Astronomy help
1) Suppose you could observe stellar parallax from the orbit of Neptune.
...
Physics, 18.03.2021 01:00 jmullins3611
Astronomy help
1) Suppose you could observe stellar parallax from the orbit of Neptune.
1) Would it be easier or more difficult to measure stellar distances?
a) Neptune has the greater mass and radius than Earth. Therefore, parallaxes obtained from the Neptune would be smaller, and it would be more difficult to measure stellar distances.
b) Neptune has the greater mass and radius than Earth. Therefore, parallaxes obtained from the Neptune would be greater, and it would be easier to measure stellar distances.
c) Neptune has the greater orbital distance than Earth. Therefore, parallaxes obtained from the Neptune would be smaller, and it would be more difficult to measure stellar distances.
d) Neptune has the greater orbital distance than Earth. Therefore, parallaxes obtained from the Neptune would be greater, and it would be easier to measure stellar distances.
2) How would stellar parallax observed from Neptune differ from the stellar parallax we observe from Earth?
(parallax from Neptune/parallax from earth) =
3) Describe what would happen to the surface temperature of a star if its radius doubled but there was no change in luminosity.
the answer is = Luminosity increases both with increasing radius and increasing temperature. Therefore, a lower temperature would be required to maintain the star's constant luminosity.
3) By what factor would the temperature of the star change?
(T initial / T final)=
This part I don't know where to start
Answers: 3
Physics, 21.06.2019 15:30
Tungsten-filament lightbulb emits light based on the temperature of the filament. which phenomenon does this demonstrate?
Answers: 2
Physics, 22.06.2019 13:30
If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?
Answers: 2
Physics, 22.06.2019 18:00
Which is the most accurate name for the ionic compound cas?
Answers: 1
Physics, 09.10.2019 04:20
Mathematics, 09.10.2019 04:20
Computers and Technology, 09.10.2019 04:20