Double Star 61 Cygni A & B

1. Double Star 61 Cygni A & B The life cycle of a star By: Amber Newcomb

2. The twins • Double Star Cyngi has its name for a reason the A & B part is there because there are two stars (the twins) • They are located 31.3 inches apart when you look into the telescope

3. location • The two stars are located in the constellation called the swan or Cygnus • Is located 11.4 light years away from us • The 13th closest star to the sun

4. class • Is in the class K part of the spectral class • Is also known as the orange part of the spectral class as shown below • It also is part of the G or color yellow it is a mixture of the two

5. temperature and brightness • The part A is an amazing 4450 K degrees • Part B is a bit cooler at 4120 K degrees • Both stars produce 1/6 as much light than the sun

6. mass and orbital period • Both stars weigh about half of the sun • It takes the two stars about 700 years to make a full orbit

7. additional information about cygni b • Its nickname is George • It is a orange star in the spectral class • Was first settled in the year 2085 • Was first sighted in the year 2061 • Is located inside Cygnus with its twin

8. Main sequence stars • 61 cygni a and b are main sequence stars • Main sequence stars are stars lying on the diagonal band of the H-R diagram

9. Cygnus The swan • Is in the blue-white supergiant class • Is 110 light years away • Is a binary star which means two stars that revolve around one another • Has a magnitude of 6.5

10. Additional information • Is the fourth nearest star to the earth • They are both white dwarf stars • The constellation Cygnus that it is located in is called the flying star

11. Websites http://www.starobserver.eu/multiplestars/61cygni.html http://www.astro.wisc.edu/~dolan/gurps/systems/61cygnib.html