**ImgPrep: 

Red divided by 3
green divided by 1.5
blue left as is

all flipped horizontal so N is up and E is left

all divided by 2

all 16384 counts added

**Notes: 

Pollux 
Epoch 2000  
ra 7 45 18.9  
dec +28 01 34
HD 62509
SAO79666
78 Beta Gem
1.15v? V
1.00 B-V
1.0 Mv
K0IIIvar Spec
d(oc) 11t
6335A 
HR2990


Castor A
66 alpha Gem
epoch 2000
ra 7 34 35.9
dec +31 53 18
1.94v  V
0.7 Mv
0.0 B-V
A1V Comp
ADS  6175A
 d(pc) 15t
d(ly) 48.9
HD 60179
Castor, sv
ADS 6175A

Castor B
66 alpha Gem
Flamsteed number and Bayer letter
ra 7 34 36.1 
dec +31 53 19  
2.92 	V  
0.0 B-V
Am  Spec
6175B  ADS
HR2890, sv
HD 60178

teach/learn: 
compare images of Pollux and Castor taken on February 22, 1999 with Yerkes 24 inch. 
Castor is a double star part of a three star system.  The third star is the dim star south of the pair. 
Arrange the image so that the brighter of the  double star is lower and to the right.  
The dimmest star should be toward the bottom of the window.  

GemAlpha.fts   Castor
GemBeta.fts      Pollux