Grand designs

Eso_potw2123a_1024

eso_potw2123a June 7th, 2021

Credit: ESO

This ESO Picture of the Week features a galaxy named both NGC 4254 and Messier 99, a beautiful cosmic spectacle located in the constellation of Coma Berenices (Berenices Hair). Messier 99 is special, owing to its classification as a grand design spiral galaxy: a kind of galactic architecture featuring strong, prominent, well-defined arms that wrap clearly around the galaxys centre. Only around 10 percent of all spirals are of the grand design variety, making objects like Messier 99 somewhat uncommon. The justification behind Messier 99s categorisation is clear in this image; bright, swirling arms carve through the dark surrounding space, and are easily identifiable as a number of different, coherent structures. This image was created as part of the ESO Cosmic Gems programme, an outreach initiative to produce images of interesting, intriguing or visually attractive objects using ESO telescopes, for the purposes of education and public outreach. The programme makes use of telescope time that cannot be used for science observations. All data collected may also be suitable for scientific purposes, and are made available to astronomers through ESOs science archive.

Provider: European Southern Observatory

Image Source: https://www.eso.org/public/images/potw2123a/

Curator: European Southern Observatory, Garching bei München, None, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
NGC 4254
Subject - Local Universe
Galaxy > Type > Spiral
Eso_potw2123a_128
 

Position Details

Position (ICRS)
RA = 12h 18m 48.5s
DEC = 14° 25’ 4.9”
Orientation
North is up
Field of View
7.0 x 7.0 arcminutes
Constellation
Coma Berenices

Color Mapping

  Telescope Spectral Band Wavelength
Blue VLT (FORS2) Optical (B) 440.0 nm
Green VLT (FORS2) Optical (V) 557.0 nm
Orange VLT (FORS2) Optical (R) 655.0 nm
Red VLT (FORS2) Optical (H-alpha) 660.0 nm
Spectrum_base
Blue
Green
Orange
Red
Eso_potw2123a_1280
×
ID
potw2123a
Subject Category
C.5.1.1  
Subject Name
NGC 4254
Credits
ESO
Release Date
2021-06-07T06:00:00
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/potw2123a/
Type
Observation
Image Quality
Distance Notes
Facility
Very Large Telescope, Very Large Telescope, Very Large Telescope, Very Large Telescope
Instrument
FORS2, FORS2, FORS2, FORS2
Color Assignment
Blue, Green, Orange, Red
Band
Optical, Optical, Optical, Optical
Bandpass
B, V, R, H-alpha
Central Wavelength
440, 557, 655, 660
Start Time
Integration Time
Dataset ID
None, None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
184.702098364, 14.4180305588
Reference Dimension
1660.0, 1659.0
Reference Pixel
830.0, 829.5
Scale
-7.0045243984e-05, 7.0045243984e-05
Rotation
-0.02
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
European Southern Observatory
URL
https://www.eso.org
Name
Email
Telephone
Address
Karl-Schwarzschild-Strasse 2
City
Garching bei München
State/Province
None
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
European Southern Observatory
Publisher ID
eso
Resource ID
potw2123a
Metadata Date
2021-01-15T10:04:59+01:00
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.