Tuesday, October 31, 2017

Solar System Missions Update 11/2017

Here's my map of all active and future Solar System Missions as of November 1st 2017.

No changes this time apart from those mandated by the never ending dance of gravity...

Data, images and documentation are available on my space exploration history GitHub repository and the associated website.

Sunday, October 1, 2017

D3-Celestial with constellation select

A new feature for the interactive d3-celestial map, center on and zoom in on a single constellation, and hilight the constellation boundary if they are displayed. Choose a constellation from the select-box below and see what happens.

I also gave all the configuration categories IDs, so it is pretty easy to simplify the form via CSS styles, #celestial-form #stars { display: none; } makes the setting for stars invisible, and so on. The available IDs are: general, location, stars, dsos, constellations, lines, and, other, or the respective categories. Above I hid all the categories except general with the css:

  #celestial-form #location, 
  #celestial-form #stars, 
  #celestial-form #dsos,
  #celestial-form #constellations, 
  #celestial-form #lines, 
  #celestial-form #other { display:none; } 

See some more d3-celestial examples here, play with it here or check out the documentation and/or fork/download the source from the GitHub repository.

Saturday, September 30, 2017

Solar System Missions Update 10/2017

Here's my map of all active and future Solar System Missions as of October 1st 2017.

The good news: finally an unobstructed view of Saturn's rings on the map, you've probably already heard the bad news...

Data, images and documentation are available on my space exploration history GitHub repository and the associated website.

Wednesday, August 30, 2017

Solar System Missions Update 09/2017

Here's my map of all active and future Solar System Missions as of September 1st 2017.

So this is it, this month Cassini is going to end. For the first time the map will be without it. I remember when my enthusiasm for all things space was reignited by the Mars Pathfinder mission. One month after it ended, Cassini launched, so it has always been with me on my journey through the universe. Until now.

But there is no reason to mourn for me, I mean look at it, what wonders and insights it has brought us! So lets celebrate 20 magnificent years of exploration, and keep going on the path it has illuminated for us.

Data, images and documentation are available on my space exploration history GitHub repository and the associated website.

D3-Celestial animated planets

Now that I have solar system objects in the interactive d3-celestial map, I can, with only a bit more effort, make a pretty temporal animation with it, loke below.

Apart from including the necessary javascript libraries, this is the code to do that: var reqID, reqAnimFrame = window.requestAnimationFrame || window.mozRequestAnimationFrame || window.webkitRequestAnimationFrame || window.msRequestAnimationFrame || window.oRequestAnimationFrame, cncAnimFrame = window.cancelAnimationFrame || window.mozCancelAnimationFrame || window.webkitCancelAnimationFrame || window.msCancelAnimationFrame || window.oCancelAnimationFrame, dt = new Date(); Celestial.display({ location:true, projection:"equirectangular", datapath: "http://ofrohn.github.io/data/", planets: {show: true}, dsos: {show: false}, constellations: {names: false}, stars: {names: false, limit: 4.6} }); function animate() { reqID = reqAnimFrame(animate); dt.setDate(dt.getDate()+1); Celestial.date(dt); } d3.select('#celestial-map').on('mousedown', function() { cncAnimFrame(reqID) } ) d3.select('#celestial-map').on('mouseup', function() { reqAnimFrame(animate) } ) reqID = reqAnimFrame(animate);

As you can see, most of it is configuration and javascript animation stuff, the essential d3-celestial function needed is Celestial.date(dt) to change the date.

See some more d3-celestial examples here, play with it here or check out the documentation and/or fork/download the source from the GitHub repository.

Sunday, August 27, 2017

D3-Celestial now with planets, Sun & Moon

This is version 0.6 of my interactive celestial map, featuring the apparent position of solar system objects. By default it shows the major planets, the Sun and the Moon, butt it is configurable to show any solar system object with known orbital elements, as long as a specific date is given. Appearance can also be configured in the configuration settings

Some more new details: Day back/forward arrows on the date-time picker, and directly setting a geographic coordinate in the configuration.

This is the entire code for the above display (apart from including the necessary javascript libraries): Celestial.display({ projection:"airy", datapath: "http://ofrohn.github.io/data/", location: true, geopos: [38,110], planets: {show: true} });

See some more d3-celestial examples here, play with it here or check out the documentation and/or fork/download the source from the GitHub repository.

Monday, July 31, 2017

Solar System Missions Update 08/2017

Here's my map of all active and future Solar System Missions as of August 1st 2017.

So it seems the Red Dragon won't land on Mars after all. But then there is a new entry on the list, the Japanese Martian Moons eXploration (MMX) mission, which will return a Matian moon sample if it succeeds. Meanwhile, enjoy Cassini while it lasts.

Data, images and documentation are now available on my space exploration history GitHub repository and the associated website.