"The Solar Eclipse Analemma Project" is #NASA #astronomy Picture of the Day #APOD - A clever composite photo of positions of the Sun in the sky from near Stephenville, Texas over a year between March #Equinox of 2024 (a year ago) & 2025 (today). For the April 8, 2024 image of the Sun, it shows #SolarEclipse2024 at totality as seen from that location. https://apod.nasa.gov/apod/ap250320.html

NASA Astronomy Picture of the Day (APOD) for 2025-03-20 "The Solar Eclipse Analemma Project" https://apod.nasa.gov/apod/ap250320.html

NASA's photo caption:
Recorded from 2024 March 10, to 2025 March 1, this composited series of images reveals a pattern in the seasonal drift of the Sun's daily motion through planet Earth's sky. Known to some as an analemma, the figure-eight curve was captured in exposures taken on the indicated dates only at 18:38 UTC from the exact same location south of Stephenville, Texas. The Sun's position on the 2024 solstice dates of June 20 and December 21 would be at the top and bottom of the curve and correspond to the astronomical beginning of summer and winter in the north. Points that lie along the curve half-way between the solstices would mark the equinoxes. The 2024 equinox on September 22, and in 2025 the equinox on March 20 (today) are the start of northern fall and spring. And since one of the exposures was made on 2024 April 8 from the Stephenville location at 18:38:40 UTC, this analemma project also reveals the solar corona in planet Earth's sky during a total solar eclipse.

**Astro Hawk (Ian Kluft)** @AstroHawk@spacey.space · 4d

Astro Hawk (Ian Kluft) @AstroHawk@spacey.space

Happy March #Equinox! Today the northern and southern hemispheres are equally illuminated by the Sun. Though it would not be correct to say the day and night are equal, since the Sun's huge size offers extra daylight at sunrise and sunset beyond where its center lines up with the horizon. So begins Spring in the north and Autumn in the south. https://en.wikipedia.org/wiki/Equinox #astronomy #weather

en.wikipedia.orgEquinox - Wikipedia

**Bob the Traveler** @bobthetraveler@mastodon.world · 4d

Bob the Traveler @bobthetraveler@mastodon.world

Today is the #Equinox, sunset is your last opportunity to align your #megaliths https://cromwell-intl.com/travel/uk/stonehenge/?s=mb

Bob's Pages of Travel, Linux, Cybersecurity, and MoreVisiting StonehengeA visit to Stonehenge, the great megalithic monument in southern Britain. The earliest construction started around 8000 BC with a ring of posts. Larger monuments were started around 4000 BC.

**Bob the Traveler** @bobthetraveler@mastodon.world · 4d

Bob the Traveler @bobthetraveler@mastodon.world

Today is the #Equinox, it's time to align your #megaliths! https://cromwell-intl.com/travel/france/provence-megaliths/?s=mb

Bob's Pages of Travel, Linux, Cybersecurity, and MoreDolmen de la Pitchoune — A Megalithic Dolmen structure in ProvenceDolmen de la Pitchoune is a megalithic dolmen structure in Provence, in southern France near the village of Ménerbes where Peter Mayles once lived.

**The Public Domain Review** @publicdomainrev@mastodon.social · 4d

The Public Domain Review @publicdomainrev@mastodon.social

Spring has officially sprung. But #equinox aside, how do we tell the season is here? Hugh Aldersey-Williams looks at Robert Marsham’s Indications of Spring (1789), a lifelong calendrical project by Britain’s first phenologist — https://publicdomainreview.org/essay/from-snowdrop-to-nightjar/

The Public Domain ReviewFrom Snowdrop to Nightjar: Robert Marsham’s “Indications of Spring” (1789)What can we learn from observing the progression of spring — a hawthorn’s first flowering, the return of birdsong on a particular day? Hugh Aldersey-Williams explores the lifelong calendrical project of Robert Marsham, the Norfolk naturalist considered Britain's first phenologist.

**SerFinchalot** @SerFinchalot@mastodon.world · 4d

SerFinchalot @SerFinchalot@mastodon.world

Today we celebrate the Spring Equinox.

Looking forward to ushering in warmer and longer days and many hours in the garden with the doggo.

Photograph of a collie like dog’s lower jaw, showing her teeth and making a silly face

#Spring #SpringEquinox #Equinox

**Bob the Traveler** @bobthetraveler@mastodon.world · 4d

Bob the Traveler @bobthetraveler@mastodon.world

Today is the #Equinox, it's time to align your #megaliths! https://cromwell-intl.com/travel/france/saumur-megaliths/?s=mb

Bob's Pages of Travel, Linux, Cybersecurity, and MoreMegaliths in the Lower Loire Valley of France near SaumurMegalithic structures in the lower Loire Valley in western France near Saumur and Gennes date back to 3000-1200 BE in the Neolithic age.

**Bob the Traveler** @bobthetraveler@mastodon.world · 4d

Bob the Traveler @bobthetraveler@mastodon.world

Have you aligned your #megaliths? Today is the #Equinox, you have another opportunity at sunset. https://cromwell-intl.com/travel/uk/avebury/?s=mb

Bob's Pages of Travel, Linux, Cybersecurity, and MoreAvebury and its MegalithsA detailed visit to the great Neolithic stone circle at Avebury, older than Stonehenge. Also the nearby Silbury Hill, West Kennet Long Barrow, and other tumuli and megaliths.

**MittenGirlPeach ️** @MittenGirlPeach@mastodon.social · 4d

MittenGirlPeach ️ @MittenGirlPeach@mastodon.social

Mark isn’t meeting Dave in Chelsea #today for their weekly beers (martini dinner later for Dave) so he’s home to watch basketball alllll day with me. Woot. Maybe he’ll pick us up Chinese later. In the meantime I’m having another ️ and eyeing my stack of books. It’s sodden and spitting snow outside, but it was 70 yesterday and it will be 54 tomorrow, and we can use the moisture. Happy first day of spring, everyone! #equinox #Spring #March2025