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安裝中文字典英文字典辭典工具!
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- Blackwater Skies – Page 4 – Astronomy Astro-imaging from East of the . . .
In this post, we’ll get started on the foundations and framework for my roll-off roof back garden observatory In the previous post, I finished building the telescope pier and now it’s time to enclose it The Framework When planning this observatory, I considered a number of construction options Many people buy a wooden, plastic or … Building a Small Imaging Observatory – Foundations
- Blackwater Skies – Astronomy Astro-imaging from East of the Meridian
CED 214 NGC 7822 is an emission nebula and star forming region approximately 2,600 light-years away Acquisition: William Optics GT81, WO Flat 6AIII 0 8x reducer, ZWO ASI1600MM-Cool, Atik EFW2, Astronomik Ha, OIII, SII 1 25″Mount Guiding: Orion ST80, QHY 5, PHD2, Sky-Watcher NEQ6, EQMod, Sequence Generator ProProcessing: PixInsight 1 8Dates: 30th – 31st March 2021, 10th December 2021
- Blackwater Skies – Page 2 – Astronomy Astro-imaging from East of the . . .
The Iris Nebula ( NGC 7023) is a reflection nebula where dust in our galaxy is being illuminated by a hot blue star at the centre of the image It is approximately 1,300 light-years away and six light-years across Acquisition: William Optics GT81, WO Flat 6AIII 0 8x reducer, ZWO ASI1600MM-Cool, Atik EFW2, Astronomik L, R, G, … The Iris Nebula In Cepheus Read More » Aug12020
- Blackwater Skies – Page 7 – Astronomy Astro-imaging from East of the . . .
Questions about the best choice of equipment for astro-imaging come up quite frequently In this first of a series of posts, I will start by explaining the basics of aperture, focal length focal ratios These troublesome topics cause many beginning imagers to jump to mistaken conclusions If you bear with me you’ll find out how … Read More » Mar22014
- Blackwater Skies – Page 8 – Astronomy Astro-imaging from East of the . . .
This is the Andromeda Galaxy, taken 14th 15th September 2013 The image consists of 6 x 30 minute subexposures Read on below for technical details Imaging: Sky-Watcher Evostar 80ED DS-Pro, Canon EOS 500D, Hutech IDAS LPS P2 2″, Sky-Watcher 0 85x, APT Mount: Sky-Watcher NEQ6, AstroTortilla, EQMod Guiding: ST80, QHY5, PHD guiding Processing: PixInsight Dates: Sept 14-15, … The Andromeda
- Blackwater Skies – Page 5 – Astronomy Astro-imaging from East of the . . .
M51 is estimated to be approximately 23 million light years away It is interacting with its smaller companion galaxy, NGC 5195, which is just above and to the left of it in this image To the center right of the image a much more distant galaxy IC4263 can be seen, approximately 144 million light years away … M51 – The Whirlpool Galaxy Read More » Sep142016
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