Alpha centauri from Aya Nishizaki
1. Dita Ayu Pertiwi FAA 114 016
2. Alpha Centauri
3. Definition Alpha Centauri (α Centauri, α Cen; also known as Rigel Kent )is the brightest star in the southernconstellation of Centaurus and is currently inside the G-cloud. Although it appears to the unaided eye as a single object, Alpha Centauri is actually a binary star system(designated Alpha Centauri AB or α Cen AB) whose combined visual magnitude of −0.27 makes it the third-brightest star in the night sky after the −1.46 magnitude Sirius and the −0.72 magnitude Canopus.
4. The two main components are Alpha Centauri A and Alpha Centauri B. A third star, known as Proxima Centauri, or Alpha Centauri C (α Cen C), is probably gravitationally associated with Alpha Centauri AB. Proxima is at the slightly smaller distance of 1.29 parsecs or 4.24 light years from the Sun, making it the closest star to the Sun, even though it is not visible to the naked eye. The separation of Proxima from Alpha Centauri AB is about 0.06 parsecs 0.2 light years or 13,000 astronomical units (AU); equivalent to 400 times the size of Neptune's orbit.
5. Alpha Centauri A is the principal member, or primary, of the binary system being slightly larger and more luminous than the Sun. It is a solar-like main-sequence star with a similar yellowish color
6. Alpha Centauri B is the companion star, or secondary, of the binary system, and is slightly smaller and less luminous than the Sun. Alpha Centauri B is about 90% the mass of the Sun and 14% smaller in radius
7. Alpha Centauri C also known as Proxima Centauri, is of spectral class M5 Ve[ or M5 VIe, suggesting this is either a small main-sequence star (Type V) or subdwarf (VI) with emission lines Its B−V color index is +1.90 and its mass is about 0.123 M☉, 129 Jupiter masses.
8. How to see it Unluckily for us in the Northern Hemisphere, Alpha Centauri is located very far to the south on the sky’s dome. Most North Americans never see it. The cut-off latitude is about 29 degrees north, and anyone north of that is out of luck. In the U.S. the line passes near Houston and Orlando, but even from the Florida Keys, the star never rises more than a few degrees above the southern horizon.
9. For northern observers, there really are no good pointer stars to Alpha Centauri. When the bright star Arcturus is high overhead, Alpha Centauri might low in your southern sky, assuming you are south of 29 degrees N. latitude. Arcturus is the brightest star in Arcturus is the brightest star in the constellation Boötes and the northerncelestial hemisphere. With a visual magnitude of −0.04, it is the fourth brightest star in the nightt sky, after −1.46 magnitude Sirius, −0.86 magnitude Canopus, and −0.27 magnitude Alpha Centauri. It is a relatively close star at only 36.7 light-years from Earth, and, together with Vega and Sirius, one of the most luminous stars in the constellation Boötes and the northerncelestial hemisphere. With a visual magnitude of −0.04, it is the fourth brightest star in the nightt sky, after −1.46 magnitude Sirius, −0.86 magnitude Canopus, and −0.27 magnitude Alpha Centauri. It is a relatively close star at only 36.7 light-years from Earth, and, together with Vega and Sirius, one of the most luminous stars in the Sun's neighborhood. the Sun's neighborhood.
10. History and Myth
11. pandora
12. polyphemus
13. Who Don’t Know ? Remember..
14. Conclusion 1. Alpha Centauri is cool ! 2. Alpha Centauri is the brightest star in the southernconstellation of Centaurus 3. The Mythologist Of Alpha Centauri is Come Fom Greek and Rome 4. Proxima Centauri is The Nearest star from our Sun
15. Thanks For The Attention
1. Dita Ayu Pertiwi FAA 114 016
2. Alpha Centauri
3. Definition Alpha Centauri (α Centauri, α Cen; also known as Rigel Kent )is the brightest star in the southernconstellation of Centaurus and is currently inside the G-cloud. Although it appears to the unaided eye as a single object, Alpha Centauri is actually a binary star system(designated Alpha Centauri AB or α Cen AB) whose combined visual magnitude of −0.27 makes it the third-brightest star in the night sky after the −1.46 magnitude Sirius and the −0.72 magnitude Canopus.
4. The two main components are Alpha Centauri A and Alpha Centauri B. A third star, known as Proxima Centauri, or Alpha Centauri C (α Cen C), is probably gravitationally associated with Alpha Centauri AB. Proxima is at the slightly smaller distance of 1.29 parsecs or 4.24 light years from the Sun, making it the closest star to the Sun, even though it is not visible to the naked eye. The separation of Proxima from Alpha Centauri AB is about 0.06 parsecs 0.2 light years or 13,000 astronomical units (AU); equivalent to 400 times the size of Neptune's orbit.
5. Alpha Centauri A is the principal member, or primary, of the binary system being slightly larger and more luminous than the Sun. It is a solar-like main-sequence star with a similar yellowish color
6. Alpha Centauri B is the companion star, or secondary, of the binary system, and is slightly smaller and less luminous than the Sun. Alpha Centauri B is about 90% the mass of the Sun and 14% smaller in radius
7. Alpha Centauri C also known as Proxima Centauri, is of spectral class M5 Ve[ or M5 VIe, suggesting this is either a small main-sequence star (Type V) or subdwarf (VI) with emission lines Its B−V color index is +1.90 and its mass is about 0.123 M☉, 129 Jupiter masses.
8. How to see it Unluckily for us in the Northern Hemisphere, Alpha Centauri is located very far to the south on the sky’s dome. Most North Americans never see it. The cut-off latitude is about 29 degrees north, and anyone north of that is out of luck. In the U.S. the line passes near Houston and Orlando, but even from the Florida Keys, the star never rises more than a few degrees above the southern horizon.
9. For northern observers, there really are no good pointer stars to Alpha Centauri. When the bright star Arcturus is high overhead, Alpha Centauri might low in your southern sky, assuming you are south of 29 degrees N. latitude. Arcturus is the brightest star in Arcturus is the brightest star in the constellation Boötes and the northerncelestial hemisphere. With a visual magnitude of −0.04, it is the fourth brightest star in the nightt sky, after −1.46 magnitude Sirius, −0.86 magnitude Canopus, and −0.27 magnitude Alpha Centauri. It is a relatively close star at only 36.7 light-years from Earth, and, together with Vega and Sirius, one of the most luminous stars in the constellation Boötes and the northerncelestial hemisphere. With a visual magnitude of −0.04, it is the fourth brightest star in the nightt sky, after −1.46 magnitude Sirius, −0.86 magnitude Canopus, and −0.27 magnitude Alpha Centauri. It is a relatively close star at only 36.7 light-years from Earth, and, together with Vega and Sirius, one of the most luminous stars in the Sun's neighborhood. the Sun's neighborhood.
10. History and Myth
11. pandora
12. polyphemus
13. Who Don’t Know ? Remember..
14. Conclusion 1. Alpha Centauri is cool ! 2. Alpha Centauri is the brightest star in the southernconstellation of Centaurus 3. The Mythologist Of Alpha Centauri is Come Fom Greek and Rome 4. Proxima Centauri is The Nearest star from our Sun
15. Thanks For The Attention
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