Sidewalk Astronomy

Sidewalk Astronomy

Thursday, March 31, 2016

International Space Station Flyby

The International Space Station (ISS) flew pass Singapore this morning at 6.24am. Its brightness was about mag -3.3 and it lasted quite a long while before it was out of sight. The ISS flew between the Moon and Mars, with Saturn in the middle. I managed to take a video of it! This video was taken at Commonwealth Close, Singapore. Best viewed in full screen. Note the bight moving object relative to the Moon.



Some fun facts about the ISS:
1) It's about 400km above sea level.
2) It cost about $100 billion to build.
3) There are 6 astronauts and cosmonauts living in the ISS.
4) It takes just 90 minutes to complete an orbit around Earth.
5) The ISS is about 6 football fields wide.

Friday, March 18, 2016

Poison

A couple of days ago, we held an observation session at Bishan Park for the public to come view the first-quarter Moon, Jupiter, and M42. It was a good time to put my newly acquired C6 SCT to the test. The collimation held even though it suffered a considerable bump on the door just as I was leaving home for Bishan Park.

I was foolish enough to think that I was satisfied by the views that the C6 SCT has offered. Boy, was I wrong.

Gary came over silently like a cat and deftly mounted his binoviewer onto the C6 when I was enjoying my dinner. I was just beside my telescope when both Dave and Gary turned and gave me a sheepish smile. My eyes widen upon seeing the binoviewer! I knew the view had to be awesome with it!

Not disappointed, I got the same feeling as I did when I first saw Saturn through a huge telescope about three years ago. I was awestruck, breathless, and dumbfounded all at once. The Moon looked supremely amazing through a binoviewer with a twin 20mm eyepiece. It really feels surreal to look at celestial objects up close with both your eyes. Dave and Gary left me for a brief time to entertain the crowd at their stations. I gave myself the pleasure of switching celestial objects - from the Moon to Jupiter.

Oh my goodness.......................................

At this point in time, no words can convey how I felt when I saw Jupiter with both my eyes at 75x magnification. It's totally different. The Great Red Spot was present and that was a huge bonus that only made the viewing experience wayyyyyy sweeter!

I think I am hooked by this binoviewer. In our group, when we are addicted to something, we term it as "poison". I think I have been poisoned by binoviewers.

Just when I thought that nothing else can poison me, here comes Dave 2" click-zoom eyepiece from Baader. Having used the regular 1.25" eyepiece, I personally know how tough it is to view at objects, especially when you have no tracking mount to work with. Due to Earth's rotation, I have got to constantly shift the manual mount to place the object into view again. I have to do this often as the magnification goes higher and higher. With a good quality 2" zoom eyepiece that offers a wide field of view (FOV), I figured that I wouldn't need to do the adjustments that often. It can be very tiring to amateur astronomers.

However, there is another equipment that I have got to get before getting the eyepiece. I have got to switch to the 2" diagonal with SCT treading in order to fit the 2" eyepiece.

Also, I thought of getting myself a better finderscope, the Rigel Quikfinder. I am now stuck with a 6x30 finder that requires me to set myself in yoga positions to find object in the sky.

Got to save money to get all these stuff, man. It ain't cheap.

Tuesday, March 15, 2016

A New Breath Of Life

Bought a used Celestron C6 telescope yesterday! It's in quite a good condition, at a very reasonable price. Thanks to my astronomy buddies Gary and Dave for helping me vet the sale and teaching me how to collimate an SCT. Also, thanks to the seller who was gracious enough to let me try out the telescope for a few nights before fully committing to it.

Thursday, March 10, 2016

Solar Eclipse 9 March 2016

Now that I have cooled down from the long exposure of the Sun, I would like to share my thoughts on the solar eclipse that happened yesterday.

We got quite a scare yesterday morning when we first reached Bishan Park at 6.15am. The pre-dawn sky was still heavily blanketed by clouds. I thought to myself, "Uh-oh... let's hope for the best and be prepared for the worse." We continued setting up our telescopes with a heavy heart.

Lo and behold, the clouds started to leave at about 6.45am and there stood Venus in the sky, shining brightly above, as if it was a promise by the Morning Star, that the day will not be in vain.

True enough, the eastern view was clear throughout the day!

Throngs of people started streaming in and made a beeline towards our telescopes. Some of us were busy giving out free solar glasses to the public for safe viewing, while some of us were busy explaining to the crowd about what to expect soon.

My very first solar eclipse! Woohoo! Gosh I could not contain my excitement when I spotted the Sun slowly getting devoured by the Moon until it became a crescent. I thought to myself, "Not bad for a first timer."

The whole sky turned slightly dark at the maximum point (87%) of the eclipse at 8.23am. The whole experience was eeriely surreal to me - seeing a brightly lit place turned ghostly pale for a brief time.

I only had a few moments to fully admire the eclipse as my station was jam packed by curious folks from all walks of life. Nonetheless, we had great fun bringing the experience to the general public. Many of them left with pictures of the eclipse taken with their camera phone on our telescopes. Oh, and it was also a first time for many of us amateur astronomers to witness this beautiful and stunning partial solar eclipse.

This will always be an awesome day that I will remember in many years to come.

Thanks to my astro buddies for making this event happen, you know who you are *wink*.

Thanks to Channel News Asia, Asian Scientist Publishing, and Power 98 for covering the news of the solar eclipse at Bishan Park.

I have attach a video of the coverage of the event. Credits to Alice Chia, Channel New Asia.


Here are some pictures of the event. Photo credits to Dave Ng and Avarielle.

Just arrived.

Setting up.

Waiting.
Some photographers came as well.
Some people started coming in.

Solar eclipse!
Hot, hot, hot!!!

How the solar eclipse looked like at its maximum.

How it looked like through my ST-80 telescope.

Enthusiastic people trying to take a picture of the solar eclipse.
Crowded!

A zoom-in version of the above picture.