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Swansea Astronomical Society Blog

Thursday, September 23, 2021

 

The Moon with a Chromebook, AstroDMx Capture for Chrome OS and an SV305M camera

A Skywatcher Star Discovery 150mm, f/5 Newtonian was mounted on a Star Discovery AZ GOTO mount and an SVBONY SV305M Pro was placed at the Newtonian focus.

The Star Discovery scope and mount used


A Lenovo Chromebook S345 with 4GB RAM and a 64GB eMMC drive and an AMD A6 CPU was used for capturing lunar data. The Chromebook was running Crostini with Linux and had installed all of the software needed to capture and process the data.

AstroDMx Capture for Chrome OS was used for capturing. It should be noted that at the time of writing, the only cameras that will work in Chrome OS are the SVBONY SV305 series of cameras. At this stage we don’t know whether it will become possible to use other makes of camera in Chrome OS like this, or indeed, whether future updates of Chrome OS might break its present capabilities.

AstroDMx Capture for Chrome OS was used to capture 1000-frame SER files of three, overlapping regions of the Moon covering the terminator side of the 98.5% waxing Moon, but not the whole lunar disk.

Click on an image to see a closer view

AstroDMx Capture for Chrome OS capturing a SER file of the Plato/Sinus Iridum region of the Moon.


Final image of the Plato/Sinus Iridum region


Final image of the Copernicus/Kepler region


Final image of the Tycho region


Hugin Panorama Creator was used to align and stitch the three panes of the terminator side of the Moon into a mosaic.


Steve Wainwright and Nicola Mackin

Thursday, September 9, 2021

 

Crazy interstallar rockets; Zoom talk by Dr Julian Onions

Dr Julian Onions talked to the Swansea Astronomical Society via a Zoom Meeting.
He gave a thorough, detailed, fascinating and informative lecture on the many types of rockets, mainly based on present, existing technologies, whereby spacecraft can be propelled through space, some at significant fractions of the speed of light. The lecture ranged from solid fuelled rockets through to theoretical warp drives. The lecture was well attended and was followed by lively discussion.












Howard Davies followed with a short talk on the Noctilucent Clouds he has observed this summer




Chris Bowden then showed a selection of images recently obtained by members of the Swansea Astronomical Society














 


Wednesday, September 8, 2021

 

Milky Way

Milky-way shot taken down at the coastguard Station Rhossili gower taken with my Panasonic z82 Lumix camera. Settings were 60sec and ISO80. 

Chris Playle


Tuesday, September 7, 2021

 

The Sun September 7th

With a CaK PST, a Solarmax II, BF15, H-alpha scope and a DMK  31AU03.AS CCD camera; captured with AstroDMx Capture.

Click on an image to get a closer view

Screenshot of AstroDMx Capture saving a SER file of Ca K-line solar data

Screenshot of AstroDMx Capture saving a SER file of H-alpha solar data


Results

Ca K-line light


H-alpha light


H-alpha plus Ca K-line merged

Steve Wainwright



 

6th September 2021 – Fairwood Observing night

6th September 2021 – Fairwood Observing night

Arrival: 20:00 hrs Departure: 02:00 hrs (7th September)

Present: Howard Davies and Chris Bowden

This was a last minute call for a member’s viewing night which replaced one called for the 7th September in response to changeable weather forecast, so as such attendance was minimal.

Under a moonless sky and with balmy weather, we enjoyed Californian like conditions for our observing which was probably the last opportunity for viewing Jupiter up close and personal, almost three weeks after opposition. 

Click on the image to get a closer view

Chris Bowden


 

Jupiter and Io

An Altair GP-CAM 225C fitted with a x2 Barlow was placed at the focus of a Skymax 127 Maksutov and mounted on a Celestron AVX mount,

AstroDMx Capture for Windows was used to capture a 3 minute SER file at about 60fps.

The best 20% of the frames were stacked in Autostakkert!, wavelet processed in Registax 5.1 and post processed in the Gimp 2.10.



Steve Wainwright and Nicola Mackin

Monday, September 6, 2021

 

The Sun in white light with a bridge camera

Stack of 95, 60 x optical zoom, Panasonic DMC-FZ72 bridge camera images, precisely cropped, Stacked in Autostakkert! and post-processed in the Gimp 2.10. Click on the image to see a larger view. Visible are active regions, AR2863, AR2864, AR2866 and AR2868. The camera was fitted with a Baader solar filter.

These data took about 5 minutes to capture with the bridge camera on a strudy, static tripod, and about half an hour to process them. The is a good way to regularly monitor the Sun.

Click on the image to get a closer view.


Steve Wainwright


Saturday, September 4, 2021

 

Jupiter

Data from August 29th captured with AstroDMx Capture and a ZWO ASI 462MC CMOS camera were processed using PIPP and Winjupos.

Jupiter and Io


2h 25min rotation of Jupiter


Chris Bowden


Wednesday, September 1, 2021

 

The Moon and Jupiter

A Skymax 127 Maksutov was mounted on an AVX mount and an Altair GP_CAM 225C was placed at the focus. For imaging Jupiter the lens from a x2 Barlow was attached to the camera and for imaging the Moon, no Barlow was used.

AstroDMx Capture for Windows was used to capture the data. Stacking was done in Autostakkert!, wavelet processing was done in Registax and post processing was done in the Gimp 2.10.

Click on an image to get a closer view

Jupiter with Io shadow transit


Screenshot of AstroDMx Capture capturing lunar data


Lunar images
The second image of each pair has been chrominance enhanced to reveal variation in the mineralogy of the lunar surface.

Plato, Sinus Iridum region


Herschel, Ptolemaeus region.


Copernicus, Kepler region


Archemedes, Aristillus region


Tycho, Clavius region


Steve Wainwright and Nicola Mackin




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