Which method would you use to obtain the distance to each of the following?
an asteroid crossing earth’s orbit
a star astronomers believe to be no more than 50 light-years from the sun
a tight group of stars in the milky way galaxy that includes a significant number of variable stars
a star that is not variable but for which you can obtain a clearly defined spectrum

a is the best answer your welcome

the following is queen elizabeth’s purposes:

- to encourage the parliament that the technique of picking successors to the seat based merely on birthright needs to be reviewed.

- (not) to convince the parliament that her kid should not be measured as a likely choice for heir to the english power.

- to persuade the parliament that merely since she has a child does not assure that the kid will be a capable leader.

- to sway the parliament how shattering it could be if they proceeded discourteously concerning her or her child.

b. a lightning bug, plug of grass, and a worm