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[[preprinted]] 28 [[/preprinted]]

September 19, 1904

Hygeia continued
Plate A 4608

|   | x | y | x | y | Diff x | Diff y | X x 4.36
Hygeia | -2.65 | +0/75 | _2. [[strikethrough]] 70 [[/strikethrough]] 65 | +0.75 |   |   |   |
55 | -8.75 | -6.70 ^[[-6.68]] | -8.75 | -6.65 | -6.10 | -7.43 | -26.60
56 | -4.75 | +4.15 ^[[+4.18]] | -4.75 | +4.20 | -2.10 | +3.43 | -9. [[strikethrough]] 6 [[/strikethrough]] 16
58 | +3.10 | +3.60 | +3. [[strikethrough]] 2 [[/strikethrough]] 10 | + 3.60 | +5.75 | +2.85 | +25.07
Hygeia | -2.65 | +0.75
Mean Var. | -2.65 | +0.75
Length of trail 0.70

(a) C.P.D. -23 degrees 6655 17h 41m 12.6s -23 degrees 34.9'
(b) -23 degrees 6656 17h 41m 30.6s -23 degrees 24.2'
(c) -23 degrees 6658 17h 42m 36s -23 degrees 24.7'

sec delta = 1.090
4 sec delta = 4.360
(a) [[equation]]  (c) [[equation]]
(b) [[equation]]

Mean Position 17h 41m 39.2s -23 degrees 27.5' (1875)

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[[preprinted]] 29 [[/preprinted]]

[[underlined]] September 21, 1904 [[/underlined]]

Hygeia - Estimates of Direction of Trail
Plate A 4591
  No trail
Plate A4600
  Double image of asteroid. Line taken through centres
x +50.5cm  x -380cm  [[image]]
y -10.0cm  y +57

X is the distance (horizontal from asteroid to edge of plate. y is vertical dist. to intersection of line of direction with edge.
x/y = tan theta = 5.050  x/y = -6.667 theta = Position angle
theta = 281.2 degrees   theta = 278.5  x/y = tan theta
Mean theta = 279.8 degrees

As the asteroid is retrograding, the angle is in the 4th quadrant.

Plate A 4603
  No trail. Images slightly elongated but too poor for measuring direction.

Plate A 4608
x +84.5
y -17.0
x/y = tan theta = 4.971
theta = 281.4 degrees

Plate A 4610
  Images too poor to estimate direction.