Free planetarium

Search found 579 matches

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by Watsisname
23 Jun 2017 00:54
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 159
Views: 6969

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: 27
Views: 1000

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: 159
Views: 6969

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: 65
Views: 4821

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: 3961

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: 1819

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: 3603

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: 3961

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: 419
Views: 17285

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...
by Watsisname
20 Jun 2017 08:13
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Videos
Replies: 171
Views: 6926

Science and Astronomy Videos



AWESOME.  I've always wanted to do something like this.
by Watsisname
20 Jun 2017 06:34
Forum: Off-topic Discussions
Topic: General global warming / climate chage discussion
Replies: 123
Views: 3961

General global warming / climate chage discussion

8864 One obvious problem is that the data for the SH is much thinner than for the NH. True!  But counter-intuitively, not as big of a problem as you might think.   I have a fondness for counter-intuitive things . :)  Here we encounter another good example of it. Filling in as many points in space a...
by Watsisname
20 Jun 2017 05:02
Forum: Space Journeys
Topic: Planets with potentially breathable atmospheres
Replies: 102
Views: 5709

Planets with potentially breathable atmospheres

ImperiumAssertor , OMG that "Earth 2.0" is awesome.  I've just spent a lot of time exploring around it.   Very  nice find! :)  Yeah, the CO2 and especially SO2 are too high, but the planet has so many nice and Earth-like attributes besides.  And we can imagine using simple filters for the...
by Watsisname
20 Jun 2017 03:48
Forum: Off-topic Discussions
Topic: General global warming / climate chage discussion
Replies: 123
Views: 3961

General global warming / climate chage discussion

I'm not dismissing the study or your presentation of it. The study plays an integral part of reconstructing Earth's temperature history (this author's work is even included in the IPCC reports).  Reviewing it here is useful for answering important questions -- what proxy data do and do not show, and...
by Watsisname
20 Jun 2017 01:08
Forum: Off-topic Discussions
Topic: General global warming / climate chage discussion
Replies: 123
Views: 3961

General global warming / climate chage discussion

8844 I searched a bit, and I found one paper by Ljungqvist using proxies extending into the instrumental record, going 2000 years back.  It's only for the extratropical NH and not all the proxies used cover the entire period, so it's not quite apples to apples, but the study seems pretty comprehens...
by Watsisname
19 Jun 2017 04:07
Forum: Off-topic Discussions
Topic: Totally off-topic thread
Replies: 438
Views: 17392

Totally off-topic thread

Expected humor, was not disappointed.
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