RCW 88 of a larger halo of fainter nebulosity extending perhaps out to 10 arcmin. The RCW catalogue states the Hα image size is 3'×2. RCW 88 is located about 3300 parsecs (10,000 light years) from us, though other estimates place this at a closer 1800±300 pc. or 1800±200 pc. Assuming the former distance and the diameter as 5'-6' across, finds by simple trigonometry the true size subtends a minimum of 5±1 parsecs (16±3 light-years.) This small emission nebula shows a mean radial velocity of −18 km.s, and is also a faint radio source that was identified by Lloyd Higgs in 1971.
Two miles Kenyan Daniel Komen in Hechtel, Belgium on 19 July 1997. The women's record is 8:58.58, set by Ethiopian Meseret Defar in Brussels, Belgium on 14 September 2007. Note: this list only covers boys because the history of 2 mile running largely occurred before Title IX, before high school girls were allowed to compete, which occurred about the same time as conversion to metric distances. Two miles The 2 mile (10,560 feet or exactly 3,218.688 metres) is a historic running distance. Like the mile run, it is still contested at some invitational meets, perhaps because it provides an easier record to