Dennis I have to agree with you.
Fenrir is one of the faintest moon in the solar system.
What I have as Fenrir #7 is most likely star HD 127187
I also feel that Hyperion is not what I indicated as 1. But there was a set of data that had Hyperion as a faint blur of where you indicated it to be. I will have to reprocess and Post an updated version.
For #6 the only 2 candidates i can see in sky safari pro are Polydeuces and a star TYC 5571-0547-1.
Thanks for your input Dennis.
Johnny
Quote:
Originally Posted by Dennis
Hello, John
A great image and excellent presentation, but I think that it may not be completely accurate? 
I’ve just opened Starry Night Pro Plus 6 and Iapetus is measured at approx. 6 arcmin from Saturn with Titan and Hyperion at approx. 1 arcmin each, which doesn’t fit with your image, so I don’t think that #1 is Hyperion.
For #6, marked as Polydeuces, Helene would be a more suitable candidate as Polydeuces, (Saturn XXXIV) is estimated to be only 2–3 km in diameter and I could not find an on-line estimate of its Apparent Magnitude. I strongly suspect that even Helene at mag 18.69 is beyond the limits of the DMK51 and a better candidate for #6 might be the mag 12.59 star USNO J1430434-120044.
I Goggled Fenrir and its quoted Apparent Magnitude is 25, which is extremely faint and so the object marked #7 is not Fenrir. Just FYI, a few Ice in Space members have managed to image down to around mag 22 with larger ‘scopes, longer exposures and more exotic, cooled ccd cameras.
Anyhow, that’s just the result of a few minutes research, but great effort though, I must have a go at this myself on the next clear night in Brisbane, if we ever get another one this year… 
Cheers
Dennis |