NGC 457: The "ET" Cluster

Noirlab_noao-n457siark_1024

noirlab_noao-n457siark June 25th, 2014

Credit: KPNO/NOIRLab/NSF/AURA/Ken and Emilie Siarkiewicz/Adam Block

NGC 457 is an open cluster located in the constellation Cassieopeia. It is easily found in small telescopes, and a favorite for amateur astronomers who can imagine the nicknames of Owl Cluster and ET. The two bright stars in the upper left make up the eyes of ET. 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-n457siark/

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 457
Noirlab_noao-n457siark_128
 

Position Details Position Details

Position (ICRS)
RA = 1h 19m 20.9s
DEC = 58° 15’ 16.2”
Orientation
North is 78.8° CW
Field of View
17.8 x 12.0 arcminutes
Constellation
Cassiopeia

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Luminosity KPNO-VC-0.5m (Other CCD) Optical (Broad Band) 555.0 nm
Blue KPNO-VC-0.5m (Other CCD) Optical (B) 438.0 nm
Green KPNO-VC-0.5m (Other CCD) Optical (G) 475.0 nm
Red KPNO-VC-0.5m (Other CCD) Optical (R) 625.0 nm
Spectrum_base
Luminosity
Blue
Green
Red
Noirlab_noao-n457siark_1280
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ID
noao-n457siark
Subject Category
Subject Name
NGC 457
Credits
KPNO/NOIRLab/NSF/AURA/Ken and Emilie Siarkiewicz/Adam Block
Release Date
2014-06-25T12:36:53
Lightyears
Redshift
Reference Url
https://noirlab.edu/public/images/noao-n457siark/
Type
Observation
Image Quality
Distance Notes
Facility
Visitor Center 0.5-meter Telescope, Visitor Center 0.5-meter Telescope, Visitor Center 0.5-meter Telescope, Visitor Center 0.5-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
19.8371652407, 58.2545119225
Reference Dimension
1441.0, 972.0
Reference Pixel
500.606773376, 408.271167755
Scale
-0.000206602702947, 0.000206228480136
Rotation
-78.782202404332
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-n457siark
Metadata Date
2021-08-30T16:39:52+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.

 

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