Combined observations from NASA’s NIRCam (Near-Infrared Camera) and Hubble’s WFC3 (Wide Field Camera 3) show spiral galaxy NGC 5584, which resides 72 million light-years away from Earth. Among NGC 5584’s glowing stars are pulsating stars called Cepheid variables and Type Ia supernova, a special class of exploding stars. Astronomers use Cepheid variables and Type Ia supernovae as reliable distance markers to measure the universe’s expansion rate.
Credits
Image
NASA, ESA, CSA, Adam G. Riess (JHU, STScI)
Image Processing
Alyssa Pagan (STScI)
| About The Object | |
|---|---|
| Object Name | NGC 5584 |
| Object Description | Spiral galaxy, cepheids host galaxy |
| R.A. Position | 14:22:23.76 |
| Dec. Position | 00:23:15.61 |
| Constellation | Virgo |
| Distance | About 72 million light-years (22 million parsecs) |
| About The Data | |
| Data Description | This image was created with Webb and Hubble data from proposals: and (A. Riess) |
| Instrument | Hubble>WFC3/UVIS Webb>NIRCam |
| Exposure Dates | 2 February 2023, Janurary-April 2011 |
| Filters | Hubble> F555W, F814W Webb> F277W |
| About The Image | |
| Color Info | This image is a composite of separate exposures acquired by the Hubble Space Telescope using the WFC3 instrument and the James Webb Space Telescope using the NIRCam instrument. Several filters were used to sample wide 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: F555W, Green: F814W, Red: F277W |
| 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 |
|
| 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. |
