups are definitely a sight to behold. I just need to figure a way to display them so they can be seen glowing at night!
Mildly radioactive, and highly fluorescent under UV light (as pictured), these two cups are definitely a sight to behold. I just need to figure a way to display them so they can be seen glowing at night!
Replaced the capstan with one I 3D-printed in TPU. Fully replaced the corroded flex cable with thin wires (because it broke again!).
With this, the magnetic reader was mechanically working, but still not reading or writing cards successfully (except once in a while).
With this, the magnetic reader was mechanically working, but still not reading or writing cards successfully (except once in a while).
December 23, 2024 at 4:30 AM
Replaced the capstan with one I 3D-printed in TPU. Fully replaced the corroded flex cable with thin wires (because it broke again!).
With this, the magnetic reader was mechanically working, but still not reading or writing cards successfully (except once in a while).
With this, the magnetic reader was mechanically working, but still not reading or writing cards successfully (except once in a while).
I took a break from the Advent of Code puzzles to repair this TI-59 calculator that I got today. Managed to fix the corroded flex, and after some cleaning it seems to work mostly fine except for the magnetic reader. I already disassembled it and cleaned it thoroughly, and I'll continue tomorrow.
December 21, 2024 at 7:31 AM
I took a break from the Advent of Code puzzles to repair this TI-59 calculator that I got today. Managed to fix the corroded flex, and after some cleaning it seems to work mostly fine except for the magnetic reader. I already disassembled it and cleaned it thoroughly, and I'll continue tomorrow.
I've been getting this for several years now, and it makes perfect sense. Of course Linkin Park is my top artist~
December 4, 2024 at 7:13 PM
I've been getting this for several years now, and it makes perfect sense. Of course Linkin Park is my top artist~
This is the PX16C soldering kit; A very well made, carefully crafted soldering kit that almost-perfectly emulates the HP16C "Programmer's Calculator" from the 80s.
I got this kit for my birthday and it works great. I feel like this is going to be my new favorite calculator for my ASM coding projects
I got this kit for my birthday and it works great. I feel like this is going to be my new favorite calculator for my ASM coding projects
November 10, 2024 at 3:36 AM
This is the PX16C soldering kit; A very well made, carefully crafted soldering kit that almost-perfectly emulates the HP16C "Programmer's Calculator" from the 80s.
I got this kit for my birthday and it works great. I feel like this is going to be my new favorite calculator for my ASM coding projects
I got this kit for my birthday and it works great. I feel like this is going to be my new favorite calculator for my ASM coding projects
Little by little I've been making progress with this robot arm and it finally looks like one! I may need to change two of the servos at the joints, though. They might be subjected to forces beyond their rating once the arm is in motion, due to momentum.
October 24, 2024 at 3:19 PM
Little by little I've been making progress with this robot arm and it finally looks like one! I may need to change two of the servos at the joints, though. They might be subjected to forces beyond their rating once the arm is in motion, due to momentum.
I recently learned that solarbotics.com is selling Evil Mad Scientist 's amazing soldering kits! After having a blast with their Jumbo 555 kit I had to get the XL741!
Here's my oversized 741 as an inverting op-amp with an x10ish ratio. The scope capture shows that it works just like the real thing!
Here's my oversized 741 as an inverting op-amp with an x10ish ratio. The scope capture shows that it works just like the real thing!
April 27, 2024 at 5:51 AM
I recently learned that solarbotics.com is selling Evil Mad Scientist 's amazing soldering kits! After having a blast with their Jumbo 555 kit I had to get the XL741!
Here's my oversized 741 as an inverting op-amp with an x10ish ratio. The scope capture shows that it works just like the real thing!
Here's my oversized 741 as an inverting op-amp with an x10ish ratio. The scope capture shows that it works just like the real thing!
I've shared this in the past, in other places, but I STILL can't get over the fact that we could all have "Oops!" instead of "Undo" in our programs, but someone, somewhere, made the wrong call.
(This is from the documentation for TI-Writer, but even earlier word processors like TJ-2 also had "Oops")
(This is from the documentation for TI-Writer, but even earlier word processors like TJ-2 also had "Oops")
March 27, 2024 at 3:47 PM
I've shared this in the past, in other places, but I STILL can't get over the fact that we could all have "Oops!" instead of "Undo" in our programs, but someone, somewhere, made the wrong call.
(This is from the documentation for TI-Writer, but even earlier word processors like TJ-2 also had "Oops")
(This is from the documentation for TI-Writer, but even earlier word processors like TJ-2 also had "Oops")
I also wanted to determine whether it was possible to identify the frequency components of that signal without probing the traces, with a cheap non-invasive near field probe and a Spectrum Analyzer (in this case a TinySA Ultra), and the results were better than I expected.
March 24, 2024 at 6:30 AM
I also wanted to determine whether it was possible to identify the frequency components of that signal without probing the traces, with a cheap non-invasive near field probe and a Spectrum Analyzer (in this case a TinySA Ultra), and the results were better than I expected.
Excuse the crude PCB, but the etching was done in a hurry. This is my small signal interference playground and for this demo I had a 7 Mhz sine wave running next to a 10 Mhz square wave. I was surprised to see how distorted the sine wave looked on the oscilloscope at the output.
March 24, 2024 at 6:30 AM
Excuse the crude PCB, but the etching was done in a hurry. This is my small signal interference playground and for this demo I had a 7 Mhz sine wave running next to a 10 Mhz square wave. I was surprised to see how distorted the sine wave looked on the oscilloscope at the output.
I have developed this very unhealthy obsession with decimal places and precision beyond my actual needs.
Look at this 10Mhz reference. This is ridiculous, even for my unnecessarily high standards, and yet, this makes me happy in ways I can't quite describe.
Look at this 10Mhz reference. This is ridiculous, even for my unnecessarily high standards, and yet, this makes me happy in ways I can't quite describe.
March 9, 2024 at 4:42 AM
I have developed this very unhealthy obsession with decimal places and precision beyond my actual needs.
Look at this 10Mhz reference. This is ridiculous, even for my unnecessarily high standards, and yet, this makes me happy in ways I can't quite describe.
Look at this 10Mhz reference. This is ridiculous, even for my unnecessarily high standards, and yet, this makes me happy in ways I can't quite describe.