Jupiter 5th Nov - Fair Seeing

[John Hothersall]

SPX350 F30.4, PGRFlea3, Baader RGB. 5.11.12-1627hrs UT.

Similar night to my first go at Jupiter on 31st average seeing with an all to brief stable period. Used my plug in HDD and got 55fps in 16bit which suprised me as testing indoors gives me 46-48fps usually. I usually image in 8bit but tried the 16bit for once. Missed the GRS as usual, its bottom left although red spot Jnr is there. The blue channel was a little strong hence the blue look to some of the bands.

Regards, John.

[asimov (John)]

Nice work despite the conditions. I took one look here & went back to bed. Bit of ringing on W & E limbs. What's that from?

[Larryp (Laurie)]

Lovely image, John-heaps of detail.

[Shiraz (Ray)]

Nice John. do you think there is any advantage in 16bits? regards Ray

[John Hothersall]

Ringing seems to be from the blue and faint ringing in red and I gave it strong sharpening especially the blue in Regx6. Edges of the disc were wavey sometimes in the stream.

16bits is best for solar prominences with faint material against dark sky, more levels can bring it out. Planetary and lunar all deal with midtones so 8bit gives same results it seems in practice anyway and takes up less space on HDD.

John.

[lepton3 (Ivan)]

Good detailed image John.

Originally Posted by John Hothersall

Ringing seems to be from the blue and faint ringing in red and I gave it strong sharpening especially the blue in Regx6. Edges of the disc were wavey sometimes in the stream.

Yeah, I also get the ringing in the blue channel in wavy seeing, particularly on the darker limb. My only recourse is to reduce the sharpening for blue (and of course wait for better seeing).

-Ivan

[asimov (John)]

As you guys know, I generally use the OSC Imaging source DBK & I get this ringing too (only on the darker limb) however I think it's associated with that 60FPS problem that seems to follow the Imaging Source around like a lost puppy..

[Clayton]

Nice shot John