Cosmic Treasure Chest

Esahubble_potw2224a_1024

esahubble_potw2224a June 13th, 2022

Credit: ESA/Hubble & NASA, R. Cohen

This star-studded image shows the globular cluster Terzan 9 in the constellation Sagittarius, towards the centre of the Milky Way. The NASA/ESA Hubble Space Telescope captured this glittering scene using its Wide Field Camera 3 and Advanced Camera for Surveys.  Globular clusters are stable, tightly bound groupings of tens of thousands to millions of stars. As this image demonstrates, the hearts of globular clusters can be densely packed with stars; the night sky in this image is strewn with so many stars that it resembles a sea of sequins or a vast treasure chest crammed with gold. This starry snapshot is from a Hubble programme investigating globular clusters located towards the heart of the Milky Way. The central region of our home galaxy contains a tightly packed group of stars known as the Galactic bulge, which is also rich in interstellar dust. This dust has made globular clusters near the Galactic centre difficult to study, as it absorbs starlight and can even change the apparent colours of the stars in these clusters. Hubble's sensitivity at both visible and infrared wavelengths has allowed astronomers to measure how the colours of these globular clusters have been changed by interstellar dust, and thereby to establish their ages. Links Video of A Cosmic Treasure Chest

Provider: Hubble Space Telescope | ESA

Image Source: https://esahubble.org/images/potw2224a/

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

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Subject - General
Star > Grouping > Cluster > Globular
Esahubble_potw2224a_128
 

Position Details

Position (ICRS)
RA = 18h 1m 39.0s
DEC = -26° 50’ 21.5”
Orientation
North is 227.3° CCW
Field of View
2.3 x 2.0 arcminutes
Constellation
Sagittarius

Color Mapping

  Telescope Spectral Band Wavelength
Red Hubble (WFC3) Infrared (H) 1.6 µm
Green Hubble (ACS) Infrared (YJ) 1.1 µm
Blue Hubble (ACS) Optical (V) 606.0 nm
Spectrum_base
Red
Green
Blue
Esahubble_potw2224a_1280
×
ID
potw2224a
Subject Category
E.3.6.4.2  
Subject Name
Credits
ESA/Hubble & NASA, R. Cohen
Release Date
2022-06-13T06:00:00
Lightyears
Redshift
Reference Url
https://esahubble.org/images/potw2224a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
WFC3, ACS, ACS
Color Assignment
Red, Green, Blue
Band
Infrared, Infrared, Optical
Bandpass
H, YJ, V
Central Wavelength
1600, 1100, 606
Start Time
Integration Time
Dataset ID
None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
270.4124178712093, -26.83931742087116
Reference Dimension
2740.0, 2443.0
Reference Pixel
1370.0, 1221.5
Scale
-1.3881928255415726e-05, 1.3881928255415726e-05
Rotation
227.34000000000074
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
potw2224a
Metadata Date
2022-06-02T00:16:28+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.