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Swansea Astronomical Society Blog

Wednesday, December 4, 2019

 
54.6% waxing, Moon. Stack of 161 images.
A Panasonic Lumix DMC-FZ72 bridge camera mounted on a static tripod, was used to capture 179 images at 1/320s exposure and 60x optical zoom in bursts of three. The images were precisely cropped in Nicola's Astrocrop software.
The best 90% of the images were stacked in Autostakkert!3.1. The resulting image was wavelet processed in Registax 5.1 and post processed in Glimpse (a fork of the Gimp).

Click on the image to get a closer view.


Steve Wainwright

Monday, December 2, 2019

 

The Elephant trunk nebula

The data were captured over three nights.
Altair Wave 102 scope, SX H694 ccd camera. 16x600s each of Ha, Olll and Sll. I used my new iOptron CEM60ec mount. 1st night I used Maxim DL, 2nd and 3rd I switched to Sequence Generator Pro as it's easier to frame accurately.
False colour images were created as follows:

R: Ha,  G: Sll,  B: Olll

R: Sll, G: Ha, B: Olll (Hubble Palette)

R: Ha, G: Olll, B: Olll

R: Ha, G: Olll, B: Sll (Canada, France, Hawaii Palette)

Anne Startup

Sunday, December 1, 2019

 

Deep Sky Sketches

A 150mm refractor was used with a Starlight express Ultra star camera as an electronic eyepiece to make these sketches.

Click on an image to get a closer view.








Jim Startup

Saturday, November 30, 2019

 

10.6% waxing, crescent Moon and a wide-field image including venus

10.6% waxing, crescent Moon. Stack of 216 images.
A Panasonic Lumix DMC-FZ72 bridge camera mounted on a static tripod, was used to capture images at 1/160s exposure and 60x optical zoom: 118 at ISO 1600 and 98 at ISO 400; These were the best 90% of the captured images at each ISO setting. All of the images were precisely cropped for each ISO setting, in Nicola Mackin's AstroCrop software. The data were stacked (best 90%) separately in Autostakkert!3 and wavelet processed in Registax 5.1. The two resulting images were derotated and merged in Glimpse Image Editor (A fork of the Gimp).

Click on an image to get a closer view



Stack of a burst of 3 wide field images of the crescent Moon with Venus at the right of the image


Steve Wainwright

Sunday, November 17, 2019

 

Star party at the National Botanic Garden of Wales

On Saturday November 16th, the Swansea Astronomical Society held a star party at the National Botanic Garden of Wales.

Thanks in particular to Andrew, Alistair, Alison, Phil and Chris for everything they did.
Despite the weather 60 adults turned up plus quite a lot of children and a dozen or so scouts who were staying overnight in the Great Glasshouse.  Alison and Andrew kept everyone thoroughly entertained throughout the evening, especially the children, and Chris did a talk to a 'full house' and Paul entertained the scouts afterwards.  One youngster came along with his scope and Chris was able to get it working - not often that that happens.  Also there were a few expressions of interest in joining the society.

The next Star party at the Garden will be on Saturday Feb 22nd and we are hoping to use the refurbished Theatre, possibly with a planetarium inside.


Photos by Chris Bowden




Photos by Alistair Vowles

Tuesday, November 12, 2019

 

Transit of Venus

Swansea Astronomical society members made a number of observations and captured images from the Fairwood observatory and other locations.


Chris Bowden



Anne Startup


A Panasonic Lumix 60 x Optical zoom bridge camera on a static tripod was used to capture the images.



Steve Wainwright and Nicola Mackin



A single image from a Canon EOS M5,ISO 400, 1/60 s. Shot through my 200mm Celestron SCT with a Thousand Oaks white light filter. I use an f/6.3 reducer to get the whole Sun in shot, but the effective aperture is less than that as it’s an off-axis filter.


Nick Lewis
 

Lunar studies

Celestron 9.25 SCT AVX, 2xTelevue Barlow, ZWO ASI120MM camera, 3000 images captured in Firecapture 2.5x64, 750 stacked and aligned in AutoStakkert!2.6, wavelets in Registax 6, then edited in Adobe Elements 11

Clavius and Blancanus


Copernicus


Longomontus


Wilhem W

Colin Miles

Sunday, November 10, 2019

 

87% Waxing, gibbous Moon

A motor-focuser-adapted Bresser Messier AR 102xs f/4.5 ED refractor was mounted on a Celestron AVX GOTO mount and a QHY 5-ll-M camera was placed at the prime focus. Two 1500-frame SER files were captured with AstroDMx Capture for Linux with an Ubuntu laptop. The best 90% of the frames of the two SER files were stacked in Autostakkert!, Stitched in Hugin Panorama creator  and wavelet processed in Registax 5.1. The final image was post processed in the Gimp 2.10.

