Total Solar Eclipse of 1869 was a pivotal moment in the devlopment of American "physical astronomy" (now astrophysics). Thank you, Rebecca Charbonneau for your elequont summary of the article I recently published with Tom Hockey.
https://ww2.aip.org/history/the-total-solar-eclipse-of-1869-and-american-astrophysics
#astronomy #astrophysics #histsci #spectroscopy #solareclipse #Navy #USNO
The USNO Telephone Time is not working this morning.
Did someone forget to pay the phone bill?
202-762-1401 <--- Doesn't answer
202-762-1069 <-- Phone system acts like the number has been disconnected, "Call did not go through"
719-567-6742 <-- number doesn't answer, either
𝗪𝗜𝗞𝗜𝗣𝗘𝗗𝗜𝗔 𝗣𝗜𝗖𝗧𝗨𝗥𝗘 𝗢𝗙 𝗧𝗛𝗘 𝗗𝗔𝗬
✧ Charon ✧
Charon is the largest of the five known natural satellites of the dwarf planet Pluto. It has a mean radius of 606 kilometres (377 mi), making it the sixth-largest known trans-Neptunian object after Pluto, Eris, Haumea, Makemake, and Gonggong. With half the radius and one-eighth the mass of Pluto, Charon is a very large moon in comparison...
#Pluto #USNOFlagstaffStation #Charon #USNO #Gonggong #Wikipedia
https://en.wikipedia.org/wiki/Charon_(moon)
