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Friday September 30th 2016

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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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  • Week In Images
    Our week through the lens: 26-30 September 2016
  • Rosetta’s descent
    Closer and closer: image highlights captured during Rosetta’s descent to the comet’s surface
  • Once upon a time...
    On the last day of her mission, Rosetta slowly descends onto the comet, but there is one last surprise in store

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]

Cosmos

Pulsars

 Coming Soon – Stay Tuned Lorem ipsum dolor sit amet, consectetur adipisicing [Read More]

Black Holes

Gravitational distortions caused by a black hole in front of the Large Magellan cloud. [Read More]

Nebulae

Coming Soon – Stay Tuned Lorem ipsum dolor sit amet, consectetur adipisicing elit, [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

  • Space Station's Expandable Habitat September 30, 2016
    The Bigelow Expandable Activity Module (BEAM) is seen attached to the Tranquility module of the International Space Station. BEAM is an is an experimental expandable habitat. Expandable habitats, occasionally described as inflatable habitats, greatly decrease the amount of transport volume for future space missions.
  • Testing the James Webb Space Telescope Pathfinder September 29, 2016
    In this photograph taken on Sept. 1, 2016, the James Webb Space Telescope Pathfinder structure has been configured for the Thermal Pathfinder Test at NASA Johnson Space Center's giant thermal vacuum chamber, called Chamber A. The Pathfinder is a test version of the structure that supports the telescope.

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  • ALMA Catches Stellar Cocoon with Curious Chemistry September 29, 2016
    A hot and dense mass of complex molecules, cocooning a newborn star, has been discovered by a Japanese team of astronomers using ALMA. This unique hot molecular core is the first of its kind to have been detected outside the Milky Way galaxy. It has a very different molecular composition from similar objects in our […]

RSS ESA Space

  • Rosetta’s descent September 30, 2016
    Closer and closer: image highlights captured during Rosetta’s descent to the comet’s surface
  • Once upon a time... September 30, 2016
    On the last day of her mission, Rosetta slowly descends onto the comet, but there is one last surprise in store

RSS Sky & Telescope – Observing

  • This Week’s Sky at a Glance, September 30 – October 8
    Some daily sky events among the ever-changing Moon, planets, stars and constellations, from Sky & Telescope magazine, the essential guide to astronomy. The post This Week’s Sky at a Glance, September 30 – October 8 appeared first on Sky & Telescope.
    Alan MacRobert
  • Tour October’s Sky: Planets in Transition
    This month is your last chance to catch Saturn in the evening sky. But Mars is still hanging around, and Venus is climbing higher each evening. The post Tour October’s Sky: Planets in Transition appeared first on Sky & Telescope.
    Kelly Beatty
  • Mercury Punctuates The False Dawn
    Early risers get a triple treat this week and next: a ravishing dawn Moon, an excellent apparition of Mercury, and a hint of Halloween in the ghostly zodiacal light. The post Mercury Punctuates The False Dawn appeared first on Sky & Telescope.
    Bob King

RSS Science Daily

  • NASA's Fermi finds record-breaking binary in galaxy next door
    Scientists have found the first gamma-ray binary in another galaxy and the most luminous one ever seen. The dual-star system, dubbed LMC P3, contains a massive star and a crushed stellar core that interact to produce a cyclic flood of gamma rays, the highest-energy form of light.
  • Rosetta instrument provided first-ever ultraviolet observations of a comet
    After a two-year orbital tour around comet 67P/Churyumov-Gerasimenko, ESA's Rosetta spacecraft -- carrying the Alice ultraviolet spectrograph -- will end its mission on Sept. 30. Rosetta is the first spacecraft to orbit and escort a comet, and Alice, developed and operated for NASA, is the first instrument to obtain far-ultraviolet observations at a comet.