Venus and Jupiter Conjunction

  • Context: High School 
  • Thread starter Thread starter Charles Link
  • Start date Start date
Click For Summary
SUMMARY

The conjunction of Venus and Jupiter occurred today at approximately 4:30 am, with the two planets positioned about half a degree apart, equivalent to the width of the full moon. Observers noted that Venus is moving eastward while Jupiter is moving westward, resulting in Jupiter rising about two hours earlier than Venus. The crescent moon was also visible between the two planets, enhancing the viewing experience. This conjunction will remain observable in the early morning sky for the next couple of weeks.

PREREQUISITES
  • Basic understanding of celestial events and planetary movements
  • Familiarity with astronomical terms such as conjunction and subtended angle
  • Knowledge of how to use astronomy resources like Sky and Telescope magazine
  • Ability to interpret angular measurements in radians and degrees
NEXT STEPS
  • Research how to calculate angular distances between celestial bodies
  • Learn about the orbital periods of Venus, Earth, and Jupiter
  • Explore astronomy apps that provide real-time updates on celestial events
  • Investigate upcoming astronomical events and conjunctions for future viewing
USEFUL FOR

Astronomy enthusiasts, stargazers, and anyone interested in observing celestial events and understanding planetary movements.

Charles Link
Science Advisor
Homework Helper
Insights Author
Gold Member
2025 Award
Messages
5,978
Reaction score
3,122
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).
 
Last edited:
  • Like
  • Informative
Likes   Reactions: Andy Resnick, TensorCalculus and FactChecker
Astronomy news on Phys.org
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.
 
Last edited:
  • Like
  • Informative
Likes   Reactions: TensorCalculus and russ_watters
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!
 
  • Like
Likes   Reactions: Charles Link
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.
 
  • Informative
Likes   Reactions: TensorCalculus and Gavran

Similar threads

  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 40 ·
2
Replies
40
Views
7K
Replies
17
Views
4K
  • · Replies 21 ·
Replies
21
Views
5K
Replies
5
Views
7K
  • · Replies 1 ·
Replies
1
Views
6K
  • · Replies 34 ·
2
Replies
34
Views
14K
  • · Replies 7 ·
Replies
7
Views
4K
  • · Replies 1 ·
Replies
1
Views
4K
  • · Replies 44 ·
2
Replies
44
Views
15K