Swansea Astronomical Society Blog

Saturday, May 17, 2014

 

Solar astronomy class at Fairwood Airport

Some members of Steve Wainwright's D.A.C.E. Solar Astronomy class did some solar observing on the site of the new Swansea Astronomical Society Observatory at Fairwood Airport. The session involved using solar binoculars, viewing the Sun through an 80mm refractor fitted with a Thousand Oaks visual solar filter, Solar projection, observing the Sun in H-alpha light with a H-alpha PST and imaging the Sun with a bridge camera fitted with a Baader solar filter:
Class members doing solar projection


The solar image produced by the bridge camera during the session. Click on the image to get a larger view:


Steve Wainwright
 

Full Moon last night with a Canon SX270 HS

The Full Moon was imaged with a Canon SX270 HS. Sometimes it is nice to see the Moon in context rather than simply as an astronomical object to image in detail:




Colin Miles
 

The Red Planet

Mars was imaged through a Celestron 11” SCT using a  DBK 21 camera and a 2.5x barlow. 2000 frames were captured and processed in Registax 5. You can just make out white cloud on the left of the image:


Keith Davies

Friday, May 16, 2014

 

97% waning, gibbous Moon

A Panasonic Lumix DMC-FZ72 bridge camera was mounted on a Merlin AZ mount, set to f/5.9, ISO 100, 1/500s exposure and maximum zoom of 60x. 75 images were captured of the 97%, waning, gibbous Moon, 3 at a time in burst mode, and the best 68 stacked in Registax 6. Click on an image to get a larger view:



Steve Wainwright

Thursday, May 15, 2014

 

A spotty sun in white light

A Panasonic Lumix DMC-FZ72 bridge camera, fitted with a Baader solar filter, was mounted on a Merlin auto-tracking mount, set to f/5.9, ISO 100 and 1/2000s exposure and maximum zoom of 60x. Forty five images were captured of the Sun, and the best 41 were stacked in Registax 6. Click on the image to get a larger view:


Steve Wainwright
 

Imaging the Moon afocally with a spotting scope

A Vivitar T027 focus free 12Mp digital camera was attached to a Spotting scope by means of a universal DigiScope adapter:


The assembly was mounted on a Merlin AZ auto-tracking mount.
A single image of the Full Moon was captured:


Steve Wainwright

Wednesday, May 14, 2014

 

Afocal experiments with a cheap camera and a smartphone

On may 13th, a Vivitar T027 focus free 12Mp digital camera was attached to a long eye relief, 15mm eyepiece with a digiscoping mount. The assembly was placed in the focuser of a 127mm Maksutov. A number of overlapping frames were captured and made into a mosaic image of the Moon. Click on the image to get a larger view:

Vivitar T027, £27 on Amazon at the time of writing



A Samsung Note smartphone was clamped in a Universal Digiscope/Cellscope Adapter.



Screenshot


A 25mm eyepiece was used. Two Moon ND filters were stacked and placed at the end of the eyepiece. The ISO was set to 100 and the exposure reduced as much as possible. The assembly was attached to the 127mm Maksutov. A number of images were captured of different features on the Moon. The images all show a circular field of view. The experiment will be repeated with different scopes and different eyepieces:







Steve Wainwright

Monday, May 12, 2014

 

Afocal, 96% waxing, gibbous Moon

A Vivitar T027 focus free 12Mp digital camera was attached to a long eye relief, 15mm eyepiece with a digiscoping mount:


The assembly was then placed in the focuser of an f/5, 80mm refractor, mounted on a Merlin AZ auto-tracking mount. The ISO value was set to 100 and the resolution to maximum. The camera was set to monochrome mode and two, overlapping images were captured. The images were merged to produce the final image which was wavelet processed in Registax 6. Click on the image to get a larger view:


Steve Wainwright
 

92% waxing, gibbous Moon

A Panasonic Lumix DMC-FZ72 bridge camera was mounted on a Merlin AZ mount, set to f/5.9, ISO 100, 1/500s exposure and maximum zoom of 60x. 39 images were captured of the 92%, waxing, gibbous Moon, 3 at a time in burst mode, and the best 35 stacked in Registax 6. Click on an image to get a larger view:



Steve Wainwright

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