4. A cometary nucleus rotates rapidly and has an albedo A = 0.05. When its surface temper- ature reaches T ~ 170 K, the ice of which it's mostly made starts to sublime and forms a gaseous coma. How far is the cometary nucleus from the Sun when the coma starts to form (in AU)?
4. A cometary nucleus rotates rapidly and has an albedo A = 0.05. When its surface temper- ature reaches T ~ 170 K, the ice of which it's mostly made starts to sublime and forms a gaseous coma. How far is the cometary nucleus from the Sun when the coma starts to form (in AU)?
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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4. A cometary nucleus rotates rapidly and has an albedo $A=0.05$. When its surface temperature reaches $T \sim 170 \mathrm{~K}$, the ice of which it's mostly made starts to sublime and forms a gaseous coma. How far is the cometary nucleus from the Sun when the coma starts to form (in AU$)$ ?

Transcribed Image Text:4. A cometary nucleus rotates rapidly and has an albedo A = 0.05. When its surface temper-
ature reaches T ~ 170 K, the ice of which it's mostly made starts to sublime and forms
a gaseous coma. How far is the cometary nucleus from the Sun when the coma starts to
form (in AU)?
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