Hubble Investigates an Enigmatic Globular Cluster

Esahubble_potw2223a_1024

esahubble_potw2223a June 6th, 2022

Credit: ESA/Hubble & NASA, A. Dotter

Like Sherlock Holmes’s magnifying glass writ large, the NASA/ESA Hubble Space Telescope has been used to peer into an astronomical mystery in search of clues. The enigma in question concerns the globular cluster Ruprecht 106, which is pictured in this image. While the constituent stars of globular clusters all formed at approximately the same location and time, it turns out that almost all globular clusters contain groups of stars with distinct chemical compositions. These distinct chemical fingerprints are left by groups of stars with very slightly different ages or compositions from the rest of the cluster. A tiny handful of globular clusters do not possess these multiple populations of stars, and Ruprecht 106 is a member of this enigmatic group. Hubble captured this star-studded image using one of its most versatile instruments; the Advanced Camera for Surveys (ACS). Much like the stars in globular clusters, Hubble’s instruments also have distinct generations: ACS is a third generation instrument which replaced the original Faint Object Camera in 2002. Some of Hubble’s other instruments have also gone through three iterations: the Wide Field Camera 3 replaced the Wide Field and Planetary Camera 2 (WFPC2) during the final servicing mission to Hubble. WFPC2 itself replaced the original Wide Field and Planetary Camera, which was installed on Hubble at launch.  Astronauts on the NASA Space Shuttle serviced Hubble in orbit a total of five times, and were able to either upgrade aging equipment or replace instruments with newer, more capable versions. This high-tech tinkering in low Earth orbit has helped keep Hubble at the cutting edge of astronomy for more than 3 decades. Links Video of Hubble Investigates an Enigmatic Globular Cluster

Provider: Hubble Space Telescope | ESA

Image Source: https://esahubble.org/images/potw2223a/

Curator: ESA/Hubble, Baltimore, MD, United States

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Subject - Milky Way
Star > Grouping > Cluster > Globular
Esahubble_potw2223a_128
 

Position Details

Position (ICRS)
RA = 12h 38m 40.0s
DEC = -51° 9’ 0.8”
Orientation
North is 17.2° CW
Field of View
3.5 x 3.2 arcminutes
Constellation
Centaurus

Color Mapping

  Telescope Spectral Band Wavelength
Blue Hubble (ACS) Optical (V) 606.0 nm
Green Hubble (ACS) Optical (V) 606.0 nm
Green Hubble (ACS) Optical (I) 814.0 nm
Red Hubble (ACS) Optical (I) 814.0 nm
Spectrum_base
Blue
Green
Green
Red
Esahubble_potw2223a_1280
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ID
potw2223a
Subject Category
B.3.6.4.2  
Subject Name
Credits
ESA/Hubble & NASA, A. Dotter
Release Date
2022-06-06T06:00:00
Lightyears
Redshift
Reference Url
https://esahubble.org/images/potw2223a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
ACS, ACS, ACS, ACS
Color Assignment
Blue, Green, Green, Red
Band
Optical, Optical, Optical, Optical
Bandpass
V, V, I, I
Central Wavelength
606, 606, 814, 814
Start Time
Integration Time
Dataset ID
None, None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
189.66668648195494, -51.15021656101228
Reference Dimension
4145.0, 3790.0
Reference Pixel
2072.5, 1895.0
Scale
-1.3885629168703278e-05, 1.3885629168703278e-05
Rotation
-17.180000000000003
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
ESA/Hubble
URL
https://esahubble.org
Name
Email
Telephone
Address
ESA Office, Space Telescope Science Institute, 3700 San Martin Dr
City
Baltimore
State/Province
MD
Postal Code
21218
Country
United States
Rights
Creative Commons Attribution 4.0 International License
Publisher
ESA/Hubble
Publisher ID
esahubble
Resource ID
potw2223a
Metadata Date
2022-05-31T15:57:43+02:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

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There is no distance meta data in this image.