Shipping time (Note: Shipping times are calculated once the order has been shipped, not once the order has been placed): This refers to the time it takes for items shipped to the destination. US orders are shipped by USPS First Class Package Service.Processing time: Order verification, tailoring, quality check and packaging. Most orders are dispatched within 24 hours after the order is placed.The time frame for orders is divided into two parts: The rotation of the image on the sky with respect to the north pole of the celestial sphere.We are pleased to offer Free USPS First Class Shipping within the US on all orders $150.00 and over and free international shipping on orders $200 and over (not including taxes, etc.). The date and time the release content became public.Ī brief description of the methods used to convert telescope data into the color image being presented. The primary individuals and institutions responsible for the content. The camera filters that were used in the science observations. The date(s) that the telescope made its observations and the total exposure time. The science instrument used to produce the data. "PI" refers to the Principal Investigator. Science Team: The astronomers who planned the observations and analyzed the data.Proposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.The physical size of the object or the apparent angle it subtends on the sky. Interstellar distances can also be measured in parsecs. Solar system are usually measured in Astronomical Units (AU). The physical distance from Earth to the astronomical object. One of 88 recognized regions of the celestial sphere in which the object appears. Right ascension – analogous to longitude – is one component of an object's position.ĭeclination – analogous to latitude – is one component of an object's position. In this case, the assigned colors are:Ī name or catalog number that astronomers use to identify an astronomical object. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. Several filters were used to sample broad wavelength ranges. These images are composites of separate exposures acquired by the ACS and WFC3 instruments on the Hubble Space Telescope. The HST observations include those from programs 12065 (M. Gravitationally Lensed Star in Galaxy Clusterĩ.4 billion light-years or redshift = 1.5 (LS1) 5 billion light-years (cluster) The panels at the right show the view in 2011, without Icarus visible, compared with the star’s brightening in 2016.Ĭredits NASA, ESA, and P. Analysis of these colors showed it was a blue supergiant star in the background galaxy whose magnification grew for several weeks due to an intervening object, probably a star, in the galaxy cluster. Even though the object subsequently became three times brighter in one month, the colors of the light coming from the object did not change. The team had been using Hubble to monitor a supernova in the far-off spiral galaxy when, in 2016, they spotted a point of light near the supernova that began to brighten. Called MACS J1149+2223, this cluster, shown at left, sits between the Earth and the galaxy that contains the distant star. It is only visible because it is being magnified by the gravity of a massive galaxy cluster, located about 5 billion light-years from Earth. Icarus, whose official name is MACS J1149+2223 Lensed Star 1, is the farthest individual star ever seen. Four Successful Women Behind the Hubble Space Telescope's Achievements. Characterizing Planets Around Other Stars.Measuring the Universe's Expansion Rate.
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