Entries tagged as astronomy

Total lunar eclipse of 2018 (Super Blue Blood Moon)

25-photo composite of the 31 January 2018 total lunar eclipse (16% size)

The first total lunar eclipse of this year was an interesting one in that it was a so-called "Super Blue Blood Moon". The visible size is the largest, so it's a Supermoon. It's the second full Moon of the month, so it's a Blue Moon. The Moon hidden behind the Earth's shadow during the eclipse looks reddish, so it's a Blood Moon. This was the first such occurrence seen in Korea since December 1982, so it's not common.

The sky was pretty cloudy all the way to the late evening yesterday, so I had nearly given up on seeing it. But I was in luck and the clouds had started clearing up soon after the eclipse had started. So I hurriedly got my Sony camera and a tripod out to catch the event. It had only half a charge left, but I managed to photograph the progress for two hours, including the deepest point occurring around 22:29. I think it turned out fine - here's the composite photo showing the progress of the eclipse in 5-minute interval.

Device: Sony A5000 + SELP1650 (E PZ 16โ€“50 mm F3.5โ€“5.6 OSS)
Settings: 50mm - ISO 100 - 2s - f/5.6
Filters: None
Time: 2018-01-31 21:40-23:40 KST
Location: Naju, Korea
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This summer's lightning strikes at Bitgaram City

Bolt of lightning strikes the south of Naju Bitgaram City

This summer is proving to be particularly lightning-prone around this area. About two weeks ago (July 14), a lightning strike set fire to an empty house near my home. This afternoon, between around 17:10 and 17:25, lightning was striking left and right every few seconds. The two photos you see here were taken at 17:18. As a result, the internet connection at my apartment complex was down for about an hour and a half (and subsequently this website was not accessible at the time), and a small village near the city experienced a power outage.

And another strike next to it, a few seconds apart

Just as the lightning started to subside, we were met with heavy downpour for about 15 minutes. The rain eventually subsided about half an hour later, but not before filling the then-empty company pond and creating pockets of water on the road around the city. What a strange weather to be had for the last day of July.
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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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