On Wednesday, October 9, 2019 at 6:49:46 AM UTC-7, a425couple wrote:
On 10/8/2019 4:42 PM, Double-A wrote:
On Monday, October 7, 2019 at 6:39:12 PM UTC-7, Herbert Glazier wrote:
Its size and distance.bert
"An international team of astronomers have found the fastest spinning star ever discovered. The star, called VFTS 102, rotates at a dizzying 1 million miles per hour, or 100 times faster than our sun. It lies in a neighboring dwarf galaxy, about 160,000 light-years from Earth." - Google.
Double-A
Huh?
"rotates at a dizzying 1 million miles per hour"
from
https://en.wikipedia.org/wiki/VFTS_102
"The peculiarity of this star is its projected equatorial velocity of
~600 km/s (about 2.000.000 km/h), making it the fastest rotating massive
star known.[4] The resulting centrifugal force tends to flatten the
star; material can be lost in the loosely bound equatorial regions,
allowing for the formation of a disk."
"Astrometry Radial velocity (Rv) 228[3] km/s"
Note that is article says "the fastest rotating massive star known."
If we include stars that are not considered to be massive it is a whole new ball game...
https://en.wikipedia.org/wiki/Millis...ed %20pulsars.
"The first millisecond pulsar, PSR B1937+21, was discovered in 1982 by Backer et al.[8] Spinning roughly 641 times a second, it remains the second fastest-spinning millisecond pulsar of the approximately 200 that have been discovered.[9] Pulsar PSR J1748-2446ad, discovered in 2005, is, as of 2012, the fastest-spinning pulsar currently known, spinning 716 times a second.[10][11]"