The Major Lunar Standstill - a real, visual representation скачать в хорошем качестве

The Major Lunar Standstill - a real, visual representation

The Major Lunar Standstill - a real, visual representation by Luca Vanzella: https://www.flickr.com/people/5385134... Alister Ling: https://www.flickr.com/people/9977523... This video shows thirteen moonrise and thirteen sunrise images from June 2024 to June 2025, to visually depict the change in moonrise/sunrise position over a year and to illustrate that the greatest northern and southern positions of the Moon extend beyond those of the Sun during a Major Lunar Standstill (https://griffithobservatory.org/extre.... Short Story Celebrating the northeastern and southeastern extremes of sunrise points (solstices) are familiar experiences to all casual skywatchers but the moonrise extremes (lunistices) mostly go unnoticed except to attentive observers. As the Moon’s orbit slowly regresses in an 18.6 year cycle, the span of moonrise points varies between two extremes: the minor and major lunar standstills. In a major lunar standstill, the extreme moonrise points are several degrees farther north and south than the sunrise ones. Inspired by an earlier project (   • A Year of Sunrises  ) of creating a time slice of sunrises, we wanted to capture these events photographically in a manner both educationally and visually compelling. Technically the Major Lunar Standstill is a point in time on the dates of the extreme north and south lunar declinations, both occurring in March 2025, but similar to solstices, it is best appreciated in the context of a period of observation. Any consistent phase would reveal the pattern, but a full Moon is the most eye-catching and stands out best in very wide images. The period from the June 2024 solstice to the June 2025 solstice nicely surrounds the standstill, so we shot thirteen full moonrises and thirteen sunrises to represent the Major Lunar Standstill with a vertical time slice composite image and this video. Longer Story and High Resolution Image A longer version of the story, along with a high resolution version of the final composite image is here on Flickr: https://www.flickr.com/photos/5385134... Image Acquisition Camera: T3i / Canon 60D Lens: Canon EF-S 10-18mm @ 10mm Settings: ISO 200, Daylight WB, f/4.5 Sunrises: 3x1EV bracket, e.g.: 1/125, 1/250, 1/500 sec Moonrises: 6x2EV bracket, e.g.: 2, 1/2, 1/8, 1/30, 1/125, 1/500 sec Event Data Here's the essential data from the 26 events. Each sunrise was planned to capture the Sun about 0.5° above the horizon, while each moonrise was planned to capture the Moon about 2.5° above the horizon. Target Moonrise Moon D | Sunrise Sun D Date Actual Az Az | Actual Az Az 2024 06 21 2024 06 21 151.2 0.0 | 2022 06 19 46.6 -0.1 2024 07 21 2024 07 21 134.5 0.0 | 2022 07 21 52.7 0.2 2024 08 19 2022 08 12 118.5 1.1 | 2022 08 19 67.2 0.2 2024 09 17 2022 09 10 101.8 2.6 | 2022 09 17 85.3 0.4 2024 10 17 2024 10 17 69.5 0.0 | 2022 10 17 104.8 0.3 2024 11 15 2023 11 26 54.8 0.1 | 2022 11 14 120.6 0.8 2024 12 15 2023 11 28 44.9 1.4 | 2022 12 13 130.0 0.3 2025 01 13 2025 01 13 49.1 0.0 | 2022 01 16 125.4 1.0 2025 02 12 2025 02 17 71.1 0.0 | 2022 02 11 112.6 -0.7 2025 03 14 2023 04 05 101.6 3.8 | 2022 03 16 91.6 1.2 2025 04 12 2025 04 12 115.7 1.0 | 2022 04 11 74.6 -0.8 2025 05 12 2022 07 13 142.7 3.0 | 2022 05 12 57.0 -0.1 2025 06 11 2024 05 25 151.0 0.0 | 2022 06 12 47.1 0.1 Moon Az = Moonrise Azimuth D Az = Delta from Target Moon Az (degrees)