APOD: Earthset from Orion (2022 Nov 23)

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APOD: Earthset from Orion (2022 Nov 23)

Post by APOD Robot » Wed Nov 23, 2022 5:06 am

Image Earthset from Orion

Explanation: Eight billion people are about to disappear in this snapshot from space. Taken on November 21, the sixth day of the Artemis 1 mission, their home world is setting behind the Moon's bright edge as viewed by an external camera on the outbound Orion spacecraft. The Orion was headed for a powered flyby that took it to within 130 kilometers of the lunar surface. Velocity gained in the flyby maneuver will be used to reach a distant retrograde orbit around the Moon. That orbit is considered distant because it's another 92,000 kilometers beyond the Moon, and retrograde because the spacecraft will orbit in the opposite direction of the Moon's orbit around planet Earth. Orion will enter its distant retrograde orbit on Friday, November 25. Swinging around the Moon, Orion will reach a maximum distance (just over 400,000 kilometers) from Earth on Monday November 28 exceeding a record set by Apollo 13 for most distant spacecraft designed for human space exploration.

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VictorBorun
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Re: APOD: Earthset from Orion (2022 Nov 23)

Post by VictorBorun » Wed Nov 23, 2022 10:43 am

Here Moon feels naturally coloured. Conversions from black-and-white historic snapshots felt less natural.

To see why, I strengthened the contrast of the moonscape part to maximum. Real colours are less predictable:
colourful moon.jpg
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Re: APOD: Earthset from Orion (2022 Nov 23)

Post by Redbone » Wed Nov 23, 2022 1:15 pm

Is the apparent bulge of the Earth in this APOD real or an artifact of the picture?

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Re: APOD: Earthset from Orion (2022 Nov 23)

Post by orin stepanek » Wed Nov 23, 2022 1:20 pm

earthset-snap01.png
I loved this photo from Orion! I loved the Apollo13 video clip also! 8-)
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Re: APOD: Earthset from Orion (2022 Nov 23)

Post by ignacio_db » Wed Nov 23, 2022 2:08 pm

Why does the moon look so featureless and kind of dark?

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Re: APOD: Earthset from Orion (2022 Nov 23)

Post by bystander » Wed Nov 23, 2022 4:51 pm

Redbone wrote: Wed Nov 23, 2022 1:15 pm Is the apparent bulge of the Earth in this APOD real or an artifact of the picture?
It's not a "Full Earth". The Sun is obviously down and to the left.
Know the quiet place within your heart and touch the rainbow of possibility; be
alive to the gentle breeze of communication, and please stop being such a jerk.
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Re: APOD: Earthset from Orion (2022 Nov 23)

Post by De58te » Wed Nov 23, 2022 6:08 pm

ignacio_db wrote: Wed Nov 23, 2022 2:08 pm Why does the moon look so featureless and kind of dark?
Since we see the planet Earth way behind the Moon and since the Moon always presents the same face to the Earth because of tidal locking, what you are seeing is the "dark side of the Moon". It is actually more featureless because there are no dark seas, except for a couple rather small ones.

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Re: APOD: Earthset from Orion (2022 Nov 23)

Post by De58te » Wed Nov 23, 2022 6:18 pm

This reminds me of the Apollo 8 photograph of the Earth where somebody said (I believe it was Carl Sagan) Everybody who was ever born and died or is alive today .. is in this photograph.. except for 3 men .. who are behind the camera! Well in this case since the spaceship is unmanned .. everybody who is alive or has died.. except for a handful of famous corpses who were buried in space .. is captured in this photograph!

Rudedog

Re: APOD: Earthset from Orion (2022 Nov 23)

Post by Rudedog » Wed Nov 23, 2022 6:35 pm

Great picture? Why is the moon so blurry? What are you hiding from us?

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Re: APOD: Earthset from Orion (2022 Nov 23)

Post by bystander » Wed Nov 23, 2022 6:53 pm

Gerry Driscoll wrote:There is no dark side in the moon, really. Matter of fact, it's all dark. The only thing that makes it look light is the sun.

Eclipse, Dark Side of the Moon, Pink Floyd
Know the quiet place within your heart and touch the rainbow of possibility; be
alive to the gentle breeze of communication, and please stop being such a jerk.
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Re: APOD: Earthset from Orion (2022 Nov 23)

Post by ignacio_db » Wed Nov 23, 2022 6:57 pm

De58te wrote: Wed Nov 23, 2022 6:08 pm
ignacio_db wrote: Wed Nov 23, 2022 2:08 pm Why does the moon look so featureless and kind of dark?
Since we see the planet Earth way behind the Moon and since the Moon always presents the same face to the Earth because of tidal locking, what you are seeing is the "dark side of the Moon". It is actually more featureless because there are no dark seas, except for a couple rather small ones.
I understand we see the far side of the moon in this picture. But such side has an even more dense field of craters than the near side, which are not seen in this image. As if the contrast of that portion of the image has been washed out in processing, or something to do with the sensor saturating due to the brightness that the moon should have when illuminated by the sun.

I still don't get it.

heehaw

Re: APOD: Earthset from Orion (2022 Nov 23)

Post by heehaw » Wed Nov 23, 2022 10:50 pm

I am an astronomer! We astronomers are VERY fortunate that that damned Moon is SO dark (non-reflective). Even so, it makes many nights not useable for REAL astronomy!

Sa Ji Tario

Re: APOD: Earthset from Orion (2022 Nov 23)

Post by Sa Ji Tario » Wed Nov 23, 2022 10:59 pm

bystander wrote: Wed Nov 23, 2022 4:51 pm
Redbone wrote: Wed Nov 23, 2022 1:15 pm Is the apparent bulge of the Earth in this APOD real or an artifact of the picture?
It's not a "Full Earth". The Sun is obviously down and to the left.
In this image the Sun is above and to the right, in addition to a little "behind" the Earth, that is why there is no illumination in that part of the Moon

Sa Ji Tario

Re: APOD: Earthset from Orion (2022 Nov 23)

Post by Sa Ji Tario » Wed Nov 23, 2022 11:02 pm

Sa Ji Tario wrote: Wed Nov 23, 2022 10:59 pm
bystander wrote: Wed Nov 23, 2022 4:51 pm
Redbone wrote: Wed Nov 23, 2022 1:15 pm Is the apparent bulge of the Earth in this APOD real or an artifact of the picture?
It's not a "Full Earth". The Sun is obviously down and to the left.
In this image the Sun is above and to the right, in addition to a little "behind" the Earth, that is why there is no illumination in that part of the Moon
Sorry error...error...error