Jyväskylän Sirius ry, Finland
Astronomical associationFounded 1959230 members, 2 observatoriesOne of the most active astro clubs in Finland
62 N25 E
Nyrölä ObservatoryCountryside amateur observatory20 kms Northwest of JyväskyläTop gears: large robotic telescopes
and CCD-imagerVery dark siteActive group of observers
Present Equipment Meade LX200 telescopes
16 and 10 inch models SBIG ST8XE CCD-imager
AO-7 active optics device BVR filter set
Optec TCF-S focuser Optec f5 focal reducer Watec N100 video camera
GPS time inserter 256 kbps Internet, 2Mb/s
to Scientific Observing Programs
Kataklysmic variables (AAVSO, VSNET, CBA)
Gamma-ray bursters (AAVSO) Blazar monitoring (WEBT, GTN) Asteroids (MPC) Asteroid light curves (Helsinki university) Jovian moons (Armagh university) Exoplanets (transitsearch.org) Comets (NASA STSP) Triton (TritonWatch)
Asteroid Light Curves
From the light curves it is possible to compute the 3-D model of the asteroid
Collaboration with University of Helsinki
Several amateurs are helping to provide the light curveshttp://www.astro.helsinki.fi/~jtpesone/harras.html
Small Telescope Science Program
Observing comet 2P/Tempel1 for NASA Deep Impact mission
Observing campaign for advanced amateurs and professional observatoties
http://deepimpact.astro.umd.edu/stsp/
26.8.2000. Nyrölä40cm Meade LX200,
R-filter
9.9.2000. Nyrölä40cm Meade LX200,
R-filter
Images of comet 2P/Tempel 1
Light echo of V838 Monocerotis
1989 - DSS2R
Eksoplanet HD 209458b
SAO 107623Spectral: F8Distance: 153 lyMagnitude: 7.65RA: 22h 03m 10s Dec:+18°53'03"
Pegasus
Blazars
Active galaxy nuclei (AGNs) billions of light years away
Engine: super massive black hole (or several!)
GCN -The GRB Coordinates Networkhttp://lheawww.gsfc.nasa.gov/docs/gamcosray/legr/bacodine/gcn_main.html
Nyrölä
The first success:Gamma-ray burst GRB000926
Palomar observatory Nyrölä Observatory Digital Sky Survey II September 28, 2000
Delta t=43 hrs - mag C=20Exposure 17 x 240s
Multicolour light curve of fading GRB afterglow
The first GRB OT light curve by amateur astronomers!