ज़ेटा ओरायोनिस तारा

50Zet Ori

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Alnitak is a rare O-type star, the hottest spectral class, its blue colour matched by a negative B–V index of −0.199. Designated Zeta Orionis, it forms the easternmost star of Orion's Belt and lies about 736 light-years away. At apparent magnitude 1.74 it is the brightest O-type star of the night sky, and its absolute magnitude of −5.03 marks an intrinsic luminosity thousands of times the Sun's. A near-equatorial declination of −1° makes Alnitak visible worldwide, where it anchors one end of the Belt that makes Orion among the most readily recognised constellations.

भौतिक गुण

वर्णक्रम वर्ग O Class O — O-type (Blue)
रंग सूचकांक (B−V) -0.199

प्रेक्षण

आभासी परिमाण +1.74
निरपेक्ष परिमाण -5.03
दूरी 736 ly
नक्षत्रमंडल Orion

स्थिति

दक्षिणांश 5h 40.76m
दिगंश -1° 56.55′

Frequently Asked Questions

What type of star is ज़ेटा ओरायोनिस तारा?
ज़ेटा ओरायोनिस तारा is a Class O — O-type (Blue) star.
How far is ज़ेटा ओरायोनिस तारा from Earth?
ज़ेटा ओरायोनिस तारा is approximately 736.2 light-years from Earth.
Can you see ज़ेटा ओरायोनिस तारा with the naked eye?
With an apparent magnitude of 1.74, ज़ेटा ओरायोनिस तारा is visible to the naked eye.
What constellation is ज़ेटा ओरायोनिस तारा in?
ज़ेटा ओरायोनिस तारा is located in the constellation Orion.