From: Mark Gaffney <markgaffney@mac.com>
Date: January 20, 2009 4:52:05 AM MST
To: Astro_IIDC@yahoogroups.com
Subject: Re: [Astro_IIDC] New file uploaded to Astro_IIDC (thx and AU/AF matter)
That`s OK, no rush!
On 20/01/2009, at 10:00 PM, albe albo wrote:
They ghosted images are the original Saturn images.
I cleaned the doube halo from the final images with a frame subtraction method.
Now i'm not at home so i can' find the images.
I'll do soon.
TTYL
Alberto
From: Mark Gaffney <markgaffney@mac.com>
To: Astro_IIDC@yahoogroups.com
Sent: Tuesday, January 20, 2009 11:52:25 AM
Subject: Re: [Astro_IIDC] New file uploaded to Astro_IIDC (thx and AU/AF matter)
Hi Alberto, That`d be interesting! . My new Flea 2 has an inbuilt IR cut filter I`m pretty sure but I do have a Baader IR cut filter attached to my DBK 21 AF04.AS. Was this image taken at a similar time to the Saturn you posted?
On 20/01/2009, at 9:38 PM, albe albo wrote:
Hi Mark,
the baader filtered files are not online but if you may be interested i will put them as soon as possible.
Alberto
From: Mark Gaffney <markgaffney@ mac.com>
To: Astro_IIDC@yahoogro ups.com
Sent: Tuesday, January 20, 2009 10:34:41 AM
Subject: Re: [Astro_IIDC] New file uploaded to Astro_IIDC (thx and AU/AF matter)
Hi Alberto, I`ve been holding off on Saturn also because it was so close to the full(then waning) moon. Also because my nephews moved my scope whilst I wasn`t looking to play cricket outside our garage! I now have to re-do my polar-alignment, achieved such as it was, painstakingly. Glad my eyes weren`t decieving me with regard to the AU! Where do I see your Baader filter image? Mark.
On 20/01/2009, at 8:09 PM, albe albo wrote:
Thank you Alan and Mark...
luck or serendipity are very important factor.
I waited until that late hour hoping for the Moon but it was impossible to grab in Hi-Res.
Saturn was approx 12° higher than the moon so I pointed it only because I wanted to unleash Astro IIDC to capture some movie after 4 hours waiting!
Serendipity maybe is better definition because i couldn' believe the huge difference of seeing between the Moon and Saturn so i grabbed. :-)
Mark, you are right. A friend of mine explained my mistake.
In my mind the cameras AU and AF model has been swapped for long time.
Now i make huge efforts not to write AU because now i'm used to my mistake!
Please correct me if i'll do it again (Saturn and the moons seems to be AU-free).
If you are interested i have a color version of saturn taken the same night with a DBK (+ baader IRCUT filter).
A question for who is concerned: i have a filter reel mounted on my DMK : Baader- R, G, B, (Empty), IR-PASS.
The Saturn grabbed in IR had a strong GHOST below itself and the RED one has a weaker ghost while G and B seems Ghost freee.
The IR and RED images are not blur or out of focus and the ghost is pretty precise so I could subtract it from the image as i currently do for the "doubled" moon imagery.
Now i'm wondering if the doubled moon imagery too can be cause by such IR-pass or Red filters that i always use for the moon.
Next time i will try the green one (like Alan) even if the loss of light is stronger than with the RED filter.
No one noticed such kind of problem? I could post the enhanced image of each channel separately.
Cheers
Alberto
From: Mark Gaffney <markgaffney@ mac.com>
To: Astro_IIDC@yahoogro ups.com
Sent: Tuesday, January 20, 2009 4:15:18 AM
Subject: Re: [Astro_IIDC] New file uploaded to Astro_IIDC
Nice Saturn Alberto, the LRGB imaging makes quite a difference over my
colour camera. Could you clear up a question that`s been niggling me
since you posted your NGC 6960 shot. You cite the camera as a DMK
31AU03.AS. That`s a USB camera isn`t it, & therefore not controllable
by Astro IIDC? Did you take it on another platform & process it in
Astro IIDC maybe? Mark.
On 20/01/2009, at 4:11 AM, Astro_IIDC@yahoogro ups.com wrote:
>
> Hello,
>
> This email message is a notification to let you know that
> a file has been uploaded to the Files area of the Astro_IIDC
> group.
>
> File : /Planetary/090116- SaturnW5Moons- 1shot.jpg
> Uploaded by : richter1956 <richter1956@ yahoo.com>
> Description : SaturnW5Moons- I was not aware of the moon's position
> (lucky)-Single shot-No composition
>
> You can access this file at the URL:
> http://groups. yahoo.com/ group/Astro_ IIDC/files/ Planetary/ 090116-SaturnW5M oons-1shot. jpg
>
> To learn more about file sharing for your group, please visit:
> http://help. yahoo.com/ l/us/yahoo/ groups/original/ members/web/ index.htmlfiles
>
> Regards,
>
> richter1956 <richter1956@ yahoo.com>
>
>
>
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