LUPUS 
(June schedule)

     Lupus constellation is spring-summer constellation and it is in best position for evening observing in June when it is very low on the southern sky. We will observe it in June when it is in best position for evening observing.

Double and multiple stars

     Xi Lupi - The first component has apparent visual magnitude on the sky 5.1. It is a main sequence star,  more massive and larger and hotter than our Sun. The second component is also main sequence star with visual magnitude 5.6 on the sky and it is slightly more massive and larger than the first component. The components are separated 10 arc seconds on the sky. Their distance is about 200 light years from the Earth. 
     Eta Lupi -  
The main component has apparent visual magnitude on the sky 3.5. It is about 500 light years away from the Earth. It is hot main sequence star or subgiant star which has very recently started to expand. It is several times larger and more massive than our Sun. The companion is 7.5 magnitude star separated 16 arc seconds on the sky from the main component. It is main sequence star and more massive, larger and hotter than our Sun. If it is real companion then its orbital period is tens of thousands of years.

Deep sky objects
(will be observed only from dark location outside of the city)

     M46