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Julien :ve: 🔭:python:

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  1. Julien :ve: 🔭:python: @jdlbt ·

    I've been thinking about cancelling my Amazon subscription for a while but hadn't yet done it because of the "convenience". It looks like this is what will finally tip the balance and force me to look for more local and ethical sources.

    Of course they say it's unrelated to the recent unionization of one of the Québec warehouses but can we believe them?

    cbc.ca/news/canada/montreal/am

    #amazon #amazonprime #boycotamazon #quebec #amazonquebec #amazonlaborunion
  2. Julien :ve: 🔭:python: @jdlbt ·

    I'm not done with the processing of my Soul Nebula (IC 1848) data but I thought I'd share this little crop from the larger image which has strong "cosmic cliffs" vibes.

    Image: CC BY-NC-SA 4.0

    #astrophotography #astronomy #astrodon #ic1848 #nebula #sho
  3. Julien :ve: 🔭:python: @jdlbt ·

    The Helix Nebula (NGC 7293) is a planetary nebula in the constellation Aquarius. At approximately 655 light-years from Earth, it is one of the closest of the bright planetary nebulae.

    The planetary nebula is formed by the shedding of the outer layers of its central star near the end of its evolution. The energy from the central star causes the expelled gases to fluoresce.

    High resolution image and technical details on Telescopius: telescopius.com/pictures/view/

    Image license: CC BY-NC-SA 4.0.

    #astrophotography #astronomy #photography #astrodon #nebula #planeratynebula
  4. Julien :ve: 🔭:python: @jdlbt ·

    Some nights the guiding is poor, some nights it is good. Tonight it is very good.

    With the RA and Dec curves so flat, I would say it is dead good!

    With a pixel scale of 1.38"/px and assuming a normal distribution, a <0.3" guiding error means that 99.7% of the time (±3𝜎) the total guiding error is less than 1.2 times the size of a pixel on the main camera!

    #astrophotography #guiding #phd2
  5. Julien :ve: 🔭:python: @jdlbt ·

    Sh 2-155, from the Sharpless catalog, also known as the Cave Nebula, is a diffuse nebula in the constellation Cepheus, within a large nebula complex containing emission, reflection and dark nebulae. Sh 2-155 is an ionized H II region with ongoing star formation activity, at an estimated distance of 2400 light-years from Earth.

    Technical details, high resolution and annotated versions available on Telescopius: telescopius.com/pictures/view/

    Image license: CC BY-NC-SA 4.0.

    -155

    #astrophotography #astronomy #photography #astrodon #nebula #deepsky
  6. Julien :ve: 🔭:python: @jdlbt ·

    Here's a quick processing of the broadband RGB data on the Cocoon Nebula (IC 5146) in the constellation Cygnus. Narrow-band Ha data to be added later.

    #astrophotography #astronomy #astrodon #kstars #ekos #phd2
  7. Julien :ve: 🔭:python: @jdlbt ·

    SH 2-119 (from the Sharpless catalog of H II regions), also known as the Clamshell Nebula, is an emission nebula in the constellation Cygnus. It is fainter and not as frequently imaged as its western neighbour, the North America Nebula.

    This image was captured over six nights between July 13 and August 1st. Two different dual narrow-band filters were used to capture the different wavelengths of the sulphur, hydrogen and oxygen emissions.

    Technical details, high resolution and annotated versions available on Telescopius: telescopius.com/pictures/view/

    Image license: CC-BY-NC-SA 4.0.

    -119

    #astrophotography #astronomy #photography #astrodon #nebula #deepsky
  8. Julien :ve: 🔭:python: @jdlbt ·

    The Crescent Nebula (NGC6888) is a cosmic bubble about 25 light-years across, in the constellation Cygnus, blown by winds from its central massive Wolf-Rayet star (WR136).

    This image was captured on July 26 & 28 under quite bad sky conditions; low transparency due to smoke from wild fires in the West combined with Moon illumination.

    Annotated version & technical details on Telescopius: telescopius.com/pictures/view/

    Image license: CC-BY-NC-SA 4.0

    #astrophotography #astronomy #nebula #deepsky #photography #astroberry
  9. Julien :ve: 🔭:python: @jdlbt ·

    The Elephant Trunk Nebula (IC 1396) in the constellation Cepheus in SHO palette.

    This image was captured over three nights with an OSC (RGB) camera and two different dual narrow-band filters (Sulphur + Oxygen and Hydrogen + Oxygen emissions) allowing the SHO palette (Sulphur=Red, Hydrogen=Green and Oxygen=Blue). SHO images are usually captured with a monochrome camera and three separate narrow-band filters, one for each emission line.

    Technical details, high resolution and annotated versions available on Telescopius: telescopius.com/pictures/view/

    Image license: CC-BY-NC-SA 4.0.

    #astrophotography #astronomy #photography #astrodon #nebula #deepsky
  10. Julien :ve: 🔭:python: @jdlbt ·

    The Pelican Nebula (IC 5070) is an emission nebula associated with the North America Nebula in the constellation Cygnus. It is separated from the North America Nebula by a foreground molecular dust cloud.

    Annotated & high quality versions and technical details available on Telescopius: telescopius.com/pictures/view/

    The work on the Newtonian paid off and I'm happy with the results. This was the first time I tried the 150 mm f/5 Newtonian with the Starizona Nexus 0.75x coma corrector/reducer and my older ASI183MC Pro camera. The pixel scale (0.88"/px) with this setup is a good match with the scope's resolution limit and the faster focal ratio of f/3.7 with the reducer helps with the somewhat noisier camera.

    Image license: CC-BY-NC-SA 4.0

    #astrophotography #astronomy #nebula #deepsky #photography #astroberry