The light pollution at the farm has gotten noticeably worse since I last imaged there, but it’s still far darker than in town. Unforunately it also has very very tall floodlights for the softball diamonds that would be in any view of the sky I wanted - even once the lights were off for the night, they made the area a poor choice, so I headed back to the farm southwest of town where I typically image. Initially I was going to image from a new location, Rock Run Youth Park, which is East of town and looks to have very dark skies. Reds from pockets of glowing hot gas giving off HA light add to the mix of color in the region. Several bright stars light up the dust blue in some areas, while in others the dust is so thick no light makes it through, and in others it’s a dusky brown. It’s a fascinating bit of space, dark clouds of dust obscure the region. Happy to finally have another chance at the region, I decided to focus on the reflection nebula IC 4603. "Hole in Space Found by Orbiting Telescope". Media related to NGC 1999 at Wikimedia Commons."Hubble Space Telescope Observations of Proper Motions in Herbig-Haro Objects 1 and 2". ^ Bally, John Heathcote, Steve Reipurth, Bo Morse, Jon Hartigan, Patrick Schwartz, Richard (May 2002).^ "Fast Facts: Hubble Takes a Close-up View of a Reflection Nebula in Orion"."Hier ist wahrhaftig ein Loch im Himmel". C Neufeld, D Osorio, M Pontoppidan, K Poteet, C. J Furlan, E Hartmann, L Henning, T Manoj, P Maret, S Muzerolle, J Myers, P. T Krause, O Linz, H Allen, L Bergin, E Calvet, N Di Francesco, J Fischer, W. ^ "Telescope discovers surprising hole in space".HH 1/2, the first recognized Herbig-Haro Object, is located near NGC 1999. It is located 1,500 light-years away from Earth in the constellation Orion. Researchers believe this discovery should lead to a better understanding of the entire star forming process. The exact cause of this phenomenon is still being investigated, although it has been hypothesized that narrow jets of gas from some of the young stars in the region punctured the sheet of dust and gas, as well as, powerful radiation from a nearby mature star may have helped to create the hole. With support from ground-based observations done using the submillimeter bolometer cameras on the Atacama Pathfinder Experiment radio telescope (November 29, 2009) and the Mayall (Kitt Peak) and Magellan telescopes (December 4, 2009), it was determined that the patch looks black not because it is an extremely dense pocket of gas, but because it is truly empty. This led to the belief that either the cloud material was immensely dense or that an unexplained phenomenon had been detected. Analysis of this patch by the infrared telescope Herschel (October 9, 2009), which has the capability of penetrating such dense cloud material, resulted in continued black space. It was previously believed that the black patch was a dense cloud of dust and gas which blocked light that would normally pass through, called a dark nebula. It is a reflection nebula, and shines from the light of the variable star V380 Orionis. NGC 1999 is a dust-filled bright nebula with a vast hole of empty space represented by a black patch of sky, as can be seen in the photograph. The overall nebula with smaller hole shown in context
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