100% mobile compatible
Observatory Parameters
Oct 18
Lat. 39.0, Lon. -77.5
Clouds: Seeing:
Waning Crescent
06:01 18:14
New Moon:Tomorrow!
Astronomy Planning Made Easy

What's in your location's Sky Tonight?

  • Planets
  • Asterismsby: magnitude size rise transit
  • Dark Nebulaeby: magnitude size rise transit
  • 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
    Latest Picturesbrowse all...

    Upload Your Astrophotography

    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
    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
    Very great job with your website, I'm using it constantly since I found it! It's really that good, thank you!
    Sergio, Israel
    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
    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

    Astronomy Articles

    · Universe Today

    Flowing Water on Mars Likely Cold and Frosty, Says New Study

    A new study from Brown University has offered a possible explanation for how surface water could have flown on Mars roughly 4 billion years ago. The post Flowing Water on Mars Likely Cold and Frosty, Says New Study appeared first on Universe Today.
    · Space.com

    Neutron-Star Collision Reveals Origin of Gold, Astronomers Say

    An international team of astronomers detected the first gravitational waves from merging neutron stars, and found proof they are the source of the universe's heavy elements, including gold and platinum.
    · Space.com

    3D Printers: A Revolutionary Frontier for Medicine

    Mission control on earth receives an urgent communication from Mars that an astronaut has fractured his shinbone. Using a handheld scanning device, the crew takes images of his damaged tibia and transmits them to earth.
    · Space.com

    NASA to Leverage Current Planning for 45-Day Exploration Report

    A shift in focus in NASA's exploration plans to the moon won't have an immediate effect on planning for the first flight of the agency's Space Launch System rocket, now expected no sooner than late 2019.
    · Space.com

    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.
    · Space.com

    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.
    · Space.com

    Image of the Day

    Saturn's moon Dione shines like a half moon in this photo from NASA's Cassini spacecraft.
    · Space.com

    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.

    Astronomy Quote of the Day

    “The strongest affection and utmost zeal should, I think, promote the studies concerned with the most beautiful objects. This is the discipline that deals with the Universe's divine revolutions, the stars' motions, sizes, distances, risings and settings... for what is more beautiful than heaven?” Nicolaus Copernicus
    Astronomy Planning Made Easy. Learn more.