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  1. Peter Shah

    The Blue Horse Head Nebula

    The Blue Horse Head Nebula Imaged with the 105 f1.4 Sigma lens and ASI2600MC 60x 300s exposures a total of five hours. Imaged remotely from Spain, processed with Pixinsight and Photoshop. Thanks for looking Peter Shah
    14 points
  2. alis80b

    Markarian's chain

    I am treating this as an 'Astro Processing' lesson and would welcome any tips/advice 😊 I imaged this for the first time on 18th April and was about to delete all of the data (due to some massive light pollution from my fire pit which I didn't realise would affect it 🙈). This is my second attempt at processing it and I have spent hours and hours messing around with it over the past few days!! 😫 With the help of a free 30 day trial of APP and Gradient Xterminator I have managed to save almost the whole image, including the little guys on the far left and right. I'm
    10 points
  3. Chris P.

    M81 - Bode's Galaxy

    Hi everyone - last galaxy for this season before I tear down the rig and get ready the the partial solar eclipse and some milky way targets with the Redcat. Just under 9 hrs of data with the C8\ 183MM combo - cheers
    9 points
  4. bryand

    Rutland Redcat

    Having found a UK supplier (Widescreen) my WO RedCat arrived today, accompanied by the mandatory deluge. Impatient to try it out, and desperate to justify its cost as a daytime lens as well as an astrograph, I took it to Rutland Water to look at the Ospreys. Two of their three eggs have now hatched but the chicks are low down in the nest. The view from the Waderscape hide: The whole scene through the RedCat: A full resolution crop of the scene above: On the whole, a satifactory first outing. The focussing is hypercritical and the ball
    9 points
  5. alis80b

    The Whirlpool Galaxy (M51)

    It's been raining and cloudy here for the past week 😔 It has given me the chance to process the images I took on 9th and 12th April. 180 light frames 54 flat frames 60 bias frames 70 second exposures ISO 800 Sky watcher 80ED Canon Ra
    8 points
  6. Peter Shah

    NGC4501 Coma Berenices

    A change from the wide field stuff....NGC 4501 or M88 in Coma Berenices Imaged remotely from Spain with the RCOS 12.5 RC FLI 16803 and cropped in. Exposure times were 5hrs each in RGB and 4and a half in Luminance. Processed in Photoshop and Pixinsight. Thanks for looking Peter Shah
    7 points
  7. Sunny Phil

    Pleaides (M45)

    The star cluster M45, better known as the Pleiades or Seven Sisters, originally photographed on January 17th 2020. It was taken using a DSLR with 6 images at 2 seconds exposure, ISO 6400 and 300mm focal length.
    4 points
  8. Bottletopburly

    Click lock fitted

    Finally the click lock m54 thread version turned up and mounted on the 200pds, I tried the baader mk3 cc and it clamps solid with a firm grip no play , now using my compression fitting I never really held it tightly and had a few slippage incidents but the click lock is designed to hold baader nosepieces as they have a groove which the baader click lock has been designed to hold onto like a limpet , so hopefully next outing I will try the cc now I have changed to the m48 thread and have a back focus of approx 58mm so hopefully no coma and ota collimated properly.
    3 points
  9. Peter Shah

    Betelguese Light Curve

    great to see this stuff going on ....brilliant
    2 points
  10. Sunny Phil

    Betelguese Light Curve

    Yes ... and the odd nights where I simply forgot to check!
    2 points
  11. Peter Shah

    Pleaides (M45)

    when I was a teenager these driven mounts were very rare ....I made one out of a couple of pieces of wood and a hinge with a screw thread...it works great. Called a barn door tracker.. Very simple and will get you started. https://www.instructables.com/Build-a-Motorized-Barn-Door-Tracker/ not mine just one i found on google
    1 point
  12. Sunny Phil

    Pleaides (M45)

    Unfortunately, I don't have a driven mount. If I go to 2.5 seconds I start to get trailing. One thing I have been experimenting with is reducing the focal length for these types of shots. For example, I have found that the Beehive (M44) shows better this way. I am getting the message that not everything DSLR-related is about 18mm or 300mm. There is a lot of room in between. Maybe a driven mount might be a possibility one day but, at the moment, ready cash is in short supply.
    1 point
  13. Peter Shah

    Pleaides (M45)

    The nebulosity is starting to show after only 12s that shows a lot of potential......I dont know what kit you have (mount) but if you can increase the sub length and do lots more of them it will dramatically improve.
    1 point
  14. Graham

    Pleaides (M45)

    Nice bit of nebulosity showing up there Phil
    1 point
  15. Graham

    NGC4501 Coma Berenices

    Certainly looks like it Peter. 👍
    1 point
  16. Peter Shah

    M81 - Bode's Galaxy

    superb detail in that Chris
    1 point
  17. Peter Shah

    NGC4501 Coma Berenices

    You can get them way cheaper than that now Cmos has made an appearance....it's an amazing sensor though
    1 point
  18. Graham

    M81 - Bode's Galaxy

    Very nice too Chris. You have even managed to split that double as well.
    1 point
  19. Graham

    NGC4501 Coma Berenices

    Been reading up on that camera of yours Peter. Some pretty impressive specs, mind at £12.500 + they would want to be.
    1 point
  20. RonC

    Gradients again!

    Last night I imaged M51 and Binned 2x2 and got a gradient in the LH Corner. Then I imaged M13 Binned 1x1 and got no gradients?? Any idea's?? I've asked the question on Altair Astro's FB page as well!
    1 point
  21. RonC

    Gradients again!

