Sun-ISS transit through telescope

ISS photo from this solar transit was so clear that individual modules could be identified

It seems that I get to see a "great" transit of the ISS in front of the Sun once every year, with the space station appearing large enough to make it look like the letter H. This time, CalSky was predicting a nearly perfect condition at Naju, a near-center pass with an apparent diameter of more than one arc minute (63.1"). With the weather cooperating, I did not want to miss it.

To make sure I did not miss anything, I took out both my Celestron telescope with the smartphone adapter and my SX50 HS camera. I was hoping that at least one of them would catch the occurrence. I hurried with the setup and had everything ready just barely. I let my iPhone 6 Plus start recording the view through the eyepiece of the telescope in 240fps slow motion video, and pushed the shutter on my SX50 HS in continuous shoot mode, all mere moments before the transit.


The SX50 HS captured just one frame, which was sort of expected. The quality was easily better than my previous attempts thanks to the large apparent size. But the real deal was in the iPhone 6 Plus. It had captured 80 frames of the ISS in motion in total, with each frame besting the SX50 HS's efforts. The 240fps video capture truly shined, creating this smooth slow motion video as a result.

Composite of the ISS passing near the sunspot AR 12339

Here's the stacked and post-processed composite of the video in a single picture; click it to see it in full resolution. You can appreciate the details of the ISS and the sunspot AR 12339 quite better this way. If you look at the space station up close as seen in the first picture of this post, it's good enough to identify its major features. I've marked them for your convenience.

Telescope: Celestron NexStar 6SE + 25mm eyepiece + 2.5x barlow
Device: iPhone 6 Plus (afocal)
Settings: 29mm - 1280x720 - 240fps - f/2.2
Filters: None
Time: 2015-05-10 13:33:58 KST
Location: Naju, Korea
Stacked with RegiStax 6.1.0.8
- #1: 12 photos
- #2: 10 photos (ISS, each) / 100 photos (Sun)

Today's "The Toon-Box"

Defined tags for this entry: , , , , ,

Today's "The Toon-Box"

One of the first Apple Watch in Korea

Apple Watch Sport 42mm Space Gray arrives in Naju

Apple Watch first arrived at the hands of the regular users of the first wave countries in April 24, 2015. But it would not be sold at the Apple Store for the first few weeks, so either you had to get your order practically within seconds of the start of the pre-ordering back in April 10, or buy it at a handful of retailers that did get to sell them in the store at the launch. Because of this difficulty, apparently only a trickle have made over to Korea as of this writing, with the official launch date still unclear.

Meanwhile, my American friend Andy accidentally ordered two Apple Watches during the pre-order phase. His first choice, a silver Apple Watch Sport with green sport band, was slated to arrive between April 24 and May 8, but arrived at the launch day (April 24). He's been enjoying it since. His second choice, a space gray Apple Watch Sport with black sport band, was to arrive between May 13 and 27, but it arrived much sooner, on April 27. I asked him to ship the second one over to me, as I would pay him fully. He gladly accepted the offer, and sent it to Korea just after receiving it. Children's Day delayed the arrival a bit, but it finally came into my hands today.


I got to make this unboxing video soon after. You can see how one hand was recording the action and the other was furiously trying to open the box. Once everything was open, the full extent of what came with the package became visible. There's of course the watch itself, and the shorter lower strap for people with thinner wrist like me was also there. The magnetic wireless charger and a user manual was also included.

Contents of the box that ships the Apple Watch Sport

In the coming days, I'll post incremental reviews of the watch as I try to blend this into my daily life.
Defined tags for this entry: ,

Today's "The Toon-Box"


Copyright (C) 1996-2024 Woo-Duk Chung (Wesley Woo-Duk Hwang-Chung). All rights reserved.