Tähtitieteellinen yhdistys Ursa

Ilmakehän optiset ilmiöt

Halomeeting in Artjärvi 14–16 July 2006


Friday 14 July

1600Meeting starts


2000Talks session:
Jukka RuoskanenAutomatic Halo Recognition from Photographs
Marko RiikonenOptical phenomena caused by thin algal films on water surface
2100Best photographs show I (everybody welcome to present their best photos)
NightWatching noctilucent clouds, frying sausages by the fire, grill warm

Saturday 15 July

1000Talks session:
Lars GislenComputer algorithm for divergent-light haloes
Claudia Hinz20 years of halo observations in Germany
Link: AKM/SHO (Germany)
Yuji AyatsukaAtmospheric phenomena in Japan
Link: Y.Aya's Garden/Skyscape Hill (mostly Japanese)


1400Talks session:
Jarmo MoilanenThe 1920 Kuusankoski display
Walt TapeHalo poles I: for non-contact arcs
Some photos
1500Coffee break
1515Talks session:
Peter-Paul Hattinga  
Observation instructions: why, how, for who?
Jari LuomanenPixel workout - exposure, histogram and bit depth in halo photography
Timo KuhmonenHDR-technique application to halo photographs
2030Best photographs show II (everybody welcome to present their best photos)
NightWatching noctilucent clouds, frying sausages by the fire, grill warm, sauna warm

Sunday 16 July

1000Talks session:
Walt TapeHalo poles II: for contact arcs
Veikko MäkeläAtmospheric phenomena in time lapse photography
(NLC video, avi, 8MB)
Timo KuhmonenGPS in halo photography
Marko RiikonenStacking technique in halo photography
1300Halo stacking in practise -workshop

Meeting ends


Mika AhoSami Luoma-PukkilaMarko Riikonen
Yuji AyatsukaJari LuomanenJukka Ruoskanen
Reima EresmaaIsmo LuukkonenEero Savolainen
Lars GislenMarko MikkiläHolger Seipelt
Claudia HinzJarmo MoilanenJohan Stenberg
Jenni Elina HolopainenVeikko MäkeläWalter Tape
Lauri KangasTimo NousiainenPatrik Trncak
Jarkko KorhonenMarko PekkolaPeter-Paul Hattinga Verchure
Timo KuhmonenMartin PopekMarja Wallin
Mikko Kurki


The meeting place was new Ursa observatory in the southern Finland countryside. Address of the observatory is Kimonkyläntie 951. Two links showing the location on the map:1, 2

There are beds for 30 people in the observatory, and stay is free of charge. If more people are coming, tents can be set outside. The participant number was 28.

See also

Photo galleries

RSS Zeniitti

RSS Taivaanvahti

RSS Avaruus.fi-foorumi