genialer Leoniden-Film von Sirko Molau (AKM)

[Ulrich Rieth]

Hallo!

Ich denke, dass ist auch was für einige hier im Forum, die nicht auf den entsprechenden Listen angemeldet sind.
Eine tolle GIF-anim vom Leonidensturm über Korea.
Hier der original Beitrag.
Das "große" GIF ist wirklich der Hammer. Da bekommt man endlich mal einen Eindruck von dem, was man als Radiant bezeichnet. Außerdem sieht man auch sehr schön einige Tauriden (?).
Viel Spaß!

Ulrich

Folks,

in 1999 I was somewhat disappointed by my video records of the Leonids storm.
I had choosen a small field of view with good limiting magnitude but recorded just a few hundred Leonids. In fact, even during the storm Taurids and other meteors made up about 20% of all detected meteors.

So this year I decided for the opposite choice. I operated AVIS with a 16mm f/2.8 fish-eye lens which gave me a 95 deg field of view and a limiting magnitude of close to 5 mag. It turned out that this was a good choice, especially since the percentage of bright meteors was much higher than in 1999. A first run of the meteor detection software MetRec revealed more than 2000 meteors, among them a number of fireballs, in 8 hours of effective observing time. There are up to 20 recorded meteors per minute which is about half of what I saw with my own eyes. Hence, the video gives a good account of the visual impression of the storm.

The analysis will be refined in the following days, but to have already something picturesque I created a first animation of the 2001 Leonid storm last night. It covers the time 17:00-21:00 UT on November 18. Each of the 240 image of the sequence was made of 1500 video frames, i.e. one minute of recordings.

The animation is not yet perfect, but I guess it's a good start.

There are two versions available:
- half PAL resolution (388x284 pixel, 18 MB!!!)
http://www-i6.informatik.rwth-aachen.de ... o01an1.gif
- quarter PAL resolution (192x144, pixel, 4.3 MB)
http://www-i6.informatik.rwth-aachen.de ... o01an2.gif

I hope you enjoy it.

Cheers,
Sirko Molau

[Sven Lüke]

Das sieht ja wirklich genial aus - wenngleich die 18 MB doch etwas happig sind (für Leute die noch kein DSL haben). Hätte Sirko Molau was dagegen, wenn ich daraus mal ein DivX erstelle?

cu, Sven

> Hallo!

> Ich denke, dass ist auch was für einige hier im Forum, die nicht
> auf den entsprechenden Listen angemeldet sind.
> Eine tolle GIF-anim vom Leonidensturm über Korea.
> Hier der original Beitrag.
> Das "große" GIF ist wirklich der Hammer. Da bekommt
> man endlich mal einen Eindruck von dem, was man als Radiant
> bezeichnet. Außerdem sieht man auch sehr schön einige Tauriden
> (?).
> Viel Spaß!

> Ulrich

> Folks,

> in 1999 I was somewhat disappointed by my video records of the
> Leonids storm.
> I had choosen a small field of view with good limiting magnitude
> but recorded just a few hundred Leonids. In fact, even during
> the storm Taurids and other meteors made up about 20% of all
> detected meteors.

> So this year I decided for the opposite choice. I operated AVIS
> with a 16mm f/2.8 fish-eye lens which gave me a 95 deg field of
> view and a limiting magnitude of close to 5 mag. It turned out
> that this was a good choice, especially since the percentage of
> bright meteors was much higher than in 1999. A first run of the
> meteor detection software MetRec revealed more than 2000
> meteors, among them a number of fireballs, in 8 hours of
> effective observing time. There are up to 20 recorded meteors
> per minute which is about half of what I saw with my own eyes.
> Hence, the video gives a good account of the visual impression
> of the storm.

> The analysis will be refined in the following days, but to have
> already something picturesque I created a first animation of the
> 2001 Leonid storm last night. It covers the time 17:00-21:00 UT
> on November 18. Each of the 240 image of the sequence was made
> of 1500 video frames, i.e. one minute of recordings.

> The animation is not yet perfect, but I guess it's a good start.

> There are two versions available:
> - half PAL resolution (388x284 pixel, 18 MB!!!)
>
> http://www-i6.informatik.rwth-aachen.de ... o01an1.gif
> - quarter PAL resolution (192x144, pixel, 4.3 MB)
>
> http://www-i6.informatik.rwth-aachen.de ... o01an2.gif
> I hope you enjoy it.

> Cheers,
> Sirko Molau

[Ulrich Rieth]

...dann kann er das auch noch dazu auf die Seite stellen.
Gruß

Ulrich

PS.: Im Uni Netz hab ich das Teil in weniger als 10sec gezogen

[Martin]

Hallo

die Animation ist fantastisch zumal mir die Grösse bei 200kb/s an der UNI relativ egal ist. Etwas ähnliches habe ich bisher noch nicht gesehen.

Gruss

Martin

[Heiko]

Re: einfach toll - aber selbst mit 2-Kanal "Land-Ei-ISDN" ca. 25 min Ladezeit !!! *o.T.*

[Dieter Raith]

Re: 18 Min analog mit dem Mac bei 45333bit/Sec Wahnsinn! *o.T.*