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Ursa Astronomical Association (Finnish: Tähtitieteellinen yhdistys Ursa ry) is the largest astronomical association in Finland. Ursa was founded on 2 November 1921. Founding members include a renowned Finnish astronomer Yrjö Väisälä. In 1926 Ursa established the Ursa Observatory in Kaivopuisto district of Helsinki. In 2007 the Tähtikallio Observatory & Education Center was established in Artjärvi, its current equipment includes an Astrofox 36" Folded Newtonian Open tube telescope, an Alluna 16" Ritchey-Chrétien telescope, a Meade 16" LX200GPS Schmidt-Cassegrain telescope, a Sky-Watcher ED 120mm refractor telescope fitted with a Baader AstroSolar Solar Filter and a piggybacked Coronado SolarMax 40 H-Alpha telescope. Ursa's primary functions include advancing amateur astronomy and astronomical education.[1] They have published a magazine Tähdet ja avaruus since 1971 and have provided awards to exceptional members of amateur astronomy for significant astronomical observations since 1988.[2][3] Anyone can join Ursa for an annual fee.[4]
Tähtitieteellinen yhdistys Ursa ry | |
 | |
| Founded | November 2, 1921 |
|---|---|
| Focus | Amateur astronomy |
| Location | |
Area served | Finland |
| Membership | 18,218 (in 2016) |
| Website | www.ursa.fi |
Sections
editThe organization has thirteen sections specialized in different aspects of amateur astronomy (and meteorology):
- Solar section
- Halo section
- Instrument section
- Atmospheric optical phenomena section
- Clubs and organization
- Lunar, planetary and cometary section
- Mathematics and information technology section
- Meteor section
- Storm chasing section
- Minor planet and occultation section
- Aurora section
- Deep sky section
- Satellite section
In addition, Ursa has two loosely organized hobby groups:
- Variable stars
- Observation conditions
See also
editReferences
edit- ^ Repo, Sirpa (2021-08-23). "Ovatko tähdet hukassa? Tähtitaivaaseen voi nyt perehtyä uudella tavalla" [Are the stars lost? You can now familiarize yourself with the starry sky in a new way]. Helsingin Uutiset (in Finnish). Retrieved 2024-06-12.
- ^ "A brief history of Ursa". Ursa. 2004-09-02. Retrieved 2008-01-30.
- ^ Kurki, Elena (2020-12-05). "Uuden revontulimuodon ensihavainnon tehnyt turkulainen tähtiharrastaja palkittiin Stella Arctilla" [The star enthusiast from Turku who made the first observation of a new form of Aurora Borealis was awarded (the) Stella Arct (Award)]. Turku Sanomat (in Finnish). Retrieved 2024-06-12.
- ^ "Tähtitieteellinen yhdistys Ursa: Etusivu". www.ursa.fi (in Finnish). Retrieved 2018-02-21.
