Delving into an Astronomical Treasure Trove

Esahubble_potw2226a_1024

esahubble_potw2226a June 27th, 2022

Credit:  ESA/Hubble & NASA, R. Cohen

This image from the NASA/ESA Hubble Space Telescope captures the sparkling globular cluster NGC 6569 in the constellation Sagittarius. Hubble explored the heart of this cluster with both its Wide Field Camera 3 and Advanced Camera for Surveys, revealing a glittering hoard of stars in this astronomical treasure trove.  Globular clusters are stable, tightly bound clusters containing tens of thousands to millions of stars, and are associated with all types of galaxies. The intense gravitational attraction of these closely packed clusters of stars means that globular clusters have a regular spherical shape with a densely populated centre — as can be seen in the heart of this star-studded image. This observation comes from an investigation of globular clusters which lie close to the centre of the Milky Way. These objects have been avoided in previous surveys, as the dust spread throughout  the centre of our galaxy blocks light from these globular clusters and alters the colours of the stars residing in them. The last factor is particularly important for astronomers studying stellar evolution, as the colours of stars can give astronomers insights into their ages, compositions, and temperatures.  The astronomers who proposed these observations combined data from Hubble with data from astronomical archives, allowing them to measure the ages of globular clusters including NGC 6569. Their research also provided insights into the structure and density of globular clusters towards the centre of the Milky Way. Links Video of A Delving into an Astronomical Treasure Trove

Provider: Hubble Space Telescope | ESA

Image Source: https://esahubble.org/images/potw2226a/

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

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
NGC 6569
Esahubble_potw2226a_128
 

Position Details

Position (ICRS)
RA = 18h 13m 38.3s
DEC = -31° 49’ 37.5”
Orientation
North is 39.6° CCW
Field of View
2.4 x 2.1 arcminutes
Constellation
Sagittarius

Color Mapping

  Telescope Spectral Band Wavelength
Red Hubble (WFC3) Infrared (H) 1.6 µm
Green Hubble (WFC3) Infrared (YJ) 1.1 µm
Blue Hubble (ACS) Optical (V) 606.0 nm
Spectrum_base
Red
Green
Blue
Esahubble_potw2226a_1280
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ID
potw2226a
Subject Category
Subject Name
NGC 6569
Credits
 ESA/Hubble & NASA, R. Cohen
Release Date
2022-06-27T06:00:00
Lightyears
Redshift
Reference Url
https://esahubble.org/images/potw2226a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
WFC3, WFC3, 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
273.40977598466105, -31.827085375240767
Reference Dimension
2901.0, 2527.0
Reference Pixel
1450.5, 1263.5
Scale
-1.389806271357323e-05, 1.389806271357323e-05
Rotation
39.62000000000031
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
potw2226a
Metadata Date
2022-06-15T01:28:20+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.