Click on the image to get a closer view.


Steve Wainwright and Nicola Mackin

Friday, November 8, 2019

 

The Tarantula nebula with the iTelescope

An image of the Tarantula nebula taken using iTelescope.
Image captured remotely using a Takahashi 106mm, f5, FSQ ED refractor based at Sliding Spring, Australia.
CCD - FLI Microline 11002 with Astrodon filters.
6x600s Ha, 6x180s with each of R, G and B filters.
Subs stacked in Maxim dl and further processed in Pixinsight.


Anne Startup

Monday, October 28, 2019

 

Ethernet over mains and imaging with AstroDMx Capture for Linux and a Canon EOS 4000D

A motor-focuser-adapted Bresser Messier AR 102xs f/4.5 ED refractor was mounted on the HEQ5 Synscan GOTO mount in the observatory. Using a 2" adapter, fitted with a light-pollution filter, a Canon 4000D DSLR was placed at the prime focus of the refractor. The DSLR was USB tethered to the observatory Ubuntu laptop.

30 x 90s exposures at ISO 6400 were captured of M31 with matching dark-frames and 22 x 90s exposures were captured of NGC7798, Caroline Herschel's White Rose cluster in Casseopeia.
The camera RAW images were stacked in Deep Sky Stacker and post processed in the Gimp 2.10.

The Andromeda galaxy

NGC7798, Caroline Herschel's White Rose cluster

Full details of the Ethernet over mains imaging experiment can be found HERE

Steve Wainwright and Nicola Mackin

Thursday, October 24, 2019

 

Deep Sky Observing in Cassiopeia (Society Talk)

Many thanks to Daryl Dobbs who visited us this evening to tell us about deep sky observing in Cassiopeia. There are many objects in Cassiopeia that are observed as often as others in the sky. These include 
the Bubble Nebula, variable stars, orange star cluster, lobster claw emission nebula, Pac-man nebula, Heart and Soul Nebula, Tycho's supernova and Caroline Herschel's white rose.

The bubble nebula, lobster claw and Pac-man nebula are pictured below. Thank you again Daryl, we're sure our members will be looking out for some of these next time they're out imaging!




Sunday, October 20, 2019

 

Python and the Moon

More experiments with Python, OpenCV, and DFK lunar imaging.
Click on the link below the image image to see more images and a full account of the experiment.

Click on the link below the image
Steve Wainwright

Friday, October 18, 2019

 

Lunar imaging with a little Python code

I set up the Celestron AVx mount with a Skymax 127 Maksutov. A DFK camera was placed at the Cassegrain focus and I tried out the latest version of my Python DFK AVI capture program running in the Thonny IDE on an Ubuntu 18.04 laptop. I managed to collect data on two overlapping regions of the 98.7% waning Moon before the gap in the clouds closed permanently. The results were stacked and wavelet processed in Registax 5.1, and the two resulting images stitched in Microsoft ICE.

Click on an image to get a closer view.

Two pane mosaic

Screenshots
Focusing on an enlarged review

Capturing an AVI

Focusing on an enlarged preview

Capturing an AVI

Steve Wainwright

Tuesday, October 15, 2019

 

M27 with a very low cost SVBONY SV305 deep sky and planetary camera and a 102mm ED refractor.

Stack of 36 x 22.6s exposures of M27 using motor-focuser-adapted Bresser Messier AR 102xs, 102mm, f/4.5, ED refractor and a very low cost SVBONY SV305 deep sky and planetary camera.


SVBONY's fresh approach to low cost astronomy cameras has produced a winner in the SV305.

Steve Wainwright

Tuesday, October 8, 2019

 

Deep Sky delights

All taken with my Altair Starwave 70EDT refractor and Atik 428 mono ccd camera.

Click on an image to get a closer view
Caldwell 3

The Eastern Veil

The witches broom

The Soul nebula

Anne Startup

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