In Hercules constallation is located an exoplanet named TrES-4. This exoplanet was discovered last year and the discovery was published in August. Its radius is even 1.67 Rjup and so it is the biggest known exoplanet. This object lies 1435 ly far away from the Earth. TrES-4 diminishes light of its host star about 0.01 magnitude. Now […]
Supernovae SN2007kc, SN2007kf and SN2007kg.
We observed three recently found supernovae 25/26.9.2007 night at Taurus Hill Observatory using CCD-camera. Observers: Veli-Pekka Hentunen and Markku Nissinen.
Supernovae SN2007il, SN2007ir and SN2007is.
These three supernovae have been found by Lick Observatory Supernova Search in USA. SN2007il was found 10th September, SN2007ir was found 12th September and SN2007is was found 14th September by LOSS. Photographers at 16/17.9.2007 night at Taurus Hill Observatory: Veli-Pekka Hentunen and Markku Nissinen.
Supernovae SN2007iq and SN2007hb.
Supernovae SN2007iq and SN2007hb hves been photographed night of 14/15 September 2007. Observer: Veli-Pekka Hentunen.
Supernovae SN2007hu and SN2007hv.
Photographs are taken 11/12. September 2007 night by Veli-Pekka Hentunen and Markku Nissinen at Taurus Hill Observatory.
Supernova SN2007hj photographed at Taurus Hill Observatory.
Observers Veli-Pekka Hentunen and Markku Nissinen. 7.9/8.9.2007 at THO. (Tämä uutinen suomeksi)
Extrasolar planet HAT-P-3b transit observed at THO at 30th/31st of August.
K-type star GSC3488-819 in Ursa Major constallation has an exoplanet named HAT-P-3b. Its diameter is 0.89 Rjup and it diminishes light of its host star about 0.015 magnitude and its distance is 456 ly. This exoplanet was discovered last spring and now it is observed first time at Taurus Hill Observatory Varkaus at 30th/31st of […]
SN2007gw observed at Taurus Hill Observatory.
Supernova SN2007gw was found by Koichi Itagaki 20.8.2007. It is in galaxy NGC4161. We took CCD image at THO 30/31.8.2007 night. Observers: Veli-Pekka Hentunen and Markku Nissinen. (Tämä uutinen suomeksi)
TrES-3 exoplanet light curve measured at THO.
TrES-3 (GSC3089-929) located 800 ly away in the constallation Hercules is a little smaller star than Sun. It has an exoplanet with an orbital period of only 1.306 days and so it is one of the shortest orbital period of the known exoplanets. Semimajor axis of TrES-3 exoplanet is 1.295 Rjup and it diminishes light of its host star even […]
Exoplanet XO-2b transit observed at THO.
The K dwarf star XO-2 (GSC3413-5) has an exoplanet with an orbital period of 2.616 days and mass 0.57 Mjup. The host star XO-2 has a common proper companion with 31“separation and these stars are nearly identical. The distance of this object is about 486 ly. We observed XO-2b exoplanet transit first time at Taurus […]
Weather at THO
All Sky Cameras
