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** Last updated:

1 May 2008

 THE WEBB DEEP SKY SOCIETY BULLETIN BOARD

Date for your Diary - Webb 2008 AGM.  6th Dec 2008,  Cambridge IoA.  More details will follow in due course.

• Double Star Section Circulars DSSC 1 to 15 are now free in downloadable .pdf format.  Click here to download files.  Beware! Some documents are large files.
• Wolfgang Steinicke's latest book 'Galaxies and How To Observe Them', which has Rich Jakiel as co-author, is now available.  Click here for details.  
• 'The Stargazer of Hardwicke - The Life and Work of Thomas William Webb'   Bob Argyle now has copies of The Stargazer of Hardwicke available for purchase by members at a discount to the published price.   The price, including P&P in all cases, is £13.00 (Pounds) within the UK, €20 (Euro) within Europe and $30.00 (Dollars) in the USA.  For those in the UK and Europe, please contact Bob at the address given on the Committee page.  For those in the USA, contact John Isles at his address on the Committee page.  NB. Bob will deal with requests in other currencies on an individual basis. 
• Want to know if you have a chance of seeing IC443 through your six inch?  By calculating the Apparent Brightness of an object you can at least see if it is worth a try.  Or maybe you want to know the scale of images you have taken through a telescope or camera lens, then you need to know the Plate Scale.  Information supplied courtesy of Paul Whitmarsh. 

• View an extract from the colour version of The Webb Society Star Atlas by Mike Swan. Click here for an overview of the Star Atlas.  For ordering details click the appropriate UK US AUS Price List link.  

• View an extract from Mike Ropelewski's 'A Visual Atlas of Double Stars' for interesting double stars in the constellation of Orion.  For ordering details click the appropriate UK US AUS Price List link.

 DOUBLE STAR NEWS - SIGHTING OF SIRIUS B

• The following information on the sighting of Sirius B has been received from Tofol Tobal from the Observatori Astron`omic del Garraf (OAG) in Spain.

I send you a image of Sirius AB from OAG Observatory, with SC-235mm and web cam TouCam-II. We also observe visually with the SC-235mm - 400x, and pentagonal diafragme, relatively difficult. B very clear, outside the ring diffraction system.

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 PICTURE OF THE MONTH - MAY 2008 **

NGC6164 and NGC6165

(Image courtesy of Steve Crouch)

Catalogue and alternative designations: NGC 6164 and NGC 6165

Type: Bipolar emission nebula

Position: 10 45.1, -59 52

Constellation: Norma

Camera and Telescope: STL11000M and 31.75 cm Ritchey Chretien Focal Ratio F9

Exposure Details: HaRGB 240:75:75:75 all 1x1 with Astrodon filters

Description: This object is often classified as a planetary nebula but the nebulosity is actually material that has been ejected from the 6.7 magnitude Wolf-Rayet star HD 148937. This image clearly shows that the intense winds from this star have actually blown a bubble in the surrounding interstellar hydrogen.

Click here to get the Hydrogen Alpha only

Click here for a full resolution crop