    I think with Steve's help I've sorted the gradient problem!! The Flats I used were over exposed so after taking a number of new Flats at different exposures, I think it's now sorted!! M51 - new Flats.
    1 point
  22. Graham

    NGC4501 Coma Berenices

    I must be missing something here Peter. How the heck can you run 600 second subs without over exposing ???? I tried with my QSI .
    1 point
  23. Peter Shah

    Markarian's chain

    Colour balance is tricky....there are two elements to colour balancing. There is the colour Bias which is controlled by the black point in the channel then Balance which is based around the actual signal. Understanding this will make it much easier.
    1 point
  24. Graham

    NGC4501 Coma Berenices

    Great image Peter. What exposure times and binning per sub were you running on this.
    1 point
  25. RonC

    NGC4501 Coma Berenices

    Another great image Peter!! 👍
    1 point
  26. BAZ

    Markarian's chain

    You are really getting going with this imaging lark. That's not an easy target either so I think you have done well, I guess the fire didn't help you , but there is time to go back to this and have another go and then I think you'll do it justice.
    1 point
  27. alis80b

    Markarian's chain

    Thank you 😊 Yes I did notice when I did the 'calibrate star colours' thing that it seemed to remove all the colour but I seemed to get a more balanced background? I'm not sure what is better... lack of colour or a better background. Hopefully when I'm a bit more experienced I'll work out how to to both. I did try saturating it a bit but I'm still struggling with the whole colour balance thing. I'll keep practising! 😊
    1 point
  28. Peter Shah

    Markarian's chain

    Thats beautiful....so much going on....I know there isnt much colour in this chain of galaxies but I think the LP tool may have removed some of the colour in the galaxies....even so a lovely shot
    1 point
  29. Clive

    Gradients again!

    Thinking about it, 2x2 binning is effectively increasing the camera sensitivity by x4 and reducing the noise by x2 (ish) so any light pollution will become more visible?
    1 point
  30. alis80b

    The Blue Horse Head Nebula

    Wow!!! 😍
    1 point
  31. Glafnazur

    The Blue Horse Head Nebula

    Another great image Peter I👍
    1 point
  32. Nightspore

    Click lock fitted

    I was contemplating a Baader like that for my SCT.
    1 point
  33. Nightspore

    Click lock fitted

    Looks good.
    1 point
  34. RonC

    Gradients again!

    Not far off what I use but I've made notes on it!
    1 point
  35. Stephen

    The Blue Horse Head Nebula

    What a great image and detail Peter I do not this one
    1 point
  36. Bino-viewer

    The Blue Horse Head Nebula

    Spectaculer Peter 👍🏼 However, i'm not sure about the 'Blue Horse' name ? It looks more like an Irish Terrier dog to me 😀
    1 point
  37. philjay

    The Blue Horse Head Nebula

    Agree Graham, spectacular results from the lens sky combo
    1 point
  38. RonC

    Gradients again!

    Wow, it's getting a bit technical for me. I do save the images to file as I usually adjust them in DSS before saving. If it's clear tonight I will pick a 45-55' subject and use 1x1 and 2x2 binning, perhaps 10 of each, good idea??
    1 point
  39. Ibbo

    Gradients again!

    I have downloaded it converted to 16 bit given it a few levels ( run it through grad x, but don't tell Ron) a couple of curves,3 zaps as a layer to increase saturation a denoise a final levels and a 50% reduction in size Robert is your mothers brother after a 10 min process including trying to do it at 32 bit. The gradient could be your local light polution and it is not that bad in this image.
    1 point
  40. Graham

    The Blue Horse Head Nebula

    That lens and camera combination certainly does the business Peter. Mind those dark skies also help. Very spectacular result .
    1 point
  41. Peter Shah

    The Whirlpool Galaxy (M51)

    lovely work Alison
    1 point
  42. Streetbob

    Betelguese Light Curve

    I did have a try at photo estimates once and yes they were unreliable. I have looked into astrophotometry but haven't actually tried it yet. Though I still plan to.
    1 point
  43. Sunny Phil

    Betelguese Light Curve

    Yes. Many people have written that photographic estimates are unreliable. That makes sense to me, unless one has a widefield monochrome camera.
    1 point
  44. Nightspore

    BST StarGuider 3x Barlow

    In my continuing quest to find a 3x Barlow that meets my particular requirements I may have struck gold. Well, black and gold at least. The ‘BST StarGuider 4-Element 3x Deluxe Apochromatic Barlow’ often retails around £70. Although I got mine twenty quid cheaper, which is slightly ironic. A few years ago I bought the 2x (3-element) version for over £80 from Astroshop. It has ‘Omegon’ written on it, but although I didn’t know it at the time, it was made or distributed by BST. These can now be purchased as a ‘BST StarGuider’ in the UK for nearly half of what I paid. I believe the 2x, 3x and 5x v
    1 point
  45. RonC

    New bits for easier guiding!

    Well it made things a lot easier, finding a good guide star was a doddle!! I also used the new Autofocus in APT, what a great addition! 100% will use that in future!! Ron
    1 point
  46. Clive

    Betelguese Light Curve

    Does it also show the lack of clear nights over that period? ☺
    1 point
  47. Stephen

    NGC6888 - Crescent Nebula in HaO3 - ‘Tis finished!

    Great image Chris
    1 point
  48. RonC

    NGC4565150421_ALLFinishSmall.jpg

    From the album: Ron's Photo's

    1 point
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