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in our e-book     Cherubwheels            by H. Peter Aleff

  The northern night sky on an ivory cherub

and the spirit in its wheels   

Cherub Table 1 - 1:  Sizes and coordinates of the circles from which the design of the Cherub carving is composed, and the northern stars in the matching positions:

The measurements below were made on a photograph where the height of the Cherub, without the frame, was  8.892 inch as shown on Figure 1 - 1.  This height is taken from a baseline that goes through the edge of the platform below the left fore foot and through the sole of the left hind foot, to the top of the knob above the crown. 

This baseline is also the x-axis for the coordinates of the circle centers below, whereas the y-axis touches the front of the right fore paw. 

The dimensions given below for each circle are first the Y-height of its center, listed from highest to lowest, then the X-distance of that center from the y-axis, and last the diameter.  All are averages of several separate measurements made in inches with engineering calipers and magnifiers on the 1/10" grid overlaid over that photograph.  The star names listed below each center are those shown in  Figure 1 - 6.
 

# 1: Curvature of crown front
7.9740      .7621      .7499
Vega, magnitude 0.04

# 2: Top center flower (dia.est.)
7.220      2.9940      2.0501
Eltanin, magnitude 2.22

# 3: Top curve of outer wing
7.1574      4.9968      3.1440 ID
                                    3.3910 OD
Zeta Draconis, magnitude 3.17

# 4: Curvature of crown top
6.8510      1.4460      3.4025
Pi Herculis, magnitude 3.13

# 5: Top curve of middle wing
6.5520      4.0749      1.8680 ID
                                     2.0360 OD
Eta Draconis, magnitude 2.74

# 6: Nose and top of face
6.4910      [-- .7691 ]      2.2340
Kornephoros, magnitude 2.27

# 7: Head
6.0850      1.2181      2.4234
Zeta Herculis, magnitude 2.81

# 8: Front fall of head dress OD
5.6120      [-- .4490 ]      3.7040
Alphecca, magnitude 2.23

# 9: Front fall of head dress ID
5.5220      .0118      2.6330
Nukasan, magnitude 3.66

# 10: Torus above rear OD
5.3760      6.2110      1.1500
Kochab, magnitude 2.06

# 11: Torus above rear ID
5.3430      6.1830      .4960
Pherkad, magnitude 3.08

# 12: Top curve of wing stub OD
5.3270      2.4490      1.7955
Eta Herculis, magnitude 3.46

# 13: Top curve of wing stub ID
5.2690      2.7181      1.1727
Sigma Herculis, magnitude 4.20

# 14: Bottom of belly
5.0290      3.7869      3.5940
Edasich, magnitude 3.30

# 15: Tail stump to rump -- smallest circle
4.5280      6.7820      .3579
Celestial north pole around 848 BCE

# 16: Chest outside shoulder rim
4.3175      2.3139      2.5687
Theta Boeotis, magnitude 4.05

# 17: Shoulder rim
4.2760      2.1000      1.8420  ID
                                   2.0407 OD
Kappa Boeotis, magnitude 4.54

# 18: Rear of shoulder blade
4.0760      3.2840      2.0460
Thuban, magnitude 3.64

# 19: Front flower (dia est.)
4.0000      .5100      1.2973
Delta Boeotis, magnitude 3.47

# 20: Back of left front leg, top
3.8600      8.0200      10.7900
Giausar, magnitude 3.84

# 21: Front of left hind thigh
3.2850      8.1719      4.5770
Dubhe, magnitude 1.81

# 22: Top of rear
3.1590      5.4216      3.5301
Alcor, magnitude 4.02

# 23: Groin
3.1460      5.3295      .9910
Mizar, magnitude 2.40

# 24: Stalk of front flower -- OD
3.0000      3.4910      6.1800
Alkaid, magnitude 1.87

# 25: Stalk of front flower -- ID
2.9330      3.0350      4.8680
Lambda Boeotis, magnitude 4.18

# 26: Front of right hind thigh
2.6979      5.5695      2.0100
Ux Ursae, now invisible, possible former nova ?

# 27: Tree trunk bottom OD
2.6170      8.5340      11.1500
Merak, magnitude 2.37

# 28: Lower curve of outer wing
2.5750      6.1345      5.4903 ID
                                     5.6460 OD
Alioth, magnitude 1.77

# 29: Left front leg to chest
2.4070      1.1629      1.8661
Nekkar, magnitude 3.48

# 30: Lower curve of wing stub
2.3750      7.1625      9.3310 ID
                                     9.4330 OD
Megrez, magnitude 3.30

# 31: Lower curve, middle wing
2.0900      7.6590      9.4200 ID
                                     9.5860 OD
Phecda, magnitude 2.44

# 32: Bud before right front leg
1.6890      .5531      1.0440
Seginus, magnitude 3.05

# 33: Flower under groin (dia est.)
1.3250      5.6190      1.2100
Cor Caroli, magnitude 2.89

# 34: Lower curve, left front leg
.2099      [-- 3.0030 ]      11.2856
Arcturus, magnitude -- 0.06
 

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