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Found 9 results

  1. @Stu, @GavStar and myself met up for a bit of club observing Thursday night… cloudy so good that we met down the pub. Someone (not sure who) pointed out it was clear, so we headed out to stand and chat under clouds with a chill breeze for more than 2hours waiting for the skies to comply with Sat24. Finally we spotted what looked like the edge of the clouds… the others got ready to polar align. OK observing under a near full moon is not ideal.. but it does help with setup and checking your charts! So what to look for… using Gavins new “magic eyepiece” we headed straight for the Horsehead, just visible, the flame slightly more so above. We were using a TEC160 on a goto panther mount, with 55mm plossl and the TNVC adapter to the intensifier, using a 6nm hydrogen alpha filter to “help”. The gain control worked really well to tune the balance of brightness (and noise) vs detail. The “white phosphor” giving a very neutral and “natural” view. Right, where next? Up to the jellyfish ic443, nice gentle curve easily visible, checked on the monkeyhead nearby. We then cruised down to the seagull which filled the view and then tried to ferret out the medusa Nebula… it evaded us this time. Swept over the the pacman, the heart and then the California nebula. The latter as two broad nebulous bands crossing the field of view. We need to try a smaller scope to give a bigger field of view for these really big nebulae. Swapped in a longpass filter and checked on M35 which looked great, M3? and then M81/82, very clear dark lane in the latter.. Clouds finally made a return and we packed up the wrong side of 1am, feet nearly frozen solid. Seemed like many of the streetlights had turned off as well, which is interesting to note. Going to be fun to poke this setup at nebulae when the skies are a little bit more conducive to observing. PeterW
  2. I had another go at a monochrome Ha presentation - I do like it, you can do a lot more with the tones and textures than you can get away with if it was coloured. Mind you, I don't think I've managed to do a properly decent blend of Ha with LRGB yet... What do you think of these ? (looks like a snake about to strike, don't you think ?) 27x600s Ha, darks flats and bias, equipment as per sig, Pixinsight. This tortured vortex of hot gas is a detail from the centre of the Heart Nebula (IC 1805), which lies some 7500 light years away from Earth and is located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. It is an emission nebula showing glowing ionized hydrogen gas and darker dust lanes. This photograph is taken at the wavelength of the glowing hydrogen. The nebula's intense red output and its configuration are driven by the radiation emanating from a small group of stars near the nebula's centre. This open cluster of stars known as Melotte 15 contains a few bright stars nearly 50 times the mass of our Sun, and many more dim stars that are only a fraction of our Sun's mass. And just for fun, here's my first attempt at this target from a few years back (that's not nebulosity in the top corners, it's amp-glow): Hope you enjoy ! Comments and cc welcome, Cheers,
  3. Here is my second submission to the competition. After previously trying to image the Heart Nebula in Broadband it was great to get a chance to have a go in Narrowband. Image details are: Scope: William Optics Star 71 Mount: Celestron AVX Camera: Moravian G2-8300 – Mono Filter: Chroma Ha 3nm 18x1500s exposures (7.5 hours) at -25c 30x Flats & BIAS (SuperBIAS) Imaged over August and October 2017 Processed in PixInsight & Photoshop Thanks for looking.
  4. I thought I would have a go at reprocessing the data from Les Granges. The original is here: https://stargazerslounge.com/topic/280787-heart-nebula-from-les-granges/ To make the exercise worthwhile, I decided I would just use the data that we captured whilst at Les Granges and not add in the additional Ha and RGB that Olly had from a previous time. This allowed me to present the original framing. Every time I add Ha (or OIII) into an image it comes out differently. It is quite different from the earlier effort, I think. This is Olly's dual Takahashi rig over 2 nights: 3 hours of RGB 4 hours 15 mins Luminance 11 hours Ha Total = 18.25 hours
  5. This is looking like the final image from our week at Les Granges. We used the Dual Takahashi rig over 2 nights to capture: 3 hours of RGB 4 hours 15 mins Luminance 11 hours Ha Olly had some previous data which corresponded roughly with our framing so that got 'chucked in' too. That was another 4.5 hours of Ha and another 4 hours (total) of RGB. I make that 26.75 hours...
  6. Hi All, Just after some advice. I have been imaging for about 4 months. I have recently tackled the heart nebula (see below) but have really struggled with detail despite getting 70 x 5min subs, with 50 x darks and 50 x bias. I'm currently using an unmodded canon 70D DSLR with a 80mm APO triplet mounted on a NEQ6. The question is, will getting my camera modded make a significant difference to the image. I am toying with the idea of getting it modded or bite the bullet and buy a cooled CCD camera. Please excuse the over-processing, I'm a total novice when it comes to Photoshop. I'm sure someone more proficient would be able to tease more detail out of the image. Any help/advice/feedback would be greatly appreciated. Thanks. 03.10.2016 heart PS2 600s 6hrs best.tif
  7. peroni

    IC1805 Heart Nebula

    From the album: HEQ5 and Atik 460ex

    My first CCD image My first narrowband image Hubble pallet using Ha, OIII, and SII filters each frame is 20 mins exposure at -10 degs 10 x Ha 14 x OIII 16 x SII
  8. Imd

    Heart Nebula

    From the album: guiding

  9. The Heart Nebula - Ha, Oct/Nov 2012 WIP A mere 14x 600 sec exposures This was never intended to be a 'project' as such - I was using it to Beta test the cameras and software.... As I was using the Ha filter, I just happened upon this target as a rich source of Ha data. Taken on/off over three sessions it occurred to me later to try and process what I had - was pleasantly surprised at the results (despite stretching it to the limits!) Give it another 2-4 hours and it should be quite respectable.... pity that I did not take more care in the framing though over the sessions as I have had to crop the top and more noticeably the left edge, thereby loosing some of the subtle edge detail in the outer wall.... never mind though, two hours in, so might just as well add this to the library of ongoing projects! Takahashi FSQ106-ED + dedicated F/R @f/3.6 SBIG STF8300M + Baader 7nm Ha filter. Guided with SBIG ST-i via ST-80 via MicroProjects Equinox Image (beta test) 'Scopebuggied' Takahashi EM400 mount - controlled via MicroProjects Equinox Pro (all on a 17" MacBook Pro) Preprocessed (Darks and Flat frames), aligned and stacked in Nebulosity 3. Processed in Adobe Photoshop CS5 with 'Noel's Actions' The Heart Nebula, IC 1805, Sh2-190, lies some 7500 light years away from Earth and is located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. This is an emission nebula showing glowing gas and darker dust lanes. The nebula is formed by plasma of ionized hydrogen and free electrons. The very brightest part of this nebula (the knot at the right) is separately classified as NGC 896, because it was the first part of this nebula to be discovered. The nebula's intense red output and its configuration are driven by the radiation emanating from a small group of stars near the nebula's center. This open cluster of stars known as Melotte 15 contains a few bright stars nearly 50 times the mass of our Sun, and many more dim stars that are only a fraction of our Sun's mass. The cluster used to contain a microquasar that was expelled millions of years ago. (Wili) Full Res picture here: http://astrob.in/full/24911/ Thanks for looking as always... Clear skies, Damian
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