« previous next »

Author Question: If a star is found by spectroscopic observations to be about 500 parsecs distant, its parallax is ... (Read 55 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


Related Topics

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?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

The Sun is the nearest star to Earth. The Sun is the nearest star to Earth.
Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do
Gravitational Lensing of Extremely Distant Galaxies Gravitational Lensing of Extremely Distant Galaxies
Types of kidney stones found in an adult. Types of kidney stones found in an adult.
Phosphorus in Phospholipids Phosphorus makes up part of the phospholipids found in cell membranes Phosphorus in Phospholipids Phosphorus makes up part of the phospholipids found in cell membranes
Sea Star Body Plan Sea Star Body Plan
Video: Bacteriophage (Virus) - Mice Experiment

For a complete list of videos, visit our video library