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Wednesday October 18th 2017

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Telescopes & more

Positions of Planets

The tables offer monthly positions of the four brightest planets: Venus, Mars, Jupiter and Saturn. Note, that a constellation may not be visible during the night.  Another [Read More]

Observing Tips for Beginners

  Amateur astronomers have to face some challenges with equipment, weather and environment during their stargazing sessions. The tips listed below help to overcome some [Read More]

German Equatorial Mount – Part 2

The first part of this article gave an introduction of German Equatorial Mounts (GEMs) and discussed polar aligment and how it is been done.  This second part of the [Read More]

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  • Space2Health: the hackathon
    What better way to show your love of science than entering a hackathon? Organised by the Merck science and technology company, alongside ESA, the Space2Health hackathon recently attracted a set of talented individuals who crunched numbers in a 24-hour event to find the best solution to one of the set challenges.
  • Testing for Mars
    Human spaceflight and robotic exploration image of the week: Underground excavation
  • Watching Ophelia
    Sentinel-3A took Ophelia’s temperature as the storm moved towards the British Isles

Observing

Top 10 Night Sky Objects for Astronomy Beginners

Your first telescope has just arrived and now you can’t wait to try it out. Trust me, I remember this feeling very well. The universe is calling and it want to be [Read More]

Planets & more

Positions of Planets

The tables offer monthly positions of the four brightest planets: Venus, Mars, Jupiter [Read More]

Mars Express – Scientific Highlights

The following DLR article talks about measurements and scientific experiments performed [Read More]

Mars Northern Polar Region

Mars does not loose any of its attraction, particularly not in view of future manned Mars [Read More]

Astrophotogallery

Astrophoto Gallery

This gallery shows astro-photos made by amateur astronomers.  Clicking the images enlarges them to original size and provides information about the object and how [Read More]

Solar System

The Moons of the Solar System

More Questions Than Answers Think of our solar system, and for most of us the first thing [Read More]

Asteroid Mining

Near Earth Asteroid Itokawa. A likely candidate for future mining opportunities. Credit [Read More]

Positions of Planets

The tables offer monthly positions of the four brightest planets: Venus, Mars, Jupiter [Read More]

Imaging

Astrophotography – Without a Telescope

Astrophotography – Without a Telescope

By Ralph O. Clements When I was invited to write about this subject for Astronomysource.com, I must say I was flattered and a bit flabbergasted too, as I do not consider myself an expert on the subject, nor a writer by any means, but just a guy who likes to go out at night [Read More]

Startrails – Software

Startrails – Software

Star trails, image credit: Ralph Clements Star trail images are beautiful to look at and they are captivating because they [Read More]

Eyepiece Projection

Eyepiece Projection

Eyepiece projection is a great way to take detailed shoots of moon and planets. Photographed objects in these [Read More]

Astro-Imaging for $100

Astro-Imaging for $100

Is is possible to make astro-images with entry level digital point-and-shoot cameras? The answer to that question is a [Read More]

RSS NASA Image of the day

  • Puerto Rico From the Space Station October 17, 2017
    NASA astronaut Joe Acaba photographed Puerto Rico from the cupola of the International Space Station on Oct. 12, 2017. Sharing the image with his followers on social media, he wrote, "Finally a chance to see the beautiful island of Puerto Rico from @Space_Station. Continued thoughts throughout the recovery process."
  • When (Neutron) Stars Collide October 16, 2017
    This illustration shows the hot, dense, expanding cloud of debris stripped from neutron stars just before they collided.

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  • Fire threatens Mount Wilson Observatory October 17, 2017
    Firefighters are battling to keep the 30-acre blaze from reaching the observatory's historic equipment.
  • Astronomers Tally All the Gold in Our Galaxy October 17, 2017
    Before “he went to Jared,” two neutron stars collided. That’s what scientists learned from studying the debris fallout after a cosmic explosion called a kilonova — 1,000 times brighter than a standard nova — which appeared, and was witnessed by astronomers, in earthly skies Aug. 17. For decades, astronomers debated the origins of the heaviest […]
  • LIGO Detects a Neutron Star Merger October 16, 2017
    New LIGO discovery is an astronomer’s dream come true.

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  • Neutron-Star Collision Reveals Origin of Gold, Astronomers Say October 17, 2017
    An international team of astronomers detected the first gravitational waves from merging neutron stars, and found proof they are the source of the universe's heavy elements, including gold and platinum.
  • 3D Printers: A Revolutionary Frontier for Medicine October 17, 2017
    Mission control on earth receives an urgent communication from Mars that an astronaut has fractured his shinbone. Using a handheld scanning device, the crew takes images of his damaged tibia and transmits them to earth.

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  • NASA’s Hubble Studies Source of Gravitational Waves October 17, 2017
    On Aug. 17, 2017, weak ripples in the fabric of space-time known as gravitational waves washed over Earth. Unlike previously detected gravitational waves, these were accompanied by light, allowing astronomerAnchors to pinpoint the source. NASA’s Hubble Space Telescope turned its powerful gaze onto the new beacon.
  • NASA Seeks Information from Potential Funders for Spitzer October 13, 2017
    NASA is seeking information from U.S. parties interested in operating the Spitzer Space Telescope with non-NASA funding after March 2019, when NASA financial support ends.

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  • ESO Telescopes Observe First Light from Gravitational Wave Source October 16, 2017
    ESO’s fleet of telescopes in Chile have detected the first visible counterpart to a gravitational wave source. These historic observations suggest that this unique object is the result of the merger of two neutron stars. The cataclysmic aftermaths of this kind of merger — long-predicted events called kilonovae — disperse heavy elements such as gold […]

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  • Webcam on Mars Express surveys high-altitude clouds October 17, 2017
    An unprecedented catalogue of more than 21 000 images taken by a webcam on ESA’s Mars Express is proving its worth as a science instrument, providing a global survey of unusual high-altitude cloud features on the Red Planet.
  • Integral sees blast travelling with gravitational waves October 16, 2017
    ESA’s Integral satellite recently played a crucial role in discovering the flash of gamma rays linked to the gravitational waves released by the collision of two neutron stars.

RSS Sky & Telescope – Observing

  • This Week’s Sky at a Glance, October 13 – 21
    Want to become an amateur astronomer? First, learn your way around the constellations! They're the key to locating everything fainter and deeper to hunt with binoculars or a telescope. The post This Week’s Sky at a Glance, October 13 – 21 appeared first on Sky & Telescope.
    Alan MacRobert
  • Stellar Splendor: An Extraordinary Encounter
    An extraordinary encounter with the stars: the most peacefully (yet still stirringly) wondrous is the sight of a clear, dark sky filled with stars. The post Stellar Splendor: An Extraordinary Encounter appeared first on Sky & Telescope.
    Fred Schaaf
  • Busy Skies Ahead: Comets, a Supernova, and a Dramatic Regulus Occultation
    What's your pleasure when it comes to observing? Comets? Supernovae? Occultations? Get a sample of each and more in the upcoming week. The post Busy Skies Ahead: Comets, a Supernova, and a Dramatic Regulus Occultation appeared first on Sky & Telescope.
    Bob King

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