NGC 488

Noirlab_noao-n488kriz_1024

noirlab_noao-n488kriz February 25th, 2014

Credit: KPNO/NOIRLab/NSF/AURA/Tony Kriz/Adam Block

At an estimated distance of 90 million light years away NGC 488 is an intriguing galaxy despite its distance from us. This galaxy displays subtle and tightly wound blue spiral arms with a yellowish core. Astronomers that have recently observed this galaxy note that the stars in the disk are orbiting the galaxy at a break-neck speed of 360km/s. If this number seems large to you- bear in mind you are orbiting the center of the Milky Way at 220 km/s. By studying the velocity distribution of stars in a galaxy like this astronomers attempt to answer fundamental questions concerning the structure of spiral galaxies. For example, observations of this galaxy confirm that it is the process of star formation (molecular clouds) and not the kinematic motions of stars that determine the spiral appearance of spiral galaxies. Other galaxies similar to NGC 488 include NGC 2841 and NGC 7217. This image was taken as part of Advanced Observing Program (AOP) program at Kitt Peak Visitor Center during 2014.

Provider: NOIRLab

Image Source: https://noirlab.edu/public/images/noao-n488kriz/

Curator: NSF's NOIRLab, Tucson, AZ, USA

Image Use Policy: Creative Commons Attribution 4.0 International License

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Image Details Image Details

Image Type
Observation
Object Name
NGC 4889
Noirlab_noao-n488kriz_128
 

Position Details Position Details

Position (ICRS)
RA = 1h 21m 37.3s
DEC = 5° 14’ 59.1”
Orientation
North is 86.9° CW
Field of View
14.3 x 9.6 arcminutes
Constellation
Pisces

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Luminosity Visitor Center 0.4-meter Telescope (Other CCD) Optical (Broad Band) 555.0 nm
Blue Visitor Center 0.4-meter Telescope (Other CCD) Optical (B) 438.0 nm
Green Visitor Center 0.4-meter Telescope (Other CCD) Optical (G) 475.0 nm
Red Visitor Center 0.4-meter Telescope (Other CCD) Optical (R) 625.0 nm
Spectrum_base
Luminosity
Blue
Green
Red
Noirlab_noao-n488kriz_1280
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ID
noao-n488kriz
Subject Category
Subject Name
NGC 4889
Credits
KPNO/NOIRLab/NSF/AURA/Tony Kriz/Adam Block
Release Date
2014-02-25T12:29:31
Lightyears
Redshift
Reference Url
https://noirlab.edu/public/images/noao-n488kriz/
Type
Observation
Image Quality
Distance Notes
Facility
Visitor Center 0.4-meter Telescope, Visitor Center 0.4-meter Telescope, Visitor Center 0.4-meter Telescope, Visitor Center 0.4-meter Telescope
Instrument
Other CCD, Other CCD, Other CCD, Other CCD
Color Assignment
Luminosity, Blue, Green, Red
Band
Optical, Optical, Optical, Optical
Bandpass
Broad Band, B, G, R
Central Wavelength
555, 438, 475, 625
Start Time
Integration Time
Dataset ID
None, None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
20.4055063182, 5.24974721257
Reference Dimension
1200.0, 809.0
Reference Pixel
552.175231934, 224.481063843
Scale
-0.00019854182036, 0.000198342090092
Rotation
-86.898549232907
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
NSF's NOIRLab
URL
https://noirlab.edu
Name
Email
Telephone
Address
950 North Cherry Ave.
City
Tucson
State/Province
AZ
Postal Code
85719
Country
USA
Rights
Creative Commons Attribution 4.0 International License
Publisher
NSF's NOIRLab
Publisher ID
noirlab
Resource ID
noao-n488kriz
Metadata Date
2021-09-15T16:08:40-05:00
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.

 

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