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von Timo Kuhmonen
13. Jun 2019, 20:31
Forum: Allgemeines Forum
Thema: Reflected anti-crepuscular rays (Taivaanvahti)
Antworten: 3
Zugriffe: 427

Re: Reflected anti-crepuscular rays (Taivaanvahti)

Another display from Kuusamo, Finland (13.6.2019) -> reflected crepuscular / reflected anti crepuscular rays https://www.taivaanvahti.fi/observations/show/83573 I think the amount of lakes in Finland is a good benefit on spotting these phenomena:-) Reflected anti crepuscular rays I have not yet obse...
von Timo Kuhmonen
1. Jun 2019, 13:53
Forum: Allgemeines Forum
Thema: algae optical effects (season 2019, Taivaanvahti)
Antworten: 6
Zugriffe: 307

Re: algae optical effects (season 2019, Taivaanvahti)

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
von Timo Kuhmonen
26. Mai 2019, 16:38
Forum: Allgemeines Forum
Thema: Reflection bow (various years, Taivaanvahti)
Antworten: 6
Zugriffe: 557

Re: Reflection bow (various years, Taivaanvahti)

fyi,

another update.... This observation from Tarja M. (Korpilahti, Finland )
https://www.taivaanvahti.fi/observations/show/83218
von Timo Kuhmonen
22. Mai 2019, 17:16
Forum: Allgemeines Forum
Thema: Twinned bows, Taivaanvahti (various years)
Antworten: 5
Zugriffe: 587

Re: Twinned bows, Taivaanvahti (various years)

also this bow looks like having some anomaly, maybe also twinned ? Observation by Matti H. (Lieto, Finland)
https://www.taivaanvahti.fi/observations/show/83163
von Timo Kuhmonen
21. Mai 2019, 20:10
Forum: Allgemeines Forum
Thema: Twinned bows, Taivaanvahti (various years)
Antworten: 5
Zugriffe: 587

Re: Twinned bows, Taivaanvahti (various years)

another twinned bow. Observation by Mikko P. (Paimio, Finland)
https://www.taivaanvahti.fi/observations/show/83146
von Timo Kuhmonen
21. Mai 2019, 12:44
Forum: Allgemeines Forum
Thema: algae optical effects (season 2019, Taivaanvahti)
Antworten: 6
Zugriffe: 307

Re: algae optical effects (season 2019, Taivaanvahti)

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 ...
von Timo Kuhmonen
20. Mai 2019, 17:54
Forum: Allgemeines Forum
Thema: algae optical effects (season 2019, Taivaanvahti)
Antworten: 6
Zugriffe: 307

algae optical effects (season 2019, Taivaanvahti)

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
von Timo Kuhmonen
29. Apr 2019, 14:25
Forum: Allgemeines Forum
Thema: [Halo] Rare halos at Taivaanvahti - Kern arc (various years)
Antworten: 5
Zugriffe: 721

Re: Rare halos at Taivaanvahti - Kern arc (various years)

fyi... Another Kern observation at Taivaanvahti by Reima Eresmaa, 28 April 2019. https://www.taivaanvahti.fi/observations/show/82742 EDIT: Older ones in Taivaanvahti, starting at 1.1.2000 -> Kern arc at natural light... https://www.taivaanvahti.fi/observations/show/69681 https://www.taivaanvahti.fi/...
von Timo Kuhmonen
6. Apr 2019, 20:53
Forum: Meteor Forum
Thema: Helles Meteor 6.April 2019 02:06:10 MESZ
Antworten: 4
Zugriffe: 554

Re: Helles Meteor 6.April 2019 02:06:10 MESZ

nice one, not so often 8sec durations. The original image (first post in this thread) - does it have two lines in parallel ? Just wondering is there a good luck to capture two meteor trails...
von Timo Kuhmonen
6. Apr 2019, 20:14
Forum: Polarlicht Forum
Thema: 05.04.2019 - Künstliche Polarlichter in Norwegen
Antworten: 10
Zugriffe: 17095

Re: 05.04.20219 - Künstliche Polarlichter in Norwegen

fyi. Observations from Taivaanvahti... https://www.taivaanvahti.fi/observations/show/82194 https://www.taivaanvahti.fi/observations/show/82190 https://www.taivaanvahti.fi/observations/show/82188 https://www.taivaanvahti.fi/observations/show/82184 https://www.taivaanvahti.fi/observations/show/82176 h...
von Timo Kuhmonen
16. Mär 2019, 18:30
Forum: Allgemeines Forum
Thema: Optical phenomena, Taivaanvahti (2.6.2018)
Antworten: 0
Zugriffe: 158

