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HT Cassiopeiae
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Star HT Cassiopeiae

Binary star HT Cassiopeiae is located 463 light years away from the Sun. It consists of a white dwarf and a red dwarf. For now, there are no known exoplanets in this star system.
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Sun distance
463 light years
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HT Cassiopeiae A

White dwarf

Location +

Ascension iconRight ascension: 1h 10m 13.180s
Declination iconDeclination: 60° 4' 35.261'' (northern hemisphere)
Parallax iconParallax: 7.044
Distance iconSun distance: 463.051 ly | 142.0 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: 70 % M Sun
| 722.8 M Jupiter
 (estimate)
+
Star mass
The mass of the star HT Cassiopeiae A is unknown. Based on its other characteristics, it is estimated to be about 70 % 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: 0 % R Sun
| 0.1 R Jupiter
(estimate)
+
Star size
Radius of the star HT Cassiopeiae A is not known. Its estimated value based on other similar stars is about 0 % 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: 19100 K
 (estimate)
+
Star temperature
Surface temperature of HT Cassiopeiae A is estimated to be 19149 K, which is 331 % 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

HT Cassiopeiae B

Red dwarf

Basic characteristic

temperature iconTemperature: 19100 K
 (estimate)
+
Star temperature
Surface temperature of HT Cassiopeiae B is estimated to be 19149 K, which is 331 % 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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HT Cassiopeiae system structure

 HT Cassiopeiae A
HT Cassiopeiae B

More about HT Cassiopeiae

       HT Cassiopeiae 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
HT Cas, Gaia DR3 426306363477869696
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Frequently Asked Questions

How far is the HT Cassiopeiae system from the Sun?

The HT Cassiopeiae system is 463 light years or 142.0 parsecs from the Sun.

What galaxy is the HT Cassiopeiae star in?

The HT Cassiopeiae is in the Milky Way galaxy just like the Sun.

How many stars are in the HT Cassiopeiae system?

The HT Cassiopeiae system contains 2 stars.

What type of star is the HT Cassiopeiae?

The primary in the HT Cassiopeiae system is a White dwarf star.

What temperature is the HT Cassiopeiae?

The primary in the HT Cassiopeiae system has an effective temperature of K ( °C). Find out more about the temperature of stars in Stellar guide
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