So how did my asteroid 4 Vesta imaging problem go? Bear in mind my unique try did not go too properly, regardless of my confidence.
I had a second alternative on the eighth. The sky readability was higher, I may really see Tianguan (zeta tau) and Elnath on the again of the digicam/cellphone display in take a look at photographs (there was plenty of groobling round on the bottom establishing the photographs and a number of other take a look at exposures to get the appropriate patch zoomed in. My Knees don’t like me as I did this on the gravel bike path close to the seaside.
However ultimately I bought Tianguan (zeta tau) and Elnath framed at a great zoom stage (do not ask me what the Zoom is, the Canon IXUS simply offers a zoom bar and the Samsung S24 give a zoom stage however I forgot to file it. Each the IXUS and Samsung had been on a tripod (I’ve a particular adapter to pones for my tripod).
For the purpose and shoot IXUS I took 30 x 1 second frames at ISO 3200 (f/5.6), because the IXUS would not take exposures longer than 1 second (properly it does, however defaults to ISO 50!). I traded noise for sensitivity. I additionally took a darkish body (publicity precisely the identical as the primary photographs however with the lens blocked to account for noise. The frames had been then stacked in Deep Sky Stacker, the stacked output saved (a TIFF file), then publicity adjusted in The GIMP and the TIFF transformed to JPG.
Not like final time 4 Vesta was clearly (if faintly seen). You need to embiggen the pictures above to see Vesta clearly.
For the Samsung S24 I took 10 x 4 second frames at ISO 3200, f/3.4no darkish body although. The frames had been then processed as for the IXUS (stacked in
Deepsky Stacker, the stacked output saved (a TIFF file), then publicity
adjusted in The GIMP and the TIFF transformed to JPG). The result’s significantly better than the one 10 second publicity.
The Samsung S24 is dishonest although, few cameras/telephones have a 200 megapixel digicam. They are going to be nearer to the 20 megapixel IXUS. However the level is that even with an strange digicam cellphone and stacking you possibly can take efficient astrophotos right down to at the least magnitude 8. This opens up a world of sky imaging you did not assume you would entry with easy tools.
How did others go, Properly Brendan bought Vesta on the ninth,
Brenden stacked a sequence in Photoshop. 20 x 5 sec ISO 1600 f/5 42mm on Canon 1000D DSLR on tripod.
Vesta is seen faintly above121 tau and has clearly moved since my photographs on the eighth.
If anybody else has photographs and desires to submit them, let me know.
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| Single 10 second second publicity at ISO 3200 with my Samsung S24 on 3 March, Vesta is simply seen. | Labelled stack of 10x 4 second expsures at ISO 3200 with my Samsung S24 on 8 March. Click on to embiggen. |
In these photographs from 3 and eight mrach you possibly can clearly see the motion of Vesta.
Labels: 4 Vesta, Asteroid, astrophotography, gimp
