Fading Stingray Nebula

 Fading Stingray Nebula

This image compares two drastically different portraits of the Stingray nebula captured by NASA’s Hubble Space Telescope 20 years apart. The image on the left, taken with the Wide Field and Planetary Camera 2 in March 1996, shows the nebula’s central star in the final stages of its life. The gas being puffed off by the dying star is much brighter when compared to the image of the nebula at the right, captured in January 2016 using the Wide Field Camera 3. The Stingray nebula is located in the direction of the southern constellation Ara (the Altar).

Credits

NASA, ESA, B. Balick (University of Washington), M. Guerrero (Instituto de Astrofísica de Andalucía), and G. Ramos-Larios (Universidad de Guadalajara)

About The Object
Object Name Hen 3-1357 (Stingray Nebula)
Object Description Planetary Nebula
R.A. Position 17:16:21.07
Dec. Position -59:29:23.64
Constellation Ara
Distance 18,260 light-years
Dimensions Image is about 6 arcsec across (about 0.5 light-years)
About The Data
Data Description The HST observations include those from programs (M. Bobrowsky) and (Z. Edwards)
Instrument WFCP2 and WFC3/UVIS
Exposure Dates 09 March 1996 and 22 January 2016
Filters F502N, F656N, F658N
About The Image
Color Info These images are a composite of separate exposures acquired by the WFPC2 and WFC3/UVIS instruments on the Hubble Space Telescope. Several filters were used to sample narrow wavelength ranges. 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: Blue: F502N Green: F656N Red: F658N
About The Object
Object Name A name or catalog number that astronomers use to identify an astronomical object.
Object Description The type of astronomical object.
R.A. Position Right ascension – analogous to longitude – is one component of an object's position.
Dec. Position Declination – analogous to latitude – is one component of an object's position.
Constellation One of 88 recognized regions of the celestial sphere in which the object appears.
Distance The physical distance from Earth to the astronomical object. Distances within our solar system are usually measured in Astronomical Units (AU). Distances between stars are usually measured in light-years. Interstellar distances can also be measured in parsecs.
Dimensions The physical size of the object or the apparent angle it subtends on the sky.
About The Data
Data Description
  • Proposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.
  • Science Team: The astronomers who planned the observations and analyzed the data. "PI" refers to the Principal Investigator.
Instrument The science instrument used to produce the data.
Exposure Dates The date(s) that the telescope made its observations and the total exposure time.
Filters The camera filters that were used in the science observations.
About The Image
Image Credit The primary individuals and institutions responsible for the content.
Publication Date The date and time the release content became public.
Color Info A brief description of the methods used to convert telescope data into the color image being presented.
Orientation The rotation of the image on the sky with respect to the north pole of the celestial sphere.