If a star is found by spectroscopic observations to be about 500 parsecs distant, its parallax is ...

Author Question: If a star is found by spectroscopic observations to be about 500 parsecs distant, its parallax is ... (Read 62 times)

deesands

Hero Member
Posts: 514

on: Jul 27, 2018

If a star is found by spectroscopic observations to be about 500 parsecs distant, its parallax is

A) .2.
B) .5.
C) .02.
D) .002.
E) .005.

Question 2

Orbital resonances are a characteristic of some extrasolar systems but are not seen in our solar system.

Indicate whether the statement is true or false

CharlieArnold

Sr. Member
Posts: 319

Reply #1 on: Jul 27, 2018

Answer to Question 1

D

Answer to Question 2

TRUE

Need homework help now?

Ask unlimited questions for free

Ask a Question

deesands

Hero Member
Posts: 514

Reply #2 on: Jul 27, 2018

Thank you!

CharlieArnold

Sr. Member
Posts: 319

Reply #3 on: Jul 27, 2018

Always glad to help...

« previous next »

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.