Flaming Star neb / Tadpoles in Ha.

[ChrisLX200]

WIP this - and I haven't yet decided whether to go for full narrow-band or [Ha]LRGB. I think the latter might be better for the Flaming star - the combination of Red emission nebula and Blue reflection nebula look nice together. I would need a clear Moon-less night though - an event in very short supply around here

Full res: http://s970.photobucket.com/user/ChrisLX200/media/Astro - Images G4-16000/lbn795 flaming star Ha ST_zpsqdpd3iu0.jpg.html

ChrisH

 

Edited October 19, 2016 by ChrisLX200

[Davey-T]

Looking good Chris, another of those targets I must revisit now I've got a decent mount 

Dave

[ChrisLX200]

Thanks Dave   I'm just eyeing up whether I can use any of the hi-res data I captured last year with my Atik490EX, Registar stacks OK but balancing the background so it's seamless is more tricky.

ChrisH

[Davey-T]

Suppose I should dig mine out and see if it's any good, so long ago I can't remember which scope I used 

Dave

[PatrickGilliland]

Cracking start whichever you you decide on.  Clear nights, not likely  

Paddy

[swag72]

I like this target and you have certainly done it justice - I look forward to seeing it develop  No pressure. On a personal note, I think it would benefit from a little more contrast especially in the tadpoles.

Edited October 20, 2016 by swag72

[ChrisLX200]

2 hours ago, PatrickGilliland said:

Cracking start whichever you you decide on.  Clear nights, not likely  

Paddy

Thanks PAddy, I have possibilities this weekend looking at the forecast - except that Saturday night there is going to be a 16th birthday party at my house - 25 kids, loud music, etc.   Currently looking for an escape plan..

11 minutes ago, swag72 said:

I like this target and you have certainly done it justice - I look forward to seeing it develop  No pressure. On a personal note, I think it would benefit from a little more contrast especially in the tadpoles.

Thanks Sara, I only have about half the Ha so far and you're right, definitely needs more work to make the tadpoles stand out!

ChrisH

[PatrickGilliland]

27 minutes ago, ChrisLX200 said:

Thanks PAddy, I have possibilities this weekend looking at the forecast - except that Saturday night there is going to be a 16th birthday party at my house - 25 kids, loud music, etc.   Currently looking for an escape plan..

Thanks Sara, I only have about half the Ha so far and you're right, definitely needs more work to make the tadpoles stand out!

ChrisH

I think it would be a show of fatherly trust to head of to the obsy and hide!  That said 25 kids in your house - automation time and a watchful eye may be required.

[ollypenrice]

Well, you know, I thnk you have it!!! Blimey, what do we want from an image???

Olly

[Barry-Wilson]

Excellent Ha image Chris. Look forward to seeing this develop.

[ChrisLX200]

2 hours ago, PatrickGilliland said:

I think it would be a show of fatherly trust to head of to the obsy and hide!  That said 25 kids in your house - automation time and a watchful eye may be required.

Good plan. There's a lock on the inside too

1 hour ago, ollypenrice said:

Well, you know, I thnk you have it!!! Blimey, what do we want from an image???

Olly

Perfection I know I'll never attain it - or even get close - but I will still try regardless!

32 minutes ago, Barry-Wilson said:

Excellent Ha image Chris. Look forward to seeing this develop.

Thanks Barry, it may take some time....

ChrisH

[ollypenrice]

10 minutes ago, ChrisLX200 said:

 

Perfection I know I'll never attain it - or even get close - but I will still try regardless!

 

ChrisH

Sure, this is a good attitude. But you are shooting an Ha layer, here. That only has so much to give. I reckon that the way forward is to think about how to use that layer in a wider and more complex image. That's where you'll really create something special - and I think you will...

Olly

[Rodd]

Nice FOV.  Low noise, sharp details in the bright areas.  Very nice.

[ChrisLX200]

10 hours ago, ollypenrice said:

Sure, this is a good attitude. But you are shooting an Ha layer, here. That only has so much to give. I reckon that the way forward is to think about how to use that layer in a wider and more complex image. That's where you'll really create something special - and I think you will...

Olly

Thanks Olly, I suppose if the Ha merely ends up being added to LRGB then yes, it is probably good enough - but not if it's to a full NB image where it will be providing critical Lum info.

Out of curiosity I compared data I captured last year using my Atik490EX with a crop of this current data using the Moravian G4-16000. All else was the same - scope (focal length), exposure time, care with focussing, similar post-processing (albeit the brightness is not matched, but sharpening and deconvolution were the same), both using 3nM filters (Astrodon and Chroma). The big difference is the image scale - 1.15 arcsec/pxl with Atik490EX compared to 2.8 arcsec/pxl with the Moravian G4-16000. The difference in image detail is remarkable, even though I often quote my local 'seeing' as averaging around the 2 arcsec mark the finer resolution of the small pixel camera is clear to see. Matching image scale to your local 'seeing' conditions may not be taking full advantage of what it's possible to capture. The 490EX image (on right) was reduced by 50% to obtain similar image size..

Pixel-peep at full res if you like: http://s970.photobucket.com/user/ChrisLX200/media/Astro - Images G4-16000/lbn795 flaming star Ha ST_zpsg2lamvyq.png.html

ChrisH

[ollypenrice]

I'm sure you're right. There is no doubt in my mind that you can go on resolving useful detail down to at least an arcsec and probably below that if you have the mount. We often blend TEC data into Tak data because of the coarse pixel scale of the widefield rigs (3.5"PP). The TEC is working at 1.8 and several TECs have been here working at 1.14"PP on the 8300 chip. They are pulling in more fine detail than we do with ours.

Olly