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lukebl last won the day on August 3

lukebl had the most liked content!

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About lukebl

  • Rank
    Red Dwarf

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  • Gender
  • Interests
    Norfolk Astronomer, bread-maker, bug and wine enthusiast. Come to Attleborough. At least it's not Watton.
  • Location
    Central Norfolk-ish somewhere, UK, 52°N 1°E ish
  1. Is this a completely mad idea? It came about whilst idly playing about with Photoshop. One problem with my current obs is that my garage blocks the lower part of my crucial southern view. So I thought 'why not turn the problem into the solution? Put a dome of the roof of the garage'. I could mount the pier onto the dividing wall for stability. Am I completely mad? What about the structural integrity of the roof? And given that I have hardly any money, could it be done cheaply? Perhaps I could do it with something simpler than a dome? Obviously, any heat rising from the cars below could be a problem.
  2. Fortunately, at the moment Magnetic North and True North are almost exactly the same in the UK!
  3. Hi, Does anyone know if these collimators are any good? I've never come across them before. I'm looking for something to simplify the collimation of my Ritchey-Chretien, and this weird thing appears to have been specifically designed for RCs, but useful for all telescopes.
  4. Ha ha! No, just a garage with the NEQ which I picked up relatively cheaply recently, plus an old SW 8" Newt. No-one actually keeps cars in their garages do they? Except the rich!
  5. Hi folks, Just to ease myself into the new astro season, I thought I'd capture Pluto over a couple of nights. Unfortunately, it's so low (transiting at barely 15 degree altitude) that I can't see it from my obs, so I captured these with my new mobile rig consisting of a spare NEQ6 and 200mm Newt. Not the sharpest images, but it's very low down in the murk and I'm a bit out of practice. Despite its distance, it moves at a discernable rate over just a few hours. The brightest star here is about 9th magnitude and Pluto is about mag 14.3. Atik428ex, about 30 x 30 second exposures, plus 15 x 15secs each of RGB binned 2x. Field of view 34.2 x 25.8 arcmin 18th September 2019: 19th September 2019: Images superimposed: Zoomed animation:
  6. 'Reasonably sharp' you say. Pretty awesome, I'd say.
  7. It's all fascinating and exciting stuff, but we're having a hard enough job determining whether or not there's life elswehere in our own solar system. I doubt very much that we'll have much luck with a planet we can't even see 124 light years away!
  8. I get this. Really looking forward to darker evenings so I don't have to wait so long. I'm not a night owl. I think I've picked the wrong hobby but it's too late to change now!
  9. Thanks again! By superimposing the images in the correct orientation and uploading the DSS image again to Astrometry, I've now worked out that the field of view with the corrector is 29.9 x 23.9 arcmin for future reference. I've also determined that the reducer (it's a very cheap one) considerably distorts the field, which is probably why it won't platesolve. Not a problem when you're just measuring the star blinking off and back on, though.
  10. Night of 5th September 2019. Just me and the graves and grasshoppers! Canon 6d. 8mm Samyang @ f/5.6, ISO 1600, 97 x 30 second exposures stacked in Startrails.
  11. Great stuff and thank you! I actually tried to solve it in a similar way in Carte du Ciel, by downloading the DSS image, but just couldn't find a match with my image amongst the mass of stars in the downloaded image. Not knowing the field of view was a big problem. I can work that one out now.
  12. Unfortuantely, I'm not sure! I understand that the sensor is 1/1.8" CMOS (i.e. 7.18 x 5.32mm) and it was captured on a telescope with a 1624 mm focal length. I used a 0.5x rocal reducer, but I don't know the actual resultant effective focal length as I guess that's dependent on the distance between the sensor and the reducer.
  13. Folks, This is a capture of part of the sky using a RunCan Night Astro camera. A very basic low-res CMOS camera, hence the poor quality, but very sensitive and used for recording asteroid occultations. It's part of a sequence captured this morning to record the occultation of a star in Orion by the asteroid Aquitania. I basically slewed the scope to the relevant corordinates of the star (J2000: RA 06h 05m 53.6s, Dec +09° 19' 57.3"), and captured a movie of about 60 seconds around the time of the occultation. However, the starfield doesn't seem to match anything in my Carte du Ciel at those coordinates, and Astrometry.net can't platesolve it. Can any of you clever folks manage to platesolve it for me? This is the basic stacked image with the GPS timestamp: Here it is edited with the timestamp photoshopped out:
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