Daily Archives: November 21, 2014

Horsehead Nebula

21 ноября

The Horsehead Nebula (also known as Barnard 33 in emission nebula IC 434) is a dark nebula in the constellation Orion.[1] 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 Scottish astronomer Williamina Fleming on photographic plate B2312 taken at the Harvard College Observatory. The Horsehead Nebula is approximately 1500 light 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 ahorse’s head when viewed from Earth.

Imaging telescopes or lenses: William Optics Zenithstar ED 70 William Optics
Imaging cameras: Canon EOS 400D mod.Baader
Mounts: Skywatcher EQ-3 – 2
Focal reducers: TV 0,8x
Software: Gimp, DSS, Fitswork
Filters: Baader Ha OIII SII Halpha
Resolution: 848×594
Dates: Oct. 30, 2014
Frames: 1×300″
Integration: 0.1 hours
Avg. Moon age: 6.19 days
Avg. Moon phase: 37.43%
RA center: 85.068 degrees
DEC center: -2.329 degrees
Pixel scale: 11.093 arcsec/pixel
Orientation: 168.055 degrees
Field radius: 1.595 degrees

Аuthor: MarcinSn

Аstrophotography of the day of SPONLI, 21.11.2014