Complex sentence: The method has been applied to the HD 208487 system, resulting in an apparent detection of a second planet with a period of approximately 1000 days; however, this may be an artifact of stellar activity.
Split into simpler sentences: The method has been applied to the HD 208487 system, resulting in an apparent detection of a second planet with a period of approximately 1000 days. However, this may be an artifact of stellar activity.