SlideShare a Scribd company logo
Below are the arguments Heber Curtis put forward in the Curtis-Shapley debate on the nature of
spiral nebulae. Which of these arguments are still regarded as basically correct? Select all correct
answers; there may be more than one
-The spectra of spiral nebulae (absorption spectrum combined with an emission spectrum) could
be explained as the spectra of normal stars plus the spectra of star-forming nebulae.
- The Milky Way is about 15,000 light-years in radius.
- Spiral nebulae have a band of obscuring material around them, just like the dark lane of
the Milky Way.
- The Sun is near the center of the Milky Way.
Solution
The correct answer is spiral nebulae have a band of obscuring material around them, just like the
dark lane of the milky way.

More Related Content

More from rishabjain5053

The universe began 13 7 billion years ago, is most directly an exa.pdf
The universe began 13 7 billion years ago,  is most directly an exa.pdfThe universe began 13 7 billion years ago,  is most directly an exa.pdf
The universe began 13 7 billion years ago, is most directly an exa.pdf
rishabjain5053
 
The Stevens Company provided $57000 of services on acco.pdf
The Stevens Company provided $57000 of services on acco.pdfThe Stevens Company provided $57000 of services on acco.pdf
The Stevens Company provided $57000 of services on acco.pdf
rishabjain5053
 
The papillae on the tongue that do not contain any taste buds are the.pdf
The papillae on the tongue that do not contain any taste buds are the.pdfThe papillae on the tongue that do not contain any taste buds are the.pdf
The papillae on the tongue that do not contain any taste buds are the.pdf
rishabjain5053
 
QUESTION 13 Which of the following benefits is a component of Social .pdf
QUESTION 13 Which of the following benefits is a component of Social .pdfQUESTION 13 Which of the following benefits is a component of Social .pdf
QUESTION 13 Which of the following benefits is a component of Social .pdf
rishabjain5053
 
Padre, Inc., buys 80 percent of the outstanding common stock of Sier.pdf
Padre, Inc., buys 80 percent of the outstanding common stock of Sier.pdfPadre, Inc., buys 80 percent of the outstanding common stock of Sier.pdf
Padre, Inc., buys 80 percent of the outstanding common stock of Sier.pdf
rishabjain5053
 
Operating Systems Structure1- Explain briefly why the objectives o.pdf
Operating Systems Structure1- Explain briefly why the objectives o.pdfOperating Systems Structure1- Explain briefly why the objectives o.pdf
Operating Systems Structure1- Explain briefly why the objectives o.pdf
rishabjain5053
 
Need help with this java code. fill in lines where needed. Also, not.pdf
Need help with this java code. fill in lines where needed. Also, not.pdfNeed help with this java code. fill in lines where needed. Also, not.pdf
Need help with this java code. fill in lines where needed. Also, not.pdf
rishabjain5053
 
IP has no mechanism for error reporting or error-correcting. ICMPv4 .pdf
IP has no mechanism for error reporting or error-correcting. ICMPv4 .pdfIP has no mechanism for error reporting or error-correcting. ICMPv4 .pdf
IP has no mechanism for error reporting or error-correcting. ICMPv4 .pdf
rishabjain5053
 
Informed Consent is a significant requirement for all provider types.pdf
Informed Consent is a significant requirement for all provider types.pdfInformed Consent is a significant requirement for all provider types.pdf
Informed Consent is a significant requirement for all provider types.pdf
rishabjain5053
 
In the MVC Architecture, why is it important to keep the model, view.pdf
In the MVC Architecture, why is it important to keep the model, view.pdfIn the MVC Architecture, why is it important to keep the model, view.pdf
In the MVC Architecture, why is it important to keep the model, view.pdf
rishabjain5053
 
in roughly 400 words please describe3 affective outcomes of diver.pdf
in roughly 400 words please describe3 affective outcomes of diver.pdfin roughly 400 words please describe3 affective outcomes of diver.pdf
in roughly 400 words please describe3 affective outcomes of diver.pdf
rishabjain5053
 
