MeshNomad on Nostr: HD 37439, also cataloged as **HR 1929** and **BD+21 918**, is a main-sequence star ...
HD 37439, also cataloged as **HR 1929** and **BD+21 918**, is a main-sequence star located in the constellation **Taurus**. With an apparent magnitude of **6.34**, it is on the threshold of naked-eye visibility under optimal dark-sky conditions.
**Key Characteristics:**
- **Spectral Type:** A1Vn, indicating a white-hued, hydrogen-burning main-sequence star.
- **Color Indices:**
- **B–V:** 0.06
- **U–B:** 0.1
- **Radial Velocity:** Approximately 0.1 km/s, suggesting minimal motion toward or away from the Solar System.
**Position (Epoch J2000.0):**
- **Right Ascension:** 05h 39m 27s
- **Declination:** +21° 45′ 46″
These coordinates place HD 37439 within the celestial boundaries of Taurus, making it observable from many locations, particularly during the constellation's prominence in the night sky.
For amateur astronomers aiming to locate HD 37439, a telescope or high-powered binoculars are recommended due to its moderate brightness. Aligning your equipment to the provided coordinates will facilitate observation.
information provided is based on data available up to April 2025. For the most current details, consulting star catalogs or databases such as SIMBAD is advisable.*
Published at
2025-04-06 18:05:49Event JSON
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"tags": [],
"content": "HD 37439, also cataloged as **HR 1929** and **BD+21 918**, is a main-sequence star located in the constellation **Taurus**. With an apparent magnitude of **6.34**, it is on the threshold of naked-eye visibility under optimal dark-sky conditions.\n\n**Key Characteristics:**\n\n- **Spectral Type:** A1Vn, indicating a white-hued, hydrogen-burning main-sequence star.\n- **Color Indices:**\n - **B–V:** 0.06\n - **U–B:** 0.1\n- **Radial Velocity:** Approximately 0.1 km/s, suggesting minimal motion toward or away from the Solar System.\n\n**Position (Epoch J2000.0):**\n\n- **Right Ascension:** 05h 39m 27s\n- **Declination:** +21° 45′ 46″\n\nThese coordinates place HD 37439 within the celestial boundaries of Taurus, making it observable from many locations, particularly during the constellation's prominence in the night sky.\n\nFor amateur astronomers aiming to locate HD 37439, a telescope or high-powered binoculars are recommended due to its moderate brightness. Aligning your equipment to the provided coordinates will facilitate observation.\n\ninformation provided is based on data available up to April 2025. For the most current details, consulting star catalogs or databases such as SIMBAD is advisable.* ",
"sig": "e3feaa889187ce47fb02f2d3f2e2f4f54b3d562300044dc7fdd4fb7b8b93ab4c063a040045b4e8dc428fc3f435d01800b33c350df7db70df6b3ad23f1d42e64a"
}