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gonegahgah
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Can somebody please help me with this question?
Obviously when we observe an event it has not occurred at the time that we observed it occurring as light travel time must be taken into account.
However within our frame is the observed duration of an event (ie a star exploding) considered to be the actual amount of time the event took to occur; even when it event is moving away or towards us?
Question in short: observed time <> actual time; observed duration = actual duration?
Obviously when we observe an event it has not occurred at the time that we observed it occurring as light travel time must be taken into account.
However within our frame is the observed duration of an event (ie a star exploding) considered to be the actual amount of time the event took to occur; even when it event is moving away or towards us?
Question in short: observed time <> actual time; observed duration = actual duration?