10 minute widefield

[davefrance]

I'll be the first to admit I hadn't got a clue what to expect last night when I decided to have my first quick look at some of the objects in the south-eastern sky whilst waiting for Pleiades to appear above the trees in the east. I soon realised I did not have much time as they were swiftly decending towards the horizon. I set myself a 10 minute time frame for each object and worked my way up the sky. Obviously, there is nothing earth shattering that is going to make the astro photographers news columns but it has given me an idea of both size and magnitude for future sessions. Hopefully it may also help other first timers.

Details

Camera Non Modded Canon 600D attached directly to ED80 focusser via T-Ring/ 2" Adaptor and 50mm extension. 

All exposures RAW 2 minutes @ ISO800

3-5 frames crudely stacked in DSS no darks, flats or bias. 

Lagoon Nebula M8 (and Trifid Nebula M20)

Trifid Nebula M20

Omega Nebula M17

Star Queen Nebula IC 4703

Wild Duck Cluster M11

A quick diversion over to the east for Andromeda Galaxy M31

and at last Pleiades appeared. (20 x 2 mins exposures)

Thank you for looking.

[tingting44]

wow nice one! looks like you had a fab night!

[RichM63]

They are a, far, far better result than I could have acheived before, but, like my efforts, there seem to be elongated stars.

How do we eliminate the 'tadpoles' when zooming in?

[davefrance]

They are a, far, far better result than I could have acheived before, but, like my efforts, there seem to be elongated stars.

How do we eliminate the 'tadpoles' when zooming in?

They are probably due to the 2 minute unguided exposure, now I know what I'm looking for I will probably reduce for next session and take many more frames + darks etc.

[RichM63]

It's not that they are visible in the images as is, but become apparent when highly zoomed in.

Like a school of tadpoles around a bright star.

In a sense I am seeking advice on how to remove them from the background @800% whilst keeping the brighter stars clean. see example;

[davefrance]

It's not that they are visible in the images as is, but become apparent when highly zoomed in.

Like a school of tadpoles around a bright star.

In a sense I am seeking advice on how to remove them from the background @800% whilst keeping the brighter stars clean.

Think that is one for the experts on here........

[RichM63]

I thought it might be a simple step that in my ignorance I'm missing. (will post over in Processing).

cheers,

Rich

[davefrance]

It's not that they are visible in the images as is, but become apparent when highly zoomed in.

Like a school of tadpoles around a bright star.

In a sense I am seeking advice on how to remove them from the background @800% whilst keeping the brighter stars clean. see example;

Capture.JPG

Isn't that "noise"?

[Coco]

Sometimes these crazy runs of multiple images really give a positive lift, it encourages you to really focus on what you can achieve in one evening on one target ..

Great fun and I hope it inspires others to have a go not worrying about quality but having fun, that's what its all about. If I took it to seriously and obsessive (ahem)  I would have left the hobby to early. Although financially better off