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Ted Stryk

@tedstryk.bsky.social

2.4K followers 150 following 560 posts

Interplanetary Dumpster Diver. Asteroid (230728) Tedstryk Images I post are Copyright Ted Stryk (processed or taken by me) unless otherwise noted. Professor at Roane State CC in Oak Ridge, TN

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Ted Stryk @tedstryk.bsky.social · 3d

Ganymede, moon of Jupiter, from Voyager 2 on July 9, 1979. The edge of the polar frost can be seen in the upper right.

Ganymede, centered on a crater in a complex are of the surface.

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Ted Stryk @tedstryk.bsky.social · 8d

Dione, moon of Saturn, from Voyager 1 on November 12, 1980. This photomosaic represents the highest resolution view of Dione from the Voyagers.

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Reposted by Ted Stryk

Daniel Machacek @danielmachacek.bsky.social · 8d

My new color photographic map of Pluto is now online.

Full resolution image version (~322Mpix) is available on Flickr www.flickr.com/photos/10958...
PDF version (~73MB) is available here: drive.google.com/file/d/1EW-x...

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Small preview of color photographic map of Pluto in Mollweide oblique projection. It contains one large global map with four small hemispheric maps and basic description. Full version of this map is available for download in links in the main post.
Credit: NASA/JHU-APL/SwRI/Marc W. Buie/ESA/Daniel Machacek.

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Ted Stryk @tedstryk.bsky.social · 9d

Dione, moon of Saturn, from Voyager 2 on August 22, 1981.

A half phase view of Dione, moon of Saturn.

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Ted Stryk @tedstryk.bsky.social · 9d

Dione, moon of Saturn, from Voyager 1 on November 12, 1980. The wispy trailing hemisphere can be seen on the left-hand side.

A gibbous Dione from Voyager 1. The upper portion is out of the frame.

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Ted Stryk @tedstryk.bsky.social · 14d

Sorry, but we have pictures of the shooter, and he's a radical

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Ted Stryk @tedstryk.bsky.social · 15d

Europa, moon of Jupiter, from Galileo on its 17th orbit of Jupiter in September 1998.

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Ted Stryk @tedstryk.bsky.social · 15d

In my hurry to share this before I got out the door this morning, I accidentally called this Mars in the original post.

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Ted Stryk @tedstryk.bsky.social · 15d

Saturn from the Hubble Space Telescope in June of 2018. The color data used here extends from near UV to near IR, which is why the intensity of the features on the Saturnian disk seems more pronounced.

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Ted Stryk @tedstryk.bsky.social · 15d

Gah!

Reposted by Ted Stryk

Luc Perrot @lucperrot.bsky.social · 17d

Actuellement deux comètes présentes dans notre système solaire semblent se tirer la bourre. Leur nom de code : C/2025 K1 ATLAS (à gauche) et C/2025 R2 SWAN (à droite). En réalité leurs trajectoires respectives sont très différentes.
Reunion Island - 20 septembre 2025.

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Ted Stryk @tedstryk.bsky.social · 17d

Saturn, rings, and moons on August 30-31, 1979, from Pioneer 11 as it approached the planet. This was produced using images over a two and half hour period that spanned from just about midnight on August 30th into the wee hours of August 31.

Saturn from the approaching Pioneer 11. During this approach humanity saw the night side of the rings at an angle unachievable from earth (although the night side can be seen at times near a ring plane crossing, but the rings are much closer to edge on). Titan can be seen to the upper left, and a smattering of other moons made cameos.

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Ted Stryk @tedstryk.bsky.social · 20d

A more distant shot of Io, moon of Jupiter, showing Loki Patera, the dark feature in the upper center, from Juno as it receded from Io on December 30th, 2023.

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Ted Stryk @tedstryk.bsky.social · 21d

Io, moon of Jupiter, from Juno on December 30, 2023.

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Ted Stryk @tedstryk.bsky.social · 22d

The moon from the Galileo spacecraft during its flyby in December, 1992. The quality of the images it returned really shows what could have been had its antenna opened (it could send back images at a high rate with its omnidirectional antenna near earth, but not from Jupiter).

Crescent moon from Galileo, looking down from the north.

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Ted Stryk @tedstryk.bsky.social · 22d

Another film image of the moon from Zond 8 on October 24, 1970.

The moon, including the Orientale basin.

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Ted Stryk @tedstryk.bsky.social · 23d

The earth and moon from Zond 8 on October 24, 1970. This image was taken on film that was returned to earth.

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Ted Stryk @tedstryk.bsky.social · 23d

Europa from the Galileo spacecraft in June of 1997. The hemispheric differences in color are quite apparent when one compares the left and right sides of this image.

Europa from Galileo during its 9th orbit of Jupiter.

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Ted Stryk @tedstryk.bsky.social · 24d

Je ne sais pas qui vous êtes, mais merci pour vos magnifiques photos et légendes. J'ai l'impression de voyager à travers la France.

Ted Stryk @tedstryk.bsky.social · 24d

Pioneer Venus too, if someone would put it on the web.

Ted Stryk @tedstryk.bsky.social · 24d

Yeah, but I'm just thinking of pretty global pictures right now. The lack of coverage of the Venusian surface is painful.

Ted Stryk @tedstryk.bsky.social · 24d

When I see all these new Mars images, I can't help but wonder what such a camera could show us at other worlds. We have great coverage of earth and Mars, plentiful UV coverage of Venus (though no active orbiter now). What would we see at Triton, moon of Neptune?

Triton from Voyager 2 near closest appraoch

A thin crescent Triton from Voyager 2 after closest approach

The last view of Triton from Voyager 2 before it filled the narrow angle camera field of view

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Reposted by Ted Stryk

Daniel Machacek @danielmachacek.bsky.social · 25d

A few selected images of Mars processed from a new batch of data from the EXI camera aboard the Hope probe.
The dates and times of the images and some details are in the ALT text.

Global color image of Mars from Hope Probe with north polar ice cap visible on the top of the image, Valles Marineris on the left and lots of clouds over Meridiani Planum on the right.
Date: December 21, 2024. 14:46 UTC.
Credit: Emirates Mars Mission (EMM)/EXI/D. Machacek.

Global color image of Mars from Hope Probe with north polar ice cap visible on the top of the image, Olympus Mons near the center, bright cloud over Alba Mons on the right near terminator and fan shaped clouds around Arsia Mons in the lower center.
Date: December 5, 2024. 13:07 UTC.
Credit: Emirates Mars Mission (EMM)/EXI/D. Machacek.

Global color image of Mars from Hope Probe with north polar ice cap visible on the top of the image, Gale crater (landing place of Curiosity rover) near the center and interesting cloud between Elysium Mons and Albor Tholus near terminator.
Date: November 28, 2024. 15:20 UTC.
Credit: Emirates Mars Mission (EMM)/EXI/D. Machacek.

Color image of crescent Mars from Hope Probe with south polar ice cap visible at the bottom of the image, the giant Tharsis volcanoes near the center, Noctis Labyrinthus in the center right near terminator and Olympus Mons volcano at the upper left of the image.
Date: February 6, 2025. 04:04 UTC.
Credit: Emirates Mars Mission (EMM)/EXI/D. Machacek.

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Ted Stryk @tedstryk.bsky.social · 26d

Direct measurements of the inner magnetosphere and first hints of the atmosphere. Of course the main purpose was to dispose of the spacecraft so that it wouldn't hit Enceladus someday.

Ted Stryk @tedstryk.bsky.social · 28d

Two images of Enceladus, moon of Saturn, on September 14, 2017, from the Cassini spacecraft, days before the mission was intentionally crashed into the planet.

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