Friday, October 29, 2021

Lego Star Tracker V3 - From Design to Minimum Viable Product

Under Pressure

Lego Star Tracker Version 3
Well, a quick look at the forecast tells me I may have a window of opportunity tomorrow to actually try and test my DIY Lego Star Tracker.  So the pressure is on!

I know what I need to do in order to prototype a new design which overcomes the issues I discovered with the last version.  But what I hadn't thought about yet is how I'm going to mount and align this device.  So I've got some additional challenges to think about as well.

I'm hopeful that with this revision I'll be able to set the design baseline moving forward.  Clock's Ticking!

Wednesday, October 27, 2021

Lego Star Tracker V2 - One Step Closer

Just a Little Bit of Progress

Progress Meter Image
The Lego Star Tracker version 1 was a flop, but I can see the potential so I'm feeling pretty motivated.  I'm going to modify the design and try a different approach that will hopefully overcome my issue with my Lego's axle rigidity.

One of the best things about Legos is the ability to tear it all apart and start all over again.  While I'm a bit bummed my first version didn't yield as good a result as I would have liked, the experience taught me enough to make a little bit of progress.  

Let's look at the modifications and see where we are now.

Monday, October 25, 2021

Lego Star Tracker - Version 1

Where to Begin

Celestial coordinate map
I have a general idea of how I want to use Legos to build a star tracker.  That said, I need to be careful and not get too far ahead of myself.  The best strategy is to try to break this problem down into manageable goals.

Right out of the gate, I have two challenges ahead.  First, I need to design a system that is stable and precise enough to transfer power from a Lego motor to offset a change in my target's position by 0.25 degrees per minute.  Second, I need to construct the device in such a way that it can handle the weight and torque required.

If I can't overcome both of these challenges, I'm dead in the water on this project.  But I have a few ideas based on some Lego pieces I fished out of the carpeting and from under beds that I can begin to test.

Friday, October 22, 2021

Must Start Tracking!

Cloudy Nights are Worse Than Rainy Days

tools
Well, it's September here in Krakow which basically means the clouds have rolled in and with any luck they'll depart around April.  I wish I was kidding.  It gets a bit drab in these parts at this time of the year.  Hey, at least the fog hasn't rolled in yet.

Anyway, I'm gonna have some time on my hands waiting for my next imaging session.  I was definitely a bit smitten with the dark skies we had in Kopalino and what a difference that made for my imaging.  No doubt about it, I need to find a way to increase my signal to noise ratio and given my light pollution situation in Krakow, I need to find a way to start tracking.

But you said that's a future investment!  Yes, I did - and it is.  But with these cloudy skies and time to burn, I'm going to set about building my own tracker.  No better way to learn the basics of tracking than to build my own.  So it's time to up my fun with tracking.

Wednesday, October 20, 2021

What a Difference Darkness Makes - Andromeda 08/04/21

Hoping for the Best

Andromeda photo

After a long day on the road, we rolled up to Kopalino and I'll bet I spent more time looking at the sky than I did the village.  Lots of clouds but I was hoping they'll blow out after sunset.  Mind you, Kopalino is another 5 degrees North of Krakow, so the sunsets were late and long.

My son and I headed out on our first night in town to find a spot away from the streetlights.  There was a nice breeze and sure enough, the clouds ended up rolling out.  We were tired, so the plan was to just take a few snaps and then head in for the evening. 

Once the sun went down, man, it was a totally different scene than in Krakow.  The difference in light pollution was pretty stark.  The Milky Way was faint but clearly visible in the sky above us.  And Andromeda was ripe for shooting.  Here is a recap of our week.

Monday, October 18, 2021

Vacation Time with the Nifty Fifty

Something To Look Forward To

camera lens photo
Things have been quite busy for me lately but one thing we've always prioritized as a family is getting away for a week or two every summer together.  This year, my wife booked us a cottage in the Northern village of Kopalino, Poland which sits a little over a mile away from the Baltic Sea.

I love being around the water so I was already pretty excited about getting away.  But imagine my enthusiasm when I discovered that Kopalino is located in a Bortle 4 zone.  This is a significantly darker location than where I am used to shooting, so I need to make the most of this opportunity - skies willing.

That is why I decided to take the plunge and go ahead and purchase my first new lens.  For this, I went with the very affordable Canon 50mm f/1.8 STM.  Now, before we hit the road, I have a couple of days to get out and learn how to use it.

Friday, October 15, 2021

Curse You Light Pollution - Deneb 06/28/21

Let's Try Something New


streetlight photo
I was sorely tempted to take another crack at Cassiopeia having been blessed with clear skies.  But with what I had learned the previous night, I was eager to try something new so I thought I'd see what I could catch around the constellation Cygnus and more specifically, its bright star Deneb.

New challenges, new problems.  Generally speaking, this imaging session went a lot more smoothly than the previous one.  The results were a lot a better as well.  However, I got my first taste of the pernicious nature of light pollution.  Curse you light pollution!

 

 

 

 

Wednesday, October 13, 2021

Living Up to Low Expectations - Cassiopiea 06/27/21

When Failure is a Brilliant Outcome

mosquito
I've wrapped up my first night of shooting and I'm delighted to say that I didn't let myself down as I was able to produce a picture that is about as pleasant to look at as dog-barf.  It was an absolute comedy of errors but as I like to remind myself, nobody ever learned anything from success.  And let me tell you, I learned a whole lot tonight.  

Kidding aside (kind of anyway), I had a great time out with my son.  And rather than be in any way discouraged by my results, I'm more eager to get back on that horse and try again.  When you live up to low expectations, it can only get better from here.  Let me share a few of the many things that I learned.

Monday, October 11, 2021

First Night - High Excitement, Low Expectations

Getting Ready for My First Shoot

camera lens
I've been around long enough to have learned that despite my best efforts, I'm not going to produce a high-quality photo my first night out.  Heck, I'll be thrilled if I can even get good focus.

Point is, it's more about climbing up a pretty steep learning curve at this point than producing quality photos (by my standards).  So I'm not going to put any undue pressure on myself and I'm simply going to strive to learn something new.  In fact, that's pretty much going to be my goal for the foreseeable future.  If I can discover something new each time I go out, then I've made progress.

So it's time to get ready for my first night's shoot and while I'm really excited, I'm keeping rather low expectations.  But here's how I've prepared.

 

 

Thursday, October 7, 2021

I Love It When a Plan Comes Together

Why Astrophotography? 

Plan
I've always been fascinated with outer space.  There's just something about looking up and standing in awe of the beauty and vastness of it all.  It's inspiring.  Even the Psalmist declares, "The heavens are telling of the glory of God; and their expanse is declaring the work of His hands."  So it's no wonder we experience that pull to learn more and see more of the heavens around us.  We're all curious explorers in this regard.

But exploring the heavens from our little perch here on Earth is not an inexpensive proposition.  However, advances in technology over the past decade have dramatically improved our access to this hobby and lowered entrance costs.  Nonetheless, it's still not cheap.  Therefore it's necessary to formulate a strategy whereby I can embark on this amazing journey without selling the house and starving my family.  I love it when a plan comes together.