but mass HAS gravity ,small masses have very tiny gravity and larger masses get a bit more gravity, and very large objects get more gravity,(see newtons 'law' of gravity) from what I remember reading the moon is supposed to have about 1/6 'G' toward the centre of the moon, just as 'earth' has 1'G' toward the centre of the 'earth'.
BUT the way you are describing suggests you are "LOST IN SPACE", perhaps you could turn on your radio direction finding equipment to locate a planet that is emitting radio waves then travel to it so that you are NOT "LOST IN SPACE"
harpo, the GHost NON-subscriber