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Nearby stars catalogue

HD 21749

Star HD 21749

Orange star HD 21749 is located 53 light years away from the Sun. It is a single star of spectral class K4.5V C, that has 68 % of solar mass. There are multiple known exoplanets in this system.

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Nearby stars catalogue

Sun distance
53 light years

HD 21749

Orange star, High proper motion star

Spectral class: K4.5V C

Location +

Right ascension: 3h 27m 0.072s

Declination: -63° 30' 0.721'' (southern hemisphere)

Parallax: 61.227

Sun distance: 53.270 ly | 16.3 pc

Basic characteristic

Mass: 68 % M Sun

Size: 76 % R Sun

Temperature: 4538 K | 0.79 T Sun

Photometry

Apparent magnitude (V): 8.1

Absolute magnitude (V): 7.1

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

HD 21749 system structure


HD 21749
	HD 21749 c	0.07 AU	3.7 M⊕	0.9 R⊕	7.8 days
	HD 21749 b	0.19 AU	23.2 M⊕	2.8 R⊕	35.6 days

More about HD 21749

Nearby star HD 21749 is a main sequence star that fuses hydrogen atoms into helium. It is approximately 80 % of the size of Sun and temperature on its surface is around 4538 K (4265 °C), which is about 79 % of Sun's temperature.

       HD 21749 can be found in southern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope.

Other designations of this star
CD−63 110 A, CPD−63 232 A, Gliese 143, GJ 143, HIC 16069, HIP 16069, SAO 248808, WDS J03270-6330A, TIC 279741379, TYC 8870-01392-1 A, 2MASS J03265922-6329569, TOI 186, NLTT 11017, LTT 1642, WISEA J032659.80-632959.1, Gaia EDR3 4673947174316727040

External sources

Simbad database (HD 21749)

Astronomical database SIMBAD (the Set of Identifications, Measurements and Bibliography for Astronomical Data)

Gaia database (Gaia EDR3 4673947174316727040)

Archive from the Gaia mission

TESS database (TOI 186.01)

Archive from the TESS mission

Frequently Asked Questions

How far is the HD 21749 system from the Sun?

The HD 21749 system is 53 light years or 16.3 parsecs from the Sun.

What galaxy is the HD 21749 star in?

The HD 21749 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 21749 system?

The HD 21749 is a single star, there are no other known stars in the system.

What type of star is the HD 21749?

The star HD 21749 is a Orange star star.

What temperature is star HD 21749?

The star HD 21749 has an effective temperature of 4538 K. Find out more about the temperature of stars in Stellar guide

Closest stars

L 127-124	-	7.4 ly
CD-58 538	-	7.6 ly
SCR J0420-7005	-	7.9 ly
WISE 0323-6025	-	8.4 ly
L 178-49	-	8.5 ly

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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.

Fresh and validated

Stellar Catalog is continuously updated with new information from research papers. Stellar and planetary data are validated by automatic processes as well as humans.