NarrowBand

California Nebula with added SII 

Added some more data to my image of the California Nebula. Only my 2nd narrowband image so still learning but ive mapped the Ha to Green and Blue and the SII to Red, no OIII was captured. This object has moved out of my FOV now so its time to move on and image something else. 

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Vela Supernova Remnant - 2 by Eddie Trimarchi
Via Flickr:
This is a little more of the huge Vela Supernova Remnant, a star about 800 light years away, that exploded around 12,000 years ago, creating a vast, intricate cloud of gas and radiation, appearing to us now as roughly the size of 16-full moons, but far too dim to see anything-of without a largish telescope. Bi-colour Ha-OIII 10 hours each RGB: 15 minutes 20.25 hours total GSO RC10 @ f6 Moravian G3-11000 Baader RGB and 7nm NB Synta EQ6

The beautiful Trifid Nebula, also known as Messier 20, lies about 5,000 light-years away, a colorful study in cosmic contrasts. It shares this nearly 1 degree wide field with open star cluster Messier 21 (top left). Trisected by dust lanes the Trifid itself is about 40 light-years across and a mere 300,000 years old. That makes it one of the youngest star forming regions in our sky, with newborn and embryonic stars embedded in its natal dust and gas clouds. Estimates of the distance to open star cluster M21 are similar to M20’s, but though they share this gorgeous telescopic skyscape there is no apparent connection between the two. M21’s stars are much older, about 8 million years old. M20 and M21 are easy to find with even a small telescope in the nebula rich constellation Sagittarius. In fact, this well-composed scene is a composite from two different telescopes. Using narrowband data it blends a high resolution image of M20 with a wider field image extending to M21.

Image Credit & Copyright: Martin Pugh

Melotte 15 in the Heart 

Cosmic clouds form fantastic shapes in the central regions of emission nebula IC 1805. The clouds are sculpted by stellar winds and radiation from massive hot stars in the nebula’s newborn star cluster, Melotte 15. About 1.5 million years young, the cluster stars are scattered in this colorful skyscape, along with dark dust clouds in silhouette against glowing atomic gas. A composite of narrowband and broadband telescopic images, the view spans about 15 light-years and includes emission from ionized hydrogen, sulfur, and oxygen atoms mapped to green, red, and blue hues in the popular Hubble Palette. Wider field images reveal that IC 1805’s simpler, overall outline suggests its popular name - The Heart Nebula. IC 1805 is located about 7,500 light years away toward the boastful constellation Cassiopeia.

Credit: Steve Cooper

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Learning how to use this new program for processing astrophotos called Pixinsight. It’s expensive, and there’s a huge learning curve, but I’m determined to overcome it. Last night was my very first time using it, and since it’s been cloudy and I didn’t have any new data to process I decided to tinker with some old photos that I took at last years Table Mountain Star Party. 

Here we have before and after versions of M101 and M31. I’m amazed at how much more info the program was able to draw out…and now I’m more excited than ever for warmer nights to capture some more data to process. 

In fact…I’ve made the decision that I’m going to get into narrowband imaging. Within the next year I plan on having my first set of filters, a smaller refractor (ES ED80) and a cooled CCD camera (have my eye on the ZWO ASI1600mm). This new gear along with Pixinsight is going to change how I do astrophotography entirely and I am super excited for this! Stay tuned!

Elephants Trunk Nebula IC1396

Thursday was the first clear night in ages so I took Friday off and stayed up most of the night imaging this beauty. Taken using a Canon 700D and a Canon 200mm lens

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Puppis-A Supernova Remnant by Eddie Trimarchi
Via Flickr:
The Puppis-A supernova remnant is the small bluish blob near the centre. It’s an expanding shell about 100 light years in diameter and around 7,000 light years away, with the light first reaching Earth about 3,700 years ago, the star exploded around almost 11,000 years ago.. We see it through the Vela Supernova remnant which is four times closer and resulted from a Supernova in the neighbouring constellation of Vela, about 2,000 earlier. Bi-colour Ha-OIII 12 hours each RGB: 15 minutes 24 hours total GSO RC10 @ f6 Moravian G3-11000 Baader RGB and 7nm NB Synta EQ6

The Cygnus Wall of Star Formation : Sometimes, stars form in walls bright walls of interstellar gas. In this vivid skyscape, stars are forming in the W-shaped ridge of emission known as the Cygnus Wall. Part of a larger emission nebula with a distinctive outline popularly called The North America Nebula, the cosmic ridge spans about 20 light-years. Constructed using narrowband data to highlight the telltale reddish glow from ionized hydrogen atoms recombining with electrons, the image mosaic follows an ionization front with fine details of dark, dusty forms in silhouette. Sculpted by energetic radiation from the regions young, hot, massive stars, the dark shapes inhabiting the view are clouds of cool gas and dust with stars likely forming within. The North America Nebula itself, NGC 7000, is about 1,500 light-years away. via NASA

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Normally faint and elusive, the Jellyfish Nebula is caught in this alluring telescopic mosaic. The scene is anchored below by bright star EtaGeminorum, at the foot of the celestial twin, while the Jellyfish Nebula is the brighter arcing ridge of emission with tentacles dangling below and left of center. In fact, the cosmic jellyfish is part of bubble-shaped supernova remnant IC 443, the expanding debris cloud from a massive star that exploded. Light from the explosion first reached planet Earth over 30,000 years ago. Like its cousin in astrophysical waters the Crab Nebula supernova remnant, the Jellyfish Nebula is known to harbor a neutron star, the remnant of the collapsed stellar core. An emission nebula cataloged as Sharpless 249 fills the field at the upper right. The Jellyfish Nebula is about 5,000 light-years away. At that distance, this narrowband composite image presented in the Hubble Palette would be about 300 light-years across.

Image Credit &Copyright: Eric Coles/NASA

NGC7000 - The North America Nebula

Great to finish this project and the best thing ive ever captured! Enjoy! Totaling 6hrs exposure, this was taken over 3 nights using the Canon 700Da, Canon 200mm F2.8 at F4 ISO400, 600 sec subs. Mount: iOptron Smart Eq Pro, Orion ST80 and Orion Starshoot solitaire autoguider. Right, next target!

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The Horsehead Nebula by Simon W
Via Flickr:
Only 2hrs of narrowband data unfortunately, but it’ll do for now. 3 Ha subs and 6 SII, 15MIN exposures. Some LRGB exposures as well. Using an ASI1600 mono cooled camera and Takahashi E-130D astrograph

IC 1396: Emission Nebula in Cepheus : Stunning emission nebula IC 1396 mixes glowing cosmic gas and dark dust clouds in the high and far off constellation of Cepheus. Energized by the bright central star seen here, this star forming region sprawls across hundreds of light-years, spanning over three degrees on the sky while nearly 3,000 light-years from planet Earth. Among the intriguing dark shapes within IC 1396, the winding Elephant’s Trunk nebula lies just below center. Stars could still be forming inside the dark shapes by gravitational collapse. But as the denser clouds are eroded away by powerful stellar winds and radiation, any forming stars will ultimately be cutoff from the reservoir of star stuff. The gorgeous color view is a composition of image data from narrowband filters, mapping emission from the nebula’s atomic oxygen, hydrogen, and sulfur into blue, green, and red hues. via NASA

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