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Friday December 15th 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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  • Week In Images
    Our week through the lens: 11-15 December 2017
  • Planting oxygen
    When resources are limited, you have to work with what you have – especially in the harsh environment of space. Though the International Space Station is regularly restocked by cargo vessels, like today’s Dragon, self-sufficient spaceflight in the future will require us to recycle and reuse precious resources like oxygen. An experiment on its way […]
  • Tracking aerosols
    The Sentinel-5P satellite sees aerosols from southern California’s fires

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 trail images are beautiful to look at and they are captivating because they make time visible. These images can be [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

  • Soyuz Carrying Expedition 53 Crew Lands in Kazakhstan December 14, 2017
    The Soyuz MS-05 spacecraft is seen as it lands with Expedition 53 Commander Randy Bresnik of NASA and Flight Engineers Paolo Nespoli of ESA (European Space Agency) and Sergey Ryazanskiy of the Russian space agency Roscosmos near the town of Zhezkazgan, Kazakhstan on Thursday, Dec. 14, 2017.
  • The Fault in Our Mars December 13, 2017
    This image from NASA's Mars Reconnaissance Orbiter (MRO) of northern Meridiani Planum shows faults that have disrupted layered deposits.

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  • Mars Mission Sheds Light on Habitability of Distant Planets December 13, 2017
    Insights from NASA's Mars Atmosphere and Volatile Evolution, or MAVEN, mission about the loss of the Red Planet's atmosphere can help scientists understand the habitability of rocky planets orbiting other stars.
  • Spanning Disciplines in the Search for Life Beyond Earth December 13, 2017
    Following a gold rush of exoplanet discovery, the next step in the search for life is determining which of the known exoplanets are proper candidates for life — and for this, a cross-disciplinary approach is essential.

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  • Stellar Nursery Blooms into View December 13, 2017
    The OmegaCAM camera on ESO’s VLT Survey Telescope has captured this glittering view of the stellar nursery called Sharpless 29. Many astronomical phenomena can be seen in this giant image, including cosmic dust and gas clouds that reflect, absorb, and re-emit the light of hot young stars within the nebula.

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  • Günther Hasinger appointed as ESA Director of Science December 14, 2017
    The Council of the European Space Agency announced the appointment of Günther Hasinger as the next Director of Science. He will succeed Alvaro Giménez, who has served in the position since 2011.
  • Mars upside down December 14, 2017
    Which way is up in space? Planets are usually shown with the north pole at the top and the south pole at the bottom. In this remarkable image taken by ESA’s Mars Express, the Red Planet is seen with north at the bottom, and the equator at the top.

RSS Sky & Telescope – Observing

  • This Week’s Sky at a Glance, December 15 – 23
    As the Summer Triangle sinks in the west, Altair is the first of its stars to go. Start by spotting bright Vega in the northwest at nightfall. The brightest star above it is Deneb. Altair is farther to Vega's lower left. The post This Week’s Sky at a Glance, December 15 – 23 appeared first […]
    Alan MacRobert
  • What’s the Thinnest Crescent Moon You Can See?
    A slender Moon is an beautiful and inspiring sight. December and January offer several opportunities to see these exceptional crescents. The post What’s the Thinnest Crescent Moon You Can See? appeared first on Sky & Telescope.
    Bob King
  • Fantastic Year for Geminid Meteor Shower
    Mark the date: December 13th. That's the night the Geminid meteor shower peaks. Highlighted by the return of its parent asteroid 3200 Phaethon, this year's show promises to be one of the best ever. The post Fantastic Year for Geminid Meteor Shower appeared first on Sky & Telescope.
    Bob King

RSS Science Daily

  • Artificial intelligence, NASA data used to discover eighth planet circling distant star
    Our solar system now is tied for most number of planets around a single star, with the recent discovery of an eighth planet circling Kepler-90, a Sun-like star 2,545 light years from Earth. The planet was discovered in data from NASA's Kepler Space Telescope.
  • Dawn of a galactic collision
    A riot of color and light dances through this peculiarly shaped galaxy, NGC 5256. Its smoke-like plumes are flung out in all directions and the bright core illuminates the chaotic regions of gas and dust swirling through the galaxy's center. Its odd structure is due to the fact that this is not one galaxy, but […]