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#Space

279 posts139 participants24 posts today
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cafuego 🔭🤦🏼‍♂️

I made the little seestar do some deep sky objects over night last night. I ran into a possible bug when trying to set up my original larger mosaic target, so instead I picked a few separate ones.

The horse head nebula; Markarians Chain in the Virgo cluster; the Leo Triplet of galaxies and Omega Centauri.

Because I dont have a tilting mount head for it (yet) I used alt-az mode, which means the field of view rotates over time, which is why the corners all look so rubbish :-)

A dark horse silhouette on a pink background. Stars are scattered all around.
A string of galaxies all in an arc, on a starry foreground.
Three fairly bright galaxies making a 😑 face.
A dense round swarm of thousands of stars.
#astrophotography#seestar#seestars30
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Dr. John Barentine FRAS

🚀 The Center for Space Environmentalism (CSE) has launched!

🪐 CSE is a group of scholars and experts who inform and advocate for issues pertaining to the protection of the increasingly crowded space environment. It is intended in part to counter the prevailing narrative about the 'inevitable' commercial development and exploitation of outer space. We welcome dialog and interaction with anyone interested in these topics.

💪🏼 I am proud to participate in this effort with my colleagues @salvabara, @planet4589, @sundogplanets and others.

🐘 Follow us on Mastodon: mastodon.social/@space_environ

🌎 And visit our website: spaceenvironmentalism.org/

An Apollo 17 'Earthrise' photo rotated 90 degrees appears at left. The words "CENTER FOR SPACE ENVIRONMENTALISM" appear in white block capital letters against the blackness of outer space at right.
#Space#SpaceEnvironment#SpaceEnvironmentalism
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Flipboard Science Desk

It is now indisputable that there was once water flowing on Mars, but how much, and even why, is a matter of debate. Read about how Martian lake beds and deltas reveal the Red Planet’s watery past, from @KnowableMag:

flip.it/3wB73z

Knowable Magazine | Annual ReviewsGhost rivers, hidden lakes: The long search for water on MarsMartian lake beds and deltas reveal the Red Planet’s watery past. But many puzzles remain, scientist Bruce Jakosky says.
#Science#Space#Mars
Public
Arp Bot 🤖

JWST image of Arp 16, also known as M66.

This image was taken as part of the PHANGS program. They take high-resolution observations of galaxies at many different wavelengths of light to learn how the small-scale details of how stars form influence the large-scale structures of galaxies.

Credit: NASA, ESA, CSA, STScI, J. Lee (STScI), T. Williams (Oxford), PHANGS Team
Source: webbtelescope.org/contents/med

A face-on barred spiral galaxy anchored by its central region, which has a bright blue central dot surrounded by a lighter diagonal blue bar structure made of a haze of stars, which forms an angled oval toward the top. The central core and bar fill about a third of the image. Two distinct spiny spiral arms made of stars, gas, and dust also start at the center, appearing brown or greenish within the blue bar, and extending to the edges, rotating clockwise in bright oranges. The brightest areas of the arms are two large arcs that start at the central region. The one at left stretches up to the top in a long arc and another at right extends toward the bottom. Scattered across the packed scene are bright blue pinpoints of light, which are stars spread throughout the galaxy. In areas where there is less orange, it is darker. A triangular area at bottom right is largely the black background of space.
#ArpGalaxy#Galaxy#Space
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