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16 Cygni
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Star 16 Cygni

Triple star system 16 Cygni is located 69 light years away from the Sun. It is a system with 3 stars. There is at least one exoplanet in this system.
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Sun distance
69 light years
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16 Cygni A

Yellow star
Spectral class: G1.5Vb

Location +

Ascension iconRight ascension: 19h 41m 48.713s
Declination iconDeclination: 50° 31' 27.675'' (northern hemisphere)
Parallax iconParallax: 47.324
Distance iconSun distance: 68.920 ly | 21.1 pc
Star position
The position of a star tells us where it appears in the sky, similar to how we use coordinates like latitude and longitude on Earth. In astronomy, the three main coordinates are right ascension, declination and distance. .. icon More about Star position in StellarGuide

Basic characteristic

icon weight
Mass: 108 % M Sun
| 1131 M Jupiter
+
Star mass
Mass of the star 16 Cygni A is 1.08 solar masses.

The mass of a star is the total amount of matter it contains. It is one of the most important properties of a star, as it determines almost everything about how the star lives, changes, and dies. In astronomy, star mass is usually measured in solar masses (M☉) — where 1 solar mass is equal to the mass of our Sun... icon More about Star mass in StellarGuide
radius icon
Size: 123 % R Sun
| 12.2 R Jupiter
+
Star size
Radius of the star 16 Cygni A is 1.229 solar radii.

The size of a star refers to its radius — the distance from its center to its surface. Star size is usually measured in solar radii (R☉), where 1 solar radius equals approximately 696,000 kilometers. Depending on their type and life stage, stars can be much smaller or larger than the Sun... icon More about Star size in StellarGuide
temperature icon
Temperature: 5830 K | 1.01 T Sun
+
Star temperature
Surface temperature of 16 Cygni A is 5830 K, which is 101 % of the temperature on the surface of the Sun.

The temperature of a star refers to the temperature at its surface, also called the photosphere. It is measured in kelvins (K), the standard unit for temperature in astronomy. A star’s temperature tells us a lot about its physical properties and where it stands in its evolutionary stage... icon More about Star temperature in StellarGuide
time icon
Age: 7.07 billions years | 1.54 Sun
+
Star age
Star 16 Cygni A is 7.07 billion years old, which is about 1.54 of the Sun's age.

The age of a star tells us how long it has been shining since it formed. Knowing a star’s age helps astronomers understand its life stage, how it has changed over time, and what will happen to it in the future... icon More about Star age in StellarGuide
luminosity icon
Luminosity: 1.55 L Sun
+
Star luminosity
Luminosity is the total amount of energy a star gives off every second. Think of it as the star’s true brightness — not just how bright it looks from Earth. This is important because some stars may appear dim simply because they are far away, not because they’re actually faint... icon More about Star luminosity in StellarGuide

Photometry

Magnitude iconApparent magnitude (V): 6
Magnitude iconAbsolute magnitude (V): 4.3
Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).
5
10
15
20
25
30
35
K
2.1
H
1.6
J
1.2
Grp
0.8
I
0.8
G
0.6
V
0.5
Gbp
0.5
B
0.4
U
0.3

16 Cygni B

Yellow star, High proper motion star
Spectral class: G2.5Vb

Basic characteristic

icon weight
Mass: 104 % M Sun
| 1089 M Jupiter
+
Star mass
Mass of the star 16 Cygni B is 1.08 solar masses.

The mass of a star is the total amount of matter it contains. It is one of the most important properties of a star, as it determines almost everything about how the star lives, changes, and dies. In astronomy, star mass is usually measured in solar masses (M☉) — where 1 solar mass is equal to the mass of our Sun... icon More about Star mass in StellarGuide
radius icon
Size: 112 % R Sun
| 11.1 R Jupiter
+
Star size
Radius of the star 16 Cygni B is 1.116 solar radii.

The size of a star refers to its radius — the distance from its center to its surface. Star size is usually measured in solar radii (R☉), where 1 solar radius equals approximately 696,000 kilometers. Depending on their type and life stage, stars can be much smaller or larger than the Sun... icon More about Star size in StellarGuide
temperature icon
Temperature: 5751 K | 1 T Sun
+
Star temperature
Surface temperature of 16 Cygni B is 5751 K, which is 100 % of the temperature on the surface of the Sun.

