The phrase typically refers to one of two distinct specialized contexts: a highly sought-after vintage timepiece or an astronomical phenomenon . Rolex Daytona Ref. 6240 Go to product viewer dialog for this item.
In astronomy, is a famous "deep sky" object. While not typically called "raro" in English-language scientific papers, it is frequently described as a rare and exceptional specimen.
In medical imaging, MK-6240 is a radioactive tracer used in PET scans to detect tau protein aggregates in the brain, often used for diagnosing Alzheimer's disease.
It is a prototypical "starburst" galaxy formed by the collision of two smaller galaxies.
Photo Album :: NGC 6240 :: 19 Nov 02 - Chandra X-ray Observatory