Entries tagged as astronomy

Moon-Mars-Venus conjunction of 2017

Moon, Mars, and Venus line up in the western sky

As I dropped by Gwangju to catch a movie (I'll be posting a comic tomorrow), the western sky was adorned with an alignment of some of the bright bodies of the solar system as seen from the Earth - the Moon, Mars, and Venus. The occurrence was relatively well-publicized, but I forgot to carry a dedicated camera tonight. Luckily, the telephoto lens of the iPhone 7 Plus pulled through and I was able to capture this sight over the neighbourhood just before Venus dropped behind the buildings.

Device: iPhone 7 Plus
Settings: 56mm - ISO 1000 - 1/12s - f/2.8
Filters: None
Time: 2017-02-01 21:12 KST
Location: Gwangju, Korea
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Today's "The Toon-Box"

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Supermoon 2016 captured on iPhone 7 Plus

Supermoon on Nov. 15, 2016
Much has been talked about this year's so-called Supermoon owing to the fact that it's the largest since January 26, 1948 and won't be surpassed until November 25, 2034. Closest approach was made on 22:52 KST on November 14 at a distance of 356,509km, about 28,000km closer than average. The resulting difference is hardly noticeable to the naked eye, but is nevertheless a nice occasion to look at the Moon again. Sadly, heavy clouds hid the Moon entirely at that time, so I saw the Moon the next evening, about 20 hours later and used the telephoto lens on the iPhone 7 Plus to take a photo of it. This is perhaps the most detailed shot of the Moon taken using only an iPhone's native camera module.

Device: iPhone 7 Plus
Settings: 56mm - ISO 20 - 1/60s - f/2.8
Filters: None
Time: 2016-11-15 19:06 KST
Location: Naju, Korea
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The streak of Iridium 60's flare

Iridium 60 in the northern sky on August 30, 2016 (14% size)

It's been more than two years since I talked about satellite flares here, but I now have something to show you. As you can see, I had a camera successfully capture the flares coming from an Iridium satellite for the first time. Past efforts used iPhones because I was focused in capturing the motion of the flares. In this photo, the ever-growing Naju Bitgaram City provided a colourful backdrop.

Device: Sony A5000 + SELP1650 (E PZ 16โ€“50 mm F3.5โ€“5.6 OSS)
Settings: 24mm - ISO 400 - 20s - f/4.5
Filters: None
Time: 2016-08-30 05:06 KST
Location: Naju, Korea
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Getting a less noisy shot of the Milky Way

Milky Way over the apartments on September 29, 2016 (14% size)

Nearly two months ago, I realized that the southern window at home provides a view of the Milky Way with long-exposure photography. Although the result from that time was satisfactory, I felt that a stacked approach would be even better. And now, you see the result of stacking eight photos. It's indeed much smoother even at a larger size.

By not using a star tracker, though, the stars were subject to lens distortion at the edges. This is where the flaws of the bundled lens of the A5000 become quite apparent. But I decided to leave it like this since it draws your attention to the center.

Device: Sony A5000 + SELP1650 (E PZ 16โ€“50 mm F3.5โ€“5.6 OSS)
Settings: 16mm - ISO 1000 - 20s - f/3.5
Filters: None
Time: 2016-08-29 21:48-22:05 KST
Location: Naju, Korea
8 photos stacked using Pixelmator
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