NGC7000 - North American Nebula in Cygnus




With the Moon being spectacularly bright, we have been sticking to Hydrogen Alpha images. 


Roughly 2.5 hours of 6min subs SW Evostar ED80 HEQ5 Pro 600D mod + Astronomik Ha clip ZWO ASI120 Guide

M81 and M82 (Bodes and Cigar Galaxy)


The lower object, surrounded by blue spiral arms, is spiral galaxy M81. Above this, marked by red gas and dust clouds, is irregular galaxy M82. These two galaxies are locked in gravitational combat, as they have been for the past billion years.

This image was captured on a Canon 600D modified and CLS filter on a Skywatcher Evostar ED80, HEQ5 Pro. This consists of 52 x 3 min exposures at ISO 400, with 25 darks, 30 flats and 40 bias. Processing done in Photoshop CS6.

NGC 4631 (Whale Galaxy)

NGC 4631 (also known as the Whale Galaxy or Caldwell 32) is a barred spiral galaxy in the constellation Canes Venatici. The galaxy is approximately 30 million light years from Earth. The enclosed image was taken using a Skywatcher Esprit 100ED telescope with a ZWO ASI294 Pro one shot Cmos colour camera, consisting of 51 frames of 300 second each and  0 gain. The data was captured, calibrated and stacked in Astro Pixel by myself and Rachael Wood did a great job of processing the data in Photoshop.

NGC 7822

NGC 7822 is a young star forming complex in Cepheus captured with a SX Trius 694 camera on a Takahashi 106 refractor.Taken recently 22x600s Ha exposures were added to an image using the Hubble palette taken earlier this year making a total exposure of about 7hrs. Software used included Nebulosity, AstroArt, Registar, PhotoShop and PHD

The Leo Triplet

The Leo Triplet (also known as the M66 Group) is a small group of galaxies roughly 35 million light-years away in the constellation Leo. The group consists of the spiral galaxies M65 (bottom right), M66 (bottom left), and NGC 3628 (top).

Imaged in late January/Early February.

Processed in mostly PixInsight with a few light finishing touches in PS
and LR. Imaged at Austerfield with the society Takahashi and my ZWO ASI1600MM-Pro.

139 x 30s Lum, 47 x 120s Red, 60 x 90s Green, 62 x 90s Blue

~ 5.5 hours total integration

50 darks, 20 flat darks and 20 flats per filter.

Getting to grips with PixInsight has been tricky, but I am really happy with the results and going forwards the workflow should be more streamlined. I had a few false starts and had to go back to be the beginning due to finding significant colour fringing around the stars late on in the processing, which was corrected by moving the R and G alignment by a few pixels, although it is still not perfect. I think that the problem stems from my camera and/or filters not being totally inline with the telescope. Pixinsight has especially done a great job of getting rid of the complex gradients that I had in the light subs.

ngc 2359

This image combines recently taken 19x600s Ha with 3 hours worth of narrowband imaging in Jan 2016 using sxTrius 694 on a Takahashi 106.Also known as Thor's Helmet NGC 2359 is an emission nebula in Canis Major illuminated by a Wolf-Rayet star.Lying low in the sky the imaging target is faint and masked by light pollution but it is possible to make out the complex filamentous structure of this remarkable object.
Software used was Nebulosity,AstroArt,Registar, PhotoShop,Sky10 and PhD.

Noctilucent Clouds 70mm

Noctilucent (Night Shining) Clouds over North Doncaster. They are typically observed during the summer months from latitudes between 50° and 70° north and south of the Equator. They only be seen during local summer months, when the Sun is below the observer's horizon, the clouds are at an altitude of around 50 miles, so are still in sunlight. They consist of ice crystals which reflect the Sunlight to the observer's location.

The focal length of the lens is 70mm. This image was taken on the same early morning as the other image but a little later on after the moon had risen. The cloud had moved somewhat and the light from the Moon and approaching dawn provided more ambient light. The sky is 10s and the foreground is 30s @ f2.8 ISO 800.

Noctilucent Clouds 35mm

Noctilucent (Night Shining) Clouds over North Doncaster. They are typically observed during the summer months from latitudes between 50° and 70° north and south of the Equator. They only be seen during local summer months, when the Sun is below the observer's horizon, the clouds are at an altitude of around 50 miles, so are still in sunlight. They consist of ice crystals which reflect the Sunlight to the observer's location.

The focal length of the lens here is 35mm. the foreground consists of 5 images stacked for NR and then focus stacked which works I think here even though it is not perfect. It was still relatively dark, the sky is 13s and the foreground is 45s, @ f2.8 ISO 800.

Sadr

Gamma Cygni is a bright star superimposed upon an extensive region of nebulosity only part of which is shown in this frame which is a combination of 6x600s Ha,5x600s O111 and 1x600s S11 exposures, applying the Hubble palette, taken on 11.7.18.The camera a sxTrius694 was attached to a Takahashi 106 refractor.

The Milky Way Core, Mars, Jupiter and Saturn

Imaged from Lanzarote, Mars can be seen just above the horizon on the bottom left, Saturn is close to the centre of the image to the left of the Lagoon and Trifid Nebulae and Jupiter is the very bright object at the top right of the image.

Light pollution was a lot worse than I had bargained on, however due to the unpredictable weather and time constraints I did not want to change location. Hence the sky has taken quite a lot of processing to get something out that I am happy with. Although it worked in my favour for
lighting the middle foreground and the sea. I used a light pollution filter (Nisi Natural Night 150x150mm plate) on the front of the lens
which helped somewhat but doesn't do much against the white LED light that came from the towns to the left. It also left that purple colour cast to the top left, but I quite like that here. It did a decent job on the orangey light on the right which is from the next-door island of Fuerteventura.

I have used artistic license a little on Mars and the Rho Ophiuchi Cloud Complex by enhancing the colours somewhat.

Nikon D750, Sigma 14mm f1.8, Skywatcher Star Adventurer Tracking Mount.

Sky: 13 x 90s @ f2.8 ISO 2000

Foreground : Focus stack of 3 images, 120s, 90s and 50s @f4 ISO 400

Sky stacked in Nebulosity 4 for NR, then processed in PS & LR.
Foreground processed in PS & LR and then blended with the sky in PS.