Guiding Telescope with a Webcam Setup

I’ve finally gotten jealous enough for the astrophotography subreddit to get back to work on this project. Jess bought me a Meade LX10 8″ diameter telescope several years ago for my birthday. I’ve used it quite a bit to view planets and try to take deep sky astrophotography pictures. This telescope isn’t one of those fancy ones you can type in whatever cool thing you want to see and it’ll drive itself to point right to it, that’s called a “GO TO”. Rather it has a simple “barn door” tracker motor. Basically, if you align to perfect true north, and set the wedge (the thing that mounts the telescope to the tripod) to your latitude, whatever you point the scope it will stay in view for hours in the eyepiece. If I know where to look, I can attach a camera to the scope and leave the shutter open and get some amazing pictures of nebulae and galaxies.

Being that I’m no good at polar alignment, I decided a few years ago to build an arduino interface that will connect my scope to my computer.  The way this works is that I attach a webcam to the spotter scope (the small telescope that helps you find stuff) which looks at a particular star.  The webcam pipe data into a program that sends signals out to the arduino to move the scope to keep the star in the same part of the webcam’s view.  This way, I don’t have to be perfectly polar aligned, the software will help adjust the position of the scope for me.

I went on the hunt for a webcam that would work well with Windows and linux.  This is because a lot of people are buying Raspberry Pi boards,connecting a webcam to them and attaching the whole setup to the telescope. Right now I’m testing on a windows machine so I need a webcam that’ll play well with both.  I looked up the Linux Universal video Class (UVC) drive list to find a good modern camera. This list shows a good number of webcam models and brands that are known to work natively in recent linux distros.

The camera I landed on is the Logitec HD Webcam C270.  It is a very cheap 720p 3 megapixel webcam. That’s overkill for the telescope, but it’s a good general use webcam and we can use it for video chats and such as well.  This means my solution to attaching the camera to the scope can’t be permanent.

I keep a bunch of 3/4″ PVC pipes and connectors in the garage for prototyping, so I grabbed a 3/4-inch T connector.  This connector can easily accommodate my 1″ outer diameter sighting scope.

webcamTele

The scope doesn’t fit perfectly, so I added some 2mm sticky-backed craft foam for a snug pressfit. (On a side note, I can’t tell you how useful it is having this kind of foam in the toolbox for all sorts of random purposes. I use it all the time)  To accommodate the webcam, I used a hacksaw to cut a portion of the PCV connector off as shown.  Then I wrapped a 3/8″ piece of foam on each of the cut edges of the PVC where it will touch the camera. This will help the camera seat well and stay in place when I attach it to the scope.

3webcamTele  4webcamTele

Finally, I used a smooth “ouchless” hair tie to hold the camera to the PVC tightly and aligned the camera with the hole in the PVC T-joint. Again, believe it or not, these hair ties are pretty useful for random jobs.  In fact, I use a 8-inch smooth headband made of the same material to hold on my cheapo dew shield (more on this in another post.)

5webcamTele  6webcamTele

7webcamTele

 

The final product is easy to use and quite robust. I think it’ll work quite well with my the rest of my setup.  Since I’m still working that all out, I’ll post more as I learn more.8webcamTele

Audible and My Reading Life

I started last year out strong by reading 5 books just in January.  That is where my documentation ended, so I had to resort to the virtual trail left behind on my Kindle and in Audible for my yearly stats.

I read 15 books on my kindle. I read at least two books in print. I’m sure this number is higher, but I didn’t put any effort in determining what other books I may have read. I listened to 6 books through Audible.

This puts my last year total at 23+ books. I don’t have a numerical goal for this year. I simply want to get into a more regular habit of reading and documenting my reading progress.

Jessica-of-SheekGeek

P.S. My reading stats would have been 6 books less without Audible. It is a happy part of my work/home commute. (It feels so productive to “read” while you drive.) If you are interested, you can try Audible out for free; or dive right into a Gold membership (which is what I have).

 

 

What I’ve Learned from Decluttering My Entire Home

2015 was my year to simplify.

In my process of simplification last year, I decluttered my entire home and lazily blogged about a bit of that process. I’m happy to report that much more decluttering occurred than what was documented. Here is what I learned along the way, along with four ideas for you to try out if you are embarking on decluttering your own place of living.

Idea #1 that worked: Have a garage sale with the aim to get rid as much as possible. Arrange beforehand to have all remaining items lugged away immediately at the end of the sale.

I started off selling items on eBay and later on I held a garage sale. The garage sale rewarded my inner thrift, since we netted a surprising amount of around $500.  I posted an offer on Craigslist to pick up whatever was left at the end of the sale for free. This was the best idea of the whole sale. Nothing can compete with someone else lugging your unwanted belongings away for free.

Idea #2 that worked: Let go of making money off your unwanted items. Donate your stuff and feel good about contributing to a worthy cause.

Nothing is as easy as giving your unwanted belongings away for free. It took me awhile to learn this lesson. A friend of mine shared it is was easy for her to give away items because she felt it was her way to pay back thrift stores for all the good finds she purchased over the years. Once I adopted this attitude myself, the process of decluttering went more smoothly. To be completely honest, it was easier to adopt this attitude because I had already sold most of the things that I considered to be big ticket items.

Idea #3 that worked: Start and finish a focus area in the same day.

I made a list in the very beginning of the all areas in my home that I wished to declutter (which was every area). I tackled one area at a time. Sometimes this was a room, a portion of a room, or a a specific object (like books). I kept my focus on that one area until it was finished. Many time this meant I  physically stayed in that location until I was done. If any item needed to be moved somewhere else, I did not do it then. I made a little pile to move at the end. I did most of decluttering on weekend days because I also aimed to finish that focus area in one day. I needed more time to complete each area than I had the time and energy for after work.

