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CTI 170958.5+275905
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Star CTI 170958.5+275905

Red dwarf CTI 170958.5+275905 is located 76 light years away from the Sun. It is a single star of spectral class M5.5V, that has typically about 25 % of solar mass. For now, there are no known exoplanets in this star system.
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Sun distance
76 light years
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CTI 170958.5+275905

Red dwarf, High proper motion star
Spectral class: M5.5V

Location +

Ascension iconRight ascension: 17h 10m 28.320s
Declination iconDeclination: 27° 58' 8.448'' (northern hemisphere)
Parallax iconParallax: 42.769
Distance iconSun distance: 76.259 ly | 23.4 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: 10 % M Sun
| 146.7 M Jupiter
 (estimate)
+
Star mass
The mass of the star CTI 170958.5+275905 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
| 1.6 R Jupiter
(estimate)
+
Star size
Radius of the star CTI 170958.5+275905 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: 3000 K
 (estimate)
+
Star temperature
Surface temperature of CTI 170958.5+275905 is estimated to be 2960 K, which is 52 % 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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CTI 170958.5+275905 system structure

 CTI 170958.5+275905

More about CTI 170958.5+275905

Nearby star CTI 170958.5+275905 is a main sequence star that fuses hydrogen atoms into helium. 
       CTI 170958.5+275905 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
Gaia EDR3 4575010197472244352
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External sources
simbad icon
Simbad database (CTI 170958.5+275905)
Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)
gaia icon
Gaia database (Gaia EDR3 4575010197472244352)
Archive from the Gaia mission

Frequently Asked Questions

How far is the CTI 170958.5+275905 system from the Sun?

The CTI 170958.5+275905 system is 76 light years or 23.4 parsecs from the Sun.

What galaxy is the CTI 170958.5+275905 star in?

The CTI 170958.5+275905 is in the Milky Way galaxy just like the Sun.

How many stars are in the CTI 170958.5+275905 system?

The CTI 170958.5+275905 is a single star, there are no other known stars in the system.

What type of star is the CTI 170958.5+275905?

The star CTI 170958.5+275905 is a Red dwarf star.

What temperature is the CTI 170958.5+275905?

The primary in the CTI 170958.5+275905 system has an effective temperature of K ( °C). Find out more about the temperature of stars in Stellar guide
Class of stars Red dwarf
Red dwarfs are small, cool stars with surface temperatures of about 2,000–3,800 K, much cooler than the Sun. They usually have 8–50% of the Sun’s mass and shine very faintly, sometimes at just a tiny fraction of the Sun’s brightness. Classified mainly as spectral type M, they are the most common stars in the Milky Way, making up roughly 70–75% of its stellar population.

They fuse hydrogen slowly through the proton–proton chain and are fully convective, which allows them to use their fuel very efficiently. As a result, red dwarfs can live for tens of billions to trillions of years—far longer than the Sun. Many exoplanets orbit red dwarfs, including some in close habitable zones, though strong stellar activity can affect planetary environments.
Possible companions

 StM 336
 - 0 ly
Closest stars

 HD 156668
 0.77 M☉ 4.1 ly

Delta Herculis Aa
 2.4 M☉ 4.4 ly

LP 387-31
 - 5.7 ly

BD+29 3029
 - 6 ly

G 182-4
 - 6.8 ly
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Estimated values
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