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AstroImageJ Demonstration

We had an informal meeting over Christmas where Martin took the members through using AstroImageJ (AIJ) he covered the following…

  • Loading an image
  • analysing stars in an image
  • plate solving an image
  • batch processing images to calibrate them
  •  aligning and stacking images
  • photometry on a sequence of images


Martin Demonstrating AstroImageJ

Final image.


Comet C/2017 T2 20191201 21:49 Simon Dawes

Christmas Imaging Session

About a dozen members used the 16″ telescope over the Christmas period with Keith providing a demonstration of the set-up and use of the new CCD.

The evening ended with cloud relatively early but they did get 10 light frames and below is a stack of these using Astro Pixel Processor.


Image by CMHASD Members. 16″ LX200, total of 360s unfiltered.

Cycle 25 Sun Spots

After checking out spaceweather.com for any astronomy updates yesterday, Honor couldn’t believe the Sun had finally got some sunspots. Being up early anyway to walk her Mum’s dog, she got home and got her ED80 refractor set up on an EQ3 and took some photo’s. 

Meteor Report for November 2019

This is the meteor report for November 2019, by the Crayford Manor House Astronomical Society Dartford. This month we were plagued with poor weather and this is reflected in the low number of meteors captured. In total we observed 139 meteors from 29 different...

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All Sky Cam Project

At a recent society night Keith described how he has built an all-sky camera, mainly from parts he had laying around, the camera is capable of producing a live view of the sky, time laps video summary of the night, can upload the images to a website for public viewing...

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AM or PM for meteor observations?

It is well known that you see fewer meteors before midnight than after. This is explained by the fact that before local midnight Meteors hitting the Earth’s atmosphere must be travelling in the same direction as the Earth, so the relative speed of the meteor to...

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Transit of Mercury, 11th November 2019

Despite the poor weather our members were out in force observing the transit of Mercury across the face of the Sun, something that has to be done carefully to be safe. There were 8 members and 4 visitors at the Observatory with a variety of ‘scopes . Rita...

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Star gazing at Hall Place

It was horizon – horizon cloud last Wednesday for the sold out star gazing event at Hall Place, however we were prepared for this and along with comet making, we held sessions on drawing objects in the night sky and a variety of talks about astronomy. We had...

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Meteor Report for October 2019

In October 2019 we detected a total of 138 meteors associated with 29 different showers.   We observed 18 Orionids, which was the most active shower in October, the brightest being of visual magnitude -2.8, however sporadic meteors dominated our detections....

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