Observability of ACOs
Heliocentric distance vs. time (starting from 1/1/2015) for all the ACOs. The objects' identification are located at the minima of the line which correspond to the perihelion passage.
Each line can have 4 line-styles:
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dashed-line while the object has elongation <60°
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blue full-line for elongations >60° and declinations δ>+20°
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black full-line for elongations >60° and declinations -20°≤δ≤20°
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red full-line for elongations >60° and declinations δ<-20°
The blue line corresponds to the period when the object can be observed by a mid-northern observer, the red line by a mid-southern observer, and the black full line by both.
