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:
- Hubble and HAWK-I explore a cluster with the mass of two quadrillion Suns
- Comparison image: Hubble and HAWK-I 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: | Galaxies |
Image Formats
Large JPEG
4.7 MB
Publication TIFF 4K
35.0 MB
Publication JPEG
4.5 MB
Screensize JPEG
163.2 KB
Wallpapers
1024x768
161.5 KB
1280x1024
262.6 KB
1600x1200
400.3 KB
1920x1200
509.7 KB
2048x1536
712.7 KB
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 |
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 (VLT)
HAWK-I |