Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: The Thing on Apr 13, 2014, 21:37:06

Title: Mars Again: Beckenham 12/04/14 21:17
Post by: The Thing on Apr 13, 2014, 21:37:06
Had another go at Mars last night, this was quite early so altitude was only around 20 degrees. The extra magnification did a good job.
LX90 8" at f40, Phillips SPC900NC, Revelation UV/IR, Ostara Skyglow/Moon filter, Firecapture, Autostakkert and Registax.

(http://iloapp.dewityourself.co.uk/data/_gallery/public/0/139742101774826600_resized.png)
Title: Re: Mars Again: Beckenham 12/04/14 21:17
Post by: Fay on Apr 13, 2014, 23:01:56
You did very well there Duncan!!!!!
Title: Re: Mars Again: Beckenham 12/04/14 21:17
Post by: Carole on Apr 13, 2014, 23:15:14
That's a big improvement Duncan, and not suffering from the pixellation seen on the earlier one. 
However this one has onion rings, or similar.  I get them too, any-one know what the cause is, it's really annoying?

Some great detail and colour there Duncan.

Carole




Title: Re: Mars Again: Beckenham 12/04/14 21:17
Post by: MarkH on Apr 14, 2014, 06:24:05
Was that 2 x Barlow's Duncan? Quite brave, but excellent result!!
Title: Re: Mars Again: Beckenham 12/04/14 21:17
Post by: MarkS on Apr 14, 2014, 12:01:29
A great result Duncan!  You should be well pleased with that.

Good surface detail there and a nicely defined polar cap.
Title: Re: Mars Again: Beckenham 12/04/14 21:17
Post by: The Thing on Apr 14, 2014, 14:26:53
Thanks everyone. I don't know why the onion rings but obviously wavelet sharpening makes them more pronounced. I might try stacking in Registax or AVIStack and see if it's better.

Quote from: MarkH on Apr 14, 2014, 06:24:05
Was that 2 x Barlow's Duncan? Quite brave, but excellent result!!
2" 2x Moonfish ED stacked with a standard 1.25" 2x Skywatcher that comes with their scopes. I might invest in a quality 4x Barlow or stretch to a Powermate as Saturn will be with us soon!
Title: Re: Mars Again: Beckenham 12/04/14 21:17
Post by: MarkS on Apr 14, 2014, 20:46:38
Quote from: The Thing
I might invest in a quality 4x Barlow or stretch to a Powermate as Saturn will be with us soon!

Powermate is a great idea but don't do it for Saturn - Saturn is a complete waste of time this year unless you get very good seeing. 

Mark
Title: Re: Mars Again: Beckenham 12/04/14 21:17
Post by: Rick on Apr 14, 2014, 21:55:24
Quote from: MarkS on Apr 14, 2014, 20:46:38Saturn is a complete waste of time this year unless you get very good seeing.

...or take your kit on holiday Down Under.
Title: Re: Mars Again: Beckenham 12/04/14 21:17
Post by: MarkS on Apr 15, 2014, 04:48:40
Quote from: Rick
...or take your kit on holiday Down Under.

Of course.  I meant Saturn is not well placed for the UK this year.
Title: Mars Again: Beckenham 14/04/14 22:29:09
Post by: The Thing on Apr 15, 2014, 08:46:13
Same details as last time but I colllimated the scope. What a difference. Hanging two barlows off the back throws out the collimation at the chip a lot. T-thread barlows would be a good idea :)

Mars was directly above the moon and there was a bit of haze high up.

(http://iloapp.dewityourself.co.uk/data/_gallery/public/0/139754684045564700_resized.png)
Title: Re: Mars Again: Beckenham 12/04/14 21:17
Post by: Fay on Apr 15, 2014, 09:33:47
that is really good Duncan
Title: Re: Mars Again: Beckenham 12/04/14 21:17
Post by: mickw on Apr 15, 2014, 11:03:55
QuoteT-thread barlows would be a good idea

Like this ?
http://www.astro-engineering.com/prod/telescope-accessories/barlow/supreme/AC613.html (http://www.astro-engineering.com/prod/telescope-accessories/barlow/supreme/AC613.html)

Good image by the way  :)
Title: Re: Mars Again: Beckenham 12/04/14 21:17
Post by: The Thing on Apr 15, 2014, 11:32:02
 Thanks Mick and Fay.

T thread both ends...
Title: Re: Mars Again: Beckenham 12/04/14 21:17
Post by: mickw on Apr 15, 2014, 11:49:27
QuoteT thread both ends...

This might work

TS adapter (http://www.teleskop-express.de/shop/product_info.php/info/p5389_TS-Red--2--M48-Filtergewinde-auf-T2---M48-aussen-auf-T2-innen.html)
Title: Re: Mars Again: Beckenham 12/04/14 21:17
Post by: Carole on Apr 15, 2014, 14:49:21
Latest version is looking really good Duncan.

Carole
Title: Re: Mars Again: Beckenham 12/04/14 21:17
Post by: MarkH on Apr 15, 2014, 20:54:36
That is excellent Duncan.
Title: Re: Mars Again: Beckenham 12/04/14 21:17
Post by: MarkS on Apr 16, 2014, 14:28:31
Very good indeed!

Mark
Title: Re: Mars Again: Beckenham 12/04/14 21:17
Post by: julian on Apr 16, 2014, 22:17:26
Very nice image Duncan
Title: Re: Mars Again: Beckenham 12/04/14 21:17
Post by: The Thing on Apr 17, 2014, 12:45:53
Thanks Julian, Mark and Carole.

I might try mounting 2 barlow lens assemblies in an extendable t-mount tube I've got in the kit. Just have to work out how to centre them...