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Monday December 11th 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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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

  • Retrospective: Moon December 8, 2017
    This false-color image is composed of 15 images taken through three color filters by NASA's Galileo spacecraft as it passed through the Earth-Moon system on Dec. 8, 1992.
  • NASA's Science Aircraft Flies Over Thomas Fire in California December 7, 2017
    During an engineering flight test of the Cloud-Aerosol Multi-Angle Lidar (CAMAL) instrument, a view from NASA Armstrong Flight Research Center’s ER-2 aircraft shows smoke plumes, from roughly 65,000 feet, produced by the Thomas Fire in Ventura County, California, around 1 p.m. PST on Dec. 5th, 2017.

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RSS ESO

  • First Light for ESPRESSO — the Next Generation Planet Hunter December 6, 2017
    The Echelle SPectrograph for Rocky Exoplanet and Stable Spectroscopic Observations (ESPRESSO) has successfully made its first observations. Installed on ESO’s Very Large Telescope (VLT) in Chile, ESPRESSO will search for exoplanets with unprecedented precision by looking at the minuscule changes in the light of their host stars. For the first time ever, an instrument will […]

RSS ESA Space

  • Hot and cold December 8, 2017
    BepiColombo module withstands extreme temperatures in final space simulation
  • Farewell Saturn December 4, 2017
    Space Science Image of the Week: Cassini’s last mosaic of Saturn and its rings

RSS Sky & Telescope – Observing

  • This Week’s Sky at a Glance, December 8 – 16
    Astronomy is an outdoor nature hobby. For an easy constellation guide to the evening sky, use the map in the center of Sky & Telescope magazine. The post This Week’s Sky at a Glance, December 8 – 16 appeared first on Sky & Telescope.
    Alan MacRobert
  • 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
  • This Week’s Sky at a Glance, December 1 – 9
    Now that the Pleiades and Aldebaran are up in due east, can Orion be far behind? Orion's entire iconic figure, formed by its brightest seven stars, takes about an hour and a quarter to cross the horizon below them. The post This Week’s Sky at a Glance, December 1 – 9 appeared first on Sky […]
    Alan MacRobert

RSS Science Daily

  • Galaxy orbits in the local supercluster
    Astronomers have produced the most detailed map ever of the orbits of galaxies in our extended local neighborhood, showing the past motions of almost 1,400 galaxies within 100 million light years of the Milky Way. The team reconstructed the galaxies' motions from 13 billion years in the past to the present day.
  • Black holes' magnetism surprisingly wimpy
    Black holes are famous for their muscle: an intense gravitational pull known to gobble up entire stars and launch streams of matter into space at almost the speed of light. It turns out the reality may not live up to the hype.