Nyrölä Observatory Petri Tikkanen Jyväskylän Sirius ry.

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Presentation transcript:

Nyrölä Observatory Petri Tikkanen Jyväskylän Sirius ry

Jyväskylän Sirius ry, Finland  Astronomical association  Founded 1959  230 members, 2 observatories  One of the most active astro clubs in Finland 62 N 25 E

Nyrölä Observatory  Countryside amateur observatory  20 kms Northwest of Jyväskylä  Top gears: large robotic telescopes and CCD-imager  Very dark site  Active 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

From pretty pictures...

Moon

Planets: Jupiter and Saturn

M1 - Supernova remnant

M51 – The Whirlpool Galaxy

Sunflower Galaxy M63

NGC 6951 and two supernovae

NGC3786 and SN2004bd

Galaxy clusters – Stephen’s Quintet

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)

Eclipsing dwarf nova IY UMa

WZ Sagittae superoutburst 2001 Over 8500 images taken at Nyrölä 7-10/2001

SDSS Light curve from Oct 22, 2001

Mercury transit May 7, 2003

Lunar eclipse of November 8/9, 2003

Long lost NEO asteroid Hermes : :19 UT

Asteroid hunting

Minor planet (22978) Nyrölä  Discovered at Nyrola on March 15, 1999  Diameter about 15 kms

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 curves

Binary asteroid (1089) Tama Eclipse Transit?

Comets C/2002 T7 (Linear)

Small Telescope Science Program  Observing comet 2P/Tempel1 for NASA Deep Impact mission  Observing campaign for advanced amateurs and professional observatoties

Nyrölä 40cm Meade LX200, R-filter Nyrölä 40cm Meade LX200, R-filter Images of comet 2P/Tempel 1

Mutual events of Jovian moons Callisto occults Europe Jan 16, 2003

Light echo of V838 Monocerotis DSS2R

Eksoplanet HD b SAO Spectral: F8 Distance: 153 ly Magnitude: 7.65 RA: 22h 03m 10s Dec:+18°53'03" Pegasus

Exoplanet transit

Observation of Sep 15, 2000 HD images with 10 s integration

Final light curve This observation inspired transitsearch.org !

Blazars  Active galaxy nuclei (AGNs) billions of light years away  Engine: super massive black hole (or several!)

3C66A observation of Sep 25, 2003

Blazar S light curves

GCN -The GRB Coordinates Network Nyrölä

The first success: Gamma-ray burst GRB Palomar observatoryNyrölä Observatory Digital Sky Survey IISeptember 28, 2000 Delta t=43 hrs - mag C=20 Exposure 17 x 240s

Negative observation of a short-hard GRB

Color image of GRB afterglow The first colour image of GRB afterglow by amateurs!

Multicolour light curve of fading GRB afterglow The first GRB OT light curve by amateur astronomers!

GRB030329: ‘Monster GRB’ Combined Amateur Light curve (by AAVSO)

Venus transit  Binoculars & telescopes  Digital cameras  Live video feed to internet (how?)

Auroraborealis

Questions? Petri Tikkanen tel:

Involvement with GRBs  GRB team formed in 1999  Joined to GCN network in January, 1999  Pager alerts to cell phones +  GCN Circular subscription  Real time Socket Alerts since February, 2001  Joined to AAVSO GRB Network Oct, 2000  alerts + chart service  14 published GCN Circulars