Youthful NGC 362

Esahubble_potw1643a_1024

esahubble_potw1643a October 24th, 2016

Credit: ESA/Hubble & NASA

Globular clusters offer some of the most spectacular sights in the night sky. These ornate spheres contain hundreds of thousands of stars, and reside in the outskirts of galaxies. The Milky Way contains over 150 such clusters and the one shown in this NASA/ESA Hubble Space Telescope image, named NGC 362, is one of the more unusual ones. As stars make their way through life they fuse elements together in their cores, creating heavier and heavier elements known in astronomy as metals in the process. When these stars die, they flood their surroundings with the material they have formed during their lifetimes, enriching the interstellar medium with metals. Stars that form later therefore contain higher proportions of metals than their older relatives. By studying the different elements present within individual stars in NGC 362, astronomers discovered that the cluster boasts a surprisingly high metal content, indicating that it is younger than expected. Although most globular clusters are much older than the majority of stars in their host galaxy, NGC 362 bucks the trend, with an age lying between 10 and 11 billion years old. For reference, the age of the Milky Way is estimated to be above 13 billion years. This image, in which you can view NGC 362s individual stars, was taken by Hubbles Advanced Camera for Surveys (ACS).

Image Source: https://www.spacetelescope.org/images/potw1643a/

Curator: ESA/Hubble, Garching bei München, None, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
NGC 362
Subject - Milky Way
Star > Grouping > Cluster > Globular
Esahubble_potw1643a_128
 

Position Details

Position (ICRS)
RA = 1h 3m 14.6s
DEC = -70° 50’ 58.2”
Orientation
North is 200.0° CW
Field of View
2.6 x 2.7 arcminutes
Constellation
Tucana

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_blue Hubble Space Telescope (ACS) Optical (B) 435.0 nm
Arrow_left_green Hubble Space Telescope (ACS) Optical (R) 625.0 nm
Arrow_left_red Hubble Space Telescope (ACS) Optical (H-alpha) 658.0 nm
Spectrum_base
Arrow_top_blue
Arrow_top_green
Arrow_top_red
Esahubble_potw1643a_1280
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ID
potw1643a
Subject Category
B.3.6.4.2  
Subject Name
NGC 362
Credits
ESA/Hubble & NASA
Release Date
2016-10-24T06:00:00
Lightyears
Redshift
Reference Url
https://www.spacetelescope.org/images/potw1643a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
ACS, ACS, ACS
Color Assignment
Blue, Green, Red
Band
Optical, Optical, Optical
Bandpass
B, R, H-alpha
Central Wavelength
435, 625, 658
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
15.81096794, -70.8495007953
Reference Dimension
3981.0, 4017.0
Reference Pixel
1990.5, 2008.5
Scale
-1.10107190837e-05, 1.10107190837e-05
Rotation
-199.98000000000025
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
ESA/Hubble
URL
http://www.spacetelescope.org
Name
Email
Telephone
Address
Karl-Schwarzschild-Strasse 2
City
Garching bei München
State/Province
None
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
ESA/Hubble
Publisher ID
esahubble
Resource ID
potw1643a
Metadata Date
2016-07-08T14:42:09+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.