PDA

View Full Version here: : Ngc 246 hoo


Slawomir
17-09-2018, 05:08 PM
Hi all,

After my mixed results with recent galaxy imaging, I thought of trying something new to me. Kind of, because this is my second planetary nebula, the first one being the Helix done a few weeks ago.

This time limited integration with just 9 hours in total. I suppose a larger aperture is needed to split the central double, but other than that I think the image turned out alright.

A crop: https://www.astrobin.com/full/367247/B/

Full Frame: https://cdn.astrobin.com/thumbs/l10r1ioCNdde_16536x16536_kBa99kY8.j pg

Thank you for looking

Suavi

Atmos
17-09-2018, 05:24 PM
Looking pretty good Suavi. This was the first planetary that I attempted imaging a few years ago but my result wasn't anywhere near this good :thumbsup:

Stevec35
17-09-2018, 10:47 PM
A good effort there Suavi. A bit more exposure and it would be even better. You've almost split the central star.

Cheers

Steve

Placidus
18-09-2018, 06:56 AM
Bravo! We reckon you've resolved that central double, not as wide as a barn door, but the horse could get out.

Very nice structure shown, including the faint wispy bits of stuff around 3 or 4 o'clock. :thumbsup::thumbsup::thumbsup:

Geoff45
18-09-2018, 07:02 AM
A lot of detail there for a small telescope, Suavi. Well done.

Slawomir
18-09-2018, 07:32 AM
Thank you Colin. I couldn't find your attempt at it on Astrobin. It's a different target to what I'm used to imaging so it has been fun trying to capture it with my 105.



Thank you Steve. I tried other channels (Sulphur and Nitrogen) and there was hardly any signal, but if I get a chance I may try adding a bit more data.



Thank you Mike and Trish. The separation is only 3.8", which equates to about 3 pixels with my camera/telescope. perhaps shorter than 15-minute exposures would help in splitting them a bit more?



Thank you Geoff. I'm starting to gradually understand the limitations of a small aperture.

strongmanmike
18-09-2018, 07:49 AM
Lovely shot Suavi, great colour and excellent res for a small scope :thumbsup:

Mike

Ryderscope
18-09-2018, 08:09 AM
That’s captured a lot of great detail Suavi. Well done for sure.

Paul Haese
18-09-2018, 03:55 PM
Excellent detail for a small aperture. Really good detail.

Slawomir
18-09-2018, 04:53 PM
Thank you Mike, Rodney and Paul.

Out of curiosity I picked two tightest single 15-minute subs, one in Ha and one in OIII. I think I can call it a split... :)

Not too bad for a 3.8" separation with only 1.18"pp and 105 mm aperture...

Before I will seriously consider a larger aperture, I may need to look at improving guiding even further and capturing more but shorter subs and then selecting only those that have the tightest stars.

strongmanmike
18-09-2018, 04:59 PM
Ok, I think you are splitting stars there Suavi :P

Mike

markas
18-09-2018, 05:21 PM
Very nice result, Suavi:thumbsup::thumbsup:


Mark

codemonkey
18-09-2018, 07:25 PM
Nice one Suavi! Haven't seen too many of this one.

RickS
18-09-2018, 09:32 PM
Great to see you squeezing the best out of your gear, Suavi. That's a very nice image, as always...

Slawomir
19-09-2018, 06:40 PM
Hard to do that with 105mm, but trying nonetheless. I think I am starting to develop an appreciation of fine detail in DSO images...



Glad you like it Mark :)



Thank you Lee. I was curious about this little gem myself.



Thank you Rick. Although there was not much SII signal that I could detect, I suspect there should be some around the outer edge where the shell pushes against the interstellar medium, so I may try capturing SII tonight.

Slawomir
20-09-2018, 05:12 PM
After seeing this (http://www.gemini.edu/node/181) image I thought of trying collecting SII last night.

Sadly, 6.5hours worth of 15-minute subs had hardly any SII signal in it, nontheless I combined whatever little SII I had with Ha and OIII and the result is here: https://www.astrobin.com/full/367738/0/

Thank you for looking

Ross G
20-09-2018, 07:24 PM
Another great capture Suavi.


Nice colours and so much detail.


Ross.

Retrograde
22-09-2018, 11:55 AM
Beautiful image(s) Suavi.
All your recent images look like they have been taken using a much larger aperture scope so bravo!