I had the same reaction.  I think the NASA page is simply mistaken.  

Either that or the image was edited to make it vertical.  

 

Jack Aubert

 

From: sundial <[email protected]> On Behalf Of Bill Gottesman
Sent: Sunday, September 23, 2018 10:59 AM
To: Robert Terwilliger <[email protected]>
Cc: Sundials List <[email protected]>
Subject: Re: Equinox Analemma

 

The NASA page says the photos were taken at 4PM, but it sure looks like they 
were taken at mean solar noon (because the analemma is vertical).  Does anyone 
have an explanation for this?

 

-Bill

 

On Sun, Sep 23, 2018 at 10:38 AM Robert Terwilliger <[email protected] 
<mailto:[email protected]> > wrote:

Astronomy Picture of the Day

 

https://apod.nasa.gov/apod/ap180923.html

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