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About Ouroboros

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    Sub Dwarf

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    South Oxfordshire & North Cornwall Coast
  1. I doubt its going to happen here either. The BBC forecast and Clear Outside agree, so I think I'm unlikely to see it.
  2. Ouroboros

    NGC2264 Cone Nebula and Fox Fur

    Absolutely fantastic image. As PhotoGav says, it has a 3D quality about it. Most of us can only imagine obtaining an image like that, let alone get enough clear skies in the UK!
  3. Ouroboros

    My (rubbish) first image of Orion

    I think the bathroom light adds ethereal mystery to the shot which makes it more interesting. I suggest make a feature of it by including it in the picture. You might frame the image differently by chopping off the right hand side. ie .... PS Apologies for taking liberties with your photograph.
  4. Ouroboros

    Quick M42

    Thanks. I was pleasantly surprised. There's obviously a lot wrong with the image. There was quite a lot banding after calibration. Applying the Canon banding utility made it worse unless applied very subtly. As I say the core is over exposed, and there's not enough contrast in the main body of the M42 nebula. It's probably not worth spending any more time on really. This is one of the first times I have experimented with photometric colour calibration. I've done no other colour manipulation on the image. But to my eye it looks like a reasonable balance. The red is rather subdued, but then it is an unmodded camera so maybe that's to be expected.
  5. Ouroboros

    Quick M42

    I only really managed one night out imaging over the Christmas break and that was on 27 December - a night with poor seeing just before a 64% Moon rose at 10:40pm to wash everything out. I thought I'd use the data to practise my PI skills, or rather lack of them. This is the result of 55 minute total exposure made up of 11x5 minute ISO400 subs. I had to throw 7 subs away for various reasons. Calibrated and processed in Pixinsight, followed by a slight tweak in photoshop. SW ED80 telescope and Canon 450D unmodded DSLR on a guided AZ-EQ6 mount. What I've learned from this is how easily the core of M42 is blown out. My question is: to better capture the core is it better to gather some data at a lower ISO setting, 200 say, or reduce the exposure? I'm guessing the latter.
  6. Ouroboros

    Hello from South Oxfordshire

    Errrr ... yep, sorry about that. And Reading. I was thinking of societies I personally know about. Other clubs are available.
  7. Ouroboros

    Hello from South Oxfordshire

    Hello Jack. Welcome to the forum. If you want to meet and learn from other amateur astronomers there are a couple of good astronomical societies in our area: Abingdon and Newbury.
  8. Ouroboros

    USB hub....

    I use a 4 socket powered hub attached to the mount too. The problem I've had with this arrangement is cables getting moved, the plug moving in the USB socket, and the device disconnecting, which can be a real pain. Sometimes I've had to reboot the computer to get things working again. A workaround solution I've found is to cable tie the cables to the mount so that no stress is put on the USB plug at the hub.
  9. Ouroboros

    1st clear night

    That's lovely. Amazing for only 4 minutes - if I understand your post correctly. Were the other subs so bad?
  10. Brill. It's a bit like learning any skill. At first it seems tricky, then just becomes routine.
  11. OK. Thanks for that info. I was thinking of emailing Warren Keller myself.
  12. @Whirlwind that's interesting. Edit: oh, 31st of December!!! I received a phone call today from the bookshop through which I'm ordering this book. They asked their supplier to find out what the publication status of this 2nd edition was. They have been told that there is an unspecified hold up in the production run. It looks like it might be available as an e-book on the springer site. But I'd rather have a paper copy.
  13. Ouroboros

    Why on earth would I buy a DSLR for astrophotography?

    Would I be right in thinking that a modded DSLR is still one shot colour? In which case it's only fair to compare it with the prices of one shot colour CCDs/CMOS cameras of similar chip size. As already said, these will be more than the £600 budget allows. And going down the mono CCD/CMOS route is more expensive still given the additional costs of filter wheel, filters etc. I agree with the comment that DSLRs are a good entry to astrophotography, potentially for significantly less than £600. In fact they're so good I've never stopped using mine. Nor have I made the transition to CCD/CMOS. But then I'm an occassional imager who finds the essential simplicity, self containedness and reliability of a DSLR as one less thing to worry about when setting up and tearing down on each occassion. Mind you, having said all that, had I not owned a DSLR before starting astrophotography I would probably have spent £1500+ on a mono CMOS + filters system. I don't think there's much point trying to achieve that with a budget of £600. You either bite the bullet and spend a decent amount on a decent camera plus accessories, or go for a cheaper DSLR which will provide a hugely enjoyable learning experience and decent imaging for a fraction of the cost.
  14. Great! Let us know how it goes.
  15. Horses for courses I suppose. I tried the handset polar alignment on several occasions and it's always been a frustrating waste of time. The method is probably fine so it's probably me not understanding or following the procedure correctly. As I say, I now use the polar alignment method using polar scope and EQMOD which always gets it polar aligned close enough for guiding to get rid of any star trailing. It's what works for you that's important I suppose.

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