British Astronomical Association
Supporting amateur astronomers since 1890

Secondary menu

Main menu

BAA Gallery
Image search

29P/SCHWASSMANN-WACHMANN

Image

Expand image

About this observation
Observer
Time of observation
24/05/2011 - 21:40
Like This Image
 0  
Share
CCDimage and observation
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.
BAA Gallery
Image search

81P/Wild

Image

Expand image

About this observation
Observer
Time of observation
24/05/2011 - 21:37
Like This Image
 0  
Share
CCDimage and observation
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.
BAA Gallery
Image search

29P/SCHWASSMANN-WACHMANN

Image

Expand image

About this observation
Observer
Time of observation
24/05/2011 - 21:27
Like This Image
 0  
Share
CCDimage and observation
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.
BAA Gallery
Image search

29P Schwassmann-Wachmann

Image

Expand image

About this observation
Observer
Time of observation
24/05/2011 - 21:19
Like This Image
 0  
Share
CCD image and observation
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.
BAA Gallery
Image search

C/2010X1 Elenin

Image

Expand image

About this observation
Observer
Time of observation
24/05/2011 - 21:11
Like This Image
 0  
Share
CCD image and observation
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.
BAA Gallery
Image search

C/2010X1 Elenin

Image

Expand image

About this observation
Observer
Time of observation
24/05/2011 - 21:06
Like This Image
 0  
Share
CCD image and observation
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.
BAA Gallery
Image search

C/2010X1 Elenin

Image

Expand image

About this observation
Observer
Time of observation
24/05/2011 - 21:05
Like This Image
 0  
Share
CCD IMAGE AND OBSERVATION
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.
BAA Gallery
Image search

C/2010X1 Elenin

Image

Expand image

About this observation
Observer
Time of observation
24/05/2011 - 21:05
Like This Image
 0  
Share
CCD IMAGE AND OBSERVATION
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.
BAA Gallery Picture of the Week
Image search

Atlas and Hercules Craters - Damian Peach

Image

Expand image

About this observation
Observer
Damian Peach
Time of observation
23/05/2011 - 20:45
Like This Image
 0  
Share

Image of the lunar craters Atlas and Hercules taken by Damain Peach on 2011 May 10 at 19:44UT, from Selsey, UK.

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.
BAA Gallery Picture of the Week
Image search

M1 from 2MASS data - Graham Relf

Image

Expand image

About this observation
Observer
Graham Relf
Time of observation
17/05/2011 - 12:00
Like This Image
 0  
Share

Graham writes: I have been pursuing David Boyd's point in his 2010 Presidential Address (in the current Journal) that we amateurs could usefully work on the huge amount of data that is available on the Internet which the professionals do not have time to analyse. The 2-micron all-sky survey (2MASS) was a professional project that ran from 1997 to 2001. Its images are available as FITS files on the Internet for anyone to download and process (go to http://irsa.ipac.caltech.edu/applications/Gator/). 2MASS imaged in 3 wavebands: Johnson H, J and K (respectively centred on 1.25, 1.65 and 2.17 microns) using two 1.3 metre telescopes in USA and Chile. I have used 3 such images of M1, the Crab Nebula, to make a false colour image, treating the H band as red, J as green and K as blue. That is what you see in the left half of this image. (Original files aH_asky_971018n0810185.fits, etc, created on 1997 Oct 18 at 9:14 UT). Compare this with optical photos and you will see that the shape of the nebula is rather different at these infra-red wavelengths. As created, my RGB image had 64 bits per colour channel and I processed it as such to make the version on the right. I did a wide radius unsharp mask by blurring the image and then subtracting a proportion of that blurred version from the original. That had the effect of exaggerating subtle details. It is known that M1 has strong magnetic fields (partly from photography through polarising filters at optical wavelengths) and so I suppose my result probably shows gas looping around the field lines. Maybe no-one has seen this particular view before. M1 has been in the news recently because the Fermi Gamma-ray Space Telescope has detected gamma ray flares from it, which no-one can explain. Who knows what awaits discovery in the vast online repository of unanalysed images? Graham Relf www.grelf.net

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.

Pages

Subscribe to British Astronomical Association RSS