M45: The Pleiades

Noirlab_noao-m45denton_1024

noirlab_noao-m45denton June 25th, 2014

Credit: KPNO/NOIRLab/NSF/AURA/Tad Denton/Adam Block

This very bright open cluster has a large angular extent, making it a great binocular object. If you viewed this object through a large telescope, you would only see a few stars, not the entire cluster. Perhaps the most famous open cluster, this is easily visible with the naked eye. In fact, many children with great eyesight look toward this cluster and mistake it for the Little Dipper. When you view this cluster through binoculars, it does in fact look like a measuring cup.M45, or the Pleiades, or the Seven Sisters, or Subaru if you're in Japan, are all names for this cluster. In Greek mythology, the Seven Sisters were the daughters of Atlas and Pleione, and the half-sisters of Hyades. It is interesting to note that when counting the brightest stars in this cluster, most people only come up with six. Some versions of the mythology describe a missing sister, the reason why we do not see a seventh bright star is unknown.The bright blue, massive stars that make up this cluster are less than 100 million years old. 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-m45denton/

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

Image Use Policy: Creative Commons Attribution 4.0 International License

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Image Details

Image Type
Observation
Object Name
M45
Noirlab_noao-m45denton_128
 

Position Details

Position (ICRS)
RA = 3h 48m 36.3s
DEC = 23° 55’ 57.0”
Orientation
North is 18.0° CCW
Field of View
2.2 x 1.5 degrees
Constellation
Taurus

Color Mapping

  Telescope Spectral Band Wavelength
Blue KPNO-VC-RORO (Other CCD) Optical (B) 438.0 nm
Green KPNO-VC-RORO (Other CCD) Optical (G) 475.0 nm
Red KPNO-VC-RORO (Other CCD) Optical (R) 625.0 nm
Spectrum_base
Blue
Green
Red
Noirlab_noao-m45denton_1280
×
ID
noao-m45denton
Subject Category
Subject Name
M45
Credits
KPNO/NOIRLab/NSF/AURA/Tad Denton/Adam Block
Release Date
2014-06-25T08:07:07
Lightyears
Redshift
Reference Url
https://noirlab.edu/public/images/noao-m45denton/
Type
Observation
Image Quality
Distance Notes
Facility
Visitor Center Roll Off Roof Observatory, Visitor Center Roll Off Roof Observatory, Visitor Center Roll Off Roof Observatory
Instrument
Other CCD, Other CCD, Other CCD
Color Assignment
Blue, Green, Red
Band
Optical, Optical, Optical
Bandpass
B, G, R
Central Wavelength
438, 475, 625
Start Time
Integration Time
Dataset ID
None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
57.1511747824, 23.9324875625
Reference Dimension
1438.0, 968.0
Reference Pixel
571.047954559, 289.452682495
Scale
-0.00151697882217, 0.00151664990239
Rotation
17.990027545062
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-m45denton
Metadata Date
2021-08-30T19:13:11+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.