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TOI 1664

Star TOI 1664

Subgiant TOI 1664 is located 464 light years away from the Sun. It is a single star of spectral class F8IV-V, that has 117 % of solar mass. There is at least one exoplanet in this system.

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Nearby stars catalogue

Sun distance
464 light years

TOI 1664

Subgiant

Spectral class: F8IV-V

Location +

Right ascension: 18h 27m 45.099s

Declination: 55° 45' 20.724'' (northern hemisphere)

Parallax: 7.032

Sun distance: 463.823 ly | 142.2 pc

Basic characteristic

Mass: 117 % M Sun

Size: 134 % R Sun

Temperature: 6160 K | 1.07 T Sun

Photometry

Apparent magnitude (V): 9.7

Absolute magnitude (V): 3.9

Absolute stellar magnitude in different parts of the electromagnetic spectrum from infrared (K band) to ultraviolet (U band).

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

TOI 1664 system structure


	TOI 1664
		TOI 1664 b unconfirmed	n/a		2.5 R⊕	11.8 days

More about TOI 1664

Star TOI 1664 is a main sequence star that fuses hydrogen atoms into helium. It is is approximately 34 % bigger than the Sun and temperature on its surface is around 6160 K (5887 °C), which is about 107 % of Sun's temperature.

       TOI 1664 can be found in northern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope. The star is easily observable from Northern America, Europe and Asia.

Other designations of this star
HD 238876, Gaia DR3 2150643683074729216

External sources

The Orbital Eccentricity--Radius Distribution for Warm, Single Planets in TESS

Scientific study, Accepted: 23. 02. 2026

Gaia database (Gaia DR3 2150643683074729216)

Archive from the Gaia mission

News from this star system

TESS reveals how planet size shapes orbital eccentricity for warm single exoplanets

9. 3. 2026

Image: TESS reveals how planet size shapes orbital eccentricity for warm single exoplanets

TESS data shows that warm single exoplanets’ orbital shapes depend on their size: most small and medium planets have circular orbits, but larger gas giants are often found on highly eccentric paths....

Read article

Frequently Asked Questions

How far is the TOI 1664 system from the Sun?

The TOI 1664 system is 464 light years or 142.2 parsecs from the Sun.

What galaxy is the TOI 1664 star in?

The TOI 1664 is in the Milky Way galaxy just like the Sun.

How many stars are in the TOI 1664 system?

The TOI 1664 is a single star, there are no other known stars in the system.

What type of star is the TOI 1664?

The star TOI 1664 is a Subgiant star.

What temperature is star TOI 1664?

The star TOI 1664 has an effective temperature of 6160 K. Find out more about the temperature of stars in Stellar guide

Class of stars Subgiant

A subgiant is a term used to describe a luminous star that is typically running out of hydrogen for nuclear fusion and is thus departing from the main sequence. These stars are classified as Yerkes luminosity class IV.

About Stellar Catalog

Working with real data

Data in Stellar Catalog come from trusted scientific sources. Primary source is Gaia space telescope mapping the stars in Milky Way. Other sources include research papers, Simbad catalog and Exoplanet.eu database.

Estimated values

Objects listed in the Stellar Catalog often have values that are estimates. These estimates are determined using their known characteristics, such as spectral type, brightness across different wavelengths, distance from a star, and other factors.

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