Free planetarium

Search found 585 matches

  • 1
  • 2
  • 3
  • 4
  • 5
  • 39
by Watsisname
26 Jun 2017 19:56
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 375
Views: 14235

Science and Astronomy Questions

9099 Neutrinos travel at lightspeed, but they are emitted a few moments before the star actually goes supernova, that's why they arrive earlier. Yes.  The core collapse that triggers the supernova is very fast (fraction of a second!) and emits the neutrinos, which due to their ghostly nature escape...
by Watsisname
26 Jun 2017 19:17
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 164
Views: 7421

Science and Astronomy News

This is the first time ALMA observed its surface.  Betelgeuse was the first star (besides the Sun) whose surface was resolved, but this is not the first image of its kind, and  lots of other stars have been resolved, too.  :)  E.g.  Altair in 2007 . Another fun fact:  The Milky Way's central black h...
by Watsisname
25 Jun 2017 17:30
Forum: Space Journeys
Topic: Your SpaceEngine Videos
Replies: 133
Views: 6136

Your SpaceEngine Videos

9068 mainly because I wanted to use Blue Danube track in a video   (2001 fans sup.) \o/ This is outstanding!  Very thorough presentation, and I like that you use a deliberate pacing, giving each scene plenty of time to appreciate the majesty of it. (Also a lot like 2001's visual style). :)  Good na...
by Watsisname
24 Jun 2017 11:24
Forum: Space Journeys
Topic: Image Dump
Replies: 699
Views: 35121

Image Dump

Aye, I followed an eclipse shadow across a desert planet until it passed over some interesting terrain.  The low cloud layer really adds to the effect. :) Wouldn't it be weird if there could be a stationary eclipse shadow?  Imagine what locals would think of the place... Added:   Here's the location...
by Watsisname
24 Jun 2017 08:17
Forum: Space Journeys
Topic: Image Dump
Replies: 699
Views: 35121

Image Dump

Image

Image
by Watsisname
24 Jun 2017 00:02
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 70
Views: 5070

Show off your work

Dawn http://i.imgur.com/PpzH3Cl.jpg http://i.imgur.com/6Y3KK0A.jpg http://i.imgur.com/NiivOeL.jpg http://i.imgur.com/ma1fl3i.jpg Alpine Wildflowers http://i.imgur.com/rtBFlGv.jpg http://i.imgur.com/8TEqQOr.jpg http://i.imgur.com/kII8Pf2.jpg http://i.imgur.com/D3sEmLx.jpg http://i.imgur.com/nwWYNQ4.j...
by Watsisname
23 Jun 2017 00:54
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 164
Views: 7421

Science and Astronomy News

Testing their qualification by Soter's Discriminant is observationally difficult, but classifying by Margot's Pi would be fairly easy.  It will depend on their mass and orbital distance. For those unfamiliar, Soter's Discriminant is a measure of orbital clearing by the ratio of the object's mass to ...
by Watsisname
22 Jun 2017 16:49
Forum: Off-topic Discussions
Topic: Topic for Music Lovers
Replies: 30
Views: 1129

Topic for Music Lovers

Just ordered this album, and then a moment later got a notification for the SOMA game being 70% off on Steam.



It's like I can feel the deep connections of the universe or something.
by Watsisname
22 Jun 2017 16:44
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 164
Views: 7421

Science and Astronomy News

More likely the tenth and not the ninth.  Also, possibly neither.  All evidence for them is statistical and based on behavior of minor planet orbits, and recent surveys suggest evidence for Nine was just bias .  Evidence for Ten is also fairly weak at this point. Goodbye Planet 9, Hello Planet 10 Th...
by Watsisname
22 Jun 2017 16:39
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 70
Views: 5070

Show off your work

Looks like a beautiful area. :)

And nice composition, HarbingerDawn.
by Watsisname
21 Jun 2017 02:25
Forum: Off-topic Discussions
Topic: General global warming / climate chage discussion
Replies: 123
Views: 4234

General global warming / climate chage discussion

8910 For instance, as an example of modern augury, "when the swallows fly low, the weather will turn wetter".  Obviously, that fails generalisation, but we can propose a physical explanation.  The swallows hunt insects and insects will fly lower closer to safety when the humidity and the ...
by Watsisname
20 Jun 2017 21:06
Forum: General Discussions
Topic: Space Engine - Solar/Lunar Eclipses
Replies: 31
Views: 1897

Space Engine - Solar/Lunar Eclipses

8895 Has anybody observed total solar eclipses on Earth in Space Engine? Oh yes.  As mentioned the timings are not accurate yet (the Moon's orbit is hella complicated) but you can still get them.   Close up of totality: http://i.imgur.com/1zL3d0S.jpg Fisheye of the whole sky, showing the lit horizo...
by Watsisname
20 Jun 2017 20:47
Forum: Science and Astronomy Discussions
Topic: Astrophotography
Replies: 85
Views: 3797

Astrophotography

Amazing!  M 20/21 is my favorite. :)
by Watsisname
20 Jun 2017 18:23
Forum: Off-topic Discussions
Topic: General global warming / climate chage discussion
Replies: 123
Views: 4234

General global warming / climate chage discussion

Oftentimes the justification in science is that "it happens to work". :)  In my university physics program I worked with a project for imaging the atomic structure of metal surfaces using a scanning tunneling electron microscope, and I saw how they make the probe tips.  It felt like the mo...
by Watsisname
20 Jun 2017 15:59
Forum: Troubleshooting and Solutions
Topic: Troubleshooting and bug reports - SpaceEngine 0.9.8.0
Replies: 431
Views: 18147

Troubleshooting and bug reports - SpaceEngine 0.9.8.0

Of course he does -- do you think every star was added in manually?   SE determines stellar parameters from data in star catalogs, but errors, omissions, and uncertainties in those catalogs can lead to discrepancies from what you may find online.  One of the biggest issues is when properties are det...
  • 1
  • 2
  • 3
  • 4
  • 5
  • 39