APOD: Earthshine Moon over Sicily (2021 Oct 18)

Comments and questions about the APOD on the main view screen.
User avatar
APOD Robot
Otto Posterman
Posts: 4838
Joined: Fri Dec 04, 2009 3:27 am

APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by APOD Robot » Mon Oct 18, 2021 4:06 am

Image Earthshine Moon over Sicily

Explanation: Why can we see the entire face of this Moon? When the Moon is in a crescent phase, only part of it appears directly illuminated by the Sun. The answer is earthshine, also known as earthlight and the da Vinci glow. The reason is that the rest of the Earth-facing Moon is slightly illuminated by sunlight first reflected from the Earth. Since the Earth appears near full phase from the Moon -- when the Moon appears as a slight crescent from the Earth -- earthshine is then near its brightest. Featured here in combined, consecutively-taken, HDR images taken earlier this month, a rising earthshine Moon was captured passing slowly near the planet Venus, the brightest spot near the image center. Just above Venus is the star Dschubba (catalogued as Delta Scorpii), while the red star on the far left is Antares. The celestial show is visible through scenic cloud decks. In the foreground are the lights from Palazzolo Acreide, a city with ancient historical roots in Sicily, Italy.

<< Previous APOD This Day in APOD Next APOD >>

scrubbierufous

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by scrubbierufous » Mon Oct 18, 2021 4:28 am

Lots of goodies in this post. I especially love the celestial show reference.

MP7

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by MP7 » Mon Oct 18, 2021 6:36 am

Great photo! Thanks. But are you sure about "rising" Moon?

User avatar
Ann
4725 Å
Posts: 12350
Joined: Sat May 29, 2010 5:33 am

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by Ann » Mon Oct 18, 2021 8:59 am

What a handsome photo!

Ann
Color Commentator

Herbert

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by Herbert » Mon Oct 18, 2021 9:47 am

The moon is not rising, but setting. It's a evening view, not morning.

Cheers, Herbert

atartrailer

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by atartrailer » Mon Oct 18, 2021 12:07 pm

Are we sure about the star names? Antares appears to be too far from Dschubba. What am I missing?
StarTrailer

draxzaster

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by draxzaster » Mon Oct 18, 2021 12:20 pm

I have to agree - that can't be delta Scorpii.

Guest

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by Guest » Mon Oct 18, 2021 12:41 pm

I agree this has to be moonset - this phase can only be seen in the west just before moonset.

yuricosmos

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by yuricosmos » Mon Oct 18, 2021 12:55 pm

But it is Antares - I used Stellarium - for 9th Oct at 18:16 this was the situation - Antares looks a 'long way' form Dschubba but only because its a telephoto picture - the Moon is only half a degree in diameter on the sky and so the star are about 5 degrees apart which is about right. I think this is another manifestation of the 'moon illusion'.

User avatar
orin stepanek
Plutopian
Posts: 7803
Joined: Wed Jul 27, 2005 3:41 pm
Location: Nebraska

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by orin stepanek » Mon Oct 18, 2021 1:27 pm

EarthshineSky_Giannobile_1212.jpg
Wow! I could have stayed on this APOD all day! It was beautiful! the
pictures and the video were awesome! Wish I could have kept the
annotations for this photo!
SaturnMoon_Sojuel_960.jpg
Right now I don't recall this APOD; but it is
really neat!
photo-1520168133788-3c084821ec1f.jpg
I believe this dog is waiting for his master to come home! It's
amazing how much dogs love us!
You do not have the required permissions to view the files attached to this post.
Orin

Smile today; tomorrow's another day!

User avatar
orin stepanek
Plutopian
Posts: 7803
Joined: Wed Jul 27, 2005 3:41 pm
Location: Nebraska

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by orin stepanek » Mon Oct 18, 2021 2:12 pm

EarthshineSky_Giannobile_1212.jpg
I put in annotations! 8-)
You do not have the required permissions to view the files attached to this post.
Orin

Smile today; tomorrow's another day!

User avatar
neufer
Vacationer at Tralfamadore
Posts: 18805
Joined: Mon Jan 21, 2008 1:57 pm
Location: Alexandria, Virginia

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by neufer » Mon Oct 18, 2021 5:27 pm

Click to play embedded YouTube video.
Click to play embedded YouTube video.
Art Neuendorffer

ilikespace80085
Asternaut
Posts: 4
Joined: Tue Oct 12, 2021 5:50 pm

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by ilikespace80085 » Mon Oct 18, 2021 5:36 pm

MP7 wrote: Mon Oct 18, 2021 6:36 am Great photo! Thanks. But are you sure about "rising" Moon?
true

User avatar
Ann
4725 Å
Posts: 12350
Joined: Sat May 29, 2010 5:33 am

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by Ann » Mon Oct 18, 2021 5:39 pm

orin stepanek wrote: Mon Oct 18, 2021 2:12 pm I put in annotations! 8-)
Thanks, Orin! :D

Ann
Color Commentator

gwagwa
Asternaut
Posts: 3
Joined: Tue Oct 12, 2021 5:51 pm

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by gwagwa » Mon Oct 18, 2021 5:40 pm

