Entering orbital elements of a comet
You can find orbital elements for comets and asteroids on this web site:
http://cfa-www.harvard.edu/iau/Ephemerides/index.html
For example, you can find the following data for comet C/2002 C1 (Ikeya-Zhang):
| C/2002 C1 (Ikeya-Zhang) Epoch 2002 Mar. 27.0 TT = JDT 2452360.5 |
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| T 2002 Mar. 18.9809 TT | MPCM | |||||
| q 0.507060 | (2000.0) | P | Q | |||
| z +0.019621 | Peri 34.6726 | -0.5491662 | -0.6906635 | |||
| +/-0.000009 | Node 93.3672 | +0.6195519 | -0.7143233 | |||
| e 0.990051 | Incl 28.1217 | +0.5608671 | +0.1128098 | |||
| From 541 observations 2002 Feb. 1-Mar. 24, mean residual 0".6. | ||||||
To enter this into Planetarium, select the menu item "Options / Comets and Asteroids" and select the "Personal" category at the upper right. Then tap on the "New" button and enter the values as shown in the picture below.