Im having issues with two homework questions. I get the gist of th.pdf
Im having issues with two homework questions. I get the gist of th.pdfIm having issues with two homework questions. I get the gist of th.pdf
Im having issues with two homework questions. I get the gist of th.pdf
rishabjain5053
 
Implement the interface you wrote for Lab B (EntryWayListInterface)..pdf
Implement the interface you wrote for Lab B (EntryWayListInterface)..pdfImplement the interface you wrote for Lab B (EntryWayListInterface)..pdf
Implement the interface you wrote for Lab B (EntryWayListInterface)..pdf
rishabjain5053
 
I am trying to add the units to my println in Java, what I have so f.pdf
I am trying to add the units to my println in Java, what I have so f.pdfI am trying to add the units to my println in Java, what I have so f.pdf
I am trying to add the units to my println in Java, what I have so f.pdf
rishabjain5053
 
How does an understanding of management and organizational behavior .pdf
How does an understanding of management and organizational behavior .pdfHow does an understanding of management and organizational behavior .pdf
How does an understanding of management and organizational behavior .pdf
rishabjain5053
 
Hey, I need some help coding this C++ assignment.ObjectivesThis.pdf
Hey, I need some help coding this C++ assignment.ObjectivesThis.pdfHey, I need some help coding this C++ assignment.ObjectivesThis.pdf
Hey, I need some help coding this C++ assignment.ObjectivesThis.pdf
rishabjain5053
 
Explain the rise of social movement unionism (250 word counts).pdf
Explain the rise of social movement unionism  (250 word counts).pdfExplain the rise of social movement unionism  (250 word counts).pdf
Explain the rise of social movement unionism (250 word counts).pdf
rishabjain5053
 
Explain in detail the Next Generation Networks (NGN). Draw its archi.pdf
Explain in detail the Next Generation Networks (NGN). Draw its archi.pdfExplain in detail the Next Generation Networks (NGN). Draw its archi.pdf
Explain in detail the Next Generation Networks (NGN). Draw its archi.pdf
rishabjain5053
 
Discussshare examples of poorly writteninappropriate email message.pdf
Discussshare examples of poorly writteninappropriate email message.pdfDiscussshare examples of poorly writteninappropriate email message.pdf
Discussshare examples of poorly writteninappropriate email message.pdf
rishabjain5053
 
Description (Part A) In this lab you will write a Queue implementati.pdf
Description (Part A) In this lab you will write a Queue implementati.pdfDescription (Part A) In this lab you will write a Queue implementati.pdf
Description (Part A) In this lab you will write a Queue implementati.pdf
rishabjain5053
 

More from rishabjain5053 (20)

The universe began 13 7 billion years ago, is most directly an exa.pdf
The universe began 13 7 billion years ago,  is most directly an exa.pdfThe universe began 13 7 billion years ago,  is most directly an exa.pdf
The universe began 13 7 billion years ago, is most directly an exa.pdf
 
The Stevens Company provided $57000 of services on acco.pdf
The Stevens Company provided $57000 of services on acco.pdfThe Stevens Company provided $57000 of services on acco.pdf
The Stevens Company provided $57000 of services on acco.pdf
 
The papillae on the tongue that do not contain any taste buds are the.pdf
The papillae on the tongue that do not contain any taste buds are the.pdfThe papillae on the tongue that do not contain any taste buds are the.pdf
The papillae on the tongue that do not contain any taste buds are the.pdf
 
QUESTION 13 Which of the following benefits is a component of Social .pdf
QUESTION 13 Which of the following benefits is a component of Social .pdfQUESTION 13 Which of the following benefits is a component of Social .pdf
QUESTION 13 Which of the following benefits is a component of Social .pdf
 
Padre, Inc., buys 80 percent of the outstanding common stock of Sier.pdf
Padre, Inc., buys 80 percent of the outstanding common stock of Sier.pdfPadre, Inc., buys 80 percent of the outstanding common stock of Sier.pdf
Padre, Inc., buys 80 percent of the outstanding common stock of Sier.pdf
 
