APOD: Moon-Venus-Mars Skyline (2015 Feb 28)

Comments and questions about the APOD on the main view screen.
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APOD Robot
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APOD: Moon-Venus-Mars Skyline (2015 Feb 28)

Post by APOD Robot » Sat Feb 28, 2015 5:09 am

Image Moon-Venus-Mars Skyline

Explanation: Taken on February 20, five different exposures made in rapid succession were used to created this tantalizing telephoto image. In combination, they reveal a wide range of brightness visible to the eye on that frigid evening, from the urban glow of the Quebec City skyline to the triple conjunction of Moon, Venus and Mars. Shortly after sunset the young Moon shows off its bright crescent next to brilliant Venus. Fainter Mars is near the top of the frame. Though details in the Moon's sunlit crescent are washed out, features on the dark, shadowed part of the lunar disk are remarkably clear. Still lacking city lights the lunar night is illuminated solely by earthshine, light reflected from the sunlit side of planet Earth.

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aildoux
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Re: APOD: Moon-Venus-Mars Skyline (2015 Feb 28)

Post by aildoux » Sat Feb 28, 2015 4:08 pm

Très beau !!!

Peter Hutchison

Re: APOD: Moon-Venus-Mars Skyline (2015 Feb 28)

Post by Peter Hutchison » Sat Feb 28, 2015 4:47 pm

This view of Quebec city faces southeast does it not? The moon could never be in this position..

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Chris Peterson
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Re: APOD: Moon-Venus-Mars Skyline (2015 Feb 28)

Post by Chris Peterson » Sat Feb 28, 2015 4:59 pm

Peter Hutchison wrote:This view of Quebec city faces southeast does it not? The moon could never be in this position..
Looks more like west or southwest to me.
Chris

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hoohaw

Re: APOD: Moon-Venus-Mars Skyline (2015 Feb 28)

Post by hoohaw » Sat Feb 28, 2015 6:33 pm

aildoux wrote:Très beau !!!
Trés beau!

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Joe Stieber
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Re: APOD: Moon-Venus-Mars Skyline (2015 Feb 28)

Post by Joe Stieber » Sat Feb 28, 2015 6:57 pm

Using Google maps, I found a spot on the southeastern shore of the St. Lawrence River that shows the buildings in much the same alignment as today's APOD. The viewing direction is just a bit south of west as shown here. Correspondingly, the Venus-Mars-Moon grouping was also a bit south of west that evening.

I'm somewhat surprised that the text mentions "the wide range of brightness" in this HDR (high dynamic range) image, "though details in the Moon's sunlit crescent are washed out." The sunlit crescent in my own single-frame, non-HDR image of this grouping is similarly washed out. My picture was taken (in New Jersey) at 6:25 pm EST, and since the moon in the APOD is a slightly higher with respect to Venus and Mars (a little more eastward), it must have been taken a short while later.

hoohaw

Re: APOD: Moon-Venus-Mars Skyline (2015 Feb 28)

Post by hoohaw » Sat Feb 28, 2015 9:38 pm

hoohaw wrote:
aildoux wrote:Très beau !!!
Trés beau!
Apologies, I was wrong!

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Re: APOD: Moon-Venus-Mars Skyline (2015 Feb 28)

Post by saturno2 » Sun Mar 01, 2015 1:58 am

In my area, on Feb 21, at 18:30 local time,
I saw the conjunction of Moon and Venus.
I did not see Mars, because the Moon
it was practically to eclipse to Mars.
Between the Moon and Venus had
an iridiscent cloud.