Search found 24 matches

by joecool1211
Sat Jun 29, 2019 8:24 pm
Forum: Equipment Discussions
Topic: Are Dew Heaters Required in the Tropics
Replies: 0
Views: 58

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: 99

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: 794

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: 794

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: 794

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: 794

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: 794

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...
by joecool1211
Wed Mar 27, 2019 12:49 am
Forum: DIY Astronomy
Topic: Roll-Off Roof Observatory in Singapore
Replies: 9
Views: 794

Re: Roll-Off Roof Observatory in Singapore

Hi! The structure is 6x6 feet. Not exactly that big. It is rather empty at the moment except for the PC and some wires. I intend to move in a Losmandy mount and a William Optics AP setup. I might swap it out with an SCT later in the year when the planets are better positioned. Once the tripod goes i...
by joecool1211
Tue Mar 26, 2019 8:54 pm
Forum: Astrophotography
Topic: Sun - Active Region 2736
Replies: 0
Views: 94

Sun - Active Region 2736

This past weekend, I managed to capture this image of AR2736, the biggest active region that I've seen since getting my solar scope a year ago. It was rather exciting for me since we are now at around the solar cycle minimum.

Image

Enjoy!
by joecool1211
Tue Mar 26, 2019 12:28 am
Forum: DIY Astronomy
Topic: Roll-Off Roof Observatory in Singapore
Replies: 9
Views: 794

Re: Roll-Off Roof Observatory in Singapore

One of the easier part to describe is the All-Sky camera. To meet the requirement of remote operations and safety, I figured I would like to be able to see the sky before the RORO is opened, or to make a decision whether to image or not. This is an ASI290MC in a transparent covered, sealed junction ...