Boy I love Sicily!! I wonder if they're eating spaghetti ai ricci under that beautiful moon! :lol2:

User avatar
neufer
Vacationer at Tralfamadore
Posts: 18805
Joined: Mon Jan 21, 2008 1:57 pm
Location: Alexandria, Virginia

Dschubba-Doo

Post by neufer » Mon Oct 18, 2021 6:19 pm


yuricosmos wrote: Mon Oct 18, 2021 12:55 pm
But it is Antares - I used Stellarium - for 9th Oct at 18:16 this was the situation - Antares looks a 'long way' form Dschubba but only because its a telephoto picture - the Moon is only half a degree in diameter on the sky and so the star are about 5 degrees apart which is about right. I think this is another manifestation of the 'moon illusion'.
:arrow: Antares is more like 8 degrees from Dschubba (δ Scorpii).
https://en.wikipedia.org/wiki/Delta_Scorpii#Observation wrote:
<<In 1981 δ Scorpii was occulted by Saturn's rings as seen by Voyager 2, with starlight unexpectedly blocked even by the apparently empty gaps, indicating that "there is very little empty space anywhere in the main ring system.">>
Art Neuendorffer

Dario Giannobile

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by Dario Giannobile » Mon Oct 18, 2021 8:35 pm

The shot has been taken by a sigma 105 mm. You can verify the framed field with your preferred planetarium software....and you are right the moon is setting since the shot was taken on the 9th of October. A typos that could be fixed. D

User avatar
johnnydeep
Captain
Posts: 1588
Joined: Sun Feb 20, 2011 8:57 pm

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by johnnydeep » Mon Oct 18, 2021 8:56 pm

orin stepanek wrote: Mon Oct 18, 2021 2:12 pm EarthshineSky_Giannobile_1212.jpg
I put in annotations! 8-)
The annotations are in the original. On a PC at least, hover over the pic so the annotated version shows, then right-click and select "open in new tab". You should then be looking at the annotated image:
[ Oh wait, I guess that's exactly what you did - you made it seem like you added the text yourself :-) ]
--
"To B̬̻̋̚o̞̮̚̚l̘̲̀᷾d̫͓᷅ͩḷ̯᷁ͮȳ͙᷊͠ Go......Beyond The F͇̤i̙̖e̤̟l̡͓d͈̹s̙͚ We Know."

User avatar
orin stepanek
Plutopian
Posts: 7803
Joined: Wed Jul 27, 2005 3:41 pm
Location: Nebraska

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by orin stepanek » Tue Oct 19, 2021 3:26 am

johnnydeep wrote: Mon Oct 18, 2021 8:56 pm
orin stepanek wrote: Mon Oct 18, 2021 2:12 pm EarthshineSky_Giannobile_1212.jpg
I put in annotations! 8-)
The annotations are in the original. On a PC at least, hover over the pic so the annotated version shows, then right-click and select "open in new tab". You should then be looking at the annotated image:

[ Oh wait, I guess that's exactly what you did - you made it seem like you added the text yourself :-) ]
Actually; what I did was type the annotations in! I also made the pic Screen ready I'll have to try your little trick if I don't forget it! :mrgreen:
Orin

Smile today; tomorrow's another day!

Sa Ji Tario

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by Sa Ji Tario » Tue Oct 19, 2021 3:48 am

Leonardo considers and was concerned to explain the effect that we gave his name to the ashen light of the Moon in a new phase.-
On one occasion in a commercial premises where there was a corridor with mirrors on both walls, it reflected over and over again to infinity the images that were reflected from the original to the left and right, causing an infinite row of the same image to appear in both mirrors. . We know that in each reflection some light energy is lost and that in some of them it will not have enough to achieve an image but we do not know in what number. The same thing happens with the ashen light that is produced with the reflection perpendicular to the bodies that receives it, that in some of these ways it is certain that it returns to the Sun again, as if to say that it has already performed a mischief.t
It is just a "reflection" on the reflection of ligh

User avatar
johnnydeep
Captain
Posts: 1588
Joined: Sun Feb 20, 2011 8:57 pm

Re: APOD: Earthshine Moon over Sicily (2021 Oct 18)

Post by johnnydeep » Tue Oct 19, 2021 1:09 pm

orin stepanek wrote: Tue Oct 19, 2021 3:26 am
johnnydeep wrote: Mon Oct 18, 2021 8:56 pm
orin stepanek wrote: Mon Oct 18, 2021 2:12 pm EarthshineSky_Giannobile_1212.jpg
I put in annotations! 8-)
The annotations are in the original. On a PC at least, hover over the pic so the annotated version shows, then right-click and select "open in new tab". You should then be looking at the annotated image:

[ Oh wait, I guess that's exactly what you did - you made it seem like you added the text yourself :-) ]
Actually; what I did was type the annotations in! I also made the pic Screen ready I'll have to try your little trick if I don't forget it! :mrgreen:
My mistake. You made it look enough like the original that a quick glance had me fooled.
--
"To B̬̻̋̚o̞̮̚̚l̘̲̀᷾d̫͓᷅ͩḷ̯᷁ͮȳ͙᷊͠ Go......Beyond The F͇̤i̙̖e̤̟l̡͓d͈̹s̙͚ We Know."