A.) Locate objects in the sky
B.)calculate the distances of objects
C.)calculate the masses of objects
D.) classify spectra
Please help!
2007-03-20 09:29:29 · 7 answers · asked by marissa 1 in Science & Mathematics ➔ Astronomy & Space
A
2007-03-20 09:32:16 · answer #1 · answered by Blunt Honesty 7 · 0⤊ 0⤋
It is A. Constellations mark off regions of the sky (meaning: apparent directions when looking from Earth).
The entire sky is divided into 88 constellations. They are given names that are attached to mythology (ancient stories). For example, a group of star could look like a warrior or a hunter. Orion
Any object (star, nebula, galaxy) that is seen in that region of the sky is said to be in Orion, simply because we must look in the direction of that group of stars when we want to look towards the object.
2007-03-20 09:38:57 · answer #2 · answered by Raymond 7 · 0⤊ 0⤋
Locate objects in the sky
2007-03-23 07:09:20 · answer #3 · answered by christy l 1 · 0⤊ 0⤋
believe they are great, while the kind of things they talk about are happening in astronomic times, they don't even know a second ahead what's going to happen to them
2007-03-20 11:35:54 · answer #4 · answered by ParaskeveTuriya 4 · 0⤊ 0⤋
i'm no astronomer, so i may be wrong, but i believe the answer is a,b and c.
not sure what d means. it may also be a reason. not sure though.
2007-03-20 09:39:24 · answer #5 · answered by jeffrey m 4 · 0⤊ 0⤋
as boundaries for different regions of the sky
2007-03-20 09:34:47 · answer #6 · answered by Anonymous · 0⤊ 0⤋
it's A and only A
2007-03-20 09:41:02 · answer #7 · answered by xooxcable 5 · 0⤊ 0⤋