On the other hand, the component D has been very diffused, about to disappearing. Not observable around the perihelion passage at all. When it appears at dawn in 2000 June, it will be already fainter than 15 mag. It will be 11 mag in January. Only southern people can observe it.
Northern people can never see it again.
Fading our very slowly after the approach to the earth. Dec. 5 Only southern people can observe it. It will appear again in 2000 August as 13 mag. Only southern people can observe it. Northern people can never see it again.