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von Timo Kuhmonen
13. Okt 2021, 10:45
Forum: Polarlicht und Astronomie
Thema: Polarlicht 2021-10-12/13
Antworten: 8
Zugriffe: 802

Re: Polarlicht 2021-10-12/13

My observation from central Finland at 63N latitude... Image is taken on 12.10.2021, at 19:52 UT. Conditions were not good, lot of mist in the air and clouds also disturbed. At least I got radio observations done on 6m hamradio band. There were many 50MHz beacons heard through aurora propagation... ...
von Timo Kuhmonen
6. Okt 2021, 15:19
Forum: Halos und atmosphärische Erscheinungen
Thema: [Halo] Artificial light halos, Taivaanvahti (various years)
Antworten: 6
Zugriffe: 1823

Re: [Halo] Artificial light halos, Taivaanvahti (various years)

Another set of artificial light halos at 4.10.2021. "Projection" of local map from Pieksämäki / Finland...
https://www.taivaanvahti.fi/observations/show/101731
von Timo Kuhmonen
12. Aug 2021, 17:59
Forum: Meteore
Thema: Perseiden 2021
Antworten: 20
Zugriffe: 1889

Re: Perseiden 2021

There is some hamradio call owners on this forum... Is there anyone trying meteor scatter (MS) QSO's during Perseids, mainly in 6m (50MHz)? I have short beam antenna outside for 6m (listening) to south direction at central Finland. I only have limited power (QRP) on my radios, so not best possible s...
von Timo Kuhmonen
11. Aug 2021, 15:30
Forum: Halos und atmosphärische Erscheinungen
Thema: [Umfrage] Deutscher Name für Zero Order Glow?
Antworten: 21
Zugriffe: 1085

Re: Deutscher Name für Zero Order Glow?

Although this thread is discussed about German translation term I mention how it is in Finland. I found a term "nollannen kertaluokan hehku". To me it looks like a direct translation of the english term "zero order glow". https://www.ursa.fi/ilmakeha/ilmiot/sateenkaaret/sateenkaa...
von Timo Kuhmonen
11. Aug 2021, 14:41
Forum: Test Forum
Thema: Test: Farbe Bild vs. Vorschaubild
Antworten: 5
Zugriffe: 367

Re: Test: Farbe Bild vs. Vorschaubild

hi, This AKM forum seems to be using phpBB, does the SMF have a same problems on color presentation for scaled images...? I also prefer sRGB profile, for the images to presented on the web. I do image adjusting on Adobe RGB color space - then finally assing the profile based on usage of "final&...
von Timo Kuhmonen
6. Aug 2021, 21:19
Forum: Meteore
Thema: Perseiden 2021
Antworten: 20
Zugriffe: 1889

Re: Perseiden 2021

Fyi. One observation (5.8.) from my location at central Finland. Trail location and direction sky, indicates this most propably is Perseid fireball. Duration of visible flight is 1.3sec
https://www.taivaanvahti.fi/observations/show/100278
von Timo Kuhmonen
4. Aug 2021, 11:00
Forum: Off-Topic
Thema: Ultrasonic soundscape under nightsky
Antworten: 5
Zugriffe: 1700

Re: Ultrasonic soundscape under nightsky

fyi. currently on my location at central Finland, there is outside two small voice recorders (AudioMoth). One person comes out and checks those, after two weeks of recording start. It remains to be seen, how many bats are detected (also indication of species :-)
von Timo Kuhmonen
4. Aug 2021, 10:41
Forum: Leuchtende Nachtwolken (NLC)
Thema: NLC 2021-08-03/04
Antworten: 10
Zugriffe: 865

Re: NLC 2021-08-03/04

FYI... NLC's in Taivaanvahti for 3/4.8.2021
https://www.taivaanvahti.fi/observation ... id/desc/0/
von Timo Kuhmonen
27. Jul 2021, 23:48
Forum: Leuchtende Nachtwolken (NLC)
Thema: NLC 2021-07-27/28
Antworten: 10
Zugriffe: 629

Re: NLC 2021-07-27/28

FYI; NLC in Taivaanvahti for 27/28 night. The same links shows more observation(s) later on...
https://www.taivaanvahti.fi/observation ... id/desc/0/
von Timo Kuhmonen
27. Jul 2021, 22:26
Forum: Leuchtende Nachtwolken (NLC)
Thema: NLC 2021-07-27/28
Antworten: 10
Zugriffe: 629

Re: NLC 2021-07-27/28

sample from central Finland this night, north on center at image. My location is at 63Nlatitude... Observing NLC can be exciting (with or without snakes :-)
von Timo Kuhmonen
25. Jul 2021, 11:08
Forum: Meteore
Thema: Fireballs with sonic booms - audio samples?
Antworten: 2
Zugriffe: 279

Re: Fireballs with sonic booms - audio samples?

thanks for comments... That sound sample in Sweden, contains more info than "typical" sound samples :-) I will need to google searching for other samples also (including last night bright fireball near to Oslo & Norway...)
von Timo Kuhmonen
6. Jul 2021, 20:25
Forum: Meteore
Thema: Fireballs with sonic booms - audio samples?
Antworten: 2
Zugriffe: 279

Fireballs with sonic booms - audio samples?

Hello, does someone know here, is there a link list available for fireballs, that have been known to generate clear audible sounds, like distant rumble (similar to thunderstorm) or more loud and sharp sonic booms ? I mean a some kind of list from cases, that include also a recorded sound samples at ...
von Timo Kuhmonen
5. Jul 2021, 19:14
Forum: Leuchtende Nachtwolken (NLC)
Thema: NLC 2021-07-04/05
Antworten: 53
Zugriffe: 3548

Re: NLC 2021-07-04/05

Seems that there was good NLC's last night, was it the best display for this year in Germany ?

NLC observations in Finland, those still are located on southern Finland (as seen on the map for last night)
https://www.taivaanvahti.fi/observation ... /desc/0/20
von Timo Kuhmonen
30. Jun 2021, 14:45
Forum: Leuchtende Nachtwolken (NLC)
Thema: NLC 2021-06-29/30
Antworten: 2
Zugriffe: 471

Re: NLC 2021-06-29/30

FYI. Observations in Taivaanvahti (for Finland)
https://www.taivaanvahti.fi/observation ... id/desc/0/
von Timo Kuhmonen
28. Jun 2021, 22:54
Forum: Leuchtende Nachtwolken (NLC)
Thema: NLC 2021-06-28/29
Antworten: 19
Zugriffe: 1285

Re: NLC 2021-06-28/29

in Taivaanvahti, observations at Finland
Turku, https://www.taivaanvahti.fi/observations/show/99206
Helsinki https://www.taivaanvahti.fi/observations/show/99208

seems all the NLC observations (in Finland) are still centered on southern part of this country...