Comparing Sky Surveys over Time

noirlab_noirlab2521bz June 23rd, 2025

Credit: DESI Legacy Imaging Surveys/LBNL/DOE & KPNO/CTIO/NOIRLab/NSF/AURAImage processing: T.A. Rector (University of Alaska Anchorage/NSF NOIRLab), D. de Martin (NSF NOIRLab) & M. Zamani (NSF NOIRLab)

This image by the Digitized Sky Survey II in 1994 shows RSCG 55, a captivating spectacle of gravitationally intertwined galaxies in the constellation Virgo.

Provider: NOIRLab

Image Source: https://noirlab.edu/public/images/noirlab2521bz/

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

Image Use Policy: Creative Commons Attribution 4.0 International License

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Full Size Image (3473 x 1953)
Source TIFF (38.8 MB)

Image Details

Image Type: Observation
Object Name: NGC 4410 • RSCG 55

Position Details

Position (ICRS): RA = 12h 26m 31.9s; DEC = 9° 0’ 55.3”
Orientation: North is up
Field of View: 15.2 x 8.5 arcminutes
Constellation: Virgo

Color Mapping

Telescope	Spectral Band	Wavelength
Blanco-4m (DECam)	Optical (z)	926.0 nm
Blanco-4m (DECam)	Optical (i)	784.0 nm
Blanco-4m (DECam)	Optical (r)	642.0 nm
Blanco-4m (DECam)	Optical (g)	473.0 nm

ID: noirlab2521bz
Subject Category
Subject Name: NGC 4410, RSCG 55
Credits: DESI Legacy Imaging Surveys/LBNL/DOE & KPNO/CTIO/NOIRLab/NSF/AURAImage processing: T.A. Rector (University of Alaska Anchorage/NSF NOIRLab), D. de Martin (NSF NOIRLab) & M. Zamani (NSF NOIRLab)

Release Date: 2025-06-23T08:20:00
Lightyears
Redshift
Reference Url: https://noirlab.edu/public/images/noirlab2521bz/

Type: Observation
Image Quality
Distance Notes

Facility: Víctor M. Blanco 4-meter Telescope, Víctor M. Blanco 4-meter Telescope, Víctor M. Blanco 4-meter Telescope, Víctor M. Blanco 4-meter Telescope
Instrument: DECam, DECam, DECam, DECam
Color Assignment: Red, Orange, Green, Blue

Band: Optical, Optical, Optical, Optical
Bandpass: z, i, r, g
Central Wavelength: 926, 784, 642, 473

Start Time
Integration Time
Dataset ID: None, None, None, None
Notes

Coordinate Frame: ICRS
Equinox: J2000
Reference Value: 186.63279809500227, 9.015359842071776
Reference Dimension: 3473.0, 1953.0

Reference Pixel: 1736.5, 976.5
Scale: -7.274414603936877e-05, 7.274414603936877e-05
Rotation: -0.040000000000000133
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: noirlab2521bz

Resource URL: https://storage.noirlab.edu/media/archives/images/original/noirlab2521bz.tif
Related Resources

Metadata Date: 2026-07-03T19:06:22+02:00
Metadata Version: 1.1

Detailed color mapping information coming soon...

There is no distance meta data in this image.