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MikeODay

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About MikeODay

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    Sub Dwarf

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    www.flickr.com/photos/mike-oday

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  • Gender
    Male
  • Location
    Blue Mountains, Australia

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  1. Thank you very much guys - I am chuffed to see my images included in the wonderful presentation by the ABC.
  2. MikeODay

    Galaxy NGC 4945 in Centaurus

    Thanks Rodd, although with this one, I think I need both more data and to learn how to minimise the stars ( most of which are brighter than the galaxy ) if I am going to really show off the dust lanes and faint detail. Oh, well the moon will go away again soon
  3. MikeODay

    Galaxy NGC 4945 in Centaurus

    It was quite a struggle to pull the galaxy out of the dark! SkySafari says that " NGC 4945 one of the brightest galaxies within the Centaurus A/M83 Group - a large, nearby group of galaxies. The galaxy is the second brightest within the group, after Centaurus A (NGC 5128)" and states its magnitude as 7.91 but I have serious doubts! In Pixinsight, on a scale of 0..1, I can usually see the clouds of nebula etc. by the time a stretch the backround to a value of 0.001 but not this time! At 0.001 heaps of stars were visible but the galaxy was still missing! And these stars, the ones that I could see when the galaxy was still hidden in the gloom, these stars had listed magnitudes of way below 7.9. I will do some checking to see what other sources say about its magnitude.
  4. MikeODay

    Stargazing live 2018 - is it happening

    The ABC in Australia has just published their 2018 "Sky Tour" presentation in support of their Stargazing Live event this week ( http://www.abc.net.au/tv/programs/stargazing-live/ ). The presentation was produced by Genelle Weule and can be found at http://www.abc.net.au/news/2018-05-21/stargazing-live-tour-great-southern-sky/9775660. It includes a narrated presentation by Prof. Fred Watson and includes four of my photos
  5. The ABC in Australia has just published their 2018 "Sky Tour" presentation in support of their Stargazing Live event this week ( http://www.abc.net.au/tv/programs/stargazing-live/ ). The presentation was produced by Genelle Weule and can be found at http://www.abc.net.au/news/2018-05-21/stargazing-live-tour-great-southern-sky/9775660. It includes a narrated presentation by Prof. Fred Watson and includes four of my photos
  6. MikeODay

    Galaxy NGC 4945 in Centaurus

    Thanks guys for you kind comments, they are much appreciated! Cheers Mike
  7. MikeODay

    Galaxy NGC 4945 in Centaurus

    Thanks Steve, much appreciated
  8. Galaxy NGC 4945 in Centaurus Details: Galaxy NGC 4945 in Centaurus 19 May 2018 Orientation: North is up Telescope: Orion Optics CT12 Newtonian ( mirror 300mm, fl 1200mm, f4 ). Corrector: ASA 2" Coma Corrector Quattro 1.175x. Effective Focal Length / Aperture : 1470mm f4.7\ Mount: Skywatcher EQ8 Guiding: TSOAG9 Off-Axis-Guider, Starlight Xpress Lodestar X2, PHD2 Camera: Nikon D5300 (unmodified) (sensor 23.5 x 15.6mm, 6016x4016 3.91um pixels) image Plate Solver script version 5.0 =========== Resolution ........ 0.586 arcsec/px Rotation .......... North is up Focal ............. 1375.43 mm Pixel size ........ 3.91 um Field of view ..... 43' 27.2" x 28' 54.2" Image center ...... RA: 13 04 51.790 Dec: -49 30 37.17 ========== Location: Blue Mountains, Australia Moderate light pollution ( pale green zone on darksitefinder.com map ) Capture ( 19 May 2018 ): 10 sets of sub-images with exposure duration for each set doubling ( 1/2th sec to 240 sec ) all at ISO250. ( 41 x 240sec + ~8 each forthe other durations ) Processing: Calibration: master bias, master flat and master dark Integration in 10 sets HDR combination Pixinsight May 2018
  9. Thanks Paul. The background is quite a bit darker than I like but I had to hide a rather nasty reflection / lens flare artefact caused by the very bright star Theta Carinae ( +2.7 ). If I get chance I will reframe and take some more long exposure subs - hopefully this will move the problem to somewhere else in the image and I will be able to eliminate it by sigma clipping or, as a last resort, by cutting out and replacing the 'damaged' portion of the image.
  10. MikeODay

    NGC5907

    Lovely image - great detail and colours. Well done!
  11. MikeODay

    North America And Pelican HaRgb

    Lovely image Richard; I love the colours and glow of the stars
  12. MikeODay

    IC-410 LRGB Data Set

    Wonderful image Rodd - I love the colours; especially in the central region and in the stars.
  13. Great image Graem, I really like the 3d feel to the image
  14. Also known as the Theta Carinae Cluster, The Southen Pleiades is a very bright open cluster in the Carina constellation. It was discovered by Abbe Lacaille during his visit to South Africa in 1752. Containing around 60 stars, IC 2602 shines with an overall magnitude of 1.9 and its brightest member is Theta Carinae with a visual magnitude of 2.7. This cluster of young blue stars is relatively close to us at "only" 479 light years. 5 May 2018 The Southern Pleiades open star cluster ( IC 2602 ) in Carina ( please click / tap on image to see larger and sharper ) Image details can be found here.
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