Kiischpelt’s Solar Circle in Kiischpelt, Luxembourg

This modest monument marks the only point of intersection between longitude and latitude in the Grand Duchy of Luxembourg.#geographicmarkers #plaques #sundials #section-Atlas
Kiischpelt’s Solar Circle

@KanaMauna @coreyspowell It might be possible to design #sundials that would give you both the time of day relative to the axial rotation of the planet *and* a calendar date relative to the orbital motion of the two stars.

Ha! Daylight Saving Time snuck up on me. I thought it was Europe that went first but I had that backwards.

The time change suddenly shifts the transit of the sun to 1:23 pm here in Minneapolis.

That's hardly "High Noon" now, is it?

Sunday

Begin Twilight 7:07 AM

☉ Sunrise 7:36 AM
☉ Transit 1:23 PM
☉ Sunset 7:12 PM

End Twilight 7:41 PM

"Count only the Sunny Days."
—sundial at the Rose Garden, Minneapolis

#Minneapolis #DST #sundials

The Sunwheel in Hadley, Massachusetts

Each solstice, students and astronomy enthusiasts gather at a primitive but functioning sun wheel to witness how humanity first used this calendar.#solstice #sun #calendars #sundials #section-Atlas
The Sunwheel

You won't find a #sundial as easy to make as this one.
Print, cut along the red line, fold along the dashed lines. Place along the north-south local meridian. Et voilà!

Pick your own latitude (30-60) in the pdf here:

https://www.astrolabe-science.fr/cadran-solaire-horizontal-a-replier/
#astronomy #sundials

The history of time-keeping is a testament to humanity’s endless curiosity and creativity. From ancient sundials to atomic precision and GPS synchronization, it’s an inspiring story of progress. What excites you most about the future of time-keeping? #HistoryOfTime #TimekeepingInnovation #AncientTimekeeping #Sundials #GMT

https://medium.com/@sanjay.mohindroo66/the-history-of-time-keepingthe-history-of-time-keeping-a-journey-through-innovation-and-precision-fc69c7972874

Bienvenue à @gnomonique sur ce réseau ! Suivez ce compte si vous êtes intéressé.es par les cadrans solaires, et pour vous tenir au courant des actualités du magazine « Cadrans solaires pour tous ».
Roger a conçu un mooc accessible à tous.tes sur ce sujet : www.cadrans-solaires.info
#astronomie #astronomy #sundials

Mapas estadísticos 2024 📊
Nº total de #relojesdesol en #Galicia: 3️⃣3️⃣0️⃣4️⃣

Nº de relojes de sol por provincias:
https://datawrapper.dwcdn.net/Oa22s
Nº de relojes de sol por comarcas:
https://datawrapper.dwcdn.net/2O531
Nº de relojes de sol por concellos:
https://datawrapper.dwcdn.net/1Rl38

#estadísticas #estatísticas #statistics #institutogalegodeestatística #relojesdesol #rellotgesdesol #eguzkierlojuak #relógiosdesol #sundials

Meridian Line of Basilica di San Petronio in Bologna, Italy

A massive line that stretches across the floor of Bologna’s largest church was created by a 17th-century scientist to measure the movements of the Sun.#scienc #light #cameraobscura #instrumentsofscience #astronomy #basilicas #churches #sundials #sun #section-Atlas
Meridian Line of Basilica di San Petronio