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.
Once you join Medicare, Social Security will send you a red, white and blue Medicare card in the mail. It will look like the card below. Some important things to look for are included. Your Medicare number is usually the same as or very similar to your Social Security number. Be sure to keep your card and number safe.