Ganymede, Io and Jupiter

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Ganymede, Io and Jupiter

This topic has 12 replies, 6 voices, and was last updated 22 March 2016 at 19:46 by Neil Wyatt.

Viewing 13 posts - 1 through 13 (of 13 total)

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26 February 2016 at 14:48 #227074
Neil Wyatt
Moderator
@neilwyatt
I have to sneak this one in, it's the result of my first Jupiter session this year, and is my best to date.
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26 February 2016 at 14:48 #34309
Neil Wyatt
Moderator
@neilwyatt
26 February 2016 at 16:24 #227098
jason udall
Participant
@jasonudall57142
Not downing your work.

21 C computer..camera…telescope.
Vs 17C two lens telescope and eye ball..

Suppose the differences are air clarity and “patience”..keep observing until clear

The thrill of resolving a point of light to a disc of light is indescribable.

Edited By jason udall on 26/02/2016 16:24:59
26 February 2016 at 18:48 #227119
MW
Participant
@mw27036
amazing!

Michael W
26 February 2016 at 19:04 #227124
Neil Wyatt
Moderator
@neilwyatt
Posted by jason udall on 26/02/2016 16:24:31:
Not downing your work. 21 C computer..camera…telescope.
Vs 17C two lens telescope and eye ball..

Suppose the differences are air clarity and "patience"..keep observing until clear

The thrill of resolving a point of light to a disc of light is indescribable.

The good bit is I get to do both

> amazing!

Thanks Michael, you should see what other people can get!

The secrets are stacking lots of pictures (that's the best 12% of about 3,000 frames over 3 minutes) and advances in image processing – I invested in a really powerful program called Astra that does deconvolution – the technique developed to correct the badly focused images from Hubble before it was fixed. You fiddle with sliders and things like the faint white storms start appearing on t belts. They aren't artefacts either because I compared this image with a much clearer one taken with a 14" scope at the same time, and it has all the features on my image – plus more!

Neil
26 February 2016 at 19:45 #227132
Martin Cottrell
Participant
@martincottrell21329
A really impressive & beautiful image Neil!

Martin.
26 February 2016 at 20:03 #227138
nigel jones 5
Participant
@nigeljones5
I see one of those naff sand orniments they sell at blackpool and a couple of ink splats…time to go to me shed me thinks! Ignorance, as they say, is bliss….
27 February 2016 at 20:12 #227304
Vic
Participant
@vic
Have you seen the new Pentax Neil. It has an "Astrotracer Function" whatever that is?!

**LINK**
27 February 2016 at 20:43 #227312
Neil Wyatt
Moderator
@neilwyatt
Sounds neat, but I doubt it can follow the stars for very long.

Neil
8 March 2016 at 16:22 #229024
Neil Wyatt
Moderator
@neilwyatt
There was a double transit of Io and Europa last night.

You probably won't be able to pick out Europa just above its shadow, but Io is very easy to spot moving onto the disk.

Neil
8 March 2016 at 19:59 #229057
Vic
Participant
@vic
Posted by Neil Wyatt on 27/02/2016 20:43:59:

Sounds neat, but I doubt it can follow the stars for very long.

Neil

I don't know but do a search, you'll see the system works very well. The Pentax Astrotracer function started with the use of a dedicated GPS module but it's now built into several Pentax DSLR's as standard.
8 March 2016 at 20:59 #229062
Neil Wyatt
Moderator
@neilwyatt
Posted by Vic on 08/03/2016 19:59:13:

Posted by Neil Wyatt on 27/02/2016 20:43:59:

Sounds neat, but I doubt it can follow the stars for very long.

Neil

I don't know but do a search, you'll see the system works very well. The Pentax Astrotracer function started with the use of a dedicated GPS module but it's now built into several Pentax DSLR's as standard.

It is very clever and works by moving the sensor so there must be limit to how far the sensor can move.

This must mean it will struggle at long focal lengths, but I am sure it works well with shorter lenses.

Neil
22 March 2016 at 19:46 #231223
Neil Wyatt
Moderator
@neilwyatt
Some very different shots last night, just with the camera on a normal tripod – Moon & Jupiter in conjunction.

Though I say it myself, well worth right-click –> view then click with the magnifying glass.

Neil
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