Ultimate space simulation software

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by midtskogen
22 Nov 2020 21:52
Forum: Science and Astronomy Discussions
Topic: Astrophotography
Replies: 504
Views: 93511

Astrophotography

Note that in order to get pictures like that, you need to track the objects, record videos at manual settings and do a lot of post processing.  It's not what you get by pointing and clicking.
by midtskogen
22 Nov 2020 09:10
Forum: Science and Astronomy Discussions
Topic: Astrophotography
Replies: 504
Views: 93511

Astrophotography

A-L-E-X wrote:
Qr Bbpost This is the camera that yours reminds me of

NTSC format to cover the entire sky is pretty bad.
by midtskogen
21 Nov 2020 13:28
Forum: Off-topic Discussions
Topic: Coronavirus (COVID-19) Thread
Replies: 259
Views: 27782

Coronavirus (COVID-19) Thread

35217 Phase 3: The young (30 and under) Phase 4: Everyone else Do you know the reasoning behind prioritising the young?  They are the most social age group, so if the idea is to achieve general immunity, it makes sense.  On the other side, the illness severity for this age groups seems to be simila...
by midtskogen
21 Nov 2020 09:09
Forum: Off-topic Discussions
Topic: Coronavirus (COVID-19) Thread
Replies: 259
Views: 27782

Coronavirus (COVID-19) Thread

Mass vaccinations seem to be just a couple of months away, which raises some new questions.  Who should get it first, and how many? Things appear to be somewhat different now compared to the swine flu a decade ago.  If I recall correctly, the swine flu was a bit scary because many young people got s...
by midtskogen
21 Nov 2020 00:15
Forum: Science and Astronomy Discussions
Topic: Astrophotography
Replies: 504
Views: 93511

Astrophotography

35206 Can you live broadcast the images on the web? The cameras support it and I can access the live streams, but there isn't the infrastructure to offer than publicly.  Some cameras are at private homes with whatever internet plan the owners have, some cameras are at somewhat remote places and rel...
by midtskogen
20 Nov 2020 21:27
Forum: Off-topic Discussions
Topic: Coronavirus (COVID-19) Thread
Replies: 259
Views: 27782

Coronavirus (COVID-19) Thread

35207 Many of these states aren't too into wearing masks either. Maybe, but it's not the reason.  It's more failure to avoid situations where masks might make a difference.  It's now 06:20 Saturday morning, and I'm about to go to the grocery store to do the shopping for at least a week.  That's way...
by midtskogen
20 Nov 2020 14:16
Forum: Off-topic Discussions
Topic: Coronavirus (COVID-19) Thread
Replies: 259
Views: 27782

Coronavirus (COVID-19) Thread

So, let's check NY Times' "deaths above normal" again: x.png.png Many countries now go through the second wave with infection numbers higher than in spring and with fewer restrictions.  Yet, death rates are mostly lower.  Check the UK, for instance, nothing special about the death rates re...
by midtskogen
20 Nov 2020 13:55
Forum: Off-topic Discussions
Topic: Coronavirus (COVID-19) Thread
Replies: 259
Views: 27782

Coronavirus (COVID-19) Thread

In the spring the spread seemed to correlate highly with population density.  Now sparsely populated areas seem worst, or possibly cold areas where people now spend most of their time indoors?
by midtskogen
20 Nov 2020 10:59
Forum: Science and Astronomy Discussions
Topic: Astrophotography
Replies: 504
Views: 93511

Astrophotography

A-L-E-X wrote:
Qr Bbpost Question Mid, with your set up could you also automatically record northern lights displays? 

The cameras record continously and store several weeks of video, as well as hour long exposures, so it's possible to fetch video manually.
by midtskogen
20 Nov 2020 08:41
Forum: Science and Astronomy Discussions
Topic: Astrophotography
Replies: 504
Views: 93511

Astrophotography

35185 How does it keep stars from being recorded  in the image?  Maybe the shutter speed is fast enough not to record stars? Most stars are very faint.  With some stacking stars down to magnitude 4 and 5 become visible.  I need some stars in the image so I can keep the cameras calibrated.  The tric...
by midtskogen
20 Nov 2020 04:54
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 808
Views: 151319

Science and Astronomy News

35194 How long after take off did the Concorde take to become supersonic?  I don't think it was allowed to do that over land? 35194 About the asteroid, I heard that no one knew about it because it approached us from the "blind side" (the sun side) and so it was in the sun's glare and that...
by midtskogen
20 Nov 2020 01:38
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 808
Views: 151319

Science and Astronomy News

35186 Will you venture out to look for fragments, Mid? No, only from my desk.  There are people out in the field.  It's hard to find the time, besides there are quarantine restrictions in effect. 35186 About Chelyabinsk if I remember correctly, wasn't our attention fixed on a different (predicted) ...
by midtskogen
19 Nov 2020 05:32
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 808
Views: 151319

Science and Astronomy News

I made another visualisation where the meteor fragments into three pieces: a few grams, a few kilos and above 100 kilos.  Of course, the smalles fragment wont make much sound, but it's interesting to see the differences in deceleration.
by midtskogen
18 Nov 2020 21:55
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 808
Views: 151319

Science and Astronomy News

35165 It might be very important for meteor entries, as they pass through a very wide range of temperatures. Yes, the speed of sound is lower at higher altitudes.  And the winds are higher also, which can alter the propagation significantly.  I did not attempt to model that in any way, just assumin...
by midtskogen
18 Nov 2020 15:06
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 808
Views: 151319

Science and Astronomy News

I edited the post above with a visualisation of a more realistic deceleration.  Units on the axes are in km and the animation is in real time.
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