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Found 6 results

  1. The Cocoon Nebula (IC5146) is located in Cygnus and is both a reflection and emission nebula. It's about 4000 light years away and spans 15 light years. The emission nebula, consisting of glowing hydrogen gas appears red whilst the reflection nebula appears blue. It also contains an open cluster of young stars which includes the bright star seen at the centre of the nebula, below. This LRGB image image has an Ha blend into the red channel and was taken with my Esprit 150. It represents an integration time of about 27 hours. I hope you like it ! Alan LIGHTS: L:13, R:13, G:12,B:9, x 600s Ha: 39 x 1800s. DARKS: 30, FLATS:40, BIAS:100 all at -20C.
  2. From the album: Deep Sky III

    The Cocoon Nebula (IC5146) is located in Cygnus and is both a reflection and emission nebula. It's about 4000 light years away and spans 15 light years. The emission nebula, consisting of glowing hydrogen gas appears red whilst the reflection nebula appears blue. It also contains an open cluster of young stars which includes the bright star seen at the centre of the nebula, below. This LRGB image image has an Ha blend into the red channel and was taken with my Esprit 150. It represents an integration time of about 27 hours.
  3. The image below illustrates what happens when two spiral galaxies crash into one another..... They are now somewhat less spiral shaped than before the crunch and you can also see the debris trail between them. Apparently, they are now heading away from each other. The larger galaxy is NGC4490 (aka the Cocoon Galaxy) and the smaller one NGC4485. Whilst this is an LRGB image, I was quite pleased to see some Ha regions clearly visible. The image represents just over 12 hours integration time and was taken with my Esprit 150. Alan LIGHTS: L:13, R:19, G:20, B:21 x 600s, BIAS:100, DARKS:30, FLATS:40 all at -20C.
  4. 1st pic from me for a long time and still not finished. I remembered I shot 4 Ha subs last July so decided to continue the project last month. The data was gathered over 4 nights but a lot had to be ditched because of high cloud. I chopped and changed the guide star which means that the different sub sets are rotated differently. I need more colour data to sort out the background so it's still a WIP. Scope: 10" LX200ACF with reducer giving F7 Camera: QSI 532 wsg with SX active optics Baader Ha and RGB filters Subs: Ha 12x30mins unbinned, RGB each 10x3mins binned x2 Captured, calibrated and combined in Maxim. Finished in PS. Very interesting to process with the interweaving emission, reflection and dark nebulosity. The Ha was used as the luminence with a bit of blue added for the brighter area of reflection top left. I need some clear moonless nights to try and get more of the dimmer stuff in the background.
  5. Hello, This Saturday managed to gather some photons before the Moon rise. Here is my rendition of the Cocoon nebula. Equipment - MN190 + 550D + EM200, APT + PHD Details - 13 x 7min + 1 x 6min = 1h 37min, no darks - only dithering Hope you like it
  6. are these two difficult to view, dark sky a must ? id not heard of the egg nebula until i come across it in my atlas tonight,i believe its something like a mag 14 or so. and ive not tried the cocoon either .
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