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The term minimum mass refers to the detected objects with a lower-bound calculated mass
Mass

In physical science, mass refers to the degree of acceleration a body acquires when subject to a force: bodies with greater mass are accelerated less by the same force....
. The example of minimum mass is for extrasolar planet
Extrasolar planet

An extrasolar planet, or exoplanet, is a planet beyond the Solar System, orbiting a star other than the Sun. As of February 2009, 342 exoplanets are listed in the Extrasolar Planets Encyclopaedia....
s, because most extrasolar planets were detected by the radial velocity method, which detects planets by detecting changes in toward or away movement of stars in the line-of-sight
Line-of-sight

Line-of-sight may refer to:* Line-of-sight propagation, electro-magnetic waves travelling in a straight line* Line of sight * Line-of-sight ...
, in which real inclination
Inclination

Inclination in general is the angle between a reference plane and another plane or Axis_of_rotation of direction. The axial tilt is expressed as the angle made by the planet's axis and a line drawn through the planet's center perpendicular to the orbital plane....
s were not calculated. If inclination becomes known, the true mass
True mass

The term true mass is synonymous with the term mass, but is used in astronomy to differentiate the measured mass of a planet from the lower limit of mass usually obtained from radial velocity techniques....
 will be calculated using the following formula:








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The term minimum mass refers to the detected objects with a lower-bound calculated mass
Mass

In physical science, mass refers to the degree of acceleration a body acquires when subject to a force: bodies with greater mass are accelerated less by the same force....
. The example of minimum mass is for extrasolar planet
Extrasolar planet

An extrasolar planet, or exoplanet, is a planet beyond the Solar System, orbiting a star other than the Sun. As of February 2009, 342 exoplanets are listed in the Extrasolar Planets Encyclopaedia....
s, because most extrasolar planets were detected by the radial velocity method, which detects planets by detecting changes in toward or away movement of stars in the line-of-sight
Line-of-sight

Line-of-sight may refer to:* Line-of-sight propagation, electro-magnetic waves travelling in a straight line* Line of sight * Line-of-sight ...
, in which real inclination
Inclination

Inclination in general is the angle between a reference plane and another plane or Axis_of_rotation of direction. The axial tilt is expressed as the angle made by the planet's axis and a line drawn through the planet's center perpendicular to the orbital plane....
s were not calculated. If inclination becomes known, the true mass
True mass

The term true mass is synonymous with the term mass, but is used in astronomy to differentiate the measured mass of a planet from the lower limit of mass usually obtained from radial velocity techniques....
 will be calculated using the following formula:

The other examples of minimum mass usage are black hole
Black hole

In general relativity, a black hole is a region of space in which the gravitational field is so powerful that nothing, including electromagnetic radiation , can escape its pull after having fallen past its event horizon....
s, binary system
Binary system

Binary system may refer to:*binary numeral system*Binary opposition, a dichotomy*binary system , a system of two celestial bodies on a mutual orbit...
s, and nebula
Nebula

A nebula is an interstellar cloud of cosmic dust, hydrogen gas and Plasma . Originally nebula was a general name for any extended astronomy astronomical object, including galaxy beyond the Milky Way ....
e.