Algae optical effects (various years, Taivaanvahti)

Forum für Halo-Erscheinungen, Regenbögen, Blitze und alle anderen Lichterscheinungen, die neben Polarlichtern in der Erdatmosphäre auftreten.
Antworten
Timo Kuhmonen
Beiträge: 522
Registriert: 2. Mär 2007, 22:10
Wohnort: Espoo, Finland
Kontaktdaten:

Algae optical effects (various years, Taivaanvahti)

Beitrag von Timo Kuhmonen » 20. Mai 2019, 17:54

I collect here observation(s) for algae optics in Taivaanvahti for the summer season 2019.
******************
first one from Jari Luomanen
https://www.taivaanvahti.fi/observations/show/83091
Zuletzt geändert von Timo Kuhmonen am 22. Jun 2020, 12:58, insgesamt 2-mal geändert.
Timo K, OH7HMS - KP32EV
http://tiku-astro.blogspot.com/

Benutzeravatar
Elmar Schmidt
Beiträge: 2093
Registriert: 23. Feb 2010, 20:43
Wohnort: Bad Schönborn (8o39'51"O 49o13'21"N 130 m ü.N.N.)

Re: algae optical effects (season 2019, Taivaanvahti)

Beitrag von Elmar Schmidt » 21. Mai 2019, 09:49

Thanks, nice!

The off-center interferences must be Quetelet fringes, do they go by another name in Finnish?

Elmar

Timo Kuhmonen
Beiträge: 522
Registriert: 2. Mär 2007, 22:10
Wohnort: Espoo, Finland
Kontaktdaten:

Re: algae optical effects (season 2019, Taivaanvahti)

Beitrag von Timo Kuhmonen » 21. Mai 2019, 12:44

In Taivaanvahti obswervation page -> if you press the info button, there is a description in finnish. See blue "i" letter inside a circle. I am not sure how the translation to these optics effects are done, but I understood those were known in foreing literature. I remember first hearing from algae optics, at observations from M. Riikonen...
Timo K, OH7HMS - KP32EV
http://tiku-astro.blogspot.com/

Benutzeravatar
Elmar Schmidt
Beiträge: 2093
Registriert: 23. Feb 2010, 20:43
Wohnort: Bad Schönborn (8o39'51"O 49o13'21"N 130 m ü.N.N.)

Re: algae optical effects (season 2019, Taivaanvahti)

Beitrag von Elmar Schmidt » 22. Mai 2019, 08:05

Thanks again, Timo!

I clicked the (?) button and used Bing Translator (actually, not bad for Finnish...). Yes, the large radius rings through the sun's reflection are Quetelet rings. The other phenomena are coronae, and glories on the pond.

Kind regards

Elmar

Benutzeravatar
Claudia Hinz
Beiträge: 4262
Registriert: 11. Jan 2004, 11:16
Wohnort: Schwarzenberg, Erzgebirge
Kontaktdaten:

Re: algae optical effects (season 2019, Taivaanvahti)

Beitrag von Claudia Hinz » 22. Mai 2019, 14:21

Nämä ovat ihania valokuvia!
Tervehdys Jarille ja kiitos osoituksesta.

Alexander Haußmann
Beiträge: 1127
Registriert: 6. Mär 2006, 13:39
Wohnort: Hörlitz / Dresden

Re: algae optical effects (season 2019, Taivaanvahti)

Beitrag von Alexander Haußmann » 22. Mai 2019, 20:07

Nice pictures! Never saw such phenomena myself though. It is remarkable that algae are the only other "partictles" apart from water drops that are known to cause glories.

