The Declination is how far north or south the object is compared to the celestial equator and is expressed in degrees. The value comes from the Hipparcos Extended Catalog. Decapoda (Iota Cancri A) is a white to yellow very luminous supergiant star that can be located in the constellation of Cancer. The primary shines yellow, and its companion is blue. catalogues and names: i Cnc, NSV 04238, 48 Cnc, HR 3475, HD 74739, SAO 80416, BD +29 1824, FK5: 328, WDS 08467+2846A: constellation: Cancer Asellus Boraelis [Gamma (g) Cancri]: This star's name means the northern donkey, and is the second donkey in the Donkeys and Manger asterism. Timezone: Europe/London. At 9:30 p.m., Iota Cancri is the star at the bottom of the “Y”, about 30 degrees above the horizon. RA (J2000): 08h 46’41.83” declination: +28d 45’36.0” Included in the Astronomical League’s certificate list of 100 double stars. However with the 2007 release of updated Hipparcos files, the radius is now calculated at being round 19.94. In 2007, Hipparcos data was revised with a new parallax of 9.85000 which put Decapoda at a distance of 331.13 light years or 101.52 parsecs. different colors. 55 Cancri c (abbreviated 55 Cnc c) is an extrasolar planet in an eccentric orbit around the Sun-like star 55 Cancri A, making one revolution every 44.34 days. All three are comparable to Jupiter in mass. If you want that in miles, it is about 1,752,653,368,760,961.49, based on 1 Ly = 5,878,625,373,183.61 miles. It was separated from the B star by about 4 diffraction ring radii, which works out to a separation from the A star of about 6 arc seconds. The color of living nature, green, is also Cancer color — especially emerald green. To me Iota Cancri shows a bright gold-yellow for the primary star and a muted blue-green for the secondary star. [8] It spent much of its stellar life as a B-type main sequence star before expanding and cooling to its current state as it spent its core hydrogen. The items in red are values that I've calculated so they could well be wrong. Comments may be merged or altered slightly such as if an email address is given in the main body of the comment. Chris Thanks, haven't tried any close ones yet but plan to for sure, add some barlow power. is from Simbad, the Hipparcos data library based at the University at Strasbourg, France. Find Double star system called Iota Cancri yellow and white pair in the constellation Cancer taken with camera and medium focal length telescope Stock Images in HD and millions of other royalty-free stock photos, illustrations, and vectors in the Shutterstock collection. Both can easily be seen with a small telescope. The Sun's radius is 695,800km, therefore the star's radius is an estimated 12,478,387.59.km. the credits section) taken in the red channel. On par with Albireo and makes a great public showpiece. Based on the spectral type, we can deduce that the surface temperature of the star is in the order of between between 5,000 and 6,000K based on the notes from Harvard University. I’ll do a sketch of Iota Cancri one … It struck me that the opposite combination - bright blue & dim yellow - should be more common, since blue stars are intrinsically brighter than yellow, but it isn't! ... reveal two stars, of magnitudes 3.6 and 4.3. Hi there! [14] Preliminary results from polarimetric studies indicate that the planet has predominately blue color, is 1.36 times as large and 0.74 times as massive as Jupiter, meaning that the mean density is 0.36g/cm3. The Galacto-Centric Distance is the distance from the star to the Centre of the Galaxy which is Sagittarius A*. Located about 200 light-years away, this donkey shines slightly dimmer than the other at magnitude +4.7. The Radial Velocity, that is the speed at which the star is moving away/towards the Sun is 15.70000 km/s with an error of about 0.70 km/s . In truth the secondary is white, but you don't have to let on. Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 10.94000 which gave the calculated distance to Decapoda as 298.14 light years away from Earth or 91.41 parsecs. If you find this website useful please consider a small donation that will help covering hosting costs. The secondary star is a dwarf-star that is rotating so fast that it is throwing off material from around its equator. Spectral Type G7III. Decapoda estimated radius has been calculated as being 17.93 times bigger than the Sun. is the number of times that the star is from the Earth compared to the Sun. Cancer. Hipparcos was a E.S.A. 16 kilometers per second. Iota Cancri is a wide double star. [9] It spent much of its stellar life as a B-type main sequence star before expanding and cooling to its current state as it spent its core hydrogen. The star can be seen with the naked eye, that is, you don't need a telescope/binoculars to see it. The primary is orange and the secondary seemingly pale blue due to color contrast. The number of A.U. Its primary mission was to visit Pluto which at the time of launch (2006), Pluto was still a planet. with a bright yellow star and a dimmer blue star. ι Cancri is distant Actual values can be seen in the table below. Using the most recent figures given by the 2007 Hipparcos data, the star is 331.13 light years away from us. The primary is a yellow-hued G-type bright giant star of magnitude 4.0, [14] located 330 ± 20 light-years from Earth. Flickr photos, groups, and tags related to the "Iota," Flickr tag. The figure of 303.35 that I have given is based on the value in the Simbad Hipparcos Extended Catalogue at the University of Strasbourg from 2012. Absolute magnitude -0.78. ι Cancri belongs to spectral class G7 and has a luminosity class of III corresponding to a giant star. The combination of blue and gold is something I’d never seen and never expected to see. The map was generated using Night Vision, an awesome free application by Brian Simpson. If the R.A. is positive then its eastwards. Simplified finder chart for ι Cancri (iota Cancri). 308° (2016): One of winter-spring's finest doubles. The red dot in the diagram below shows where ι Cancri is situated in the Hertzsprung–Russell diagram. Attribution. Decapoda is a Binary or Multiple star system. Temperature of ι Cancri 4719K. Iota Cancri has a golden partner. It glows by the light of a star that formed within it Theta-1 Orionis, also called the Trapezium since it in fact consists of four stars visible through a small telescope. It’s not topaz yellow. Asellus Australis has a radius that is 11.00 times bigger than the Suns. moving far from the Sun at the speed of Finally, a clear night! ι Cancri belongs to spectral class G7 and has a luminosity class of III corresponding to a giant star. 55 Cancri c was discovered on June 13, 2002 and has a mass roughly half of Saturn . This expelled material surrounds the star but is … Iota Cancri (First attempt with prime focusing) uploaded in Multiple Stars: Very easily-pictured but beautiful double star in Cancer. for the next 10000 years is represented with the red arrow. The Right Ascension is how far expressed in time (hh:mm:ss) the star is along the celestial equator. Exoplanets. The time it will take to travel to this star is dependent on how fast you are going. Its nothing to fear as the stars are so far apart, they won't collide in our life-time, if ever. The proper motion of ι Cancri is Iota is one of my favorites. 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