Astrodoc: Astrophotography by Ron Brecher https://astrodoc.ca/ Astrodoc.ca - Images of the Universe Sun, 12 Apr 2026 18:09:07 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 NGC 4244 https://astrodoc.ca/ngc-4244/ https://astrodoc.ca/ngc-4244/#comments Sun, 12 Apr 2026 18:09:07 +0000 https://astrodoc.ca/?p=14687 NGC 4244, The Silver Needle Galaxy Click image for full size version   Apil 12, 2026 NGC 4244 is a loose edge-on spiral galaxy. It is also catalogued as Caldwell 26 and nickanamed the Silver Needle Galaxy. It lies a little more than 14 million light years away from us in the constellation of Canes [...]

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]]> https://astrodoc.ca/ngc-4244/feed/ 2 M81 https://astrodoc.ca/m81/ https://astrodoc.ca/m81/#respond Sun, 05 Apr 2026 15:49:55 +0000 https://astrodoc.ca/?p=14678 M81, Bode's Galaxy Click image for full size version   Apil 5, 2026 M81 is a large spiral galaxy in Ursa Major. It is also known as Bode's Galaxy and NGC 3031. It's about 12 million light years from us, and about a million light years away from M82, the Cigar Galaxy. They make a [...]

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]]> https://astrodoc.ca/m81/feed/ 0 M1 – The Crab Nebula in Four Colour Palettes https://astrodoc.ca/m1/ https://astrodoc.ca/m1/#comments Wed, 18 Mar 2026 15:28:47 +0000 https://astrodoc.ca/?p=14659 M1 - The Crab Nebula in Four Colour Palettes Foraxx Palette RGB Enhanced with SHO Hubble Palette Modified Hubble Palette Click image for full size version March 18, 2026 M1, the Crab Nebula, is a remnant of a supernova caused by the explosion of a massive star [...]

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]]> https://astrodoc.ca/m1/feed/ 1 NGC 2359 – Thor’s Helmet https://astrodoc.ca/ngc-2359/ https://astrodoc.ca/ngc-2359/#comments Sat, 14 Mar 2026 08:20:26 +0000 http://astrodoc.ca/?p=11403 NGC 2359 - Thor's Helmet Foraxx Palette RGB with SHO Enhancement Hubble Palette Modified Hubble Palette Click image for full size version March 14, 2026 NGC 2359 is also known as Thor's Helmet (also catalogued as IC 468, Sh2-298, and Gum 4) and is an emission nebula [...]

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]]> https://astrodoc.ca/ngc-2359/feed/ 2 Orion’s Sword https://astrodoc.ca/m42/ https://astrodoc.ca/m42/#respond Sun, 22 Feb 2026 19:11:43 +0000 https://astrodoc.ca/?p=14625 Orion's  Sword  Click image for full size version February 22, 2026 Orion's Sword might be my favourite single star field in the sky, but I could probably say that about a dozen other objects. There's a lot going on in this field. The largest object in the image is the Orion Nebula, also known as [...]

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]]> https://astrodoc.ca/m42/feed/ 0 Sh2-106 https://astrodoc.ca/sh2-106/ https://astrodoc.ca/sh2-106/#comments Tue, 10 Feb 2026 20:34:22 +0000 https://astrodoc.ca/?p=14604 Sh2-106 Click image for full size version February 10, 2026 Sh2-106 is a bipolar emission nebula and star-forming region in Cygnus, about 2,000 light years away. A star at the centre with a mass 15 times the Sun's is blowing out the two lobes. That star is also causing the surrounding gases to glow. Sh2-106 [...]

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]]> https://astrodoc.ca/sh2-106/feed/ 2 Cas-A https://astrodoc.ca/cas-a/ https://astrodoc.ca/cas-a/#respond Wed, 04 Feb 2026 00:29:20 +0000 https://astrodoc.ca/?p=14589 Cas A Supernova Remnant Click image for full size version February 3, 2026 Cassiopeia A (Cas A) is a supernova remnant in the northern constellation of Cassiopeia. It seems to be rarely imaged by amateurs. It is about 11,000 light years from us, and 10 light years across. The teal hues in the image come [...]

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]]> https://astrodoc.ca/cas-a/feed/ 0 B150 https://astrodoc.ca/b-150/ https://astrodoc.ca/b-150/#comments Mon, 26 Jan 2026 06:30:05 +0000 https://astrodoc.ca/?p=12898 B150 Click image for full size version January 26, 2026 Barnard 150 (B150) is a dark nebula in the constellation Cepheus. It is about one degree long (about two Moon widths). It's sometimes referred to as the Seahorse nebula. It is made up of soot and dust within our galaxy. It appears dark because it [...]

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]]> https://astrodoc.ca/b-150/feed/ 3 Sh2-140 https://astrodoc.ca/sh2-140/ https://astrodoc.ca/sh2-140/#respond Thu, 15 Jan 2026 16:34:08 +0000 https://astrodoc.ca/?p=14564 Sh2-140 Click image for full size version January 15, 2025 Sh2-140 is a fairly large emission nebula in Cepheus. I thought this would be an excellent target for the Sky-Watcher Esprit 120 that I have been using.  This emission nebula lies about 3000 light years from Earth. The glowing gas is mostly hydrogen, which emits [...]

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]]> https://astrodoc.ca/sh2-140/feed/ 0 Rosette Nebula in HaRGB https://astrodoc.ca/rosette-nebula/ https://astrodoc.ca/rosette-nebula/#respond Fri, 26 Dec 2025 06:17:52 +0000 https://astrodoc.ca/?p=12639 Rosette Nebula in HaRGB Click image for full size version December 26, 2025 This gorgeous donut is the Rosette Nebula.  It's very large and diffuse, and contains open cluster NGC 2244, which is in the darker centre of the nebula. The Rosette lies about 5,200 light years away in the constellation Monoceros, and is about [...]

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