Hello everyone,
Let me introduce you to a great Steemian and contributor to my daily 200 SBD 7 World's Continents Photo Challenge, an amazing photographer @intrepidphotos. Let's give him some recognition and a shout out. In combination with the color challenge, it is a great place to highlight his photo skills and give his hard work some extended publicity and appreciation.
For today's color challenge I picked his entry below:
A rare 'blood' Aurora fills the sky across the Northern Rockies. Red or ‘blood' aurora’s are created by oxygen atoms at an altitude of between 200–500 km (120-300miles) colliding in a high energy state and emitting red light at 630 nm. In contrast the more common green aurora are oxygen atoms at a lower altitude of 70-200km (40-120 miles) and lower energy state emitting light at 557.7 nm. In most cases to see a red aurora you need an extremely dark sky and to be looking from a lower latitude across the top layers of a distant high latitude aurora.
Click on the image for a larger view
To give @intrepidphotos a little support, I am upvoting his post: Iguazu River. Feel free to join me.
Please feel free to check out some of my other recent posts.
Travel Tip: Sychrov Chateau, stunning example of Gothic Revival architecture
ColorChallenge - Indigo Saturday - @nenio in 7 World's Continents Photo Challenge!
Tomas
CEO & Founder of CGH
