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von Timo Kuhmonen
5. Jul 2020, 21:09
Forum: Halos und atmosphärische Erscheinungen
Thema: Reflected anti-crepuscular rays (Taivaanvahti)
Antworten: 6
Zugriffe: 811

Re: Reflected anti-crepuscular rays (Taivaanvahti)

To Elmar and other also -- I think the phenomena might be best visible here, on last attached images. Another display from Kuusamo, Finland (13.6.2019) -> reflected crepuscular / reflected anti crepuscular rays https://www.taivaanvahti.fi/observations/show/83573 In Taivaanvahti there is small info b...
von Timo Kuhmonen
30. Jun 2020, 16:27
Forum: Leuchtende Nachtwolken (NLC)
Thema: NLC 2020-06-29/30
Antworten: 20
Zugriffe: 1229

Re: NLC 2020-06-29/30

fyi. No NLC observations here on last night.... It started to rain already on yesterday, continuing until next night. Now there is approx 35mm layer of water in the rain meter.... and more will follow.
von Timo Kuhmonen
24. Jun 2020, 21:27
Forum: Halos und atmosphärische Erscheinungen
Thema: Algae optical effects (various years, Taivaanvahti)
Antworten: 10
Zugriffe: 961

Re: Algae optical effects (various years, Taivaanvahti)

FYI; additional images from Raisio observation location (24.6.2020). To my opinion it looks very nice :-)
https://www.taivaanvahti.fi/observations/show/91369
von Timo Kuhmonen
24. Jun 2020, 14:56
Forum: Halos und atmosphärische Erscheinungen
Thema: Algae optical effects (various years, Taivaanvahti)
Antworten: 10
Zugriffe: 961

Re: Algae optical effects (various years, Taivaanvahti)

FYI. Observation from Raisio & Finland (23.6.2020), this phenomena mentioned to be related to Nautococcus -algae. Colors on the phenomena seem to be very strong...
https://www.taivaanvahti.fi/observations/show/91349
von Timo Kuhmonen
23. Jun 2020, 10:05
Forum: Halos und atmosphärische Erscheinungen
Thema: [HALO] Reflection subsun (Taivaanvahti, various years)
Antworten: 0
Zugriffe: 113

[HALO] Reflection subsun (Taivaanvahti, various years)

fyi, I'll inform on this new thread, because I did not found an older one of this topic? One interesting looking halo is observed (29.5.2020, Muonio-Finland) https://www.taivaanvahti.fi/observations/show/91336 It does not look like ordinary sunpillar. On the observation it is identified as reflectio...
von Timo Kuhmonen
16. Jun 2020, 22:29
Forum: Leuchtende Nachtwolken (NLC)
Thema: NLC 2020-06-16/17
Antworten: 83
Zugriffe: 5338

Re: NLC 2020-06-16/17

nice to see photos :-) You have had a good set of NLC there. To my understanding in Finland, the best season for the NLC's will be in July. So probably couple of weeks to wait for that ? Still nights are here not at all dark. For curiosity (central Finland) I tested my SQM-L meter. It shows 30 mins ...
von Timo Kuhmonen
15. Jun 2020, 16:25
Forum: Meteore
Thema: Cape Preston, Australia (14.6.2020)
Antworten: 2
Zugriffe: 277

Cape Preston, Australia (14.6.2020)

fyi, today long duration fireball was seen https://www.perthnow.com.au/technology/science/meteor-lights-up-pilbara-sky-in-vision-captured-by-fifo-worker-miller-frunks-ng-b881578491z I did not yet found many videos. This one was at Finnish website (Ilta Sanomat). Based on the video (Kane Marshall), d...
von Timo Kuhmonen
11. Jun 2020, 21:54
Forum: Halos und atmosphärische Erscheinungen
Thema: [HALO] 22 ring halos on surface (13.5.2020, Finland)
Antworten: 1
Zugriffe: 158

[HALO] 22 ring halos on surface (13.5.2020, Finland)

hello, here is a set of images of 22 ring halo. This time I only took 300mm lens with me :-) Good to take some out of focus images of the glowing crystals. These crystals appear in the surface of straws (at nearby field). Images were taken approx 06AM on local time. Crystals soon disappeared when te...
von Timo Kuhmonen
5. Jun 2020, 16:00
Forum: Halos und atmosphärische Erscheinungen
Thema: 2020-06-03 Deutlich gespaltener Regenbogen auf dem Fichtelberg
Antworten: 4
Zugriffe: 301

Re: 2020-06-03 Deutlich gespaltener Regenbogen auf dem Fichtelberg

Normally the twinned bow is visible in primary. Is there any known cases, that twinning would be seen on secondary bow...? If it is not theoretically possible, what is reason. At least that bow has less intensity...
von Timo Kuhmonen
3. Mai 2020, 13:55
Forum: Meteore
Thema: Hat jemand schon mal was von den Eta-Aquariden gehört?
Antworten: 16
Zugriffe: 967

Re: Hat jemand schon mal was von den Eta-Aquariden gehört?

What is the situation in Finland, visual and camera observations are about to end now... One reason is the nights are getting more light, day by day. I guess this Eta aquarids meteor shower shall be possible to follow visually on central europe ? I plan to setup my camera for IR pass filters in the ...
von Timo Kuhmonen
21. Apr 2020, 15:59
Forum: Meteore
Thema: Radiobeobachtung: Bis zu den Lyriden muß es klappen
Antworten: 18
Zugriffe: 701

Re: Radiobeobachtung: Bis zu den Lyriden muß es klappen

Comments for HROFFT... When I started to use it first, it was approx 5...7 years ago (under windows7). I have then seen a situation(s), where suddenly file saving is stopped (10min images for echoes). HROFFT did not show any errors. Also it did not cause any other jamming software. I suspect it may ...
von Timo Kuhmonen
21. Apr 2020, 11:44
Forum: Meteore
Thema: Radiobeobachtung: Bis zu den Lyriden muß es klappen
Antworten: 18
Zugriffe: 701

Re: Radiobeobachtung: Bis zu den Lyriden muß es klappen

I have setup HDSDR for periodical captures. It depends on the needs, what time you setup between captures. If bigger time resolution needed, there will be bigger amount of files :-) I also use virtual audio cable (VAC), to route audio stream from HDSDR to HROFFT. These software can work at the same ...
von Timo Kuhmonen
21. Apr 2020, 08:47
Forum: Meteore
Thema: Radiobeobachtung: Bis zu den Lyriden muß es klappen
Antworten: 18
Zugriffe: 701

Re: Radiobeobachtung: Bis zu den Lyriden muß es klappen

fyi. Together with HDSDR I have been using the HROFFT counting software. It basically detects every signal level rise on the monitored frequency. So it can capture also unwanted "echoes" like plane dopplers near TX-RX line. And if the direct signal from source is heard all the time, it also detecs i...