HD 111597
HD 111597 is a star located approximately 230 light-years from Earth in the constellation of Cetus. It is a G-type main-sequence star, also known as an orange dwarf star, and is considered one of the closest stars to the Sun within a few hundred light-years.
Observational History
The first recorded observations of HD 111597 date back to the 18th century, when it was observed by amateur astronomers using telescopes. However, it was not until the 20th century that more sophisticated methods were used to measure the star's properties.
Key Concepts
HD 111597 is a G-type main-sequence star, which means that it is a medium-sized star with a surface temperature of around 5,500 Kelvin. This type of star is characterized by its yellowish color and moderate luminosity. The star's mass is estimated to be around 1 solar mass, which is slightly larger than the Sun.
Stellar Properties
The following table lists some key properties of HD 111597:
| Property | Description |
|---|---|
| Mass | 1 solar mass (M) |
| Surface Temperature | 5,500 Kelvin (K) |
| Luminosity | 0.15 solar luminosities (L) |
| Radius | 1.15 solar radii (R) |
| Distance | 230 light-years |
Technical Details
The following table lists some technical details of HD 111597:
| Property | Description |
|---|---|
| Spectral Type | G-type main-sequence star |
| Composition | Hydrogen (75%), Helium (25%) |
| Magnetic Field Strength | 3.5 microgauss (μG) |
| Rotation Rate | 22 days |
Orbital Characteristics
The star HD 111597 has a stable stellar companion, which is thought to be a white dwarf. The system's orbital period is estimated to be around 150 years.
Applications/Uses
HD 111597 is of interest to astronomers due to its proximity to Earth and its unique properties. The star has been used as a reference point for measuring the distance to nearby stars and has also been studied in detail using spectroscopic analysis.
Astronomical Observations
The star has been observed by amateur astronomers using telescopes, and its properties have been measured using a variety of techniques. The star's spectral type has been confirmed using spectrographic analysis, which reveals the presence of hydrogen and helium in its atmosphere.
Impact/Significance
HD 111597 is significant due to its proximity to Earth and its unique properties. The star's stability and low luminosity make it an ideal target for studying stellar evolution and the properties of G-type main-sequence stars.
Cultural Significance
The star has no cultural or historical significance, as it is a relatively unknown object in the astronomical community.
Related Topics
The following related topics are of interest to astronomers and astronomers studying HD 111597:
| Topic | Description |
|---|---|
| G-type main-sequence stars | A class of stars characterized by their surface temperature and luminosity. |
| Spectral type classification | A method used to classify stars based on their spectral characteristics. |
| Stellar companions | Stars that are gravitationally bound to a single star, often resulting in an orbital system. |
| Astrobiology and the search for life beyond Earth | A field of study focused on the potential for life on other planets and celestial bodies. |
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