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KOI 5
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Star KOI 5

Triple star system KOI 5 is located 1870 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
1870 light years
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KOI 5 A

Yellow star
Spectral class: G2V C

Location +

Ascension iconRight ascension: 19h 18m 57.540s
Declination iconDeclination: 44° 38' 50.619'' (northern hemisphere)
Parallax iconParallax: 1.744
Distance iconSun distance: 1,870.482 ly | 573.5 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: 113 % M Sun
| 1184 M Jupiter
+
Star mass
Mass of the star KOI 5 A is 1.13 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: 184 % R Sun
| 18.3 R Jupiter
+
Star size
Radius of the star KOI 5 A is 1.84 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: 5753 K | 1 T Sun
+
Star temperature
Surface temperature of KOI 5 A is 5753 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
luminosity icon
Luminosity: 3.86 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): 11.7
Magnitude iconAbsolute magnitude (V): 2.9
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

KOI 5 B

Yellow star

Basic characteristic

icon weight
Mass: 109 % M Sun
| 1142 M Jupiter
+
Star mass
Mass of the star KOI 5 B is 1.13 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: 120 % R Sun
| 11.8 R Jupiter
(estimate)
+
Star size
Radius of the star KOI 5 B is not known. Its estimated value based on other similar stars is about 120 % 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: 5700 K
 (estimate)
+
Star temperature
Surface temperature of KOI 5 B is estimated to be 5651 K, which is 99 % 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

Magnitude iconAbsolute magnitude (V): -8.8
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

KOI 5 C

Red dwarf

Basic characteristic

temperature iconTemperature: 5700 K
 (estimate)
+
Star temperature
Surface temperature of KOI 5 C is estimated to be 5651 K, which is 99 % 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

Magnitude iconAbsolute magnitude (V): -8.8
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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KOI 5 system structure

 KOI 5 A
KOI 5 A b 0.06 AU 56.9 M⊕ 7.1 R⊕ 5 days
KOI 5 B
KOI 5 C

More about KOI 5

       KOI 5 can be found in northern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope.
Other designations of this star
2MASS J19185753+4438507, KIC 8554498, SPOCS 3054, TIC 159107668, Gaia DR3 2126945668448657664, TOI 1241
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Frequently Asked Questions

How far is the KOI 5 system from the Sun?

The KOI 5 system is 1870 light years or 573.5 parsecs from the Sun.

What galaxy is the KOI 5 star in?

The KOI 5 is in the Milky Way galaxy just like the Sun.

How many stars are in the KOI 5 system?

The KOI 5 system contains 3 stars.

What type of star is the KOI 5?

The primary in the KOI 5 system is a Yellow star star.

What temperature is star KOI 5?

The primary in the KOI 5 system has a temperature of 5753 K. Find out more about the temperature of stars in Stellar guide
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