no
the earth moves and different seasons determine which stars come out
because they dissapear for a while.
The easiest way is to look at a picture of the star and then look at another one taken six months later. If it has moved, that can be seen on the photo when you look at it in relation to the stars in the background of the photo. That was the first method used to find the distance to the nearest stars, and it was a big surprise to find out how far they actually were.
because it longer to change
Simply stated; you take a picture of the sky (many in fact) and then take a new set 6 months later. In six months the Earth will have moved about 185 million miles (base line). Now compare photos. For some of the near stars you can measure their angular displacement (as compared to the more distant "fixed stars". You're got angle and base line - that's parallax.
the earth moves and different seasons determine which stars come out
because they dissapear for a while.
The easiest way is to look at a picture of the star and then look at another one taken six months later. If it has moved, that can be seen on the photo when you look at it in relation to the stars in the background of the photo. That was the first method used to find the distance to the nearest stars, and it was a big surprise to find out how far they actually were.
because it longer to change
Simply stated; you take a picture of the sky (many in fact) and then take a new set 6 months later. In six months the Earth will have moved about 185 million miles (base line). Now compare photos. For some of the near stars you can measure their angular displacement (as compared to the more distant "fixed stars". You're got angle and base line - that's parallax.
here it is.
in astronomy, asterism is when stars APPEAR to be forming a picture or pttern.
There are several pictures of Rick Harrison's first wife Kim on the Internet. Rick Harrison is one of the stars of the TV series Pawn Stars.
iron kills stars in space, first it produces it when its dying, moments later it will make a supernova or hypernova creating a nebula.
A group of stars that suggests a pattern is a constellation, but the picture is strictly in the mind of the viewer.
5 Stars!
A group of stars that form a picture (at least in human eyes) is known as a constellation.