Search found 27 matches

by joecool1211
Mon Apr 06, 2020 2:00 pm
Forum: Astrophotography
Topic: ISS Transit and AR2759
Replies: 2
Views: 594

ISS Transit and AR2759

This past Saturday, I made a trip to Kranji Dam to catch my first ISS solar transit! Here is one of the frames I managed to capture with a more detailed view of AR2759 superimposed on it. https://astrob.in/b8wusy/B/rawthumb/gallery/get.jpg?insecure There is a link to my blog on from the Astrobin pag...
by joecool1211
Thu Jan 02, 2020 1:10 am
Forum: Astrophotography
Topic: Annular Solar Eclipse 26 Dec 2019
Replies: 2
Views: 883

Re: Annular Solar Eclipse 26 Dec 2019

I know it has been a week since the eclipse, but I finally got down to processing the narrowband pictures.

Image

Image

I've posted more info about the event on my blog.
by joecool1211
Sat Oct 26, 2019 11:00 am
Forum: Astrophotography
Topic: Lunar Explorations
Replies: 0
Views: 1306

Lunar Explorations

The weather in Singapore has been pretty uncooperative for astrophotography these past few weeks, with only short windows of clear skies. Hence, I've turned to Lunar imaging to make use of the limited imaging time. Here are a couple of recent images (they link to a more extensive write up on my blog...
by joecool1211
Sat Jun 29, 2019 8:24 pm
Forum: Equipment Discussions
Topic: Are Dew Heaters Required in the Tropics
Replies: 1
Views: 1227

Are Dew Heaters Required in the Tropics

Just wondering if, in your experience, dew heaters are required to use scopes in the tropics? Or would dew shields suffice?

I'm thinking along the lines of refractors, SCTs, and Mak-Newts (tubes with a piece of glass exposed at the front).

Thanks!
by joecool1211
Tue May 21, 2019 1:08 am
Forum: Astrophotography
Topic: First Narrowband Attempt
Replies: 1
Views: 985

First Narrowband Attempt

I've finally managed to get a set of narrow band images and here is my first attempt at processing them. https://astrob.in/406657/0/rawthumb/gallery/get.jpg?insecure It has been a steep learning curve for both acquisition and processing! I looked at some of Ivan's images and (aside from being blown ...
by joecool1211
Mon Apr 29, 2019 9:26 pm
Forum: DIY Astronomy
Topic: Roll-Off Roof Observatory in Singapore
Replies: 9
Views: 3669

Re: Roll-Off Roof Observatory in Singapore

And here is my first attempt at narrowband. Have only a Ha filter at the moment.

Image

The observatory is working fine and it is really great having a system I can power up for a spell of imaging when the sky clears up.
by joecool1211
Sat Apr 13, 2019 4:47 pm
Forum: DIY Astronomy
Topic: Roll-Off Roof Observatory in Singapore
Replies: 9
Views: 3669

Re: Roll-Off Roof Observatory in Singapore

Finally, here is the first light capture from the observatory (one of the clearest nights lately)!

Image

This was operated remotely from some 10km away.
by joecool1211
Fri Apr 12, 2019 11:00 am
Forum: DIY Astronomy
Topic: Roll-Off Roof Observatory in Singapore
Replies: 9
Views: 3669

Re: Roll-Off Roof Observatory in Singapore

Now comes the scope cover and flat panel. https://live.staticflickr.com/7843/40623825863_902a978321_z.jpg I 3D printed (using a provider I found on AliExpress) a cover from https://www.thingiverse.com/thing:2307397 and hooked that up to a hobby servo. It is controlled by an Arduino for remote open/c...
by joecool1211
Mon Apr 01, 2019 1:07 am
Forum: DIY Astronomy
Topic: Roll-Off Roof Observatory in Singapore
Replies: 9
Views: 3669

Re: Roll-Off Roof Observatory in Singapore

Closely related to the weather station is the ASCOM Safety Monitor. This is a component that determines whether conditions are "Safe". When conditions are "Unsafe", SGPro can trigger a shutdown sequence to park the telescope and close the observatory. The weather station monitors local conditions. B...
by joecool1211
Thu Mar 28, 2019 1:58 am
Forum: DIY Astronomy
Topic: Roll-Off Roof Observatory in Singapore
Replies: 9
Views: 3669

Re: Roll-Off Roof Observatory in Singapore

Next up is the Weather Station. I'll describe the physical devices here and talk more about the weather safety monitor in a later post. I based this project heavily on https://github.com/manojkoushik/Arduino_ObservingConditions . It comprises of the Arduino Sketch, the ASCOM driver, and a Windows ap...