there's a star named Sirius, but no planet .... sorry
Neither Sirius A nor Sirius B have any known planets.
Yes
sirius (dogstar)
Sirius is a star (actually, a binary star), so none, as stars do not have moons. Either or both of the stars that comprise Sirius could theoretically have planets which have moons, but if so, we don't know about them yet.
The brightest visible objects are: -- the sun -- the moon -- the planet Venus -- the planet Jupiter -- the planet Saturn -- the planet Mars -- the star Sirius
No. There is no such thing as an "earth-like star" as Earth is a planet, not a star. Sirius A is a star that is larger and brighter than the sun.
In Sirius' bedroom, Harry found a two-way mirror that allowed him to communicate with Sirius in secret. This mirror became an important communication tool between Harry and Sirius throughout the series.
the dog star is called sirius and is located south west of Orion belts in the southern hemisphere
It was deduced mathematically in 1844 by Bessel, but Sirius B was not seen until 1862 by Alvin Clark.
*SPOILER ALERT FOR PRISONER OF AZKABAN* Sirius didn't actually betray the Potters at all, that was Peter Pettigrew.
See related link for a picture of Sirius and it's binary. Sirius B can be found in the bottom left corner.
In Harrys third school year i mean the star?