Using the distance to the comet in km and its calculated angular velocity, the c
ID: 291389 • Letter: U
Question
Using the distance to the comet in km and its calculated angular velocity, the calculated velocity of the comet is ___ km/h.
Instruction on facing page says this can be figured using the hourly angular velocity from 5b, the distance to the comet from step 6, and the small angle formula to calculate how far the comet moved in one hour.
Name hnystal Shannon Date Exercise 23. Determining the Velocity of a Comet DATA SHEET 1. The difference in declination of Omicron Draconis and SAOo 029766 is 3850 2. The linear distance between Omicron Draconis and SAO 029766, as measured from Figure 23-la, is 23.5 mm. 3. The plate scale of the photographs (linear distance/angular distance) is 4. The distance between the comet images on the two photographs is 5. Using the plate scale (Answer 3 above), and the distance between the two comet images lo333 "1mm. 4 above), the comet moved LAl.49 in two hours. Dividing this answer by two computes the comet's angular velocity as 245.73 h. 6. The distance to the comet is 0.609 A.U. This distance converted into kilometers is 7. Using the distance to the comet in kilometers and its calculated angular velocity, the cal- culated velocity of the comet is km/h. Dividing this answer by the number of seconds in an hour (3600) computes the comet's velocity as km/sec Use this space and the reverse side to show all calculations and to answer assigned discussion questions. Attach additional sheets if necessary. O.D 208860 24 5211,3 sec. of anc SAo -211,314 3850 sec of ar 5) 143.83 " 3.00 mm 491.49" 245.745 2.Explanation / Answer
speed= distancediv time
speed= 91105103div 245.75
= 370722.698 kmhour
= 370722.698div 1000
= 370.722698 kmsec
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