This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: About how many stars has the Hipparcos mission given us accurate distance data on? A) about ... (Read 55 times)

itsmyluck

  • Hero Member
  • *****
  • Posts: 546
on: Jul 27, 2018
About how many stars has the Hipparcos mission given us accurate distance data on?
 
  A) about 3,000, about half of what you can see with the naked eye alone
  B) over 6000, the visible naked eye stars and some seen in binoculars
  C) 60,000, those within about 100 light years of us
  D) a million, those with parallaxes of .005 or larger
  E) over 100 billion, almost every star in the galaxy

Question 2

Ice has been detected near the poles of both the Moon and Mercury.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Dominic

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

TRUE


itsmyluck

  • Hero Member
  • *****
  • Posts: 546
Reply #2 on: Jul 27, 2018
TY


Dominic

  • Sr. Member
  • ****
  • Posts: 328
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Rising and Setting of Stars at the Equator Rising and Setting of Stars at the Equator
Post–Main-Sequence Evolution of Low-Mass Stars Post–Main-Sequence Evolution of Low-Mass Stars
Type of Interactions, Model, Examples and Dependence of Energy on Distance Type of Interactions, Model, Examples and Dependence of Energy on Distance
Histograms - Analysis and Data Histograms - Analysis and Data
Survivorship curves. Blue lines are theoretical curves. Red dots are data from field studies. Survivorship curves. Blue lines are theoretical curves. Red dots are data from field studies.
Linkage Data from 39 Families with Cystic Fibrosis Linkage Data from 39 Families with Cystic Fibrosis
Video: Wound Cultures

For a complete list of videos, visit our video library