Optical phenomena, Taivaanvahti (2.6.2018)

First time I see this kind of photos (Uusikaupunki, Finland) https://www.taivaanvahti.fi/observations/show/81712 Photo is taken in the summertime. This plant is called Cloudberry (Rubus chamaemorus). Have picked them, but never seen this kind of effect. I am not sure whether the optical phenomena is...
von Timo Kuhmonen
4. Mär 2019, 08:52
Forum: Meteor Forum
Thema: Long duration fireball, Taivaanvahti (21.2.2019, Finland)
Antworten: 0
Zugriffe: 267

Long duration fireball, Taivaanvahti (21.2.2019, Finland)

There is two set of photos, the 10sec duration of this is long. My own cameras did not capture this, do not cover all directions. Observation with photos:
https://www.taivaanvahti.fi/observations/show/81304
https://www.taivaanvahti.fi/observations/show/81296
von Timo Kuhmonen
4. Mär 2019, 08:19
Forum: Allgemeines Forum
Thema: KH-clouds, Taivaanvahti (2018, 2019 etc)
Antworten: 2
Zugriffe: 484

Re: KH-clouds, Taivaanvahti (2018, 2019 etc)

fyi,

Another set of KH clouds, observation by Jukka K. (Kristiinankaupunki, Finland)
https://www.taivaanvahti.fi/observations/show/81530
von Timo Kuhmonen
31. Jan 2019, 21:20
Forum: Polarlicht Forum
Thema: [Sammeltheread] Polarlicht-Vorwarnungen 2019
Antworten: 92
Zugriffe: 13393

Re: [Sammeltheread] Polarlicht-Vorwarnungen 2019

fyi, In the place at where I am currently located (in central Finland) it is now light snowfall :-( Weather estimates give "partially cloudy" for the night. It does not look good at the moment...
von Timo Kuhmonen
28. Jan 2019, 21:31
Forum: Allgemeines Forum
Thema: [Halo] "Cable -halos" in Taivaanvahti (various years)
Antworten: 9
Zugriffe: 1144

Re: "Cable -halos" in Taivaanvahti (various years)

fyi, Another set of halos, I'll update into this thread... Observation from Kouvola / Finland. https://www.taivaanvahti.fi/observations/show/80870 Although there is both moonlight and artificial light halos visible - the halo forms distorted by powerlines looks like originated from a bright lamp und...
von Timo Kuhmonen
23. Jan 2019, 16:11
Forum: Allgemeines Forum
Thema: [HALO] Surface subparhelia, Taivaanvahti (22.1.2019)
Antworten: 0
Zugriffe: 149

[HALO] Surface subparhelia, Taivaanvahti (22.1.2019)

fyi, I'll post a link if someone is interested.... Documented as surface subparhelia (on water ice cover). Observation by Pekka L. (Helsinki, Finland) https://www.taivaanvahti.fi/observations/show/80683 PS: Although I have seen many times the frozen lake surfaces, this halo type I haven' t seen yet....
von Timo Kuhmonen
22. Jan 2019, 20:31
Forum: Polarlicht Forum
Thema: Polarlichtarchive verschiedener Länder und Regionen
Antworten: 4
Zugriffe: 1154

Re: Polarlichtarchive verschiedener Länder und Regionen

Liebe Mitglieder, ich suche für meine Doktorarbeit an der Universität Jena nach Polarlicht Sichtungen der letzten Jahrzehnte und benötige eine möglichst gute globale Abdeckung. Daher bin ich auf der Suche nach Archiven für verschiedene Länder. Insbesondere wäre Nordamerika interessante, aber auch A...
von Timo Kuhmonen
22. Jan 2019, 19:28
Forum: Allgemeines Forum
Thema: [Halo] Rare surface halos, Taivaanvahti (3.1.2019)
Antworten: 2
Zugriffe: 375

Re: Rare surface halos, Taivaanvahti (3.1.2019)

Another observation from 3.1.2019, by Tero Sipinen (Kouvola, Finland)
https://www.taivaanvahti.fi/observations/show/80125