Galaxy Cluster RCS2 J2327
This image shows the galaxy cluster RCS2 J2327. The mass of the cluster causes both strong and weak gravitational lensing, which can be used to calculate the mass of the cluster. This image is a composite of observations from the HAWK-I instrument on ESO’s Very Large Telescope and the NASA/ESA Hubble Space Telescope’s Advanced Camera for Surveys. It demonstrates an impressively detailed collaborative approach to studying weak lensing in the cosmos.
Links:
- HAWK-I and Hubble Explore a Cluster with the Mass of two Quadrillion Suns
- Comparison image: HAWK-I and Hubble Explore a Cluster with the Mass of two Quadrillion Suns
ESO & ESA/Hubble & NASA
About the Image
| Id: | potw1752b |
| Type: | Observation |
| Release date: | 25 December 2017, 06:00 |
| Size: | 4036 x 4013 px |
About the Object
| Name: | RCS2 J2327 |
| Type: | Early Universe : Galaxy : Grouping : Cluster |
| Constellation: | Pisces |
| Category: | Galaxy Clusters |
Image Formats
Wallpapers
Coordinates
| Position (RA): | 23 27 27.74 |
| Position (Dec): | -2° 4' 27.04" |
| Field of view: | 3.37 x 3.35 arcminutes |
| Orientation: | North is 47.0° right of vertical |
View in WorldWide Telescope:
Colours & filters
| Band | Wavelength | Telescope |
|---|---|---|
| Optical B | 435 nm | Hubble Space Telescope ACS |
| Optical I | 814 nm | Hubble Space Telescope ACS |
| Infrared Ks | 2.146 μm | Very Large Telescope HAWK-I |