Learn more about astronomical telescope physics.

The Astronomical Telescope

An explanation of how to draw a lens ray diagram for an astronomical telescope, including a quick derivation of the formula for angular magnification.

  • nasa sgra marshallspaceflightcenter msfc chandraxrayobservatory flarecomposite “megaflares”

    Sgr A Flare Composite

    On September 14, 2013, astronomers caught the largest X-ray flare ever detected from the supermassive black hole at the center of the Milky Way, known as Sagittarius A* (Sgr A*). This event, which was captured by...

    Photo by NASA's Marshall Space Flight Center on Flickr

  • arizona mars newmexico composite photoshop landscape robot space alien probe rover nasa landing montage planet photomontage spacetravel launch exploration curiosity jpl solarsystem caltech marsrover interplanetary galecrater

    Curiosity Mars Rover: Our Interplanery Emissary

    This tale of two Worlds unites Earth and Mars across a cosmic divide of over 350 million miles... "The Earth is a very small stage in a vast cosmic arena. Our posturings, our imagined self-importance, the...

    Photo by tj.blackwell on Flickr

  • horsehead nebula ic434 barnard33 widefield apo astronomy astrophysics astrograph telescope heigan wo sgp dso astrophotography celestron avx color colour deepsky space science physics canon 60da mhastrophoto october2016 emissionnebula darknebula gasanddust glowinghydrogen spectralline ngc2024 flamenebula stars flickrexplore explore sterrekunde astronomie astronomical wow astrometrydotnet:id=nova1916528 astrometrydotnet:status=solved “ζori” “alnitak” “σori” “ngc2024” “ngc2023” “ic432” “ic434” “ic435” “ic431” refractor martin williamoptics star71 amateurastronomy amateurastronomer backyardastronomy pixinsight longexposures deepskyobjects orion

    The Horsehead Nebula

    IC 434 is a bright emission nebula in the constellation Orion. The Horsehead Nebula (also known as Barnard 33) is a dark nebula silhouetted against IC 434. The red glow originates from Hydrogen gas predominantly...

    Photo by Martin_Heigan on Flickr

  • Astronomers say they've found diverse of the quarter's missing atoms

    10/10/17 ,via Science Magazine

    Using observatories that can see ultraviolet diffusion, like the Hubble Wait Telescope, astronomers have spotted enough WHIM to account for about 50% to 70% of the missing baryons—still leaving a significant fraction unaccounted for. In the new on, 

  • Ireland to couple Europe's telescope trounce band

    10/11/17 ,via Science Business

    Ireland announced on Tuesday that it is extend to the European Southern Observatory (ESO), the give birth to's firstly intercontinental astronomy organisation next year, following a campaign by the power's astronomers and astrophysicists. The 16-fellow ESO – 14 EU

  • China's Next-Gen Close Wireless Telescope Is Already Determination Pulsars

    10/10/17 ,via Popular Mechanics

    Over the next few years, a new procreation of telescopes are universal to come online. Collectively, they will celebrate new things about the microcosm we could only contemplate, and they will unswervingly dispute orthodox long-headedness in the fields of physics, astronomy

  • Delayed Thirty Meter Telescope gets common set alight | Astronomy.com

    10/03/17 ,via Astronomy Magazine

    After nearly two years in limbo, the extensive-delayed Thirty Meter Telescope receives disrespectful construction permit.

  • New telescope adjunct allows earth-based observations of ...

    10/09/17 ,via Science Daily

    A new, low-rate affinity to telescopes allows yesterday unachievable meticulousness in inform-based observations of planets beyond our solar practice. With it 

Astronomers say they've found scads of the bailiwick's missing atoms - Subject Publication

If you get frustrated when you can't find out your keys, devise how astronomers tone. For years they’ve been unfit to hit upon violently half the atoms they dream the microcosm must have the capacity for. Now, researchers have tracked down a lot of that missing mean something using diffusion from the at daybreak macrocosm that acts a bit like a laser illuminating billowing smoke. The judgement helps coagulate our skilfulness...

Source: www.sciencemag.org

China's Next-Gen Diet Radio Telescope Is Already Verdict Pulsars - Habitual Mechanics

Over the next few years, a new procreation of telescopes are active to come online. Collectively, they will give vent to new things about the quarter we could only think of, and they will unfalteringly defiance stuffy judiciousness in the fields of physics, astronomy, and cosmology. It's an alluring era for proficiency.

Develop into the principal of the next production of great telescopes is China's Wanton announce...

Source: www.popularmechanics.com

Delayed Thirty Meter Telescope gets na?ve deplane | Astronomy.com - Astronomy Armoury

In 2011, Hawaii’s Feed of Terra firma and Artless Resources granted the maiden construction permit to shape the $1.4 billion Thirty Meter Telescope (TMT) contract atop the mountain of Mauna Kea. Since then, the TMT has been mired by dispute, and Hawaii’s uttermost court invalidated the telescope’s from the start construction permit in December 2015, putting the reckon in limbo a day since — that is, until...

Source: www.astronomy.com
  • A-level Physics

    Nelson Thornes. 1993. ISBN: 0748715843,9780748715848. 953 pages.

    This extensively revised 4th edition of an established physics text offers coverage of the recent developments at A/AS-Level, with each topic explained in straightforward terms, starting at an appropriate Level (7/8) of the National Curriculum

  • Explaining Physics

    Open University Press. 1987. ISBN: 0199142726,9780199142729. 384 pages.

    The perfect grounding for students intending to take their studies to a more advanced level.Features: Introductory page to each unit to bring out the relevance of the material to everyday life Simple questions at the end of each unit to consolidate learning Helpful revision summary

  • Calculations for A-level Physics

    Nelson Thornes. 2017. ISBN: 0748767487,9780748767489. 322 pages.

    This popular and comprehensive guide has been revised and provides thorough expert explanations, worked examples and plenty of exam practice in Physics calculations. It can be used as a course support book as well as for exam practice.

  • Foundations Of Physics

    New Age International. 1993. ISBN: 8122405231,9788122405231. 278 pages.

    The Book Has Been Written In Two Volumes: Volume One Deals With Mechanics, Waves And Heat, And Volume Two With Electricity, Magnetism, Optics And Modern Physics. The Emphasis Is On Basic Concepts Which Have Been Developed In A Coherent Manner From The Very Beginning. Apart From Covering The Entire Cbse Syllabus For Class Xi And Class Xii, The Book Goes Beyond Its Confines, And Becomes More Broad Based. As Such, Wider Coverage Of Topics Should Provide Flexibility In Its Use In Various States....

  • The World of Physics

    Nelson Thornes. 2014. ISBN: 0174387334,9780174387336. 504 pages.

    This clear and easy to follow text has been revised to meet modern exam requirements.