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Observatory Parameters
Oct 17
Ashburn
Clouds: Seeing:
Waning Crescent
04:59 17:43
Astronomy Planning Made Easy

What's in your location's Sky Tonight?

  • Planets
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  • Diffuse Nebulaeby: magnitude size rise transit
  • Galaxiesby: magnitude size rise transit
  • Galaxy Clustersby: magnitude size rise transit
  • Globular Clustersby: magnitude size rise transit
  • Nebulaeby: magnitude size rise transit
  • Open Clustersby: magnitude size rise transit
  • Planetary Nebulaeby: magnitude size rise transit
  • Supernovaeby: magnitude size rise transit
  • Astrophotography Community
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    What Users Think
    I just started using the DSO Browser and I am impressed. This is an original idea put to work on an outstanding platform. I find it very useful to plan observations and photo sessions. The hourly elevation and the monthly elevation graphs are awesome and helpful. I plan to use it on a regular basis.
    Federico, Venezuela
    This continues to be the best resource of its type, now become essential for me for researching and choosing imaging targets. It means a lot less wasted time than there was. It's hard to think of any way in which this app can be improved, it does so much and so well.
    James, England
    Amazing work! What a helpful tool for planning observing sessions. Absolutely wonderful.
    Nick, United States
    Very great job with your website, I'm using it constantly since I found it! It's really that good, thank you!
    Sergio, Israel
    I love the site! It is my favorite “go-to” for session list generation and looking for DSO info.
    Andrey, United States
    Thanks for implementing the “Telescope Simulator”. Superb feature!
    Paul, England
    Thank you for creating this wonderful site, it is my favorite and I always use it. I've been to a lot of astronomical websites and so far this is the best one I've seen.
    Brandon, United States
    I've been using this for a while now and it's an amazing and educational venture! I urge any and all finding this to join in. Two things I look for on the net: beautifully done and free-of-charge. The DSO Browser passes this test with (truly) flying-colors!
    Dave, United States
    I think this site is a god send. I use it all the time for planning what I am going to image.
    James, England

    Astronomy Articles

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    NASA to Leverage Current Planning for 45-Day Exploration Report

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    Space Calendar 2017: Launches, Sky Events & More

    Here's a guide to the major astronomical events of the next year, as well as space launches and milestones for spacecrafts already in travel.
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    The Future of Space Is Coming…'Soonish'

    In their new book "Soonish" (Penguin Press, 2017), out today (Oct. 17), Kelly and Zach Weinersmith dig into 10 realms of future technology to see which will survive, which will likely flounder and which could change (or ruin) everything.
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    Image of the Day

    Saturn's moon Dione shines like a half moon in this photo from NASA's Cassini spacecraft.
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    Why Gravitational Waves Are So Exhilarating

    The gravitational-wave research community seems to be having a remarkable string of good luck. Here's what the smashing finding means.
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    For the first time, gravitational waves generated by the merger of two neutron stars have been detected. And that merger was also confirmed optically!

    Astronomy Quote of the Day

    “I look up at the night sky, and I know that, yes, we are part of this Universe, we are in this Universe, but perhaps more important than both of those facts is that the Universe is in us.” Neil deGrasse Tyson
    Astronomy Planning Made Easy. Learn more.