[AZ-Observing] Re: Jupiter (unidentified feature?)
- From: Derrick Lim <antaresv@xxxxxxxxx>
- To: AZ Observing List <az-observing@xxxxxxxxxxxxx>, wooihou <wooihou@xxxxxxxxx>
- Date: Wed, 25 Feb 2015 23:59:33 +0800
Padraig, thank you! I do see your point and I agree its very likely, I do
see now a similar artifact to the left of the meridian. Independent
photographs of similar features will be needed for verification, we are
looking.
Derrick
On Wed, Feb 25, 2015 at 11:11 PM, Padraig Houlahan <pjhmx1@xxxxxxxxx> wrote:
> I think it's entirely likely these are imaging artifacts caused by various
> filters. The bright spot, being close to a dark one, suggests excessive
> contrast or some other such filter. As for the 'scar,' I was able to find a
> similar pattern on the lower left which suggests it is noise and we see
> what we want to see. The aggressive image processing needed to get good
> planetary images will produce artifacts every now and then I think.
>
> PH
>
> Sent from my iPhone
>
> > On Feb 25, 2015, at 2:45 AM, Derrick Lim <antaresv@xxxxxxxxx> wrote:
> >
> > Hello,
> > A friend of mine in Kuala Lumpur, Malaysia imaged Jupiter around 17:06
> UTC
> > (1:06am local Malaysian time) on Feb 22nd and recorded an interesting
> > feature. I've helped him posted his image on spaceweathergallery.com,
> but
> > would also like to see what anyone here thinks of what the feature might
> > be.
> >
> > With words, it looks like a disturbance extending from about 80 degree
> > north latitude to 20 degrees north where it ends in a bright splotch.
> >
> > The photos can be found here:
> >
> >
> http://spaceweathergallery.com/indiv_upload.php?upload_id=109234&PHPSESSID=19ouh96a8ip6ecu4uqtf84sfg1
> >
> > Any help is appreciated. Thank you!
> >
> > Derrick Lim
> >
> >
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