Explanation: Interstellar dust clouds and bright nebulae abound in the fertile constellation of Orion. One of the brightest, M78, on center in this colorful telescopic view, covering an area north of Orion's belt. At a distance of about 1,500 light-years, the bluish nebula itself is about 5 light-years across. Its blue tint is due to dust preferentially reflecting the blue light of hot, young stars in the region. Dark dust lanes and other nebulae can easily be traced through this gorgeous skyscape. The scene also includes the remarkable McNeil's Nebula -- a newly recognized nebula associated with the formation of a sun-like star, and the telltale reddish glow of many Herbig- Haro objects, energetic jets from stars in the process of formation. (text: apod.nasa.gov/apod/ap131010.html)
This picture was photographed on November 4-6, 2013 in the Crimea, Ukraine. (height of 600 m. above sea level)
Equipment: home assembled reflector 10" f/3.8, mount WhiteSwan-180, camera QSI-583wsg, Tevevue Paracorr-2. Off-axis guidecamera QHY5L-II.
LRGB filter set Baader Planetarium.
L: 17x450 sec., RGB: 8*600 sec. each filter, unbinned
6 hours total.
FWHM 2.69"-3.11" , sum in L channel - 2.94"
Processed Pixinsight 1.8, Fitstacker and Photoshop CS6.
Photo with labels: olegbr.astroclub.kiev.ua/files/astrofoto/M78/M78_LRGB_Ole...