Operating Systems Structure1- Explain briefly why the objectives o.pdf
Operating Systems Structure1- Explain briefly why the objectives o.pdfOperating Systems Structure1- Explain briefly why the objectives o.pdf
Operating Systems Structure1- Explain briefly why the objectives o.pdf
 
Need help with this java code. fill in lines where needed. Also, not.pdf
Need help with this java code. fill in lines where needed. Also, not.pdfNeed help with this java code. fill in lines where needed. Also, not.pdf
Need help with this java code. fill in lines where needed. Also, not.pdf
 
IP has no mechanism for error reporting or error-correcting. ICMPv4 .pdf
IP has no mechanism for error reporting or error-correcting. ICMPv4 .pdfIP has no mechanism for error reporting or error-correcting. ICMPv4 .pdf
IP has no mechanism for error reporting or error-correcting. ICMPv4 .pdf
 
Informed Consent is a significant requirement for all provider types.pdf
Informed Consent is a significant requirement for all provider types.pdfInformed Consent is a significant requirement for all provider types.pdf
Informed Consent is a significant requirement for all provider types.pdf
 
In the MVC Architecture, why is it important to keep the model, view.pdf
In the MVC Architecture, why is it important to keep the model, view.pdfIn the MVC Architecture, why is it important to keep the model, view.pdf
In the MVC Architecture, why is it important to keep the model, view.pdf
 
in roughly 400 words please describe3 affective outcomes of diver.pdf
in roughly 400 words please describe3 affective outcomes of diver.pdfin roughly 400 words please describe3 affective outcomes of diver.pdf
in roughly 400 words please describe3 affective outcomes of diver.pdf
 
Im having issues with two homework questions. I get the gist of th.pdf
Im having issues with two homework questions. I get the gist of th.pdfIm having issues with two homework questions. I get the gist of th.pdf
Im having issues with two homework questions. I get the gist of th.pdf
 
Implement the interface you wrote for Lab B (EntryWayListInterface)..pdf
Implement the interface you wrote for Lab B (EntryWayListInterface)..pdfImplement the interface you wrote for Lab B (EntryWayListInterface)..pdf
Implement the interface you wrote for Lab B (EntryWayListInterface)..pdf
 
I am trying to add the units to my println in Java, what I have so f.pdf
I am trying to add the units to my println in Java, what I have so f.pdfI am trying to add the units to my println in Java, what I have so f.pdf
I am trying to add the units to my println in Java, what I have so f.pdf
 
How does an understanding of management and organizational behavior .pdf
How does an understanding of management and organizational behavior .pdfHow does an understanding of management and organizational behavior .pdf
How does an understanding of management and organizational behavior .pdf
 
Hey, I need some help coding this C++ assignment.ObjectivesThis.pdf
Hey, I need some help coding this C++ assignment.ObjectivesThis.pdfHey, I need some help coding this C++ assignment.ObjectivesThis.pdf
Hey, I need some help coding this C++ assignment.ObjectivesThis.pdf
 
Explain the rise of social movement unionism (250 word counts).pdf
Explain the rise of social movement unionism  (250 word counts).pdfExplain the rise of social movement unionism  (250 word counts).pdf
Explain the rise of social movement unionism (250 word counts).pdf
 
Explain in detail the Next Generation Networks (NGN). Draw its archi.pdf
Explain in detail the Next Generation Networks (NGN). Draw its archi.pdfExplain in detail the Next Generation Networks (NGN). Draw its archi.pdf
Explain in detail the Next Generation Networks (NGN). Draw its archi.pdf
 
Discussshare examples of poorly writteninappropriate email message.pdf
Discussshare examples of poorly writteninappropriate email message.pdfDiscussshare examples of poorly writteninappropriate email message.pdf
Discussshare examples of poorly writteninappropriate email message.pdf
 
