NGC 2903 Old and New Data

[tomato]

While waiting for NGC 4216 and it's spectacular SN to get high enough to image I got 100 minutes on an old favourite, NGC 2903 at the other end of Leo. This was using an ASI178 for Lum and a ASI678C for RGB. This was captured at the native resolution and then combined with some LRGB data from 2020 using ASI178 mono cameras. Combined in APP then down sampled x2 before processing in PI.

Why are the CMOS OSC cameras so much better then their CCD counterparts, better QE and lower read noise I suppose?

PS I never got NGC 4216, the clouds rolled in...

 

[AstroMuni]

Wow. And put together from a collection of diverse sources too ! (Lum, LRGB, RGB )

15 minutes ago, tomato said:

Why are the CMOS OSC cameras so much better then their CCD counterparts, better QE and lower read noise I suppose?

Its like asking why are smartphones so much better than the PCs of old 🙂

Edited January 31 by AstroMuni

[michael.h.f.wilkinson]

Really nice shot of one of my favourite galaxies

[geeklee]

1 hour ago, tomato said:

NGC 2903

That looks great - excellent colour and detail and the faint outer arms have come out really well.