#olbers — Public Fediverse posts

#Olbers' #Paradox is a cosmological paradox that explains why the night sky is dark, even though it seems like it should be bright.

https://knowledgezone.co.in/posts/Why-is-Sky-blue-66162fd236205b095a1d82a1

#PhotoOfTheDay: #Comet #Olbers over Kunetice Castle

The Halley-type comet is recorded here sweeping through northern summer night skies over historic Kunetice Castle, Czech Republic. Along with a broad dust tail, and brighter coma, this comet's long ion tail buffeted by storms and winds from the Sun, is revealed in the composite of tracked exposures for comet and sky.

https://apod.nasa.gov/apod/ap240801.html

A wider view of the G layer of the same image in grayscale to show the #Starlink trails near the #comet. This part of the sky is SWARMING with them in twilight. For the foreseeable future, all sub frames of comets in twilight will probably look like this.

#Comet13P #Olbers #Astronomy #Satellites

Another view of #Comet 13P/ #Olbers tonight in late twilight just before clouds rolled in. This is a stack of 23×3.2 s DLSR + 250mm lens images registered/combined in Siril and further edited in GIMP. No tracking mount, so this was about as long as I could make the subs without bad trailing.

#Astronomy

I spotted Comet #Olbers last night, which is remarkable in that the early evening sky was clear (uncommon here in summer). Here's a so-so image obtained in not-great. Just a little hint of green, not like the strong C2 Swan band emissions we have seen in other recent comets.

„Bremer auf der Weltbühne: #Olbers, #Treviranus, #Roth und die wissenschaftliche Blüte der Handelsstadt um 1800“ sind das Thema des #Wissenum11 Vortrags von Dr. Maria Hermes-Wladarsch, Kulturhistorikerin und Leiterin des Referats für Historische Sammlungen, Handschriften und Rara in der Staats- und Universitätsbibliothek Bremen. Er findet am Samstag, den 27. Januar im Haus der Wissenschaft #Bremen statt, der Eintritt ist frei. https://www.hausderwissenschaft.de/Bremer-auf-der-Weltbuehne-Olbers-Treviranus-Roth-und-die-wissenschaftliche-Bluete-der-Handelsstadt-um-1800.html

Heute (11.10.2023) vor...
...265 Jahren wurde Heinrich Wilhelm Matthias #Olbers geboren
...55 Jahren Start von #Apollo 7 und war der erste bemannte Raumflug im Rahmen des ApolloProgramms
Mehr https://astronomiemuseum.de/heute-vor
#Astronomiemuseum