Mars Again: Beckenham 12/04/14 21:17

[The Thing]

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.

[Fay]

You did very well there Duncan!!!!!

[Carole]

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

[MarkH]

Was that 2 x Barlow's Duncan? Quite brave, but excellent result!!

[MarkS]

A great result Duncan!  You should be well pleased with that.

Good surface detail there and a nicely defined polar cap.

[The Thing]

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.

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!

[MarkS]

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

[Rick]

Saturn is a complete waste of time this year unless you get very good seeing.

...or take your kit on holiday Down Under.

[MarkS]

...or take your kit on holiday Down Under.

Of course.  I meant Saturn is not well placed for the UK this year.

[The Thing]

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.

[Fay]

that is really good Duncan

[mickw]

T-thread barlows would be a good idea

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

Good image by the way 

[The Thing]

 Thanks Mick and Fay.

T thread both ends...

[mickw]

T thread both ends...

This might work

TS adapter

[Carole]

Latest version is looking really good Duncan.

Carole