Credit: NASA, ESA, and Z. Levay (STScI/AURA)

은하들, 항성들, 그리고 아이손 혜성!

Galaxies, stars, and comet ISON!

Release Date: July 25, 2013.

2013년 4월에 허블 우주 망원경(Hubble Space Telescope, HST)으로 촬영하여 합성한 컬러 사진에서 태양 근접 혜성인 아이손 (ISON) 혜성은 겉보기에 무수히 많은 은하들과 소수의 항성들을 배경으로 나타난다.   

이 사진은 ISONblog에 있는 오리지널 이미지 중의 하나이다. 아이손 블로그(ISONblog,는 허블 우주 망원경(HST) 천문학자들과 우주 망원경 과학 연구소 (Space Telescope Science Institute, STScl)의 부원들에 의해 아이손 혜성의 유일한 분석 자료들을 제공해주는 온라인 소스이다. 

Image Type: Astronomical/Illustration

Credit: NASA, ESA, and Z. Levay (STScI/AURA)

<About the Object>

Object Name: Comet ISON

Object Description: Comet

Distance: At the time of the Hubble observations on April 30, 2013, the comet was 3.9 astronomical units (363 million miles) from the Sun. The comet was 4.32 astronomical units (402 million miles) from Earth.

<About the Data>

Data Description: The image was created from Hubble data from proposal 13229 by the Hubble Heritage Team, PI: Z. Levay, M. Mutchler, C. Christian, L. Frattare, W. Januszewski, M. Livio, J. Mack, and J. Sokol (STScI/AURA), and K. Noll (NASA/GSFC). High-level science products for these data are available from the MAST archive.

Instrument: WFC3/UVIS

Filters: F606W (V) and F814W (I)

<About the Release>

Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)

Release Date: July 25, 2013

Color: This image is a composite of separate exposures acquired by the WFC3/UVIS instrument. Several filters were used to sample various wavelengths. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are:

F606W (V) (of comet) grayscale

F606W (V) cyan/blue

F814W (I) red/orange

 - References

Posted by starmaker 꿈꾸는 밤하늘

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