AURIGA (April schedule)

     Auriga constellation is winter constellation and it is in best position for evening observing in February when it is high on the sky over our heads at the zenith.
     In November in the evening it is climbing on the northeastern sky, in December it is high on the eastern sky, in January it is higher on the eastern sky close to the zenith, in February it is in best position for evening observing at the zenith, in March it is high on the northwestern sky and in April is on the northwestern sky.
     We will observe it in April when it is on the northwestern sky before it gets too low over the north horizon.

Double and multiple stars

     Theta Aurigae - The visual magnitude of this star is 2.6 and it is about 170 light years away from the Earth. It is probably subgiant star with mass about three times the mass of our Sun and diameter five times larger than the diameter of our Sun, and surface temperature about 10,000 K.
     The companion has visual magnitude 7.1 and is about 4 arc seconds away on the sky from the primary component. It is main sequence star a bit larger and hotter than our Sun. In reality it is orbiting the main component at distance about 30 billion km away. 

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

     NGC 1664 - It is an open cluster of stars. Its visual magnitude on the sky is 7.6 and it is about 4,000 light years away from the Earth.
     M 36 - It is an open cluster of stars. Its visual magnitude on the sky is 6.3 and it is visible even in binoculars. Lies about 4,000 light years away from the Earth. Its diameter is about 15 light years and is about 250 million years old.
     M 37 - It is an open cluster of stars. Its visual magnitude on the sky is 6.2 and it is visible even in binoculars. Lies about 4,500 light years away from the Earth. Its diameter is about 25 light years and it is about 500 million years old. It is big and beautiful object when observed in a telescope and contains a lot of stars. Given its age we can expect to see a lot of red giant stars which are members of the cluster. One of them is located in the center of the cluster and is the brightest star in the cluster.
     M 38 - It is an open cluster of stars. Its visual magnitude on the sky is 7.4 and it is visible even in binoculars. Lies about 4,200 light years away from the Earth. Its diameter is about 25 light years and is about 250 million years old. The stars from this cluster form a strange pattern on the sky. Also contains a lot of orange giants and subgiant stars and one yellow giant.
     NGC 1907 - It is an open cluster of stars. Its visual magnitude on the sky is 8.2 and is about 4,200 light years away from the Earth. It is very close to M 38, they are about 30 arc seconds apart on the sky. It is smaller and dimmer than M 38. Its diameter is about 25 light years and about 500 million years old.