Venus and Jupiter Conjunction

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Discussion Overview

The discussion centers around the conjunction of Venus and Jupiter, including observations of their positions in the sky, the timing of visibility, and resources for tracking such astronomical events. Participants share personal experiences and information about the planets' movements.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant observed the conjunction of Venus and Jupiter, noting they appeared about half a degree apart, similar to the width of the full moon.
  • Another participant expressed regret for missing the event and inquired about resources for finding out about such occurrences.
  • Some participants discussed the visibility of Venus and Jupiter over the following weeks, indicating that Venus would move east of Jupiter.
  • A participant provided details on the rising times of Jupiter and Venus, explaining their relative positions and visibility during the early morning hours.
  • Participants mentioned using online resources like Sky and Telescope magazine to track planetary movements.

Areas of Agreement / Disagreement

Participants generally agree on the visibility of Venus and Jupiter and the usefulness of certain resources for tracking astronomical events. However, there is no consensus on the specific details of their movements or the best methods for observing them.

Contextual Notes

Some statements rely on approximations and assumptions regarding the distances and sizes of celestial bodies, which may not be universally accepted or verified.

Who May Find This Useful

Astronomy enthusiasts, casual stargazers, and individuals interested in tracking planetary movements may find this discussion informative.

Charles Link
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Today at about 4:30 am I saw the conjunction of Venus and Jupiter, where they were about the width of the full moon, or one half degree apart. Did anyone else see it?

Edit: The moon is 2,200 miles in diameter and at a distance of 240,000 miles. Thereby it subtends an angle in radians of 2,200/240,000=.01 (approximately). With pi radians being 180 degrees, one radian is 57.3 degrees, so that .01 radians is about .50 degrees (angle subtended by the moon). (.57 to be more exact, but with the moon being slightly less than .01 radians).
 
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Charles Link said:
Today at about 4:30 am I saw the conjunction of Venus and Jupiter, where they were about the width of the full moon, or one half degree apart. Did anyone else see it?

Edit: The moon is 2,200 miles in diameter and at a distance of 240,000 miles. Thereby it subtends an angle in radians of 2,200/240,000=.01 (approximately). With pi radians being 180 degrees, one radian is 57.3 degrees, so that .01 radians is about .50 degrees (angle subtended by the moon). (.57 to be more exact, but with the moon being slightly less than .01 radians).
Awh I missed it :(
Where do you find out that things like this are going to happen?
 
TensorCalculus said:
Awh I missed it :(
Where do you find out that things like this are going to happen?
I saw the two "stars" out my window in the morning about two weeks ago when they were somewhat further apart. I guessed it might be Venus and Jupiter, but googled it to verify.

They will still be fairly close together and visible in the early morning in the east before sunrise for the next couple of weeks. Venus will be moving east of Jupiter.

You can google "the planets for this month" and you would get links to things like Sky and Telescope magazine or astronomy magazine.
 
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Charles Link said:
I saw the two "stars" out my window in the morning about two weeks ago when they were somewhat further apart. I guessed it might be Venus and Jupiter, but googled it to verify.

They will still be fairly close together and visible in the early morning in the east before sunrise for the next couple of weeks. Venus will be moving east of Jupiter.

You can google "the planets for this month" and you would get links to things like Sky and Telescope magazine or astronomy magazine.
Oh, thanks! That's really helpful!
 
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With Venus having a shorter period around the sun than Earth, with Earth having a much shorter period than Jupiter, Venus has now moved eastward and Jupiter westward, so that Jupiter now rises much earlier and Venus much later, with Jupiter now rising about two hours before Venus. This morning was very good viewing with the crescent moon between Jupiter and Venus to make it even more interesting. The moon will again be between Jupiter and Venus this coming morning (4-5 am or thereabouts). Jupiter rises in the east somewhere around 2-2:30 am.
 
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