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    Re: Crescent Moon over 42nd Street NYC
    From: Frank Reed
    Date: 2022 Apr 10, 08:24 -0700

    Geoffrey: Thanks. That's great.

    I would bet that it's the same photographer since the image has the same composition and was surely taken from the same spot in New Jersey. Also, I can confirm the date and time claimed on the image. The Moon's orientation (line through the horns), phase, and exact position match the photo quite well in the early morning hours of March 11, 2018 less than an hour after the "spring ahead" to Daylight Time four years ago. If it's not the same photographer, then one of these photographers was probably inspired by the other. I don't know which one came first yet.

    In order for the Moon to be aligned along azimuth 119° (I'm measuring a degree less than you, David P.) at an altitude of 1.0-1.3° from latitude 40.77°, its dec must be close to -20.5°. Given the phase (which is only approximate in a photo like this), the elongation of the Moon from the Sun has to be about 50°. So it should be straight-forward to find the date and time. Given the rapid and non-repeating motion of the Moon, if we limit the time to the past ten years, I would guess there are at most two or three potential dates/times that will match the photo. I see one more non-astronomical clue in the photo (the original): there appear to be "snowflake" decorations along the street on the right side in the foreground. It's not much to go on, but it suggests winter. The astronomy also implies winter --maybe January. 

    Frank Reed

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