Jalowiczor has also done research relating to comets.
The work confirmed the delta effect (the variation in the distance  between a comet and its observer affecting the perceived cometary coma magnitude).
The formula for this effect was known to be .
Most astronomers believed  but Ernst Öpik questioned this and claimed .
Jalowiczor's paper confirmed that , though it can vary.
His analysis used a photograph of Comet Halley taken by an Anglo-Australian 3.9 meter reflector.
Jalowiczor has also done research relating to comets. The work confirmed the delta effect (the variation in the distance  between a comet and its observer affecting the perceived cometary coma magnitude). The formula for this effect was known to be . Most astronomers believed  but Ernst Öpik questioned this and claimed . Jalowiczor's paper confirmed that , though it can vary. His analysis used a photograph of Comet Halley taken by an Anglo-Australian 3.9 meter reflector.
Peter Jalowiczor