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NGC 1579: Trifid of the North (2016) | by Oleg Bryzgalov
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NGC 1579: Trifid of the North (2016)

Explanation: Colorful NGC 1579 resembles the better known Trifid Nebula, but lies much farther north in planet Earth's sky, in the heroic constellation Perseus. About 2,100 light-years away and 3 light-years across, NGC 1579 is, like the Trifid, a study in contrasting blue and red colors, with dark dust lanes prominent in the nebula's central regions. In both, dust reflects starlight to produce beautiful blue reflection nebulae. But unlike the Trifid, in NGC 1579 the reddish glow is not emission from clouds of glowing hydrogen gas excited by ultraviolet light from a nearby hot star. Instead, the dust in NGC 1579 drastically diminishes, reddens, and scatters the light from an embedded, extremely young, massive star, itself a strong emitter of the characteristic red hydrogen alpha light. (text:


This picture was photographed during November 2016 in Rozhen observatory, Bulgaria.


Equipment: home assembled reflector 10 in., f/3.8


Mount WhiteSwan-180 with a control system «Eqdrive Standart», camera QSI-583wsg, Televue Paracorr-2. Off-axis guidecamera QHY5L-II.


LRGB filter set Astrodon gen. II.


L = 18 * 900 seconds, RGB = 9* 900 seconds, unbinned^ about 11 hours total.


FWHM source in L filter 2.26"-3.14", sum in L channel - 2.70"


The height above the horizon from 56° to 83°, the scale of 1"/ pixel.


Processed Pixinsight 1.8 and Photoshop CS6

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Taken on November 1, 2016