Sedna has a V band absolute magnitude of about 1.8, and it is estimated to have an albedo of about 0.32, giving it a diameter of approximately 1,000 km. At the time of its discovery it was the brightest object found in the Solar System since Pluto in 1930. In 2004, the discoverers placed an upper limit of 1,800 km on its … See more Sedna (minor-planet designation 90377 Sedna) is a dwarf planet in the outermost reaches of the Solar System discovered in 2003. Spectroscopy has revealed that Sedna's surface composition is largely a mixture of water, See more In their paper announcing the discovery of Sedna, Brown and his colleagues described it as the first observed body belonging to the Oort cloud, the hypothetical cloud of See more Sedna's highly elliptical orbit means that the probability of its detection was roughly 1 in 80, which suggests that, unless its discovery was a fluke, another 40–120 Sedna-sized objects … See more Sedna will come to perihelion around July 2076. This close approach to the Sun provides an opportunity for study that will not occur again for … See more Discovery Sedna (provisionally designated 2003 VB12) was discovered by Michael Brown (Caltech), Chad Trujillo (Gemini Observatory), and See more Sedna has the second longest orbital period of any known object in the Solar System of comparable size or larger (after Leleākūhonua), calculated at around 11,400 years. Its orbit is extremely eccentric, with an aphelion estimated at 937AU and a See more The discovery of Sedna resurrected the question of which astronomical objects should be considered planets and which should not. On 15 March 2004, articles on Sedna in the popular press reported that a tenth planet had been discovered. This question was … See more Web[12] [64] The ring has a radius of about 2,287 km, a width of ~70 km and an opacity of 0.5. It is well within Haumea's Roche limit, which would be at a radius of about 4,400 km if it …

225088 Gonggong - Wikipedia

WebFeb 3, 2024 · Mean Radius. Radius of a sphere with the equivalent volume of the planet. Mass. Total mass of the planet. Bulk Density. Density computed using the total volume and mass of the planet. Sidereal Rotation Period. Time required for a full rotation of the planet relate to fixed stars. Sidereal Orbital Period. WebJan 22, 2024 · The size of the world is estimated to be about 1000 kilometers, which makes it about half the diameter of Pluto (2250 km) or around same size as Pluto's moon, Charon. Originally, Sedna was believed … boss plow headlight kit

Planetary Physical Parameters - NASA

WebJan 10, 2013 · OBSERVER NOTES Across the globe pictured above, the three solid lines correspond to the northern limit, centerline, and southern limit of Sedna's shadow. The northern and southern limits correspond to a radius of 928 km. The upper and lower dashed lines indicate 3-sigma errors. Webএরিস. এরিস ( অপ্রধান গ্রহ উপাধি ১৩৬১৯৯ এরিস) হল সৌরজগত -এর সবচেয়ে বিশাল এবং পরিচিত দ্বিতীয় বৃহত্তম বামন গ্রহ । [২২] এটি বিক্ষিপ্ত ... WebSedna is between 1,200 and 1,600 km (700 and 1,000 miles) in diameter, and it was found to have a highly elliptical orbit, which took it from 76 times the Earth -Sun distance to 1,007 … boss in earthbore cave