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Observatory Parameters
Feb 21
Ashburn
Clouds: Seeing:
Waxing Crescent
10:13 23:54
Astronomy Planning Made Easy

What's in your location's Sky Tonight?

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  • Globular Clustersby: magnitude size rise transit
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  • Open Clustersby: magnitude size rise transit
  • Planetary Nebulaeby: magnitude size rise transit
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    What Users Think
    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
    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
    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
    Amazing work! What a helpful tool for planning observing sessions. Absolutely wonderful.
    Nick, 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
    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
    Thanks for implementing the “Telescope Simulator”. Superb feature!
    Paul, England
    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

    Astronomy Articles

    · Universe Today

    Russia and China Are Working on Space and Counterspace Weapons

    According to the Department of National Intelligence's (DNI) 2018 report, China and Russia could be developing technologies that will give them an edge in space. The post Russia and China Are Working on Space and Counterspace Weapons appeared first on Universe Today.
    · Universe Today

    Astronomers Observe the Rotating Accretion Disk Around the Supermassive Black Hole in M77

    A team of Japanese astronomers conducted the first detailed observation of a dust and gas torus surrounding a supermassive black hole. The post Astronomers Observe the Rotating Accretion Disk Around the Supermassive Black Hole in M77 appeared first on Universe Today.
    · Space.com

    This Martian Crater Has a Weirdly Earth-Like Secret

    Is this mountain from Mars, or Hawaii?
    · Space.com

    How 5,000 Pencil-Size Robots May Solve the Mysteries of the Universe

    The little, swiveling robots will look at a new portion of the sky for the invisible force called dark energy that may be causing the accelerating expansion of the universe.
    · Space.com

    Elon Musk's Company Gets OK to Dig Washington, DC, Hyperloop Tunnel

    The preliminary permit issued by the district's Department of Transportation is still vague on details.
    · Space.com

    See a SpaceX Falcon Heavy Booster at the Kennedy Space Center Visitor Complex This Week!

    If you're a space fan visiting Florida's Space Coast this week, then you have a chance to see something special: one of the reusable boosters that launched SpaceX's first Falcon Heavy rocket into space.
    · Space.com

    Image of the Day

    Icy particles clump together to form a ridge of fluffy peaks along the outer edge of Saturn's B ring, the largest and brightest ring in the Saturn system.
    · Hubble - News feed

    NASA's James Webb Space Telescope to Reveal Secrets of the Red Planet

    Webb will investigate how Mars went from wet to dry Mars rovers and orbiters have found signs that Mars once hosted liquid water on its surface. Much of that water escaped over time. How much water was lost, and how does the water that’s left move from ice to atmosphere to soil? During...

    Astronomy Quote of the Day

    “The purpose of life is the investigation of the Sun, the Moon, and the heavens.” Anaxagoras, Philosopher, 459 BCE
    Astronomy Planning Made Easy. Learn more.