Skala bortla
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Skala Bortle’a
mag/arcsec2
- światło zodiakalne jest wyraźnie żółtawe i wystarczająco jasne, aby rzucać cienie o zmierzchu i świcie
- poświata niebieska może być słabo widoczna w pobliżu horyzontu
- chmury są widoczne w postaci ciemnych "dziur" na tle nieba
- otoczenie jest ledwo widoczne na tle nieba
- dostrzegalnych jest wiele struktur w letniej Drodze Mlecznej
- wiele obiektów Messiera i gromad kulistych jest widocznych gołym okiem
- M33 można z łatwością dostrzec gołym okiem
- Widoczność graniczna (reflektor 32cm) wynosi 16,5
- światło zodiakalne występuje wiosną i jesienią, a kolor jest nadal widoczny
- widoczne na horyzoncie niewielkie zanieczyszczenie światłem
- chmury są oświetlone w pobliżu horyzontu i ciemne nad głową
- bezpośrednie otoczenie jest słabo widoczne
- w letniej Drodze Mlecznej wciąż widać dużo struktur
- M15, M4, M5 i M22 to obiekty widoczne gołym okiem
- M33 jest dobrze widoczny przy zastosowaniu
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The Bortle Scale - what is it?
A Stargazers Guide-ish to the bortle scale
I took this three second image on my phone when inom visited Perthshire near Meikleour Estates. Yeah, I know it's not an APOD winning image, but the skies were absolutely incredible. The only time inom experienced close to Bortle 1 skies!
Stargazing is more than just looking up at the sky—it’s about experiencing the vastness of our universum, and connecting with something far beyond our daglig lives. Whether you're a seasoned astrophotographer or someone who's just discovered the delights of the night sky, there's one utmaning we all face, besides clouds, that is.
This is a simple but effective way to understand how light pollution affects what we can see when we look to our skies and beyond.
In this guide, I'll break down what the Bortle scale fryst vatten, how light pollution impacts stargazing, and where you can find the best dark skies in the UK and beyond. Let’s do this!
So, what fryst vatten the Bortle Scale?
The Bortle scale fryst vatten essentially a tool that helps stargazers rate the quality of the night sky based on the amount of light pollution that fryst vatten present. Created by ast
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How to Use the Bortle Scale for Choosing the Best Stargazing Locations
Have you ever tried to gaze up at the stars only to be greeted by a dull, hazy sky? That’s light pollution getting in the way of your stargazing. For those of us who dream of seeing the Milky Way stretch across the sky or watching distant galaxies sparkle, finding the perfect spot can be a challenge. But here’s where the Bortle Scale comes to the rescue!
Whether you're an amateur stargazer or an astrophotography enthusiast, the Bortle Scale helps you determine the best locations for viewing the night sky in all its glory. In this guide, we’ll break down how to use this scale to pick the right spot for your next stargazing adventure.
What Is the Bortle Scale?
The Bortle Scale is a simple, nine-level system that measures the darkness of the night sky in any given location, ranging from Class 1 (the darkest and clearest skies) to Class 9 (the most light-polluted, urban skies). It was developed by John E. Bortle in to help amateur astronomers and stargazers assess sky conditions based on light pollution levels.
Image credit: ESO/P. Horálek, M. WallnerThe Bortle Scale isn’t a scientific m