Composite Dust Phase Function for Comets
by D. Schleicher (2010 May)

Tabulated Values

phase angle
(°)
phase function
0° normalize
phase function
90° normalize
0.0 1.0000 1.8604
1.0 0.9596 1.7853
2.0 0.9217 1.7146
3.0 0.8859 1.6481
4.0 0.8522 1.5855
5.0 0.8205 1.5264
6.0 0.7906 1.4708
7.0 0.7624 1.4184
8.0 0.7358 1.3689
9.0 0.7107 1.3222
10.0 0.6871 1.2782
11.0 0.6647 1.2367
12.0 0.6436 1.1974
13.0 0.6237 1.1604
14.0 0.6049 1.1254
15.0 0.5872 1.0924
16.0 0.5704 1.0612
17.0 0.5546 1.0317
18.0 0.5396 1.0039
19.0 0.5255 0.9776
20.0 0.5122 0.9528
21.0 0.4996 0.9294
22.0 0.4877 0.9073
23.0 0.4765 0.8864
24.0 0.4659 0.8667
25.0 0.4559 0.8482
26.0 0.4465 0.8307
27.0 0.4377 0.8142
28.0 0.4293 0.7988
29.0 0.4215 0.7842
30.0 0.4142 0.7706
31.0 0.4073 0.7578
32.0 0.4009 0.7458
33.0 0.3949 0.7346
34.0 0.3893 0.7242
35.0 0.3840 0.7145
36.0 0.3792 0.7055
37.0 0.3747 0.6972
38.0 0.3706 0.6895
39.0 0.3668 0.6825
40.0 0.3634 0.6761
41.0 0.3603 0.6703
42.0 0.3575 0.6651
43.0 0.3540 0.6586
44.0 0.3509 0.6528
45.0 0.3482 0.6477
46.0 0.3458 0.6433
47.0 0.3438 0.6395
48.0 0.3421 0.6364
49.0 0.3407 0.6339
50.0 0.3397 0.6319
51.0 0.3389 0.6305
52.0 0.3385 0.6297
53.0 0.3383 0.6295
54.0 0.3385 0.6297
55.0 0.3389 0.6305
56.0 0.3396 0.6318
57.0 0.3405 0.6335
58.0 0.3418 0.6358
59.0 0.3432 0.6386
60.0 0.3450 0.6418
61.0 0.3470 0.6455
62.0 0.3493 0.6498
63.0 0.3518 0.6545
64.0 0.3546 0.6596
65.0 0.3576 0.6653
66.0 0.3609 0.6714
67.0 0.3645 0.6781
68.0 0.3683 0.6852
69.0 0.3724 0.6929
70.0 0.3768 0.7010
71.0 0.3815 0.7097
72.0 0.3865 0.7190
73.0 0.3917 0.7288
74.0 0.3973 0.7391
75.0 0.4032 0.7500
76.0 0.4094 0.7616
77.0 0.4159 0.7737
78.0 0.4228 0.7865
79.0 0.4300 0.8000
80.0 0.4376 0.8141
81.0 0.4456 0.8290
82.0 0.4540 0.8445
83.0 0.4627 0.8609
84.0 0.4720 0.8781
85.0 0.4816 0.8961
86.0 0.4918 0.9149
87.0 0.5024 0.9347
88.0 0.5136 0.9555
89.0 0.5253 0.9772
90.0 0.5375 1.0000
91.0 0.5504 1.0239
92.0 0.5638 1.0490
93.0 0.5780 1.0753
94.0 0.5928 1.1029
95.0 0.6084 1.1318
96.0 0.6247 1.1622
97.0 0.6419 1.1941
98.0 0.6599 1.2276
99.0 0.6788 1.2628
100.0 0.6987 1.2998
101.0 0.7196 1.3388
102.0 0.7416 1.3797
103.0 0.7648 1.4228
104.0 0.7892 1.4682
105.0 0.8149 1.5161
106.0 0.8420 1.5665
107.0 0.8706 1.6197
108.0 0.9008 1.6759
109.0 0.9327 1.7353
110.0 0.9664 1.7980
111.0 1.0021 1.8643
112.0 1.0399 1.9346
113.0 1.0799 2.0090
114.0 1.1223 2.0879
115.0 1.1673 2.1717
116.0 1.2151 2.2606
117.0 1.2659 2.3551
118.0 1.3200 2.4557
119.0 1.3776 2.5628
120.0 1.4389 2.6770
121.0 1.5045 2.7989
122.0 1.5744 2.9291
123.0 1.6493 3.0683
124.0 1.7294 3.2174
125.0 1.8153 3.3772
126.0 1.9075 3.5488
127.0 2.0066 3.7331
128.0 2.1132 3.9315
129.0 2.2281 4.1452
130.0 2.3521 4.3759
131.0 2.4861 4.6252
132.0 2.6312 4.8951
133.0 2.7884 5.1876
134.0 2.9592 5.5053
135.0 3.1450 5.8509
136.0 3.3474 6.2276
137.0 3.5685 6.6389
138.0 3.8104 7.0888
139.0 4.0755 7.5821
140.0 4.3669 8.1241
141.0 4.6877 8.7209
142.0 5.0418 9.3797
143.0 5.4336 10.1086
144.0 5.8682 10.9172
145.0 6.3518 11.8168
146.0 6.8912 12.8204
147.0 7.4948 13.9433
148.0 8.1724 15.2039
149.0 8.9355 16.6237
150.0 9.7981 18.2284
151.0 10.7767 20.0490
152.0 11.8914 22.1227
153.0 13.1662 24.4945
154.0 14.6309 27.2193
155.0 16.3215 30.3644
156.0 18.2826 34.0130
157.0 20.5698 38.2681
158.0 23.2524 43.2588
159.0 26.4178 49.1477
160.0 30.1769 56.1411
161.0 34.6719 64.5036
162.0 40.0862 74.5764
163.0 46.6588 86.8040
164.0 54.7036 101.7706
165.0 64.6368 120.2504
166.0 77.0148 143.2783
167.0 92.5871 172.2490
168.0 112.3702 209.0535
169.0 137.7479 256.2662
170.0 170.6031 317.3900
171.0 213.4773 397.1532
172.0 269.7281 501.8021
173.0 343.5886 639.2122
174.0 439.8869 818.3657
175.0 562.9161 1047.2490
176.0 713.6276 1327.6328
177.0 884.4779 1645.4827
178.0 1053.2719 1959.5071
179.0 1182.2266 2199.4144
180.0 1231.1735 2290.4753

© 2010 Lowell Observatory
Page Curator: David Schleischer
Last modified 2010 December 10