Comments and questions about the
APOD on the main view screen.
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APOD Robot
- Otto Posterman
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Post
by APOD Robot » Tue Aug 02, 2022 4:05 am
A Moon Dressed Like Saturn
Explanation: Why does Saturn appear so big? It doesn't -- what is pictured are foreground clouds on
Earth crossing in front of the
Moon. The Moon shows a slight crescent phase with most of its surface visible by reflected
Earthlight known as
ashen glow. The
Sun directly illuminates the brightly lit
lunar crescent from the bottom, which means that the Sun must be below the horizon and so the image was taken before sunrise. This
double take-inducing picture was captured on 2019 December 24, two days before the Moon slid in front of the
Sun to create a
solar eclipse. In the foreground, lights from small
Guatemalan towns are visible behind the huge
volcano Pacaya.
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Fred the Cat
- Theoretic Apothekitty
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Post
by Fred the Cat » Tue Aug 02, 2022 5:11 am
The moon with accessories often make for fun photos.
IMG_9170 (2).JPG
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Freddy's Felicity "Only ascertain as a cat box survivor"
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gmPhil
- Ensign
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Post
by gmPhil » Tue Aug 02, 2022 8:04 am
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De58te
- Science Officer
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Post
by De58te » Tue Aug 02, 2022 11:57 am
Wow! What a great picture, Mr. Francisco Sojuel. For the first 5 seconds at least of clicking onto APOD I really thought it was Saturn! And which moon of Saturn I wondered had what looks like city lights?
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bls0326
- Science Officer
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Post
by bls0326 » Tue Aug 02, 2022 12:42 pm
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orin stepanek
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Post
by orin stepanek » Tue Aug 02, 2022 1:01 pm
SaturnMoon_Sojuel_960.jpg
Nice Moon shot! Good catch by Sojuel!
kit-cat.jpg
Siamese?? conjoined?? Na!
th-3921837213.jpg
Siamese!

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Orin
Smile today; tomorrow's another day!
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VictorBorun
- Commander
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Post
by VictorBorun » Tue Aug 02, 2022 1:41 pm
I wonder how come that stars are smeared like in a long exposure, Moon is crisp and
lights from small Guatemalan towns are crisp.
The three must move differentially, must they not?
A Moon Dressed Like Saturn.jpg
Or is Moon in fact smeared?
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Louis
- Asternaut
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Post
by Louis » Tue Aug 02, 2022 6:16 pm
Am I misinterpreting something in the caption? It seems to be saying that, since the Moon is illuminated from the bottom, the Sun is below the horizon so the picture was taken before sunrise. Could not the picture have been taken after sunset? Six months earlier??
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Ann
- 4725 Å
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Post
by Ann » Tue Aug 02, 2022 6:52 pm
orin stepanek wrote: ↑Tue Aug 02, 2022 1:01 pm
Nice Moon shot! Good catch by Sojuel!
Siamese?? conjoined?? Na!
Siamese!
Love your post and your kitty pictures, Orin!
Ann
Color Commentator
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XgeoX
- Science Officer
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Post
by XgeoX » Tue Aug 02, 2022 7:36 pm
VictorBorun wrote: ↑Tue Aug 02, 2022 1:41 pm
I wonder how come that stars are smeared like in a long exposure, Moon is crisp and
lights from small Guatemalan towns are crisp.
The three must move differentially, must they not?
Or is Moon in fact smeared?
If the moon was being tracked by the camera and the exposure was long enough then that would explain why the moon is sharp and there are star trails. As for the city lights being sharp it was a seperate exposure.
Ego vigilate
Ego audire
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XgeoX
- Science Officer
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Post
by XgeoX » Tue Aug 02, 2022 7:38 pm
Louis wrote: ↑Tue Aug 02, 2022 6:16 pm
Am I misinterpreting something in the caption? It seems to be saying that, since the Moon is illuminated from the bottom, the Sun is below the horizon so the picture was taken before sunrise. Could not the picture have been taken after sunset? Six months earlier??
You are correct, it was just left unsaid.
Ego vigilate
Ego audire
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Chris Peterson
- Abominable Snowman
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Post
by Chris Peterson » Tue Aug 02, 2022 8:20 pm
Louis wrote: ↑Tue Aug 02, 2022 6:16 pm
Am I misinterpreting something in the caption? It seems to be saying that, since the Moon is illuminated from the bottom, the Sun is below the horizon so the picture was taken before sunrise. Could not the picture have been taken after sunset? Six months earlier??
No. The angle of the ecliptic would be reversed, so we'd see the crescent on the lower right rather than the lower left. And the features on the Moon would be "upside down" compared with the features in this image.
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orin stepanek
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Post
by orin stepanek » Tue Aug 02, 2022 10:15 pm
Ann wrote: ↑Tue Aug 02, 2022 6:52 pm
orin stepanek wrote: ↑Tue Aug 02, 2022 1:01 pm
Nice Moon shot! Good catch by Sojuel!
Siamese?? conjoined?? Na!
Siamese!
Love your post and your kitty pictures, Orin!
Ann
Thanks Ann! The cats on the coach were in the write up! The Siamese I looked up !

Orin
Smile today; tomorrow's another day!
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Astronymus
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Post
by Astronymus » Wed Aug 03, 2022 8:07 pm
Fred the Cat wrote: ↑Tue Aug 02, 2022 5:11 am
The moon with accessories often make for fun photos.
IMG_9170 (2).JPG
This is true.
spidermoon.jpg
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»Only a dead Earth is a good Earth.«
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johnnydeep
- Captain
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Post
by johnnydeep » Wed Aug 03, 2022 8:18 pm
Astronymus wrote: ↑Wed Aug 03, 2022 8:07 pm
Fred the Cat wrote: ↑Tue Aug 02, 2022 5:11 am
The moon with accessories often make for fun photos.
IMG_9170 (2).JPG
This is true.
spidermoon.jpg
Oh no - it's the dreaded Spider Moon!
[EDIT: posted before seeing the image file name

Also, "Spider Moon, Spider Moon, friendly neighborhood Spider Moon. Etc."]
--
"To B̬̻̋̚o̞̮̚̚l̘̲̀᷾d̫͓᷅ͩḷ̯᷁ͮȳ͙᷊͠ Go......Beyond The F͇̤i̙̖e̤̟l̡͓d͈̹s̙͚ We Know."