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Star Associations Group


Modern investigations have taught us a lot about stars. Although, some stars are loners, stars are like people, they love to associate. Some find life-long companions, like a happy couple tend to stay off on their own. Others remain in their family groups, and are multiple star systems with many members. Still others are more popular and love to hang out in larger, looser associations, called open or galactic clusters.. Galactic clusters of stars often contain a dozen to a hundred members. Often gravitation attractions between the stars in groups like this will keep them hanging together, forming the spiral arms of galaxies. Still other stars gather in bunches of thousands, orbit at a distance, but still hang on to the center of galaxies. Tightly packed bunches of stars, these are generally distant, spherical and glow with a yellow hue. These are called, globular clusters. A larger association of stars in a spherical pattern is called an elliptical galaxy. Indeed it is stars that make up the very galaxy that we live in.

The star associations group must be observed with an instrument. Standard abbreviations for constellations and objects are used ( i.e., OC = Open Cluster.) Coordinates for these objects will be published at a later date. If anything really confuses you, use Astra'a contact page to ask me directly.

Astra has chosen a sampling of some of the star associations observations you can make. Below the list is an observing form that you can use to track your own observations. In the future, a pdf form will also be available at this site.

Astra's Celestial Challenge - Links to the pages for all the groups
Binocular Group
Naked Eye Group
Sagittarius Group
Solar System Group
Star Associations Group

STAR ASSOCIATIONS OBJECTS
GLOBULAR CLUSTERS PLANETARY NEBULA
M 10 - OPH M-27 - VUL - The Dumbbell
M 12 - OPH M- 57 - LYR - The Ring
M 13 - HER
 
M 53 - COM DOUBLE STARS
NGC 6449 - SGR Gamma Arietis

Alpha Libra
OPEN CLUSTERS Epsilon Lyrae
M 11 - SCT  
M 35 - GEM  
M 38 - AUR EXTRA CREDIT
.M 103 - CAS M 97 - PN - The Owl
NGC 1980 - ORI  

This Report Form May Be Used As Is or Additional Objects Can be Added.


ASTRA'S STARGATE
STAR ASSOCIATIONS GROUP

Observation Report Form
NAME________________________    
Instrument______________________    
     
OBJECT DATE NOTES
     
M 10 - GC - OPH _______ _______________________________________________
M 12 - GC - OPH _______ _______________________________________________
M 13 - GC - HER _______ _______________________________________________
M 53 - GC - COM _______ _______________________________________________
NGC 6449- GC - SGR _______ _______________________________________________
  _______ _______________________________________________

M 11 - OC - SCT

_______ _______________________________________________
M 35 - OC - GEM _______ _______________________________________________
M 38 - OC - AUR    
M 103 - OC - CAS
_______ ______________________________________________
NGC 1980 - OC - ORI _______ ______________________________________________
  _______ ______________________________________________
M 27 - PN - VUL _______ ______________________________________________
M 57 - PN - LYR _______ ______________________________________________
     
Gamma Arietis DS _______ ______________________________________________
Alpha Libra DS    
Epsilon Lyra DS _______ ______________________________________________
     
EXTRA CREDIT _______ ______________________________________________
M 97 - PN - The Owl _______ ______________________________________________

 


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Last Modified 08/13/2006

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