Idea #4 that worked: Realize that decluttering is a never-ending process that is just as much about yourself as it is about your stuff.

Since I gave myself an entire year for this process, it was an attainable goal. Still, over the year I realized that decluttering will never be finished. We constantly bring things into our lives so we need to constantly get rid of things in our lives. This is a skill that we sharpen with practice. Sometimes when I decluttered a space I didn’t do a good job because I held onto items I didn’t need. Then I had to revisit the same space again. This heightened my “declutter” radar, which made future decluttering efforts more effective. Now I am more considerate of what I take into my home to begin with and more easily get rid of what I do not need.

Jessica-of-SheekGeek

 

 

Book Review: Ready Player One

Ready Player One came out in 2011. I had heard great things about it and finally decided to check it out. I’m pretty stingy with my book choices and it is a best seller that has 4.5 stars on Amazon with more than 8,500 reviews and 4.31 rating with over 233,000 ratings and 33,000 reviews on goodReads.

Ready Player One starts out very promising with a good post-apocolyptic cyber-punkish feel set in the year 2044. But it quickly turns into an episode of MTV’s “I love the 80s”. You can’t get 3 sentences without the author name-dropping some 80’s cartoon/movie/actor/band/song.

Synopsis (no spoils):

The premise of the story is that there was a game designer from the 1980s who creates the best gaming system in the world over the next few decades. It is an entire virtual universe. People connect to this virtual universe (called the OASIS) using virtual reality goggles and haptic feedback sensors such as gloves or a body suit. Different worlds seem to be massively multiplayer games that have all the best parts of all the popular PC games such as The Sims, Spore, World of Warcraft, etc.

The creator of this system filled it with 1980s memorabilia. Entire planets are designed to look and feel exactly like the player is re-living the 1980s. The creator has died (being 70-something years old in 2044…) but he hid a special easteregg in the OASIS system. All the players are trying to find it because it will give you control of the entire system. The system is worth billions of dollars. As this is a dystopian novel there’s an evil supercorporation also vying for the easter egg.

That’s all I can say without giving too much away, but what I take issue with is the focus on the 1980s. With more focus on the story or the characters, this could be a great book but instead it’s about 50 pages of story and about 320 pages of 80s references.

Do you remember the 80s? It sucked. The music, the clothing styles, the color schemes used on everything… gah. I’m reminded of it every time I see some hipster doofus with skinny jeans or listen to the radio nowadays. I think of the 80s as almost like the dark ages of style… except you can’t call it the dark ages… maybe the NEON ages. This book simply panders to hipsters that like saying “Hey man, remember Cyndi Lauper’s “Time after Time”? Remember Wham and Devo? Remember the TRS-80 computer? Remember Galaga arcade games? Remember the Goonies? Weren’t those things just the best!?” (This is not hyperbole. These are just a few of the hundreds of needless 80s references, practically 2 per page in the 350+ page book!)

Now I’m all for 80s video games. I’m not a gamer but I appreciate the art and the ingenuity of games. In fact, I prefer some of the 80s era video games over games nowadays because of the programming tricks that were involved to get certain features out of the very limited hardware.  The programmers had to be very clever to even get some systems to draw full screen color graphics. Nowadays, no one thinks much about that kind of thing because every system has gigabytes of RAM, GPUs that can handle all sorts of crazy 3D rendering and multicore processors. While there is certainly amazing work done nowadays, I feel that the 80s were a special time in video game history that should be appreciated. Unfortunately the way this was done in Ready Player One left a bad taste in my mouth.

I’ve heard they are making a movie out of this book. I admit while reading it, I could easily see it as a movie, but this is mainly because this movie has already been made. There’s nothing novel here whatsoever. If you take some random distopian/cyber punk 80s movies, add a dash of video game story lines from over the last 30 years, and a pinch of Hackers (from the mid 90s), mix them all together, you get this movie. I was much more interested in the book/movie The Martian by Andy and hopefully they will make a movie of Wool (the Silo Series) by Hugh Howey which came out around the same time but is much better.

All together I give it a 2 out of 5 rating based on the story itself and for wasting my time with all the reminders of a horrible decade for style (since for some reason I did read the whole book).

</rant>

Appendix:

At random, I flipped to a page in the book (page 106). Here are the references for just that one page. Mind you, this book is set in the year 2044:

  • Dungeons of Daggorath
  • Vector-graphics
  • cassette decks (in this case being used to upload a computer game)
  • Conan the Barbarian
  • Ladyhawke
  • Wizards (I’m counting this because of the context and all sorts of games/movies in the 80s had wizards in them)
  • Dot matrix printer
  • WarGames (the movie)

My Year to Thrive

For the past three years I have chosen one word to help guide my growing as a person.

2013 was the year to “be” , 2014 was all about focus, and 2015 was my year to simplify. 2016 is my year to thrive.

thrive-2016Thriving is synonymous with growing, flourishing, and prospering.

To me, my focus on the word “thrive” is two-fold. First, I am growing in my thinking. I started a doctoral program last year and have successfully completed two courses (just 18 left to go – ha!). Two of my goals for the upcoming year include living a readerly and writerly life. Being in grad school is a bit of a cheat, because it ensures that this happens. Still, I am extending this goal beyond my studies.

So far my grad school experience has initiated (or reactivated) ideas that are excitedly stirring around in my brain. This leads me to my second point. Prospering is all about success, and success is all about follow through. In my get to work book, the month of last September began with “1 idea in action is worth more than 100 on deck”. This year is all about putting my ideas into action. If 2013 was about “being”, 2016 is all about “doing”.

Let’s get to work. Let’s thrive!

Jessica-of-SheekGeek

 

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