What type of star is Alpheratz?
binary star
Alpheratz is located at around 97 light-years / 29.7 parsecs away from our Solar System. It has an apparent magnitude of 2.06, however, Alpheratz is a binary star system composed out of a B-type star, which is the brightest, and an early-type A star.
Is Alpheratz a main sequence star?
Its estimated age is 60 million years. Alpheratz is the brightest mercury-manganese star in the sky. The companion, Alpha Andromedae B, has the stellar classification A3V, indicating a white main sequence star. The spectral type is estimated based on the star’s brightness relative to the primary component.
What type of star is Almach?
With an apparent magnitude of 2.27, it is the third brightest point of light in Andromeda. It is only slightly fainter than Mirach and Alpheratz, the constellation’s brightest stars….Almach – Gamma Andromedae A.
| Spectral class | K3IIb |
|---|---|
| Radius | 80 R☉ |
| Temperature | 4,500 K |
| Rotational velocity | < 17 km/s |
| Constellation | Andromeda |
Who discovered alpha Andromedae?
The binary system described above has an optical visual companion, discovered by William Herschel on July 21, 1781. Designated as ADS 94 B in the Aitken Double Star Catalogue, it is a G-type star with an apparent visual magnitude of approximately 10.8.
What constellation is Alpheratz?
Andromeda
Alpha Andromedae/Constellations
Andromeda constellation The brightest star, Alpheratz (from the Arabic for “horse’s navel”; the star was once part of the constellation Pegasus), has a magnitude of 2.1.
What color star is Alpheratz?
Alpheratz is a main star in the constellation Andromeda and makes up the constellation outline. Based on the spectral type (B9p) of the star, the Alpheratz colour is blue . Alpheratz is the 55th brightest star in the night sky and is the brightest star in Andromeda based on the Hipparcos 2007 apparent magnitude.
Where can I find Alpheratz?
Another hint: look for Alpheratz as a brighter star slightly left of center, above the tree line.) Image via Edmund Garman/ Flickr. A star map showing the constellation Andromeda, with the square of Pegasus in the lower left.
Is Almach a binary star?
Almach star-system science The pair of contrasting stars appears to be around 10 arcseconds apart in the sky. The system of binary stars orbits each other with a period of around 4700 years. The brighter component, Gamma1 Andromedae, shines at +2.26 magnitude.
What is the name of the brightest star in the night sky?
Sirius
Sirius, also known as the Dog Star or Sirius A, is the brightest star in Earth’s night sky. The name means “glowing” in Greek — a fitting description, as only a few planets, the full moon and the International Space Station outshine this star. Because Sirius is so bright, it was well-known to the ancients.
Who named Andromeda?
Andromeda is named after the princess of Ethiopia whom, according to Greek mythology, the hero Perseus saved from sacrifice to the sea monster Cetus. Constellations of Andromeda and Triangulum (lower right) from Urania’s Mirror (c. 1825) by Richard Rouse Bloxam.
What is the magnitude of Alpheratz?
2.07
Alpha Andromedae/Magnitude
How far away from Earth is Alpheratz?
96.87 light years
Alpha Andromedae/Distance to Earth