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Thursday September 21st 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]


  • Earth from Space
    Join us Friday, 22 September, at 10:00 CEST for the ‘Earth from Space’ video programme
  • Thar be rovers
    Operations image of the week: The webcam on Mars Express spots the craters where rovers have roved
  • Giant berg on the move
    Until a few days ago, the huge chunk of ice that broke off Antarctica’s ice shelf in July has remained close, buffeting back and forth against the shelf. A68 is now on the move and drifting out to sea


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]


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]


Astrophotography – Without a Telescope

Astrophotography – Without a Telescope

By Ralph O. Clements When I was invited to write about this subject for, 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

  • Suomi NPP Satellite Captures Thermal Image of Hurricane Maria September 20, 2017
    The VIIRS instrument on NASA-NOAA’s Suomi NPP satellite captured a thermal image of Hurricane Maria on Sept. 20 at 2:12 a.m. EDT. The image showed very cold cloud top temperatures in the powerful thunderstorms in Maria’s eyewall. Maria’s eye was just east of the American Virgin Islands, and its northwestern quadrant stretched over Puerto Rico.
  • Northern Lights Over Canada September 19, 2017
    The spectacular aurora borealis, or the “northern lights,” over Canada is sighted from the International Space Station near the highest point of its orbital path. The station’s main solar arrays are seen in the left foreground. This photograph was taken by a member of the Expedition 53 crew aboard the station on Sept. 15, 2017.

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  • Image of the Day September 21, 2017
    The sun shines down on Hurricane Maria in this photo taken by NASA astronaut Randy Bresnik at the International Space Station. Beneath the mammoth storm, it was anything but sunny, as Puerto Rico got pummeled by dangerous winds, heavy rain and floods.
  • Sen. Jim Bridenstine Outlines Challenges He Foresees for NASA September 21, 2017
    The nominee to be the next administrator of NASA says that he believes the agency's top challenges include maintaining "consistency and constancy of purpose" that can support long-term plans, while building up international and commercial relationships.

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  • Ageing Star Blows Off Smoky Bubble September 20, 2017
    Astronomers have used ALMA to capture a strikingly beautiful view of a delicate bubble of expelled material around the exotic red star U Antliae. These observations will help astronomers to better understand how stars evolve during the later stages of their life-cycles.


  • From stars to galaxies September 21, 2017
    Explore stellar nurseries in our Milky Way and other galaxies as viewed through the infrared eye of the Herschel space observatory
  • Herschel moments September 18, 2017
    Space Science Image of the Week: Share your favourite memory of the Herschel space observatory as we celebrate the legacy of this extraordinary mission

RSS Sky & Telescope – Observing

  • How to See and Photograph Geosynchronous Satellites
    Dozens of satellites are busy day and night, beaming your favorite TV and radio programs from more than 35,000 miles away. Here's how to tune into them. The post How to See and Photograph Geosynchronous Satellites appeared first on Sky & Telescope.
    Bob King
  • Interactive Sky Chart (Beta)
    Create a custom, naked-eye map of the whole sky for any place on Earth, at any time of day or night, on any date from 1600 to 2400. The post Interactive Sky Chart (Beta) appeared first on Sky & Telescope.
    The Editors of Sky & Telescope
  • This Week’s Sky at a Glance, September 15 – 23
    Saturn (magnitude +0.4, in Ophiuchus above Scorpius) glows in the south-southwest at dusk. Antares twinkles 13° to Saturn's lower right. The post This Week’s Sky at a Glance, September 15 – 23 appeared first on Sky & Telescope.
    Alan MacRobert

RSS Science Daily

  • Unique type of object discovered in our solar system
    Astronomers have observed the intriguing characteristics of an unusual type of object in the asteroid belt between Mars and Jupiter: two asteroids orbiting each other and exhibiting comet-like features, including a bright coma and a long tail. This is the first known binary asteroid also classified as a comet.
  • New concept of terrestrial planet formation
    Scientists are proposing a new way of understanding the cooling and transfer of heat from terrestrial planetary interiors and how that affects the generation of the volcanic terrains that dominate the rocky planets.