Description (Part A) In this lab you will write a Queue implementati.pdf
Description (Part A) In this lab you will write a Queue implementati.pdfDescription (Part A) In this lab you will write a Queue implementati.pdf
Description (Part A) In this lab you will write a Queue implementati.pdf
 

Recently uploaded

DRUGS AND ITS classification slide share
DRUGS AND ITS classification slide shareDRUGS AND ITS classification slide share
DRUGS AND ITS classification slide share
taiba qazi
 
Cognitive Development Adolescence Psychology
Cognitive Development Adolescence PsychologyCognitive Development Adolescence Psychology
Cognitive Development Adolescence Psychology
paigestewart1632
 
Pride Month Slides 2024 David Douglas School District
Pride Month Slides 2024 David Douglas School DistrictPride Month Slides 2024 David Douglas School District
Pride Month Slides 2024 David Douglas School District
David Douglas School District
 
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UPLAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
RAHUL
 
Hindi varnamala | hindi alphabet PPT.pdf
Hindi varnamala | hindi alphabet PPT.pdfHindi varnamala | hindi alphabet PPT.pdf
Hindi varnamala | hindi alphabet PPT.pdf
Dr. Mulla Adam Ali
 
RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3
RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3
RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3
IreneSebastianRueco1
 
How to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 InventoryHow to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 Inventory
Celine George
 
World environment day ppt For 5 June 2024
World environment day ppt For 5 June 2024World environment day ppt For 5 June 2024
World environment day ppt For 5 June 2024
ak6969907
 
PIMS Job Advertisement 2024.pdf Islamabad
PIMS Job Advertisement 2024.pdf IslamabadPIMS Job Advertisement 2024.pdf Islamabad
PIMS Job Advertisement 2024.pdf Islamabad
AyyanKhan40
 
How to Add Chatter in the odoo 17 ERP Module
How to Add Chatter in the odoo 17 ERP ModuleHow to Add Chatter in the odoo 17 ERP Module
How to Add Chatter in the odoo 17 ERP Module
Celine George
 
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
National Information Standards Organization (NISO)
 
Walmart Business+ and Spark Good for Nonprofits.pdf
Walmart Business+ and Spark Good for Nonprofits.pdfWalmart Business+ and Spark Good for Nonprofits.pdf
Walmart Business+ and Spark Good for Nonprofits.pdf
TechSoup
 
South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)
Academy of Science of South Africa
 
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdfবাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
eBook.com.bd (প্রয়োজনীয় বাংলা বই)
 
BBR 2024 Summer Sessions Interview Training
BBR  2024 Summer Sessions Interview TrainingBBR  2024 Summer Sessions Interview Training
BBR 2024 Summer Sessions Interview Training
Katrina Pritchard
 
A Independência da América Espanhola LAPBOOK.pdf
A Independência da América Espanhola LAPBOOK.pdfA Independência da América Espanhola LAPBOOK.pdf
A Independência da América Espanhola LAPBOOK.pdf
Jean Carlos Nunes Paixão
 
Life upper-Intermediate B2 Workbook for student
Life upper-Intermediate B2 Workbook for studentLife upper-Intermediate B2 Workbook for student
Life upper-Intermediate B2 Workbook for student
NgcHiNguyn25
 
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective UpskillingYour Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Excellence Foundation for South Sudan
 
Digital Artefact 1 - Tiny Home Environmental Design
Digital Artefact 1 - Tiny Home Environmental DesignDigital Artefact 1 - Tiny Home Environmental Design
Digital Artefact 1 - Tiny Home Environmental Design
amberjdewit93
 
How to Manage Your Lost Opportunities in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRMHow to Manage Your Lost Opportunities in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRM
Celine George
 

Recently uploaded (20)

DRUGS AND ITS classification slide share
DRUGS AND ITS classification slide shareDRUGS AND ITS classification slide share
DRUGS AND ITS classification slide share
 
