#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.
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.
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.
If we get some clear nights in soon, Comet 13P Olbers is a nice target for smaller telescopes as it could be near +7th magnitude when it reaches its closest point to the sun (perihelion) on June 30th. The comet has been making the 69-year circuit for millions of years with an orbit that takes it way past the orbit of Neptune. It should be easier to find on July 5th when it passes near the +4th magnitude star 10 Ursae Majoris.
https://www.universetoday.com/166998/catching-comet-13p-olbers-this-summer/
#Comet #13P #Olbers #Telescope #universetoday #Neptune #perihelion #WestportObservatory #WestportCT #WestportAstronomicalSociety
Knowledge Zone
Dr. John Barentine FRAS
Westport Observatory
Universität Bremen
Astronomiemuseum
Grégoire Pomey