Swansea Astronomical Society Blog

A reprocess of my Jellyfish nebula in Hubble Palatte from several years ago.

Imaged using my Atik428 mono with an Altairastro 70 using narrowband filters. I was never satisfied with the original version. Now I'm more experienced with Pixinsight I had another go. In particular I used the new version of colour mask to adjust the tones in various parts of the image. The Oiii areas benefitted from this as it was rather weak, hence the mustard hue of most of the nebula.

Click on the image to get a closer view

The re-processed Jellyfish nebula

Anne Startup

posted by astroimager  # 11:15 PM 0 Comments

I have reprocessed my image of the Jellyfish Nebula. This has been converted to SHO style from RBG data. I have experimented with luminous masks and masks for sharpening. Data obtained with a William optics Zenithstar 73 with a ZWO 533mc pro and L-enhance filter.

Click on the image to get a closer view

The Jellyfish nebula

John Beer

posted by astroimager  # 12:41 AM 0 Comments

The image data were captured by AstroDMx Capture through a William Optics Super Zenithstar 81mm ED Doublet APO refractor at f/5.5 with x 0.8 reducer/flattener, using an SVBONY SV605MC 14 bit, cooled, monochrome CMOS camera using Altair 2" narrowband SII, H-alpha and OIII filters.

For full details and all of the images look HERE.

Click on the image to get a closer view

Hubble Palette Horsehead and Flame nebulae

Steve Wainwright and Nicola Mackin

posted by astroimager  # 6:12 PM 0 Comments

I have been busy reprocessing some data in Pixinsight. I am trying to get used to dealing with multiple channels of data and combining them into colour images. I have experimented a lot with luminance layers today.

The images here are a kind of 'SHO' format (Hubble palette but tuned to my liking).

Click on an image to get a closer view.

Flaming star nebula

John Beer

posted by astroimager  # 12:29 AM 0 Comments

Several SAS members took part in Swansea’s National Waterfront Museum’s “Super Science Sunday” event on the 19th March

posted by astroimager  # 2:55 PM 0 Comments

The Leo Triplet in Leo the Lion. Settings were 1 min and ISO1600. I used a 1300D DLSR Canon camera mounted on a Skywatcher 80ED APO Refactor telescope with a field flattener. The telescope was mounted on an EQ5 GOTO mount. I used a Bantinov mask for focusing on a bright star and an intervaloeter to control the camera. The image is a stack of 30 images before the clouds rolled in and I had to stop imaging. The image was stacked in Sequator and processed in the GIMP 2.10 and Free Photo Noise Reduction.

Click on an image to get a closer view

Bahtinov spikes showing that the scope was well focused

The Leo triplet

Chris Playle

posted by astroimager  # 10:23 PM 0 Comments

Click on an image to get a closer view

I imaged the Jellyfish nebula  with my William Optics Zenithstar 73. I used my ZWO 533MC Pro and L-Enhance filter.

4.5 hours total integration time. 

This was a 4.5 hour integration of the Horsehead nebula.

I used my WO Zenithstar 73 III Apo with my ZWO 533mc Pro and ASIAir with an L-Enhance filter.

Processed in Pixinsight .

M81 and M82 and M101

First time to image with scope without the L-Enhance and used a UV/IR cut filter.

WO Zenithstar 73III with a ZWO 533mc Pro. 3 Hours integration time

Processed in Pixinsight

M81 and M82

M42, the Orion nebula. This is a multistacked image of 10 second, 30 second, 60 second, 120 second and 300 second exposures. Combined in Pixinsight using the HDR combination. Stretched using the generalized hyperbolic stretch.

WO Zenithstar 73 III APO

ZWO 533MC Pro

Optolong L-Enhance filter

Tadpole nebula of around 3 hours of data with my WO Zenithstar 73III and ZWO 533MC Pro with an L-Enhance filter.

The moon was very close to the target and was problematic to process

This is the Monkeyhead Nebula. Lots of clouds last night so not too much data but happy with the result. Images in RGB and Hubble palette style.

WO Zenithstar 73 III APO

ZWO 533mc Pro

Heq6 Pro Mount

Processed in Pixinsight

posted by astroimager  # 10:07 PM 0 Comments

Click on an image to get a closer view

Leo Triplet:

64 mins Luminance, 20 mins Red, 20 mins Green, 20 mins Blue, 30 mins Ha taken with a ZWO ASI 533MM Pro camera attached to an Altair 60EDF doublet refractor fitted with a 0.8 x FR.The images were taken from Fairwood mostly on the night of 26th Feb, but bright moonlight and aurora required some re-shoots which were subsequently done at Fairwood on the 14th March. Total integration time was 154 minutes with stacking and processing done in Pixinsight.

Rosette Nebula:

A joint effort of the Rosette nebula comprising blended narrowband, luminance and RGB data taken at two separate member’s viewing and imaging evenings at Fairwood. The image comprises a range of 5 min subs of 30 mins luminance, 15 mins Ha, 20 mins SII and 35 mins of OIII data taken with an ASI 533MM Pro mono camera on an Altair 60EDF fitted with a 0.8x FR. Images were stacked and processed in Pixinsight using the S/O/H combination with luminance added with LRGB combination and Ha added via the NBRGB script. Finally the stars were removed using StarXTerminator and replaced with RGB stars from data supplied by John Beer who integrated the same target using his ASI 533MC Pro colour camera using a 73mm refractor. The RGB stars were screened in using Pixelmath to make the final composition.

Chris Bowden

posted by astroimager  # 1:18 PM 0 Comments