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

Author Question: Why is the Hyades Cluster important for building up a catalog of the true luminosities of ... (Read 16 times)

yoooooman

  • Hero Member
  • *****
  • Posts: 557
on: Jul 27, 2018
Why is the Hyades Cluster important for building up a catalog of the true luminosities of main-sequence stars?
 
  A) It is close enough to us that the distance to its stars can be found by stellar parallax.
  B) It's a cluster that has been photographed over many decades, so we know how the stars vary in brightness.
  C) It contains many Cepheid variable stars that can be used to determine its distance.
  D) It is an extremely bright star cluster.
  E) It is an old globular cluster whose age we can determine very accurately by measuring its main-sequence turn-off point.

Question 2

Galileo is credited with designing the first reflector telescope.
 
  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

meganlapinski

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

FALSE


yoooooman

  • Member
  • Posts: 557
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

fatboyy09

  • Member
  • Posts: 358
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

It's important to take all your antibiotics It's important to take all your antibiotics
In countries where water can be contaminated, breastfeeding is an important option for the health of ... In countries where water can be contaminated, breastfeeding is an important option for the health of ...
Teresa Hubbard and Alexander Birchler, Detached Building. Teresa Hubbard and Alexander Birchler, Detached Building.
Building a Client Base Cont. Building a Client Base Cont.
Remote sensing and GIS are important tools Remote sensing and GIS are important tools
Increased acidity inhibits the growth of coral and other carbonate shell-building organisms Increased acidity inhibits the growth of coral and other carbonate shell-building organisms
Video: Embryonic development - Week 4

For a complete list of videos, visit our video library