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Nearby stars catalogue

HD 101581

Star HD 101581

Orange star HD 101581 is located 42 light years away from the Sun. It is a single star of spectral class K4.5Vk:, that has 74 % of solar mass. There are multiple known exoplanets in this system.

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Nearby stars catalogue

Sun distance
42 light years

HD 101581

Orange star, High proper motion star

Spectral class: K4.5Vk:

Location +

Right ascension: 11h 41m 1.482s

Declination: -44° 24' 14.813'' (southern hemisphere)

Parallax: 78.227

Sun distance: 41.694 ly | 12.8 pc

Basic characteristic

Mass: 74 % M Sun

Size: 63 % R Sun

Temperature: 4634 K | 0.8 T Sun

Luminosity: 0.14 L Sun

Photometry

Apparent magnitude (V): 7.8

Absolute magnitude (V): 7.2

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 101581 system structure


HD 101581
	HD 101581 b	0.05 AU	1 R⊕	4.5 days
	HD 101581 c	0.06 AU	1 R⊕	6.2 days
	HD 101581 d unconfirmed	0.07 AU	1 R⊕	7.9 days

More about HD 101581

Nearby star HD 101581 is a main sequence star that fuses hydrogen atoms into helium. It is approximately 60 % of the size of Sun and temperature on its surface is around 4634 K (4361 °C), which is about 80 % of Sun's temperature.

       HD 101581 can be found in southern celestial hemisphere, you cannot see it with naked eye, but you can observe this star with basic telescope. The star is also observable from Northern America, Europe and Asia.

Other designations of this star
LHS 2441, CD-43 7228, GJ 435, Gliese 435, HIC 56998, HIP 56998, LFT 835, LTT 4333, 2MASS J11410247-4424184, NLTT 28235, TIC 397362481, TYC 7753-1657-1, WISEA J114101.82-442416.0, Gaia EDR3 5378886891123024512

External sources

Two Earth-size Planets and an Earth-size Candidate Transiting the Nearby Star HD 101581

Scientific study, Accepted: 11. 12. 2024

Simbad database (HD 101581)

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

Gaia database (Gaia EDR3 5378886891123024512)

Archive from the Gaia mission

News from this star system

Two Earth-sized planets and a similar-sized candidate found to orbit a nearby star HD 101581

...

13.12.2024

Read article >

Frequently Asked Questions

How far is the HD 101581 system from the Sun?

The HD 101581 system is 42 light years or 12.8 parsecs from the Sun.

What galaxy is the HD 101581 star in?

The HD 101581 is in the Milky Way galaxy just like the Sun.

How many stars are in the HD 101581 system?

The HD 101581 is a single star, there are no other known stars in the system.

What type of star is the HD 101581?

The star HD 101581 is a Orange star star.

What temperature is star HD 101581?

The star HD 101581 has an effective temperature of 4634 K. Find out more about the temperature of stars in Stellar guide

Closest stars

2MASS J11553952-3727350	0.06 M☉	6.1 ly
V* V857 Cen	0.3 M☉	7.1 ly
2MASS J11220826-3512363	0 M☉	7.5 ly
Gliese 438	0.4 M☉	7.6 ly
L 396-10	-	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.