Cognitive Development Adolescence Psychology
Cognitive Development Adolescence PsychologyCognitive Development Adolescence Psychology
Cognitive Development Adolescence Psychology
 
Pride Month Slides 2024 David Douglas School District
Pride Month Slides 2024 David Douglas School DistrictPride Month Slides 2024 David Douglas School District
Pride Month Slides 2024 David Douglas School District
 
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UPLAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
 
Hindi varnamala | hindi alphabet PPT.pdf
Hindi varnamala | hindi alphabet PPT.pdfHindi varnamala | hindi alphabet PPT.pdf
Hindi varnamala | hindi alphabet PPT.pdf
 
RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3
RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3
RPMS TEMPLATE FOR SCHOOL YEAR 2023-2024 FOR TEACHER 1 TO TEACHER 3
 
How to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 InventoryHow to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 Inventory
 
World environment day ppt For 5 June 2024
World environment day ppt For 5 June 2024World environment day ppt For 5 June 2024
World environment day ppt For 5 June 2024
 
PIMS Job Advertisement 2024.pdf Islamabad
PIMS Job Advertisement 2024.pdf IslamabadPIMS Job Advertisement 2024.pdf Islamabad
PIMS Job Advertisement 2024.pdf Islamabad
 
How to Add Chatter in the odoo 17 ERP Module
How to Add Chatter in the odoo 17 ERP ModuleHow to Add Chatter in the odoo 17 ERP Module
How to Add Chatter in the odoo 17 ERP Module
 
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
 
Walmart Business+ and Spark Good for Nonprofits.pdf
Walmart Business+ and Spark Good for Nonprofits.pdfWalmart Business+ and Spark Good for Nonprofits.pdf
Walmart Business+ and Spark Good for Nonprofits.pdf
 
South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)South African Journal of Science: Writing with integrity workshop (2024)
South African Journal of Science: Writing with integrity workshop (2024)
 
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdfবাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
বাংলাদেশ অর্থনৈতিক সমীক্ষা (Economic Review) ২০২৪ UJS App.pdf
 
BBR 2024 Summer Sessions Interview Training
BBR  2024 Summer Sessions Interview TrainingBBR  2024 Summer Sessions Interview Training
BBR 2024 Summer Sessions Interview Training
 
A Independência da América Espanhola LAPBOOK.pdf
A Independência da América Espanhola LAPBOOK.pdfA Independência da América Espanhola LAPBOOK.pdf
A Independência da América Espanhola LAPBOOK.pdf
 
Life upper-Intermediate B2 Workbook for student
Life upper-Intermediate B2 Workbook for studentLife upper-Intermediate B2 Workbook for student
Life upper-Intermediate B2 Workbook for student
 
Your Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective UpskillingYour Skill Boost Masterclass: Strategies for Effective Upskilling
Your Skill Boost Masterclass: Strategies for Effective Upskilling
 
Digital Artefact 1 - Tiny Home Environmental Design
Digital Artefact 1 - Tiny Home Environmental DesignDigital Artefact 1 - Tiny Home Environmental Design
Digital Artefact 1 - Tiny Home Environmental Design
 
How to Manage Your Lost Opportunities in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRMHow to Manage Your Lost Opportunities in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRM
 

Below are the arguments Heber Curtis put forward in the Curtis-Shapl.pdf

  • 1. Below are the arguments Heber Curtis put forward in the Curtis-Shapley debate on the nature of spiral nebulae. Which of these arguments are still regarded as basically correct? Select all correct answers; there may be more than one -The spectra of spiral nebulae (absorption spectrum combined with an emission spectrum) could be explained as the spectra of normal stars plus the spectra of star-forming nebulae. - The Milky Way is about 15,000 light-years in radius. - Spiral nebulae have a band of obscuring material around them, just like the dark lane of the Milky Way. - The Sun is near the center of the Milky Way. Solution The correct answer is spiral nebulae have a band of obscuring material around them, just like the dark lane of the milky way.