Best regards,
Alex

Timo Kuhmonen
Beiträge: 522
Registriert: 2. Mär 2007, 22:10
Wohnort: Espoo, Finland
Kontaktdaten:

Re: algae optical effects (season 2019, Taivaanvahti)

Beitrag von Timo Kuhmonen » 1. Jun 2019, 13:53

fyi. Observation by Satu J. (Lieksa, Finland). According to comments, 70...200 tele lens was used, this might be one point why the images do look like a bit different (to normal wide angle algae photos...)
https://www.taivaanvahti.fi/observations/show/83297
Timo K, OH7HMS - KP32EV
http://tiku-astro.blogspot.com/

Timo Kuhmonen
Beiträge: 522
Registriert: 2. Mär 2007, 22:10
Wohnort: Espoo, Finland
Kontaktdaten:

Re: algae optical effects (various years, Taivaanvahti)

Beitrag von Timo Kuhmonen » 3. Sep 2019, 17:40

observation from Kirkkonummi, Finland
https://www.taivaanvahti.fi/observations/show/85326
Timo K, OH7HMS - KP32EV
http://tiku-astro.blogspot.com/

Timo Kuhmonen
Beiträge: 522
Registriert: 2. Mär 2007, 22:10
Wohnort: Espoo, Finland
Kontaktdaten:

Re: algae optical effects (various years, Taivaanvahti)

Beitrag von Timo Kuhmonen » 22. Jun 2020, 12:52

fyi. Observation from Helsinki & Finland (21.6.2020)
https://www.taivaanvahti.fi/observations/show/91334
Timo K, OH7HMS - KP32EV
http://tiku-astro.blogspot.com/

Timo Kuhmonen
Beiträge: 522
Registriert: 2. Mär 2007, 22:10
Wohnort: Espoo, Finland
Kontaktdaten:

Re: Algae optical effects (various years, Taivaanvahti)

Beitrag von Timo Kuhmonen » 24. Jun 2020, 14:56

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
Timo K, OH7HMS - KP32EV
http://tiku-astro.blogspot.com/

Timo Kuhmonen
Beiträge: 522
Registriert: 2. Mär 2007, 22:10
Wohnort: Espoo, Finland
Kontaktdaten:

Re: Algae optical effects (various years, Taivaanvahti)

Beitrag von Timo Kuhmonen » 24. Jun 2020, 21:27

FYI; additional images from Raisio observation location (24.6.2020). To my opinion it looks very nice :-)
https://www.taivaanvahti.fi/observations/show/91369
Timo K, OH7HMS - KP32EV
http://tiku-astro.blogspot.com/

Timo Kuhmonen
Beiträge: 522
Registriert: 2. Mär 2007, 22:10
Wohnort: Espoo, Finland
Kontaktdaten:

Re: Algae optical effects (various years, Taivaanvahti)

Beitrag von Timo Kuhmonen » 16. Mai 2021, 13:04

Colorful reflections on water, 14.5.2021 - Pälkäne, Finland
https://www.taivaanvahti.fi/observations/show/98384
Timo K, OH7HMS - KP32EV
http://tiku-astro.blogspot.com/

Benutzeravatar
Elmar Schmidt
Beiträge: 2093
Registriert: 23. Feb 2010, 20:43
Wohnort: Bad Schönborn (8o39'51"O 49o13'21"N 130 m ü.N.N.)

Re: Algae optical effects (various years, Taivaanvahti)

Beitrag von Elmar Schmidt » 16. Mai 2021, 16:00

Hi Timo,

thanks for posting! There must be something about Finnish algae, to produce such beautiful colors :)

Kind regards

Elmar

Timo Kuhmonen
Beiträge: 522
Registriert: 2. Mär 2007, 22:10
Wohnort: Espoo, Finland
Kontaktdaten:

Re: Algae optical effects (various years, Taivaanvahti)

Beitrag von Timo Kuhmonen » 28. Jun 2021, 10:56

FYI. Observation from Raisio - Finland at 23.6.2021.
https://www.taivaanvahti.fi/observations/show/99128
Timo K, OH7HMS - KP32EV
http://tiku-astro.blogspot.com/


Timo Kuhmonen
Beiträge: 522
Registriert: 2. Mär 2007, 22:10
Wohnort: Espoo, Finland
Kontaktdaten:

Re: Algae optical effects (various years, Taivaanvahti)

Beitrag von Timo Kuhmonen » 22. Aug 2022, 20:21

fyi. From Salo / Finland at 20.8.2022.
https://www.taivaanvahti.fi/observations/show/108726
Timo K, OH7HMS - KP32EV
http://tiku-astro.blogspot.com/

Antworten

Wer ist online?

Mitglieder in diesem Forum: 0 Mitglieder und 21 Gäste