Swansea Astronomical Society on Facebook

Join us
on Facebook

Swansea Astronomical Society on Twitter

Follow us
on Twitter

Swansea Astronomical Society Blog

Saturday, June 15, 2019

 

The Late Brian Spinks a much loved member of the Swansea Astronomical Society

It is with great sadness that I report the death this week, of Brian Spinks, a well loved and most valuable member of the Swansea Astronomical Society.
His woodworking skills were put to good use during the fitting out of the new observatory as they were at a number of times during his long and productive membership.
Brian was chairman of the society for a while; stepping in after Fred Whittle passed away.
Most of all, I remember Brian for his outreach activities where he engaged with members of the public, showing them in a practical way, how telescopes work and how they can be used for astronomy.

Brian showing how to observe the Sun safely


Brian giving a talk to the Swansea Astronomical Society on binoculars
Brian loved to use an overhead projector

Brian passed away with his family around him and he will be sadly missed by all who knew him.

Steve Wainwright

Friday, June 14, 2019

 

93.3% waxing Moon with a Lumix DMC-FZ72 60x optical zoom bridge camera

A Lumix DMC-FZ72 60x optical zoom bridge (equivalent to F=1200mm in 35mm) bridge camera was placed on a static tripod and was set to ISO 100, f/5.9 at 1/400s. Images of the 93.3% waxing Moon were captured in bursts of 3. The images were precisely cropped in Nicola's AstroCrop. The best 100 cropped  images were stacked in Autostakkert!. The resulting image was post-processed in Affinity Image and the Gimp2.10

Click on the image to get a closer view.

Screenshot of AstroCrop, precisely cropping the Moon out of much larger images


93.3% waxing Moon


Steve Wainwright & Nicola Mackin

Monday, June 10, 2019

 

45% waxing Moon at twilight with a Lumix DMC-FZ72 60x optical zoom Bridge camera

A Lumix DMC-FZ72 60x optical zoom bridge (equivalent to F=1200mm in 35mm) bridge camera was placed on a static tripod and was set to ISO 200, f/5.9 at 1/640s. 129 images were captured in bursts of 3. The original images were 4608 × 3456 pixels and were precisely cropped to 1400 x 1650 pixels in Nicola's AstroCrop.

Click on an image to get a closer view.

Screenshot of AstroCrop, automatically cropping the Moon out of the original images


The best 80% of the cropped images were stacked in Autostakkert!, wavelet processed in Registax 5.1 and post processed in the Gimp 2.10 and Affinity Photo.

45% waxing, crescent Moon


Steve Wainwright & Nicola Mackin

Wednesday, June 5, 2019

 

7.1% waxing, crescent Moon with a Bridge camera

7.1% waxing crescent Moon tonight. A Lumix DMC-FZ72 60x optical zoom bridge (equivalent to F=1200mm in 35mm) bridge camera images were precisely cropped in Nicola's AstroCrop software. The best 67 images were stacked in Registax 5.1 and post processed in the Gimp 2.10.

Click on the image to get a closer view


Steve Wainwright & Nicola Mackin

Thursday, May 16, 2019

 

The Lunar terminator with AstroDMx Capture for MacOS

A QHY 5L-ll-M camera was placed at the Cassegrain focus of a Skymax 127 Maksutov, mounted on a Celestron AVX EQ, GOTO mount.
Six overlapping 10,000 frame SER files were captured of the terminator of the 89% waxing Moon using Nicola's AstroDMx Capture for MacOS.
The best 10% of the frames in each of the SER files were stacked in Autostakkert!3 running in Wine. The resulting images were stitched using Panorama Stitcher and the resulting image was wavelet processed in Registax 6 running in Wine and post processed in the Gimp 2.10.

Screenshots of AstroDMx Capture for MacOS capturing data




Click on the image and click again to get a close view

6-pane Mosaic of the terminator of the 89% waxing Moon



Steve Wainwright & Nicola Mackin

Wednesday, May 15, 2019

 

The Sun and Moon for the past few days with AstroDMx Capture for MacOS

Nicola has been working hard on the implementation of AstroDMx Capture for MacOS. Most of the functionality is there and we have been able to give the software some thorough testing over the past few days.

