It is a binary star, believed to consist of a white dwarf and a Mira -type variable red giant. The nebula is known as Cederblad The primary star is an orange giant with an apparent magnitude of 4. The companion is another binary star, composed of two magnitude 10 stars.
The planet orbiting the primary is called 91 Aquarii b or HD b. It orbits the star at the average distance of Gliese is a red dwarf, 29 light years distant. The star has a Jupiter-like planet, Gliese b, orbiting it at a distance of 2.
The planet was discovered in August It was the first long-period Jupiter-like planet discovered orbiting a red dwarf. Gliese is another red dwarf, only about 15 light years distant. The star is very faint, though, and with an apparent magnitude of In , it has been confirmed that Gliese has four extrasolar planets in its orbit. The planet closest to the star is believed to be either a small Neptune-like planet or a large terrestrial one.
The middle planets are similar to Jupiter. The outer planet is close to Uranus in terms of mass. It has an apparent magnitude of 3. The star in an M-type red giant, about light years away. It is an irregular variable star with a mean apparent magnitude of 3. It is a white subgiant and a suspected variable. M2 is a globular cluster located five degrees north of Sadalsuud Beta Aquarii.
It is 13 billion years old and contains about , stars, including 21 known variables. With a diameter spanning light years, it is one of the largest globular clusters known. M2 is approximately 37, light years distant and has an apparent magnitude of 6. The brightest stars in the cluster, mostly red and yellow giants, have a magnitude of Charles Messier discovered the cluster in , but believed it to be a nebula.
German astronomer William Herschel was the first to resolve the stars in the cluster in Messier 72 is also a globular cluster, approximately 53, light years distant. It lies well beyond the Galactic Centre.
It is about light years in diameter and has an apparent magnitude of 9. It contains several blue giant stars and is considered to be a young cluster. It also has a significant number of variable stars, 42 known ones, mostly RR Lyrae type. The brightest star in the cluster has an apparent magnitude of Both he and Charles Messier, who included the cluster in his catalogue, believed the object to be a faint nebula.
The cluster is not an easy one to observe. In a inch telescope, it appears only as a faint patch. The stars can, however, be resolved in a inch telescope. M72 is located three degrees to the south and 1. Messier 73 is an asterism of four stars that appear close to each other in the night sky, but are really not connected.
This site cannot run without your voluntary donations. We don't use Ads. If you find this website useful please consider a small donation, it will help covering hosting costs. Thank you! If you have any feedback, please get in contact. All Constellations » Aquarius ». Magnitude of Sadachbia 3. Azimuth: Max altitude: DSS2 image of Sadachbia.
Star Names. The star is catalogued in the Tycho-2 star catalogue as TYC The catalogue lists 2 millions stars and its homepage is E. Sir John named the stars in the constellation with a number and its latin name, this star's Flamsteed designation is 48 Aquarii. The Flamsteed name can be shortened to 48 Aqr. Gould stars are predominantly in the Southern and Equatorial constellations but do appear in northern constellations such as Bootes and Orion. There are no stars with a Gould designation in Ursa Major for example.
BD number is the number that the star was filed under in the Durchmusterung or Bonner Durchmusterung, a star catalogue that was put together by the Bonn Observatory between to Sadachbia Travel Time The time it will take to travel to this star is dependent on how fast you are going.
A note about the calculations, when I'm talking about years, I'm talking non-leap years only days. The New Horizons space probe is the fastest probe that we've sent into space at the time of writing. Its primary mission was to visit Pluto which at the time of launch , Pluto was still a planet.
Mach 1 is the speed of sound, Mach 2 is twice the speed of sound. Corncorde before it was retired was the fastest commercial airline across the Atlantic and only one that could do Mach 2. The source of the information if it has a Hip I. Hipparcos was a E. The items in red are values that I've calculated so they could well be wrong. The information was obtained as of 12th Feb Below is a tabular view of the star facts with the values of the Sun on the right so you can compare against our own star, the Sun.
The Sun is our nearest star and it is what keeps us warm and gives us light as we complete one orbit in If you want to see the comparison between Sadachbia and our star, the Sun, you will need a screen of at least px across.
Rotating your screen maybe sufficient to see the Stellar values for comparison. The map was generated using Night Vision , an awesome free application by Brian Simpson. There's no register feature and no need to give an email address if you don't need to.
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