It's cold and windy here in Indiana, but there's a faint
22° halo around the moon. As light passes through hexagonal ice prisms, no light leaves the prisms at an angle less than 22° making a distinct light/dark boundary with a radius of 22° radiating out from the moon.
This is only my second time seeing a lunar halo. I got much better photos compared to my
first attempt last winter.
![halo ring around the moon halo ring around the moon](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiLcNkA1I8SxQormetVCmN5jBOjtCj7nwgOuuV6db8AL2aH5rv3Qkj2KT7l9dUYifUYnyAbJIx3ZywxXhZ241HvAY2DBEIqwpkShglfLmPQf_iiN-sTHozQoLq2MdfjmaDz-9T9p170tZMu/s400/moon+halo+HDR.jpg) |
Instagram's HDR filter really brings out the contrast along the light boundary |
![ring around the moon ring around the moon](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg7lsRHw0EbCJ5_xxXjwMa7q1Cj4j9JYxiBvoo3Jr3R1-WyHwMHQIozm2sPtp0V7xrYnPXXdf0YdhvNJ7RsRwRwwxyQPAfCRgdsYqsvVy-58EZbtIApdiTWR0XpCouQvvuMdEI6Uy3IsHDR/s400/moonhalo2.jpg) |
Beefed up in Photoshop, the halo is still pretty faint |
![lunar halo lunar halo](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg0Nz_gpIWnHavela5wrp3-D6BefkN2J5dD2uEsU_lxgK6oMA3DQHIilQWtWljkanii_b0oeM-ux2qGFI3-GmMvpicLkH3SLS-6nP5uRkplf_5i6YHvgZ7A63Twdmf6vKeJATV30bu4ynVB/s400/moonhalo.jpg) |
This is a pretty good visual approximation of what was actually in the sky, very faint but definitely visible |
![ring around moon Indiana ring around moon Indiana](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhlHlIhUlxJL_2krWLy6UCSF3lHz3NjUSPzRrIY7j5NJ7CktW7Pq1E9bOQM9d7EcRNsde6-XxpS2nTyuCG8i0isGp3Blfwd52VQlcbooNDta86dy0jsBjtFsLJMf2qfM4ngOLQXjIAAnlF8/s400/moonhalo3.jpg) |
Another shot, auto contrast and color in Photoshop |
No comments:
Post a Comment