New Image: Sirius and Pup

[sdbodin]

From a couple nights back, Meade 16 LX200 at f10, QHY5L-II color cam, 15ms exposure 80 frames stacked. Horrifically over sharpened to show the faint critter.

Clear skies,
Steve

[Bigzmey]

Nice capture Steve!

[messier 111]

good job , thx .

[Lady Fraktor]

Congratulations, an elusive target.

[Graeme1858]

Nice one Steve.

I tried and failed with this one a couple of weeks ago!

Graeme

[sdbodin]

Thanks for all the comments, just a couple additional notes;

Measured the image and at 0.19 "/pixel the separation works out to 11.3", about right, but no cal on my setup, and with a moving mirror focuser, like all SCTs, focal length hence plate scale varies, so just lucky to be near design spec.

Notes on exposure for others, my guess is that 30ms to 100ms should work with any sensitive modern cmos cam, short is better than long to freeze the seeing. But, I would take a series of exposures and search for the best. Small aperture need more exposure, stars are not affected by f-stop number like nebulae, just the size of the light pipe.

Thanks again,
Steve

[KathyNS]

Nice catch!

[jthommes]

Not often captured. Good catch.