Horse Head, Flame Nebulae and IC434

Object Information:

Horse Head Nebula, Flame Nebula and IC434

The Horsehead Nebula (also known as Barnard 33 ) is a dark nebula in the constellation Orion. The nebula is located just to the south of the star Alnitak, which is farthest east on Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex. The nebula was first recorded in 1888 by Scottishastronomer Williamina Fleming on photographic plate B2312 taken at theHarvard College Observatory. The Horsehead Nebula is approximately 1500light years from Earth. It is one of the most identifiable nebulae because of the shape of its swirling cloud of dark dust and gases, which bears some resemblance to a horse's head when viewed from Earth.

The Flame Nebula, designated as NGC 2024 and Sh2-277, is an emission nebula in the constellation Orion. It is about 900 to 1,500 light-years away. At the center of the Flame Nebula is a cluster of newly formed stars, 86% of which have circumstellar disks. X-rayobservations by the Chandra X-ray Observatory show several hundred young stars, out of an estimated population of 800 stars.

IC 434 is a bright emission nebula in the constellation Orion. It was discovered on February 1, 1786 by William Herschel. The Horsehead Nebula is a dark nebula silhouetted against it.

Image date:

January 17, 2016

Exposure Information:

2h30' exposure
Lights: 15x240" + 9x600" 400ISO
Darks: 8
Flats: 20
Bias: 50

Imaged at:
Prades, Tarragona. CATALUNYA - SPAIN
Equipment:

Optics - GSO- 200/1000 Newtonian f/5
Camera - Canon 450D moded (IR filter removed)
Mount - Sky-Watcher Neq6 PROII
Guiding scope – EZG 60/230
Guiding and planetary camera – ASI 174MC