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Found 5 results

  1. Update 16th June: I could not wait to tell people that I was just notified that my image of Omega Centauri will be published as a future NASA's Astronomy Picture of the Day ( APOD ) - my first ever I will update the thread when they publish. ................................. A deep look at Omega Centauri ( NGC 5139 ) This image is an attempt to look deeply into the the Omega Centauri globular cluster by using HDR techniques to record as many faint stars as I can whilst retaining colour and detail in the bright stars, including at the core ... ............. Reprocessed to bring out more faint stars and to produce a smother transition between brightness levels. New version ( 12 June 2017 ): Omega Centauri ( NGC 5129 ) ( please click / tap on image to see lager and sharper ) .......... Old version: Omega Centauri ( NGC 5129 ) ( please click / tap on image to see full size and sharper ) Image details: from www.nova.astrometry.net: Size: 58.6 x 39 arcmins, Centre: 13h 26 min 50.4 sec, -47deg 28' 39.1''. Orientation: up is -89.9 East of North ( ie. E^ N> ). Telescope: Orion Optics CT12 Newtonian ( mirror 300mm, fl 1200mm, f4 ). Corrector: ASA 2" Coma Corrector Quattro 1.175x. Effective Focal Length / Aperture : 1410mm f4.7. Mount: Skywatcher AZ Eq6 GT. Guiding: TSOAG9 Off-Axis-Guider, Starlight Xpress Lodestar X2, PHD2 . Camera: Nikon D5300 (unmodified) (sensor 23.5 x 15.6mm, 6016x4016 3.9um pixels). No filter Long Exposure noise reduction off Location:. Blue Mountains, Australia. Moderate light pollution ( pale green zone on darksitefinder.com map ). Capture: 9 sets of sub-images with exposure duration for each set doubling ( 1s to 240s ) all at ISO800. Processing:. Calibration: master bias, master flat and no darks. Integration in 9 sets. HDR combination. Pixinsight May 2017
  2. My image of Omega Centauri ( NGC 5139 ) has been published as the NASA APOD for the 11th of July 2017 https://apod.nasa.gov/apod/ap170711.html Link to full size image on NASA site ( warning quite large - 4620 x 3720 ) Link to discussion of image on asterisk.apod.com ( credit apod.nasa.gov ) ( full size image - 4620 x 3720 ) Link to original post for this image back on the 10th of June
  3. NASA are conducting a survey of amateur astronomers to see what kind of kit we are observing with and what time of the day we use it. It seems they are "making an assessment of the hazard potentially present to the general public as a result of NASA's satellite-based climate science lidar measurements"; this is the wording used in an email sent out by the Royal Astronomical Society. The survey seems fairly straight forwards: https://docs.google.com/forms/d/e/1FAIpQLSclyyQRipQ_14LPSUsaJz51SpYIwzE5p3yftkXzWkwx8oDnnw/viewform?c=0&w=1 I know nothing more about it, sorry, but I'm happy to help NASA. James
  4. Two astronauts are just getting ready for the space walk you can watch it live https://www.pscp.tv/w/1LyxBrwvgLpxN Thought you all might want to watch it
  5. Today, 27th January 2017, is the fiftieth anniversary of the tragic fire in the Apollo 1 space capsule which took the lives of NASA astronauts Ed White, Gus Grissom, and Roger Chaffee. The Apollo program followed on from Project Mercury (1961-3) and Project Gemini (1965-7) and ultimately would successfully put men on the Moon.
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