Finding the position of an object 1800 years ago?

  • Context: Undergrad 
  • Thread starter Thread starter solarblast
  • Start date Start date
  • Tags Tags
    Position Years
Click For Summary
SUMMARY

The discussion centers on the planetarium software The Sky, which allows users to visualize the night sky from 4700 years ago to 10,000 years into the future. The methodology employed by The Sky involves calculating the proper motions of stars, enabling accurate positioning over extensive timeframes. Users can explore the changes in star positions, such as those of the Big Dipper, over a span of 10,000 years. This functionality highlights the importance of proper motion in astronomical simulations.

PREREQUISITES
  • Understanding of proper motion in astronomy
  • Familiarity with planetarium software, specifically The Sky
  • Basic knowledge of celestial navigation
  • Awareness of astronomical time scales
NEXT STEPS
  • Research the principles of proper motion in stellar astronomy
  • Explore advanced features of The Sky software
  • Investigate historical star positions and their changes over millennia
  • Learn about celestial mechanics and their applications in planetarium programs
USEFUL FOR

Astronomers, educators, and enthusiasts interested in celestial navigation and the historical positions of stars will benefit from this discussion.

solarblast
Messages
146
Reaction score
2
I use the planetarium program The Sky quite a bit. It's capable of showing the sky from -4700 years ago to 10000 years into the future. What's the methodology behind this? One giant leap, or small leaps of say 100 years to get there, with some last jump to the final date?
 
Astronomy news on Phys.org
I believe the answer is that proper motions are used for each star seen in the virtual sky.

Google proper motion big dipper. One of the first hits shows what happens to the big dipper over something like 10K years.
 

Similar threads

Undergrad Nature paper on Moon's initial evolution - Tidally driven remelting
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Mysterious Agent Blows Up Moon: Can Earth Survive?
  • · Replies 9 ·
Replies
9
Views
4K
Programs Take a 5th year to do more research?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad A busy and interesting night sky in Mackinaw City
  • · Replies 1 ·
Replies
1
Views
2K
Should I Pursue a PhD in Physics or Engineering?
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Late Photons from the Early Universe?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Anomalous Quasar Observations 200k Light Year Jet? And So On.
  • · Replies 11 ·
Replies
11
Views
4K
Admissions Climbing my way to a Physics PhD 10 years after a Philosophy BA
  • · Replies 21 ·
Replies
21
Views
5K
Engineering Questions about applying for positions while I'm still an Undergraduate
  • · Replies 4 ·
Replies
4
Views
2K
Admissions Opening the door to an Astrophysics PhD after a 5 year gap
  • · Replies 11 ·
Replies
11
Views
3K