Stellar Culmination: Determining Sidereal Time at the Moment of Arcturus' Peak

  • Thread starter Thread starter mystery_witch
  • Start date Start date
  • Tags Tags
    Star
AI Thread Summary
To determine the sidereal time when Arcturus culminates, one must understand that culmination refers to the star reaching its highest point in the sky. This event occurs when the star is at its meridian, which corresponds to its Right Ascension being equal to the local sidereal time. While the original term "culminate" is correctly translated, it may not be commonly used in astronomy discussions. Knowing the specific time of culmination can simplify solving the problem, but the focus should be on the relationship between Right Ascension and sidereal time rather than providing a numerical answer. Understanding these concepts is essential for accurately addressing the problem.
mystery_witch
Messages
4
Reaction score
0
In my problem, it says only this: "The star Arcturus culminates. What is the sidereal time at this moment?"

Do I need to know when the star culminates to solve the problem, and if I do where would I find this information?
 
Physics news on Phys.org
Culminates means reaches it's highest point (although I've never heard this term used in astronomy - was this a translation?).
I think it wants you describe the relation of Right Ascension to sidereal time rather than give a number
 
This was actually a translation, but it is translated correctly. Culminate is the word used in the original, although it doesn't really sound right in this context.

As for the problem, it does make it a lot easier if I don't have to give a number as the answer.

Thanks.
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Thread 'Variable mass system : water sprayed into a moving container'
Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
Back
Top