Click on an image and maybe click again to get the closest view

Solar
Screenshot of AstroDMx Capture for MacOS capturing solar H-alpha data



H-alpha solar disk showing AR2741 and 2740



Detail from H-alpha image




Avian transit of the H-alpha Sun




Solar disk in Ca K-line light



Detail of Ca K-line data



Lunar
Screenshot of AstroDMx Capture for Linux capturing lunar data



3 Pane mosaic lunar detail
Click on the images and maybe click again for closest views



Ptolomaeus, Alphonsus and Arzachel



Theophilus, Cyrillus and Catharina



19 pane Lunar mosaic



Screenshot of AstroDMx Capture for Linux capturing a 30,000 frame SER file of Crater Clavius



Crater Clavius



Crater Copernicus


Steve Wainwright & Nicola Mackin


Saturday, May 11, 2019

 

The Sun in White light

Taken with an Altair Wave 102 with a Thousand Oaks solar filter and the Altair Hypercam 178M on an Ioptron Cem60ec.
Best 30% frames in each case, though the full disk was made up of two stacks, to get a whole disk image.
Stacked in Autostakkert! v3 then sharpened in IMPPG. Tiff files finished in Photoshop.



Anne Startup

Thursday, May 9, 2019

 

The Sun with a bridge camera

Stack of 84 Panasonic Lumix DMC-FZ72 60x optical zoom bridge (equivalent to F=1200mm in 35mm) camera images of the Sun ( Camera fitted with a Baader solar filter), precisely cropped in Nicola Mackin's AstroCrop. Stacked in Autostakkert!, wavelet processed in Registax 5.1 and post processed in the Gimp 2.10

Click on the image to get a closer view.



AR 2740 and AR 2741 are clearly visible

Steve Wainwright & Nicola Mackin

Monday, May 6, 2019

 

Jupiter and Europa


Celestron 9.25 SCT AVX, ZWO ASI120MC-S, 5300 images captured in Firecapture 2.5x64, 750 images stacked and aligned in AutoStakkert!3, wavelets in Registax 6, then edited in Adobe Elements 11.



Colin Miles

Thursday, May 2, 2019

 

M64 with a DSLR and AstroDMx Capture for MacOS

A Canon EOS 4000D DSLR camera was placed at the Newtonian focus of a Skywatcher Explorer 130 PDS 130mm, f/5 Newtonian.
A MacBook running High Sierra and Nicola's AstroDMx Capture for MacOS was used to capture 18 x 60s exposures and 5 matching dark-frames as 16 bit Tiff files of M64, the Black Eye Galaxy.

Stack of best 17 images




Steve Wainwright & Nicola Mackin

Tuesday, April 30, 2019

 

M3 with AstroDMx Capture for MacOS

A ZWO ASI178MC USB 3.0, 14 bit ADC camera was placed at the Newtonian focus of a Skywatcher Explorer 130 PDS 130mm, f/5 Newtonian.
A MacBook running High Sierra and Nicola's AstroDMx Capture for MacOS was used to capture 30 x 45s exposures and 10 matching dark-frames as 16 bit Tiff files.
Deep Sky stacker running in Wine stacked the best 26 images. The resulting image was post processed in The Gimp 2.10 and Neat Image.
Click on an image to get a closer view
The imaging setup



Screenshot of AstroDMx Capture for MacOS streaming data



M3



Steve Wainwright & Nicola Mackin

Friday, April 26, 2019

 

Mapping the Solar System from your Backyard

Thank you very much to Dr Jane Clark who visited us last night to share her use of modest equipment to map the solar system. Using a webcam, a home made quadrant, a modest telescope and some maths formulae, Dr Clark was able to measure the distance to Jupiter, show the orbit of Neptune, work out the orbital positions of Jupiter's moons relative to the planet and many more. Her success rate was within 1-2% of published results! A great way to see the figures we see in books in action. Thank you very much to Dr Clark for showing us her methods.





Monday, April 22, 2019

 

Astronomical imaging with a headless Raspberry Pi and a Tablet computer, using AstroDMx Capture for Linux.

AstroDMx Capture for Linux was running on a Raspberry Pi 3B. The Raspberry Pi was running a VNC server and was operating headless (without a keyboard, mouse or screen).

The Pi was operating as a wireless access point which allowed a Samsung Galaxy Note tablet to connect to the access point in exactly the same way that it would connect to a router. The tablet was running a VNC viewer and was able to access, display and control the Raspberry Pi desktop and enabled the launching, viewing and control of Nicola's AstroDMx Capture for Linux, running on the Pi via the tablet.

The Raspberry Pi was powered by a 5000mAh Power Bank. It also boots from a 240GB SSD which gives lots of storage for images captured. The Power Bank cost about GBP 6 and the SSD cost about GBP 25.

