#oxygenIII
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mrjfuk.bsky.social
M42, Orion Nebula. I'm currently working on this to increase detail and maintain the core. So far this is 17 hours of SulphurII, OxygenIII and HydrogenAlpha filters. Taken on my 180mm F7 Refractor sitting in Spain. Processed in Pixinsight.
#astronomy #astrophotography #nebula #photography
January 19, 2025 at 8:31 AM
mrjfuk.bsky.social
Veil Nebula 2 panel mosaic.
This is a supernova remnant 2400 light years away.
The image was taken over 12 nights. Its a total of 880 x 5 minute exposures = 73 hours, across two panels using SulphurII, HydrogenAlpha and OxygenIII filters on a 130mm Refractor. Processed (processing!) in PixInsight.
January 25, 2025 at 10:30 AM
ibguthrie.bsky.social
Some targets are very dim, sending very little light our way to catch in a small hole at the end of our #telescope. The Oxygeniii light that I captured to generate most of the large blue bits in the #BatAndSquid Nebula took 16 hours alone. #LAAS #Astrophotography #Astro #Astrophoto #Space #Sky
Captured across three nights in Joshua Tree, Cottonwood and Amboy Crater in California. RedCat51, asi2600mmPro, AM5, ASIAir, Antlia 3nm HydrogenAlpha, Oxygeniii, and RGB filters. This is what a 5 minute exposure of this same area of space looks like with the Oxygeniii filter on. This is what is used to generate the Blue tones in the resulting image. If you look closely you can see the 'Squid' shape.
January 27, 2025 at 11:04 PM
drebo99.bsky.social
Pacman Nebula

#PacManNebula #NGC281 #emissionnebula #hydrogenalpha #halpha #oxygenIII #sulfurII #narrowband #HSO #Hubble #nightphotography #astrophotography #astro #space #deepspace #deepsky #deepspacephotography #universe #longexposure #nightsky #celestron #ZWOASI #astrophoto #astroimaging
SHO SHO starless
December 17, 2024 at 11:36 AM
drebo99.bsky.social
The Crescent Nebula

#CrescentNebula #NGC6888 #emissionnebula #hydrogenalpha #halpha #oxygenIII #narrowband #HOO #nightphotography #astrophotography #astro #space #deepspace #deepsky #deepspacephotography #universe #longexposure #nightsky #celestron #ZWOASI

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I was shocked when I first looked at the data—a reaction perfectly suited to this target. The Crescent Nebula's striking structure is shaped by expanding shock waves. This began when the Wolf-Rayet star (WR 136) at the center of the emission nebula, while still in its red giant phase, ejected stellar wind that is now colliding with a much more energetic wind from WR 136. These winds create shock waves that travel both inward and outward, leading to strong emissions from hydrogen and oxygen atoms. For the first time, I used narrowband filters with my mono astro camera to extract the famous H-alpha emission line from the Balmer series (deep red at 656nm) and the OIII emission (between blue and green at 500nm) - both very common in many deep sky objects. It's standard practice to map the hydrogen emission to the red channel in a traditional RGB image, and the oxygen emission to both the green and blue channels. To complete the image, I added an hour of broadband data to preserve the natural star colors, which can be lost with narrowband filters. Swipe for a starless version, a more detailed view of NGC 6888, the two mono channels, and a short video blinking through the two channels. 📸 Camera: TS-Optics ToupTek MONO Astrokamera 2600MP G2 🔭 Telescope: Sony FE 200-600 @ 600mm F/6.3 ⚙️ Mount: ZWO AM5 🎛️ Filter: Astronomik 6nm HII, Astronomik 6nm OIII, Astronomik Deep Sky RGB 🕒 Exposure: 64x5min HII, 64x5min OIII, 20x1min RGB each (11h 40min total, Bortle 4) 🖥️ Captured with: N.I.N.A; Processed with: PixInsight
December 19, 2024 at 9:29 AM
drebo99.bsky.social
The Bubble Nebula

#BubbleNebula #NGC7635 #emissionnebula #hydrogenalpha #halpha #oxygenIII #sulfurII #narrowband #HSO #Hubble #nightphotography #astrophotography #astro #space #deepspace #deepsky #deepspacephotography #universe #celestron #ZWOASI

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THE COSMIC BUBBLE – Or, me vs. Hubble. When I saw the iconic image of the Bubble Nebula by the Hubble Space Telescope, it was clear that I had to explore this target. My first attempt back in 2021 didn’t get me too excited. But a lot has changed since then. The biggest improvement came from switching to a mono camera with narrowband filters. For this image, I used the classic Hubble Palette with Hydrogen, Sulfur, and Oxygen.
December 22, 2024 at 3:52 PM
starman-x.bsky.social
I would have used more words but have limited space. Hydrogen-alpha and OxygenIII are the wavelengths passed by one of my filters... these are really common wavelengths for nebulae. I have another for galaxies. Both are visible. Hydrogen is red, Oxygen is blue-green. Plenty of info on the internet.
November 27, 2024 at 6:34 PM