Star Cluster AP94

Stsci_2015-18e_1024

stsci_2015-18e September 3rd, 2015

Credit: NASA, ESA, J. Dalcanton, B.F. Wi

This is a Hubble Space Telescope mosaic of 414 photographs of the nearest major galaxy to our Milky Way galaxy, the Andromeda galaxy (M31). The vast panorama was assembled from nearly 8,000 separate exposures taken in near-ultraviolet, visible, and near-infrared light. Embedded within this view are 2,753 star clusters. The view is 61,600 light-years across and contains images of 117 million stars in the galaxy's disk An enlargement of the boxed field in the top image reveals myriad stars and numerous open star clusters as bright blue knots. Hubble's bird's-eye view of M31 allowed astronomers to conduct a larger-than-ever sampling of star clusters that are all at the same distance from Earth, 2.5 million light-years. The view is 4,400 light-years across. This is a view of six bright blue clusters extracted from the field. Hubble astronomers discovered that, for whatever reason, nature apparently cooks up stars with a consistent distribution from massive stars to small stars (blue supergiants to red dwarfs). This remains a constant across the galaxy, despite the fact that the clusters vary in mass by a factor of 10 and range in age from 4 million to 24 million years old. Each cluster square is 150 light-years across.

Provider: Space Telescope Science Institute

Image Source: https://hubblesite.org/contents/news-releases/2015/news-2015-18

Curator: STScI, Baltimore, MD, USA

Image Use Policy: http://hubblesite.org/copyright/

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Image Details Image Details

Image Type
Planetary
Object Name
M31 Andromeda Galaxy AP94
Subject - Local Universe
Galaxy > Type > Spiral
Star > Grouping > Cluster > Globular

Position Details Position Details

Position (ICRS)
RA = 0h 2m 50.9s
DEC = 41° 16’ 9.0”
Constellation
Andromeda

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Blue Hubble (WFC3/UVIS) Optical (U) 336.0 nm
Green Hubble (ACS/WFC) Optical (g) 475.0 nm
Yellow Hubble (ACS/WFC) Optical (I) 814.0 nm
Red Hubble (WFC3/UVIS) Infrared (H) 1.6 µm
Spectrum_base
Blue
Green
Yellow
Red
Stsci_2015-18e_1280
×
ID
2015-18e
Subject Category
C.5.1.1   C.3.6.4.2  
Subject Name
M31, Andromeda Galaxy, AP94
Credits
NASA, ESA, J. Dalcanton, B.F. Wi
Release Date
2015-09-03T00:00:00+00:00
Lightyears
Redshift
Reference Url
https://hubblesite.org/contents/news-releases/2015/news-2015-18
Type
Planetary
Image Quality
Good
Distance Notes
Facility
Hubble, Hubble, Hubble, Hubble
Instrument
WFC3/UVIS, ACS/WFC, ACS/WFC, WFC3/UVIS
Color Assignment
Blue, Green, Yellow, Red
Band
Optical, Optical, Optical, Infrared
Bandpass
U, g, I, H
Central Wavelength
336, 475, 814, 1600
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
Reference Value
0.7122222, 41.2691667
Reference Dimension
Reference Pixel
Scale
Rotation
Coordinate System Projection:
Quality
Position
FITS Header
Notes
Creator (Curator)
STScI
URL
http://hubblesite.org
Name
Space Telescope Science Institute Office of Public Outreach
Email
outreach@stsci.edu
Telephone
410-338-4444
Address
3700 San Martin Drive
City
Baltimore
State/Province
MD
Postal Code
21218
Country
USA
Rights
http://hubblesite.org/copyright/
Publisher
STScI
Publisher ID
stsci
Resource ID
STSCI-H-p1518e-f-1000x1000.tif
Metadata Date
2022-07-06T00:00:00
Metadata Version
1.2
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Detailed color mapping information coming soon...

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