Category Archives: Astrophotography

My Astrophotography Activities

Trip to Lick Observatory

Our recent trip to Lick Observatory.  The videos are taken from my dashcam.  The trip took as almost 1 hour in the windy road of Quimby heading to the Mount Hamilton

Pictures below are clickable for better viewing and resolution

Shane Telescope

The Shane Reflector

Below are pictures of the Great 36″ Refractor.  Still the 2nd biggest refractor in the world.

The Great 36" Refractor Telescope

The Great 36" Refractor Telescope

The Great 36" Refractor Telescope

The Great 36" Refractor Telescope

The Great 36" Refractor Telescope

The Great 36" Refractor Telescope

Software Architecture and Engineering

My day job is focused in creating software.  Mostly leaning on the applications side where customers and client can use our products.  It’s nice to see that a lot of people have actually touched the product I helped developed.  Okay so as I accumulate experience behind me, getting more structured in my thought process in creating and building an application, there are things that I also want to focus on like just building an experimental project where I can put all the features and I want the test the result.

Well I guess to do that is create something meaningful at first, and that’s why I decided to write something about creating a Web Application using React, GraphQL, Redux, Apollo and probably to use that as my next generation web site.  I have been using React, Redux, Flux, and GraphQL for a long time, probably a couple of years already.  Still wondering on what will be the next big thing after React but I guess we haven’t seen the limitations and we are still finding ways on how to do things better with React so I guess it will stay for a couple more years

Let’s see how it goes, you can follow the updates on my github page


Starting to contribute to Apollo mainly focusing on Mobile iOS and Android Development and also working on some Clean Architecture where GraphQL + Apollo Client and Redux works together in harmony.  I wrote a simple React Application that is using Redux and Apollo Client side by side.   The example application was using the Togetherness Level 2 where there’s still a clean separation between the Redux Store and Apollo Client to make sure that local store and remote store are managed properly.  You can take a look at the application [Just take note that since it is currently hosted on a free web dyno, it might take a while to load on startup as heroku shuts down free web dyno when not in use].   Currently hosted by Heroku using a Free Web Dyno.   The application is also using my GraphQL Server also hosted by Heroku here  Please feel free to play around with and the codes are on my Github repository here

Below is just a sample with the app in an iFrame 🙂

The Tulip Nebula


Gathered more data and did a very simple processing.  Very simple noise reduction.

I had a lot of problem capturing the Tulip Nebula because of some issues with probably my mount, my alignment, my guider or simple because of the weather.  It was very windy in the past few days and couldn’t control.  Anyway, I tossed half of my data worth around 5 hours of exposure.

Also I replaced my Orion OIII Filter and used an Astronomik OIII 12nm CCD Filter.  It looked better than the Orion as it is causing same halo on my images.

Dumbbell Nebula

The Dumbbell Nebula

Resolution: 2396×1708
Dates: June 11, 2018
Frames: 923×30″
Integration: 7.7 hours
Avg. Moon age: 26.90 days
Avg. Moon phase: 7.64% job: 2098870
RA center: 299.897 degrees
DEC center: 22.721 degrees
Pixel scale: 1.142 arcsec/pixel
Orientation: 266.947 degrees
Field radius: 0.467 degrees
Data source: Backyard

Great Cluster in Hercules

Sorry but I lost count.  Stars that are cramped in a very small space with huge hot blue stars and red cooler stars.

Resolution: 2712×1758

Dates: June 12, 2018
Frames: 415×30″
Integration: 3.5 hours
Avg. Moon age: 28.01 days
Avg. Moon phase: 2.60% job: 2098335
RA center: 250.427 degrees
DEC center: 36.464 degrees
Pixel scale: 1.141 arcsec/pixel
Orientation: 86.597 degrees
Field radius: 0.512 degrees
Data source: Backyard

Pinwheel Galaxy

The Pinwheel Galaxy is a spiral galaxy.  It has a distance to Earth of about 21 million light years.  It is a face off galaxy to Earth and beautiful to see all the galactic arms.

Resolution: 2580×2384
Dates: June 6, 2018Frames: 375×30″
Integration: 3.1 hours
Avg. Moon age: 21.90 days
Avg. Moon phase: 52.59% job: 2095577
RA center: 210.804 degrees
DEC center: 54.348 degrees
Pixel scale: 1.142 arcsec/pixel
Orientation: 86.614 degrees
Field radius: 0.557 degrees
Data source: Backyard

Whirlpool Galaxy

Whirlpool Galaxy

The Whirlpool Galaxy also known as M51a is an interacting spiral galaxy with an active galactic nucleus.  It is in the constellation of Canes Venatici and is about 15 to 35 million light-years.

[See my first photo of the Whirlpool Galaxy]

Resolution: 2835×1785
Dates: June 5, 2018
Frames: 180×30″
Integration: 1.5 hours
Avg. Moon age: 20.99 days
Avg. Moon phase: 62.19% job: 2093638
RA center: 202.473 degrees
DEC center: 47.193 degrees
Pixel scale: 1.141 arcsec/pixel
Orientation: 86.360 degrees
Field radius: 0.531 degrees
Data source: Backyard