In extragalactic Astronomy people often use kpc (kilo parsecs, or 1000 parsecs) or Mpc (mega parsecs, or 1,000,000 parsecs). For example the Sun is about 8 kpc from the centre of the galaxy and Virgo (the nearest large cluster of galaxies to us) is about 15-20 Mpc away.
Quick Answer. You can become a SilverSneakers member by having an eligible health plan. Eligibility can be determined by contacting your health provider's customer service department. SilverSneakers is offered to many Medicare plans throughout the nation. Keep Learning.
SilverSneakers enrollees receive a basic fitness membership at any of the 11,000 participating locations. When arriving to workout, please wear comfortable clothes as well as shoes with rubber soles. SilverSneakers classes normally last from 45 to 60 minutes and are held at least twice a week.