C/2002 V1
外观
发现 | |
---|---|
发现者 | NASA喷射推进实验室 (608)[1] |
发现日 | 2002年11月6日 |
临时编号 | C/2002 V1, 2002 V1, Comet NEAT |
轨道特性考 | |
历元 | 2452634.5 (December 26, 2002) |
远日点 | ~2,230 AU[2] (Q) |
近日点 | 0.099258 AU (q) |
半长轴 | ~1,100 AU[2] (a) |
离心率 | 0.999017 |
周期 | ~37,000 yr[2][3] |
轨道倾角 | 81.706° |
历次近日点 日期 | 2003年2月18日 |
下次近日点 日期 | unknown |
C/2002 V1 (NEAT)是一颗非周期彗星,出现在2002年11月。这颗彗星的视星等峰值约为–0.5等,成为自1935年以来观测到的第八亮彗星[4]。太阳和太阳圈探测器于2003年2月观测到了这颗彗星。这颗彗星在接近太阳时未能分裂,引起了一些争议,因为一些科学家预期它是一颗小彗星[5]。
C/2002 V1彗星在经过太阳附近时受到日冕物质抛射的撞击。[6]。2003年2月有56个日冕物质抛射。2003年2月18日,C/2002 V1 (NEAT) 距离太阳5.7度。从太阳和太阳圈探测器观察到的 C/2002 V1 (NEAT) 看起来令人印象深刻,由于彗发和尾部尘埃的光向前散射造成的。
参考资料
[编辑]- ^ MPEC 2002-V31 : COMET C/2002 V1 (NEAT). IAU Minor Planet Center. 2002-11-07 [2011-04-07].
- ^ 2.0 2.1 2.2 Horizons output. Barycentric Osculating Orbital Elements for Comet C/2002 V1 (NEAT). [2011-04-06]. (Solution using the Solar System Barycenter and barycentric coordinates. Select Ephemeris Type:Elements and Center:@0)
- ^ Kronk, Gary W. C/2002 V1 (NEAT). Cometography: 1. [2008-08-05]. (原始内容存档于2008-05-11).
- ^ Brightest comets seen since 1935. Harvard: 1. 2009-02-12 [2011-04-07]. (原始内容存档于2011-12-28).
- ^ Britt, Robert Roy. Alleged NASA Cover-up of Menacing 'NEAT' Comet Threat is Pure Bunk, Experts Say. Space.com. 28 February 2003 [2008-08-05]. (Yahoo Groups)
- ^ Britt, Robert Roy. Amazing Live Images: Sungrazing Comet Possibly Hit by Solar Eruption. Space.com. 18 February 2003 [2008-08-05]. (A solar eruption, called a coronal mass ejection (CME), appears to have hit the comet Monday, Brekke said. Scientists think they observed a kink propagating down the comet's ion tail.)
外部链接
[编辑]- JPL Small-Body Database Browser. NASA.
- Surf the Web to see the Sun-dancing comet (ESA 2003-Feb-12)
- Comet Neat Passes an Erupting Sun (APOD 2003 February 24)
- Spacewatch Friday: Promising New Comet Called NEAT (C/2002 V1) Graces Evening Sky – Space.com
- News story as comet hit by Coronal Mass Ejection
- Article about the Comet NEAT Conspiracy
- Images of Comet NEAT taken by LASCO during perihelion
- SOHO Hotshots of Comet NEAT