Entries tagged as Mars

Close approach of Mars in 2020

Mars seen in 5-minute intervals at around midnight of October 9, 2020 during its close approach

With the red planet coming close again after two years, it gave me another good opportunity to take a detailed look of the surface using my equipment. The Nikon P1000 has been working well for me these days, so I pointed its lens to the sky around midnight to capture the photos. Although the total session lasted less than an hour, I got satisfactory results.

Last time the Mars was close, I photographed the eastern hemisphere. This time I got to see the western hemisphere, which has the famous features like Olympus Mons and Valles Marineris, one of the biggest examples of mountain and canyon in the solar system, respectively. Also, I got to see the polar ice caps on Planum Australe for the first time, a highlight of the otherwise reddish, 45-pixel wide (22.6" apparent) disc of the planet.

Device: Nikon P1000
Settings: 3000mm - ISO 100 - 1/500s - f/8
Filters: None
Time: 2020-10-09 00:18 - 00:54 KST
Location: Naju, Korea
44 photos processed with PIPP 2.5.9, RegiStax, and Pixelmator Pro 1.8
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Planetary observation with Nikon P1000

Saturn and Mars on October 19, 2018

I'm getting the hang of photographing the planets with P1000 after some practice. Jupiter sets below the horizon too early these days, so I targeted Saturn and Mars. Using the Moon as the reference for the manual focus (actual setting seems to vary up to ten dial ticks by the daily conditions) and turning off the vibration reduction (better to let the tripod stabilize on its own), I was able to take several photos for processing. Discernible in the results are the prominent differences in the surface colours of Mars, as well as the Cassini Division on the rings of Saturn.

Device: Nikon P1000
Settings: 3000mm - (Saturn: ISO 200 - 1/40s / Mars: ISO 100 - 1/160s) - f/8
Filters: None
Time: 2018-10-19 (Saturn: 19:15 / Mars: 20:50) KST
Location: Naju, Korea
(Saturn: 9 / Mars: 11) photos processed with PIPP 2.5.9 and RegiStax
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Mars at Closest Approach in 2018

Mars as seen in 10-minute intervals starting from the midnight of August 1, 2018

Mars comes close to Earth every two years or so, but due to the elliptical orbit the closeness varies a lot. It came as close as 0.373 AU in 2003, while it was 0.674 AU away at its approach in 2012. The closest approaches happen every 15 or 17 years, and the latest one happened on 16:50 KST, July 31, 2018, at a distance of 0.385 AU. The next one will happen in 2035. Since this year's occurrence happened during the day, I did the next best thing and got my telescope set up that night to take a good look.

Unfortunately, Mars is experiencing a planet-level dust storm since early June and it has not subsided yet. A peek at the planet during last week's lunar eclipse indeed showed a mostly uniform orange disk, confirming my fears. I wasn't about to give up, so I got my Baader filter out and hoped for the best. Thankfully, the two-hour shooting session did not go to waste as the hours of post-processing finally revealed some discernible surface details, as you can see here.

You can even observe the planet visibly rotating in this video that incorporates all the photos I took. It's similar to what I made two years ago, but the continuous shooting made for a more fluid animation.

Telescope: Celestron NexStar 6SE
Device: Sony A5000 (prime focus)
Settings: (1500mm) - ISO 100 - 1/100s - (f/10)
Filters: Baader Moon & Skyglow
Time: 2018-07-31 23:59 - 2018-08-01 01:50 KST
Location: Naju, Korea
481 photos processed with PIPP 2.5.9 and RegiStax

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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Looking out the window to see the Milky Way

The Milky Way Galaxy adorns the southern sky, atop the apartments (13.5% size)

A few hours after walking in the rain to see a movie yesterday, I was getting ready to sleep. Then I noticed that the sky was crystal clear, something I haven't seen in more than nearly two weeks (or three, in the night). Not to pass up this opportunity, I got my camera out. With so many stars visible, I wondered if the Milky Way Galaxy could be captured even with all the lights from the apartment buildings nearby.

After a few tries, it became clear that indeed it could be done, if somewhat faintly. Adjusting the levels, curves, and contrast brought out further details. Individual colour channels were untouched, yet the sky showed a very nice gradient. This may be an unintended affect of the light pollution near the horizon and I like how it turned out.

Device: Sony A5000 + SELP1650 (E PZ 16–50 mm F3.5–5.6 OSS)
Settings: 16mm - ISO 2000 - 20s - f/3.5
Filters: None
Time: 2016-07-08 00:44 KST
Location: Naju, Korea
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