Tarantula Narrow Band

loc46south (Geoffrey) · #1 06-09-2009, 10:38 AM

Hi after 15 months I finally fired up my observatory - at least it wasn't raining but to compensate it was full moon.

To mark the occassion I had to take some sort of image so I took a test image of the Tarantula Nebula with the mottley collection of Narrow Band filters I have accumulated.

Image - http://www.pbase.com/loc46south/image/116912457

My first attempt at narrow Band imaging.

Cheers
Geof Wingham

renormalised (Carl) · #2 06-09-2009, 10:43 AM

Not bad for a test image, Geoff. I'd be happy with that as it is!!

dugnsuz (Doug) · #3 06-09-2009, 11:02 AM

Very nice image Geof - it's got a beautiful dusty, organic flavour to it without the usual 'noise' that typifies this region.
The full size is a cracker too!
Doug

AlexN · #4 06-09-2009, 11:14 AM

Agreed.. Thats a lovely rendition of the ugly old spider..

The nebula appears very very well defined in this shot..

Well done.

loc46south (Geoffrey) · #5 07-09-2009, 06:15 AM

Thanks for taking the time to look and comment - The image is pretty scruffy - it is short on data and has a lot of noise in the darker areas - to get decent signal I will need to double my exposre times.

Cheers

multiweb (Marc) · #6 07-09-2009, 08:02 AM

Wow! Awesome Geoff!

Love the colours you got on that one.

Sure it's not the flame nebula?

Hagar (Doug) · #7 07-09-2009, 08:57 AM

Very Nice Geoffrey, great detail but not sure about the colours but thats just me.

Well done.

loc46south (Geoffrey) · #8 07-09-2009, 09:36 AM

Thanks Marc - it was the colours that prompted me to post it - I really liked the way the colours shaded through and still kept the detail.

Thanks Hagar - The colours are real - more real than you think. It's not a Narrowband image in the Hubble sense - it is more of a Narrow Band RGB. Red was made up of HAlpa and SII which are both in the red band (incidently the SII chanel was very weak) Green was made up of 85% of the OIII band and Blue was made up of HAlpha plus 15% of OIII plus some data from a UV Venus Filter. The RGB Colours were scaled and assembled with a Clear Luminance image. What you see is what came out of the pot, but it's a method that I intend to explore further in the future because it seems to give better stars than the Hubble Pallate.

Cheers

Octane (Humayun) · #9 15-09-2009, 10:32 PM

Geoffrey,

That is really quite stunning. All those thick knots look awesome contrasted against the ribbons of red and gold.

Well done!

Regards,
Humayun

dpastern (Dave Pastern) · #10 15-09-2009, 10:59 PM

Odd with the colours, but I like it. Nice, plenty of detail. I'd be ecstatic with a shot like that!

Dave