Swansea Astronomical Society Blog

Saturday, January 22, 2011

 

Saturn

An SPC900NC camera was fitted with a 2x Barlow to an 8", f/10 SCT and AVIs of Saturn were captured, processed in Registax, corrected for atmospheric dispersion in Andrew Sprott's AutoCap software:
Nikki Mackin

 

A full afocal Moon

A Casio Exilim compact camera was used handheld, afocally with an Orion 8" Newtonian using autofocus. The first image was taken through a polarising filter:
Click on an image to get a larger view.











A compact camera used afocally with a telescope can produce very pleasing images of the Moon.
Dave Evans

Thursday, January 20, 2011

 

AR1147 in H-alpha and Ca K-line light

A DMK camera was used with a H-alpha and a Ca K-line PST to image The active region AR1147
Ca K-line light


Ca K-line light



H-alpha light


An image exposed to reveal the prominences was combined with an image exposed for the disk using Andrew Sprott's Solar layers program.

Steve Wainwright
 

Jupiter on Jan 18 and 19

On the evenings of January 18th and 19th Jupiter was imaged with a DBK camera and an 11", f/10 SCT

January 18th



January 19th showing a shadow transit of Io




Keith Davies

Tuesday, January 18, 2011

 

Terminator of an almost full Moon and Jupiter's SEB recovering

A Sweex WC067 webcam was placed at the prime focus of a 5", f/10 Maksutov and 3 AVIs were captured of each of 3 regions of the terminator of the 98% full Moon. The AVIs were processed in Registax to produce 3 images which were then stitched together into a mosaic:
Click on the image to get a larger view

This webcam has a very poor and faulty driver that does not properly support any of the possible resolutions. The most reliable resolution is 640 x 480 and that was used here, but even that resolution can crash and the whole system has to be restarted befor there is a chance of regaining control of the camera. I have written to Sweex about the driver for this camera and am awaiting a response.

A Philips SPC880NC/900NC camera fitted with a long nosepiece and the lens assembly of a 2x Barlow was fitted to the 5", f/10 Maksutov. 3 x 1 minute AVIs were captured and stacked in Registax to produce this image:


The GRS can be seen and the SEB seems to be re-appearing gradually.
Steve Wainwright

Monday, January 17, 2011

 

Narrowband images of the Horsehead and Flame nebula region of Orion and two galaxies in Ursa Major

On January 9th An Atik 314L camera was placed at the prime focus of an f/5, 80mm autoguided refractor. Images were captured through three narrowband filters: H-alpha, Sll and Olll. The monochrome images were then combined as false colour images using either H, S, or O as the red, green and blue channels in various combinations: For example HSO means that the H-alpha was the R channel, the Sll was the G channel and Olll was the B channel.
Click on an image to see a larger view.

HSO


SHO

SOH

The very bright star is the left hand star of Orion's belt.

An LRGB image was taken through the same telescope of the two galaxies M81 and M82 in Ursa Major. Considerable structure was shown in the two galaxies:


Nikki Mackin

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