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Nearby stars catalogue

HAT-P-34

Star HAT-P-34

Yellow-White star HAT-P-34 is located 838 light years away from the Sun. It is a single star of spectral class F8, that has 136 % of solar mass. There is at least one exoplanet in this system.

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Nearby stars catalogue

Sun distance
838 light years

HAT-P-34

Yellow-White star

Spectral class: F8

Location +

Right ascension: 20h 12m 46.894s

Declination: 18° 6' 17.403'' (equatorial region)

Parallax: 3.948

Sun distance: 838.221 ly | 257.0 pc

Basic characteristic

Mass: 136 % M Sun

Size: 145 % R Sun

Temperature: 6509 K | 1.13 T Sun

Age: 1.7 billions years | 0.37 Sun

Photometry

Apparent magnitude (V): 10.2

Absolute magnitude (V): 3.1

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

HAT-P-34 system structure


	HAT-P-34
		HAT-P-34 b	0.09 AU	1157.2 M⊕	12.8 R⊕	5.5 days

More about HAT-P-34

Star HAT-P-34 is is approximately 45 % bigger than the Sun and temperature on its surface is around 6509 K (6236 °C), which is about 113 % of Sun's temperature.

       HAT-P-34 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 351766, TOI-1257, BD+17 4250, Sansuna

Frequently Asked Questions

How far is the HAT-P-34 system from the Sun?

The HAT-P-34 system is 838 light years or 257.0 parsecs from the Sun.

What galaxy is the HAT-P-34 star in?

The HAT-P-34 is in the Milky Way galaxy just like the Sun.

How many stars are in the HAT-P-34 system?

The HAT-P-34 is a single star, there are no other known stars in the system.

What type of star is the HAT-P-34?

The star HAT-P-34 is a Yellow-White star star.

What temperature is star HAT-P-34?

The star HAT-P-34 has an effective temperature of 6509 K. Find out more about the temperature of stars in Stellar guide

Stellar Brief

13. 11. 2026

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Today's Stellar Brief

About Stellar Catalog

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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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