Click on an image to get a closer view

The imaging setup with a DMK 21AU04.AS camera at the Cassegrain focus of a Skymax 127 Maksutov. The tablet computer and the headless Raspberry Pi can be seen on the table.



The Tablet computer displaying and controlling the Raspberry Pi desktop


AstroDMx Capture for Linux is running and streaming data of Mare Crisium from the DMk camera. The Power Bank and the headless Pi can be seen on the right.

Screenshot from the Tablet computer



The Desktop of the Raspberry Pi is visible behind AstroDMx Capture for Linux, which is streaming data from the DMK camera.

This experiment was proof of concept. More experiments and imaging runs with long and short exposures and a variety of cameras will be done to show the capabilities of the setup.

Steve Wainwright & Nicola Mackin

Sunday, April 21, 2019

 

First Light for AstroDMx Capture for MacOS.

Nicola is making good progress with this version of AstroDMx Capture running on the UNIX operating system MacOS. This version of AstroDMx Capture is still a work in progress, but already has a lot of functionality
A QHY 5L-II-M camera was placed at the Cassegrain focus of a Skymax 127 scope mounted on a Celestron AVX, EQ, GOTO mount.
5000-frame SER files were captured of various regions of the 96.8% waning Moon using AstroDMx Capture for MacOS and a MacBook running High Sierra. The best 40% of the frames in the SER files were stacked in Autostakkert! and wavelet processed in Registax 5.1, both running in Wine. The images were post processed in the Gimp 2.10. Two overlapping images were stitched together with Panorama Stitcher.

Click on an image to get a closer look

The imaging setup


Screenshot of AstroDMx Capture for MacOS, streaming data at maximum resolution for focusing


Mare Serenitatis


Mosaic of two overlapping panels in the Mare Crisium region


Steve Wainwright & Nicola Mackin

Saturday, April 20, 2019

 

99.5% waning Moon with a bridge camera

Stack of 100 Panasonic Lumix DMC-FZ72 60x optical zoom bridge (equivalent to F=1200mm in 35mm) camera images of the 99.5% waning Moon, precisely cropped in Nicola Mackin's AstroCrop. Stacked in Autostakkert!, wavelet processed in Registax 5.1 and post processed in the Gimp 2.10

Click on the image to get a closer view.


Steve Wainwright & Nicola Mackin

Friday, April 19, 2019

 

99.5% waxing Moon with a bridge camera

Stack of 98 Panasonic Lumix DMC-FZ72 60x optical zoom bridge (equivalent to F=1200mm in 35mm) camera images of the 99.5% waxing Moon, precisely cropped in Nicola Mackin's AstroCrop. Stacked in Autostakkert!, wavelet processed in Registax 5.1 and post processed in the Gimp 2.10

Click on the image to get a closer view.


Steve Wainwright & Nicola Mackin

Saturday, April 13, 2019

 

AR2738 in H-alpha light

A Solarmax ll, 60, BF15 was mounted on an equatorial mount and a DMK 21AU04.AS camera with a 2.5 x Barlow was fitted. A 15000-Frame SER file was captured with Nicola's AstroDMx capture for Linux. The best 50% of the 15000-Frames were stacked in Autostakkert! with drizzle 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 & Nicola Mackin
 

Half Moon with a Bridge camera

A Panasonic Lumix DMC-FZ72 60x optical zoom Bridge (equivalent to F=1200mm in 35mm) camera was placed on a fixed tripod. ISO was set to 200 and exposure to 1/320s. 82 images of the Half Moon were capture in rapid succession and then precisely cropped in Nicola Mackin's AstroCrop. The best 90% of the cropped images were stacked in Autostakkert!, wavelet processed in Registax 5.1 running in Wine under MacOS and post processed in the Gimp 2.10.

Screenshot of AstroCrop running in Wine under MacOS


The Half Moon


Steve Wainwright & Nicola Mackin

Friday, April 12, 2019

 

Crater studies on the 40% waxing Moon

Celestron 9.25 SCT AVX, 2xTelevue Barlow, ZWO ASI120MM camera, 5000 images captured in Firecapture 2.5x64, 750 stacked and aligned in AutoStakkert!2.3, wavelets in Registax 6, then edited in Adobe Elements 11

