Asteroid 324 Bamberga at opposition in September 2013.
Being one of the largest known asteroids, with a diameter of about 255 km, its magnitude however varies greatly due to a very high orbital eccentricity.
It is brightest on September 13, at magnitude +8.1, after which it fades again beyond visibility in amateur telescopes. It takes 22 years before it reappears at this magnitude.
It makes a close approach of about 0.78 AU at perihelion, no other asteroid so large gets so close.
The asteroid was discovered in 1892 and is named after the German city Bamberg.
The animated GIF which can be viewed below shows the movement in the sky of this asteroid during the period of just 2 days (Sep. 03 and Sep 04, 2013).
Pressing one of the highlighted buttons will open a new window with an other size or version of the image above.
|Maximum size:||1200 x 900px – Animated GIF|
Click on the different tabs shown below to view the corresponding object, image and equipment information.
The last tab is used for any comments regarding the image, focus, framing, conditions etc.
|Apparent magnitude||:||12 to 8.1|
|Distance||:||1.77 – 3.59 AU|
|Orbital period||:||4.4 yr|
|Image date||:||Sep. 03 & 04, 2013|
|Light frames||:||5x 3 min x 2. Ha unbinned|
|Total integration||:||2x 15 min|
|Dark frames||:||5x unbinned|
|Flat frames||:||20x unbinned
Created with an A3 size Posterpoweruk flatfield panel
|Software used||:||CCDOps, CCDSoft, ImagesPlus, Photoshop CS4|
|Processing||:||CCDOPS was used for focussing. Image Acquisition was done using CCDSoft.
All separate frames were calibrated, aligned and stacked in ImagesPlus 2.8.
Photoshop CS4 was used for further processing – curves adjustment, levels adjustment, etc.
|Corrector||:||Televue 2″ TRF 2008 flattener/reducer with 15% decrease focal length: 384mm f/4.8|
|Guide camera||:||Atik 1HS Mono|
|Guide scope||:||Vixen VMC110L|
|Autoguide software||:||PHD Guiding|
|Filters||:||Baader 2″ 7nm Ha + IDAS LPS-P2|
|Location||:||Landgraaf, The Netherlands|
|Comment||:||Not one of the best images due to noise issues, but it clearly shows the movement of the asteroid during these 2 days|
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