No, a vessel anchored cannot be a "vessel not under command"..
International / Inland
Navigational Rules of the Road
General definitions
Rule-3
For the purpose of these rules, except where the context otherwise requires:
(f) The term "vessel not under command" means a vessel through some exceptional circumstance is unable to maneuver as required by these rules and is therefore unable to keep out of the way of another vessel.
This may apply to a vessel underway, NOT making way. Please refer to the link below.
To take early and substantial action to keep well clear of the stand on vessel.
To take early and substantial action to keep well clear of the stand on vessel.
To take early and substantial action to keep well clear of the stand on vessel.
To take early and substantial action to keep well clear of the stand on vessel.
Take early action to keep clear of the stand on vessel
This is too broad of a question. It needs to be specified why type of vessel you are anchoring and where. If you are in the US refer to Aids to Navigation "Rules of the Road."
take early action to keep clear of the stand on vessel
An anchor ball is a sphere attached to the vessel of an anchor buoy, used as a signal to state that the vessel is anchored.
When boating at night, a single white light on a vessel tells you that it is anchored.
What should you do to avoid capsizingA mooring buoy is a white boule with which color stripe
What should you do to avoid capsizingA mooring buoy is a white boule with which color stripe
A vessel at anchor or aground in restricted visibility