Aristoteles, Mitchell 



Eudoxus 



Kaiser, Stofler, Faraday 



Madler, Theophilus 



Maurolycus, Barocius 


Colin Miles

Archives

December 27, 2009   January 3, 2010   January 17, 2010   January 24, 2010   January 31, 2010   February 7, 2010   February 14, 2010   February 21, 2010   February 28, 2010   March 7, 2010   March 14, 2010   March 21, 2010   March 28, 2010   April 4, 2010   April 11, 2010   April 18, 2010   April 25, 2010   May 2, 2010   May 9, 2010   May 16, 2010   May 23, 2010   May 30, 2010   June 6, 2010   June 13, 2010   June 20, 2010   June 27, 2010   July 4, 2010   July 11, 2010   July 18, 2010   July 25, 2010   August 1, 2010   August 8, 2010   August 15, 2010   August 22, 2010   August 29, 2010   September 12, 2010   September 19, 2010   September 26, 2010   October 3, 2010   October 10, 2010   October 17, 2010   October 24, 2010   October 31, 2010   November 7, 2010   November 14, 2010   November 21, 2010   November 28, 2010   December 5, 2010   December 12, 2010   December 19, 2010   December 26, 2010   January 2, 2011   January 9, 2011   January 16, 2011   January 23, 2011   January 30, 2011   February 6, 2011   February 13, 2011   February 20, 2011   February 27, 2011   March 6, 2011   March 13, 2011   March 20, 2011   March 27, 2011   April 3, 2011   April 10, 2011   April 17, 2011   April 24, 2011   May 8, 2011   May 15, 2011   May 22, 2011   May 29, 2011   June 5, 2011   June 12, 2011   June 19, 2011   June 26, 2011   July 3, 2011   July 10, 2011   July 17, 2011   July 24, 2011   July 31, 2011   August 7, 2011   August 14, 2011   August 21, 2011   August 28, 2011   September 11, 2011   September 25, 2011   October 2, 2011   October 9, 2011   October 16, 2011   October 23, 2011   October 30, 2011   November 6, 2011   November 13, 2011   November 20, 2011   November 27, 2011   December 4, 2011   December 11, 2011   December 18, 2011   December 25, 2011   January 1, 2012   January 8, 2012   January 15, 2012   January 22, 2012   January 29, 2012   February 5, 2012   February 12, 2012   February 19, 2012   February 26, 2012   March 4, 2012   March 11, 2012   March 18, 2012   March 25, 2012   April 1, 2012   April 8, 2012   April 15, 2012   April 22, 2012   May 6, 2012   May 13, 2012   May 20, 2012   May 27, 2012   June 17, 2012   July 8, 2012   July 15, 2012   July 22, 2012   August 5, 2012   August 12, 2012   August 19, 2012   August 26, 2012   September 2, 2012   September 9, 2012   September 16, 2012   September 23, 2012   September 30, 2012   October 7, 2012   October 14, 2012   October 21, 2012   October 28, 2012   November 4, 2012   November 11, 2012   November 18, 2012   November 25, 2012   December 2, 2012   December 9, 2012   December 16, 2012   December 23, 2012   December 30, 2012   January 6, 2013   January 13, 2013   January 20, 2013   January 27, 2013   February 3, 2013   February 10, 2013   February 17, 2013   February 24, 2013   March 3, 2013   March 10, 2013   March 17, 2013   March 24, 2013   March 31, 2013   April 7, 2013   April 14, 2013   April 21, 2013   April 28, 2013   May 5, 2013   May 12, 2013   May 19, 2013   May 26, 2013   June 2, 2013   June 9, 2013   June 16, 2013   June 23, 2013   June 30, 2013   July 7, 2013   July 14, 2013   July 21, 2013   July 28, 2013   August 11, 2013   August 18, 2013   August 25, 2013   September 1, 2013   September 8, 2013   September 15, 2013   September 22, 2013   September 29, 2013   October 6, 2013   October 13, 2013   October 27, 2013   November 3, 2013   November 10, 2013   November 17, 2013   November 24, 2013   December 1, 2013   December 8, 2013   December 15, 2013   December 22, 2013   December 29, 2013   January 5, 2014   January 12, 2014   January 19, 2014   January 26, 2014   February 2, 2014   February 9, 2014   February 16, 2014   February 23, 2014   March 2, 2014   March 9, 2014   March 16, 2014   March 23, 2014   March 30, 2014   April 6, 2014   April 13, 2014   April 20, 2014   April 27, 2014   May 4, 2014   May 11, 2014   May 25, 2014   June 1, 2014   June 8, 2014   June 15, 2014   June 22, 2014   June 29, 2014   July 6, 2014   July 20, 2014   July 27, 2014   August 3, 