M40 (Winnecke 4)

Noirlab_noao-m40_1024

noirlab_noao-m40 June 30th, 2020

Credit: NOIRLab/NSF/AURA

M40 is a faint double star cataloged by Messier while searching for a nebula reported in error by Hevelius. This indicates some of the shortcomings of Messier's work which, while ground breaking and of inestimable value, was somewhat less than systematic. The pair was re-observed in 1863 and entered in the catalog compiled by A. Winnecke of the Pulkovo Observatory. M40 is several hundred light-years away and the two stars are probably close to, or only a few times, solar luminosity. KPNO 0.9-meter CCD image at f13.5, February 1996.

Provider: NOIRLab

Image Source: https://noirlab.edu/public/images/noao-m40/

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
M40 • Winnecke 4
Noirlab_noao-m40_128
 

Position Details Position Details

Position (ICRS)
RA = 12h 22m 10.9s
DEC = 58° 5’ 1.0”
Orientation
North is 1.0° CCW
Field of View
10.3 x 10.3 arcminutes
Constellation
Ursa Major
Noirlab_noao-m40_1280
×
ID
noao-m40
Subject Category
Subject Name
M40, Winnecke 4
Credits
NOIRLab/NSF/AURA
Release Date
2020-06-30T21:34:17
Lightyears
Redshift
Reference Url
https://noirlab.edu/public/images/noao-m40/
Type
Observation
Image Quality
Distance Notes
Facility
Instrument
Color Assignment
Band
Bandpass
Central Wavelength
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
185.545581, 58.08361245
Reference Dimension
1600.0, 1600.0
Reference Pixel
893.1685333, 778.4540291
Scale
-0.000107, 0.000107
Rotation
0.9708767435
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-m40
Resource URL
http://noirlab.edu/public/media/archives/images/original/noao-m40.tif
Related Resources
Metadata Date
2024-10-02T11:52:33.674345
Metadata Version
1.1
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