Swansea Astronomical Society Blog

Saturday, March 12, 2011

 

Star Party at Swansea Airport Friday March 11th

Despite the fact that the sky was clouded over, the Star Party was a success with quite a large number of visitors. The airport cafe provided good and friendly refreshment services and members of the Swansea Astronomical Society put on displays and discussed astronomy and telescopes with visitors. Below are some photographs from the evening:









Wednesday, March 9, 2011

 

Earthshine at twilight on March 7th

I used a Samsung compact camera with 15x optical zoom, tripod mounted and with a 2s shutter delay to capture 10 images of the crescent Moon in the twilight sky in quick succession. I then resized the images and stacked them in Registax. The stacking removed most of the noise. The dark side of the Moon can be seen clearly to be illuminated by earthshine even in a twilight sky.


Steve Wainwright

Tuesday, March 8, 2011

 

A rich harvest

A variety of cameras and scopes were used to capture this harvest of images spanning Friday's FOG meeting to yesterday

































Keith Davies

 

Orion's Sword

I used a Pentax Kx DSLR in Bulb mode at ISO 1600 at the prime focus of an 80mm f/5.5 refractor to capture images of Orion's sword, of 0.5, 1.0, 1.5, 2.0 and 2.5 min duration. The images were stacked in Deep Sky Stacker. The camera was fitted with a light pollution filter and the scope was autoguided.



M42/43 and the Running Man Nebula were captured in this image.

The autoguiding rig



Steve Wainwright

Monday, March 7, 2011

 

Very Active Regions on the Sun

I used a DMk21 camera in conjunction with a H-alpha PST (in this configuration the lens assembly from a x2 Barlow was fitted to the camera) and a 6", f/5 refractor fitted with a Baader photographic grade solar filter (in this configuration, a Baader Ca K-line filter was attached to the camera). The scopes were mounted on a driven, equatorial mount. Click on an image to get a larger view.

AR1164 in H-alpha light



AR1164 in Ca K-line light



AR1166 in Ca light with a x2 Barlow lens assembly fitted to the camera



AR1166 and AR1169 in Ca light at prime focus



AR1166 and AR1169 in H-alpha light

Steve Wainwright

Sunday, March 6, 2011

 

The Sun and a crescent Moon

I captured images of AR1166 and AR1164 using H-alpha and Ca K-line PSTs
AR6166 in H-alpha light


AR1166 in Ca K-line light


AR1164 in H-alpha light


AR1164 in Ca K-line light


The New Moon was a thin crescent tonight and in conjunction with Jupiter as they set together.
They are captured here with a compact camera.









Steve Wainwright

 

The Plough with an altazimuth mounted Pentax DSLR

A Pentax K-x DSLR was fitted with a 2" light pollution filter via a 52 to 48mm step down ring and then mounted on an altazimuth autotracking Merlin Mount. 22 x 30s exposures were captured at ISO 12800, stacked in Deep Sky Stacker and then the RAW images post processed:
Click on an image to get a larger view.
Cropped image:


Auriga was imaged in the same way:



The Pleiades showed Merope's Nebula in 30s exposures:

Steve Wainwright

 

The Sun on Thursday March 3rd

White light images were taken through an 80mm refractor fitted with a Baader solar filter using a DMK31 camera.

Prime focus:


Through a 3x Barlow:




Keith Davies

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