2014   August 10, 2014   August 17, 2014   August 24, 2014   August 31, 2014   September 7, 2014   September 14, 2014   September 21, 2014   September 28, 2014   October 5, 2014   October 12, 2014   October 19, 2014   October 26, 2014   November 2, 2014   November 9, 2014   November 16, 2014   November 23, 2014   November 30, 2014   December 7, 2014   December 14, 2014   December 21, 2014   December 28, 2014   January 4, 2015   January 11, 2015   January 18, 2015   January 25, 2015   February 1, 2015   February 8, 2015   February 15, 2015   February 22, 2015   March 1, 2015   March 8, 2015   March 15, 2015   March 22, 2015   March 29, 2015   April 5, 2015   April 12, 2015   April 19, 2015   April 26, 2015   May 3, 2015   May 10, 2015   May 17, 2015   May 24, 2015   May 31, 2015   June 7, 2015   June 14, 2015   June 21, 2015   June 28, 2015   July 5, 2015   July 12, 2015   July 19, 2015   July 26, 2015   August 2, 2015   August 9, 2015   August 16, 2015   August 23, 2015   August 30, 2015   September 6, 2015   September 13, 2015   September 20, 2015   September 27, 2015   October 4, 2015   October 11, 2015   October 18, 2015   October 25, 2015   November 1, 2015   November 8, 2015   November 22, 2015   November 29, 2015   December 20, 2015   December 27, 2015   January 3, 2016   January 10, 2016   January 17, 2016   January 24, 2016   January 31, 2016   February 7, 2016   February 14, 2016   February 21, 2016   February 28, 2016   March 6, 2016   March 13, 2016   March 20, 2016   March 27, 2016   April 3, 2016   April 10, 2016   April 17, 2016   April 24, 2016   May 1, 2016   May 8, 2016   May 15, 2016   May 22, 2016   May 29, 2016   June 5, 2016   July 10, 2016   July 17, 2016   July 31, 2016   August 7, 2016   August 14, 2016   August 21, 2016   August 28, 2016   September 4, 2016   September 11, 2016   October 2, 2016   October 9, 2016   October 16, 2016   October 30, 2016   November 6, 2016   November 13, 2016   November 20, 2016   November 27, 2016   December 4, 2016   December 11, 2016   December 18, 2016   December 25, 2016   January 1, 2017   January 8, 2017   January 15, 2017   January 22, 2017   January 29, 2017   February 5, 2017   February 12, 2017   February 19, 2017   February 26, 2017   March 5, 2017   March 12, 2017   March 19, 2017   March 26, 2017   April 2, 2017   April 9, 2017   April 16, 2017   April 23, 2017   April 30, 2017   May 7, 2017   May 14, 2017   May 21, 2017   May 28, 2017   June 4, 2017   June 11, 2017   June 18, 2017   July 2, 2017   July 9, 2017   July 16, 2017   July 23, 2017   August 6, 2017   August 13, 2017   August 20, 2017   August 27, 2017   September 10, 2017   September 17, 2017   September 24, 2017   October 1, 2017   October 8, 2017   October 15, 2017   October 22, 2017   October 29, 2017   November 5, 2017   November 12, 2017   November 19, 2017   November 26, 2017   December 3, 2017   December 10, 2017   December 24, 2017   December 31, 2017   January 7, 2018   January 21, 2018   January 28, 2018   February 4, 2018   February 11, 2018   February 18, 2018   February 25, 2018   March 4, 2018   March 18, 2018   March 25, 2018   April 8, 2018   April 15, 2018   April 22, 2018   April 29, 2018   May 6, 2018   May 13, 2018   May 20, 2018   May 27, 2018   June 3, 2018   June 10, 2018   June 17, 2018   June 24, 2018   July 1, 2018   July 8, 2018   July 15, 2018   July 22, 2018   August 5, 2018   August 12, 2018   August 19, 2018   August 26, 2018   September 2, 2018   September 9, 2018   September 23, 2018   September 30, 2018   October 7, 2018   October 14, 2018   October 21, 2018   October 28, 2018   November 4, 2018   November 11, 2018   November 18, 2018   December 2, 2018   December 9, 2018   December 16, 2018   December 30, 2018   January 6, 2019   January 13, 2019   January 20, 2019   January 27, 2019   February 3, 2019   February 10, 2019   February 17, 2019   February 24, 2019   March 10, 2019   March 17, 2019   March 24, 2019   April 7, 2019   April 14, 2019   April 21, 2019   April 28, 2019   May 5, 2019   May 12, 2019   June 2, 2019   June 9, 2019  

This page is powered by Blogger. Isn't yours?

Subscribe to Posts [Atom]