The temperature of a star refers to the temperature at its surface, also called the photosphere. It is measured in kelvins (K), the standard unit for temperature in astronomy. A star’s temperature tells us a lot about its physical properties and where it stands in its evolutionary stage... icon More about Star temperature in StellarGuide
time icon
Age: 6.74 billions years | 1.47 Sun
+
Star age
Star 16 Cygni B is 6.74 billion years old, which is about 1.47 of the Sun's age.

The age of a star tells us how long it has been shining since it formed. Knowing a star’s age helps astronomers understand its life stage, how it has changed over time, and what will happen to it in the future... icon More about Star age in StellarGuide
luminosity icon
Luminosity: 1.25 L Sun
+
Star luminosity
Luminosity is the total amount of energy a star gives off every second. Think of it as the star’s true brightness — not just how bright it looks from Earth. This is important because some stars may appear dim simply because they are far away, not because they’re actually faint... icon More about Star luminosity in StellarGuide

Photometry

Magnitude iconApparent magnitude (V): 6.2
Magnitude iconAbsolute magnitude (V): 4.6
Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).
5
10
15
20
25
30
35
K
2.1
H
1.6
J
1.2
Grp
0.8
I
0.8
G
0.6
V
0.5
Gbp
0.5
B
0.4
U
0.3

16 Cygni C

Red dwarf, , High proper motion star
Spectral class: MV

Basic characteristic

icon weight
Mass: 10 % M Sun
| 104.8 M Jupiter
 (estimate)
+
Star mass
The mass of the star 16 Cygni C is unknown. Based on its other characteristics, it is estimated to be about 10 % of the Sun's mass.

The mass of a star is the total amount of matter it contains. It is one of the most important properties of a star, as it determines almost everything about how the star lives, changes, and dies. In astronomy, star mass is usually measured in solar masses (M☉) — where 1 solar mass is equal to the mass of our Sun... icon More about Star mass in StellarGuide
radius icon
Size: 20 % R Sun
| 1.5 R Jupiter
(estimate)
+
Star size
Radius of the star 16 Cygni C is not known. Its estimated value based on other similar stars is about 20 % solar radii.

The size of a star refers to its radius — the distance from its center to its surface. Star size is usually measured in solar radii (R☉), where 1 solar radius equals approximately 696,000 kilometers. Depending on their type and life stage, stars can be much smaller or larger than the Sun... icon More about Star size in StellarGuide
temperature iconTemperature: 2900 K
 (estimate)
+
Star temperature
Surface temperature of 16 Cygni C is estimated to be 2917 K, which is 50 % of the temperature on the surface of the Sun.

The temperature of a star refers to the temperature at its surface, also called the photosphere. It is measured in kelvins (K), the standard unit for temperature in astronomy. A star’s temperature tells us a lot about its physical properties and where it stands in its evolutionary stage... icon More about Star temperature in StellarGuide

Photometry

Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).
5
10
15
20
25
30
35
K
2.1
H
1.6
J
1.2
Grp
0.8
I
0.8
G
0.6
V
0.5
Gbp
0.5
B
0.4
U
0.3
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16 Cygni system structure

 16 Cygni A
16 Cygni B
16 Cygni B b 1.69 AU 756.6 M⊕ 799.5 days
16 Cygni C

More about 16 Cygni

       16 Cygni can be found in northern celestial hemisphere, and it is possible to see it with naked eye. The star is easily observable from Northern America, Europe and Asia.
Other designations of this star
BD+50 2848, Gliese 765.1 B, GJ 765.1 B, HD 186427, HIC 96901, HIP 96901, HR 7504, LTT 15751, SAO 31899, Struve 4046B, KIC 12069449, BD+50 2847, GCTP 4634.00, Gliese 765.1 A, GJ 765.1 A, HD 186408, HIC 96895, HIP 96895, HR 7503, LTT 15750, SAO 31898, Struve 4046A, Gaia EDR3 2135550755683405952
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External sources
gaia icon
Gaia database (Gaia EDR3 2135550755684554112)
Archive from the Gaia mission

Frequently Asked Questions

How far is the 16 Cygni system from the Sun?

The 16 Cygni system is 69 light years or 21.1 parsecs from the Sun.

What galaxy is the 16 Cygni star in?

The 16 Cygni is in the Milky Way galaxy just like the Sun.

How many stars are in the 16 Cygni system?

The 16 Cygni system contains 3 stars.

What type of star is the 16 Cygni?

The primary in the 16 Cygni system is a Yellow star star.

What temperature is star 16 Cygni?

The primary in the 16 Cygni system has a temperature of 5830 K. Find out more about the temperature of stars in Stellar guide
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