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by midtskogen
29 Nov 2020 10:51
Forum: Science and Astronomy Discussions
Topic: Asteroids, meteors, and meteorites
Replies: 81
Views: 12875

Asteroids, meteors, and meteorites

35302 I heard there are some amazing northern lights displays going on over there! Amazing, yes, in northern Scandinavia, but that's normal. More videos of yesterday's fireball (check the full moon in some videos to get a sense of the brightness):  http://norskmeteornettverk.no/bilder/2020/videos-2...
by midtskogen
28 Nov 2020 14:22
Forum: Science and Astronomy Discussions
Topic: Asteroids, meteors, and meteorites
Replies: 81
Views: 12875

Asteroids, meteors, and meteorites

Another big one near Sweden: http://norskmeteornettverk.no/bilder/2020/ildkule-20201128.mp4

Again the best videos were from Norway, though mostly cloudy here.  But any meteorites fell into the sea this time.
by midtskogen
28 Nov 2020 09:01
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 469
Views: 123963

Show off your work

I have started calibration work on four new cameras which are being added to the meteor network, greatly improving the coverage of northern Norway.  Situated at a fairly dark university site at 69N this looks promising.  Mountains surround the place limiting the field of view, but the more scenic th...
by midtskogen
25 Nov 2020 07:17
Forum: Science and Astronomy Discussions
Topic: Asteroids, meteors, and meteorites
Replies: 81
Views: 12875

Asteroids, meteors, and meteorites

35267 Also a good paper to read: On the Survivability and Detectability of Terrestrial Meteorites on the Moon. Interesting, but it doesn't seem to cover the survivability of biomarkers in rocks ejected from Earth.  So what's the worst shock: being hit and ejected into space from Earth, or hitting t...
by midtskogen
25 Nov 2020 00:53
Forum: Science and Astronomy Discussions
Topic: Asteroids, meteors, and meteorites
Replies: 81
Views: 12875

Asteroids, meteors, and meteorites

35260 Wouldn't it be something if one day we found an earth rock on the Moon or Mars? More realistic and equally awesome: What if we found an Earth meteorite on Earth.  Ejected perhaps several hundred million years ago, isolated from all geological processes, then returning to Earth.  It could even...
by midtskogen
24 Nov 2020 12:07
Forum: Science and Astronomy Discussions
Topic: Asteroids, meteors, and meteorites
Replies: 81
Views: 12875

Asteroids, meteors, and meteorites

Neat, those are rare meteorites.  Lunar and Martian, I mean.  My entire meteorite collection consists of a small piece of  Valle  which was given to me by its finder.  A pretty common class of meteorite. The search is still on in Sweden, but no reported finds yet.  Something punching into the tropos...
by midtskogen
22 Nov 2020 21:52
Forum: Science and Astronomy Discussions
Topic: Astrophotography
Replies: 551
Views: 103230

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: 551
Views: 103230

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: 306
Views: 35810

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: 306
Views: 35810

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: 551
Views: 103230

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: 306
Views: 35810

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: 306
Views: 35810

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: 306
Views: 35810

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: 551
Views: 103230

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.