Craters On Moon:

Craters on Moon:

1° From crater Theophilus (100km diameter) below to crater Langrenus above.

2° From bottom to top, dark titanium rich lava in the Sea of Fertility then the diamond shaped patch is the Marsh of Sleep. Small bright crater Proclus is thought to be a recent impact crater and has thrown out bright ejecta that is much lighter than the surrounding ancient weathered rock. Above is the rather hexagonal Mare Crisium.

3° From the Sinus Iridium top left through the Mare Imbrium with the Alpine Valley in the centre. (This original image is horizontal)

4° At the middle and bottom of this image, sunlight is shining on a mountain peak in the Alexander crater which lies beyond the day/night terminator.

Image credit: John Purvis

2025 January 27

Pleiades over Half Dome Image Credit & Copyright: Dheera Venkatraman

Explanation: Stars come in bunches. The most famous bunch of stars on the sky is the Pleiades, a bright cluster that can be easily seen with the unaided eye. The Pleiades lies only about 450 light years away, formed about 100 million years ago, and will likely last about another 250 million years. Our Sun was likely born in a star cluster, but now, being about 4.5 billion years old, its stellar birth companions have long since dispersed. The Pleiades star cluster is pictured over Half Dome, a famous rock structure in Yosemite National Park in California, USA. The featured image is a composite of 28 foreground exposures and 174 images of the stellar background, all taken from the same location and by the same camera on the same night in October 2019. After calculating the timing of a future juxtaposition of the Pleiades and Half Dome, the astrophotographer was unexpectedly rewarded by an electrical blackout, making the background sky unusually dark.

∞ Source: apod.nasa.gov/apod/ap250127.html

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chbnb

2 years ago

Cone and Foxfur Nebulae

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chbnb

3 years ago

NGC 6523, Lagoon

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chbnb

1 week ago

Quiver Tree Forest… Despite the light pollution of neighboring city Keetmanshoop, the Milky Way was bright enough so one can say it’s a bortle 1-2 sky, which is actually the case everywhere in Namibia. (gear in tags, settings and process here )

eg_astrophotography

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chbnb

1 year ago

The Moon... revealing its scars, its colours, its history, its strength, its hypnotic beauty, its pride, its majesty... Taken from my backyard, South of France.

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chbnb

5 years ago