58 Galaxies from SX530HS

 CHDK AstroKam, Deep Sky  Comments Off on 58 Galaxies from SX530HS
Mar 222020

I took a shot of the night sky with my SX530HS and submitted it to nova.astrometry.net for analysis. They returned the result within a few minutes, including a copy of the original image with deep sky object labels superimposed. Below is a detail of that image.

Click image to see all 58 galaxies

Pretty good for a point and shoot camera and a great service from http://nova.astrometry.net.

 Posted by at 10:34 am

3D Gravity Simulation

 Uncategorized  Comments Off on 3D Gravity Simulation
Mar 092020
StarryOrbits Test Animation

Video shows massive stars being fired into star clusters and how they interact under gravity alone.

 Posted by at 1:42 pm

SX530HS and Tripod Moon

 CHDK AstroKam, Moon  Comments Off on SX530HS and Tripod Moon
Mar 072020
Click for full size image

The image above was captured using my SX530HS at 50x zoom on a standard tripod. The camera was running a CHDK script which locked it in continuous shooting mode to capture 1400 frames over 17 minutes. All frames were ISO100, f6.5 and 1/250s with autofocus on. I needed to nudge the camera now and then to keep the moon on screen.

Grayscaled and cropped in PIPP, stacked in AS!3 (75% best), wavelets in Registax6 and polished in MS Photos. Not as detailed as my previous 100x shots but much more convenient to capture. I can just pop out when I see a gap in the clouds. Next stop – try same method on the Sun.

And here is another captured in 15 minutes using the method above.

Click for full size image
 Posted by at 3:06 pm

Moon without Telescope

 CHDK AstroKam, Moon  Comments Off on Moon without Telescope
Mar 042020

Below is a shot of the Moon I took with my amazing little Canon SX530HS camera.

Click for full size image

This was made from 400 jpegs shot at 100x zoom, ISO100, 1/160s, f6.5, AF-on which were captured in CHDK AstroKam. PIPP then grayscaled and culled this to 327 images based on brightness which were stacked in AS!3. Wavelets were applied in Registax 6 and final processing in MS Photos.

I also did some captures with jpegs at 50x zoom and 60sec videos at 100x and 200x zoom to discover the best resulting image. Below are crops of each method and I decided that 100x jpegs are the way to go in future.

Best quality single jpeg at 100x zoom
Stacked jpegs at 100x zoom
Stacked jpegs at 50x zoom
Stacked video at 100x zoom
Stacked video at 200x zoom

And here is my latest Moon shot with my SX530HS at 100x zoom.

Click for full size image
 Posted by at 10:40 am

200x Zoom Moon

 CHDK AstroKam, Moon  Comments Off on 200x Zoom Moon
Feb 072020

I just shot this with my Canon SX530HS at 200x zoom.

Click for full size image

15x 60sec video clips captured in CHDK AstroKam, grayscaled in Virtualdub, processed in AviStack, stiched in ICE and inverted in Paint.NET. Focus was a bit off but still not bad for a second hand camera with no scope.

 Posted by at 10:47 am

£10 Camera Tracker – First Light

 CHDK AstroKam, Deep Sky  Comments Off on £10 Camera Tracker – First Light
Jan 132020

I just built an astro camera tracker with bits costing around £10 and tried it out with my Canon SX230HS. It seemed to track very well and here is a shot of Orion made up of 35 exposures of 150 seconds stacked together in DSS and processed in StarTools.

Click for full image to check tracking accuracy

 Posted by at 10:17 am

M42 by CHDK AstroKam

 CHDK AstroKam, Deep Sky  Comments Off on M42 by CHDK AstroKam
Dec 232019
M42 by Canon SX530HS

Another shot taken with my £95 SX530HS. Software = CHDK, Astrokam, ASPS, PHD2, DSS, StarTools and Paint.Net.

I am a member of the Powershotters group who asked for some details on how I processed this image. Here is a light image:

Original light image. 180sec, 1600ISO, full aperture, 50x optical zoom.

and here is a dark image

Dark image

The 48 light and 15 dark images were stacked in Deep Sky Stacker along with 25 flats and 15 offsets to produce the FITS image below. This was then processed in StarTools to give the final result above.

FITS result in Deep Sky Stacker
 Posted by at 9:28 am

AstroKam Flame and Horsehead Nebulae

 CHDK AstroKam, Deep Sky  Comments Off on AstroKam Flame and Horsehead Nebulae
Nov 302019

Here is a shot I took with my SX530HS PowerShot at maximum optical zoom. Captured in CHDK AstroKam, guided by PHD2, stacked in Deep Sky Stacker and processed in StarTools and Paint.NET.

Not bad for a second hand camera with no telescope?

 Posted by at 2:50 pm

M42 and M45 by AstroKam

 CHDK AstroKam  Comments Off on M42 and M45 by AstroKam
Nov 182019

Took these using my Canon SX530HS controlled by AstroKam. Other software used: CHDK, PHD2, ASPS, DSS and StarTools.

 Posted by at 1:44 pm

CHDK AstroKam Overnight Test

 CHDK AstroKam  Comments Off on CHDK AstroKam Overnight Test
Sep 242019

I left AstroKam running overnight with my SX530HS recently and it worked great. I had set up an 8 target observing list in Cartes du Ciel and imported it into AstroKam with 60 minutes per target and 300 seconds per exposure. Darks and biases were set at 1 per 5 lights.

AstroKam automatically controlled PHD2 autoguiding and plate solved each target using All Sky Plate Solver to provide spot on aiming.

The next morning I used the sort module to remove any duff shots and satellite trails and then generate Deep Sky Stacker project files. These were then batch processed in DSS and processed in StarTools. Final touchup in Paint.Net and I got the results below.

These were all shot at 25x zoom so I can still zoom in to 50x for more detail.

 Posted by at 2:11 pm