File:PIA19354-CometLovejoy-20150130.jpg

原始文件 (1,799 × 1,799像素,文件大小:147 KB,MIME类型:image/jpeg


摘要

描述
English: PIA19354: NEOWISE Wise to Comet Lovejoy

http://photojournal.jpl.nasa.gov/catalog/PIA19354

http://www.jpl.nasa.gov/news/news.php?feature=4524

The NEOWISE spacecraft viewed comet C/2014 Q2 (Lovejoy) for a second time on January 30, 2015, as the comet passed through the closest point to our sun along its 14,000-year orbit, at a solar distance of 120 million miles (193 million kilometers). NEOWISE imaged the comet more than 20 times through its perihelion passage in late January 2015, from a distance of 70 million miles (112 million kilometers). NEOWISE's first images of the comet were taken in November 2014, when the comet was nearly a third farther than its closest distance from the sun.

In this image refinement of eight exposures, north is down and slightly right, and east is to the right and slightly up. The blue tail, composed mostly of ionized particles and small dust, extends in the anti-sunward direction, while the comet's path across the sky is mostly down and to the left in this image. The frame is half a degree on the sky, or about 62,000 miles (100,000 kilometers) at the comet.

Color in this image corresponds to specific infrared wavelengths. Blue represents light emitted at 3.4-micron wavelengths, while orange represents 4.6-micron light.

Comet Lovejoy was the brightest comet in Earth's sky in early 2015. A chart of its location in the sky during dates in January 2015 is at PIA19103 .For more information about NEOWISE (the Near-Earth Object Wide-field Survey Explorer), see http://neowise.ipac.caltech.edu.

NASA's Jet Propulsion Laboratory manages the NEOWISE mission for NASA's Science Mission Directorate in Washington. The Space Dynamics Laboratory in Logan, Utah, built the science instrument. Ball Aerospace & Technologies Corp. of Boulder, Colo., built the spacecraft. Science operations and data processing take place at the Infrared Processing and Analysis Center at the California Institute of Technology in Pasadena. Caltech manages JPL for NASA.
日期
来源 http://photojournal.jpl.nasa.gov/jpeg/PIA19354.jpg
作者 NASA/JPL-Caltech
本图像或视频收录于美国国家航空航天局 (NASA)喷气推进实验室(Jet Propulsion Laboratory),其照片编号是: PIA19354

此标签不表示文件的著作权状态。任何文件在附有此标签的同時还需要一个有效的著作权标签请参阅许可协议说明页面以了解更多信息。
其他语言:

许可协议

Public domain 本文件完全由NASA创作,在美国属于公有领域。根据NASA的版权方针,NASA的材料除非另有声明否则不受版权保护。(参见Template:PD-USGov/zhNASA版权方针页面JPL图片使用方针。)
警告:

说明

添加一行文字以描述该文件所表现的内容

此文件中描述的项目

描绘内容

文件历史

点击某个日期/时间查看对应时刻的文件。

日期/时间缩⁠略⁠图大小用户备注
当前2015年3月26日 (四) 18:182015年3月26日 (四) 18:18版本的缩略图1,799 × 1,799(147 KB)DrbogdanUser created page with UploadWizard

以下页面使用本文件:

全域文件用途

以下其他wiki使用此文件: