Comet 3I/ATLAS

Stsci_2025-022a_1024

stsci_2025-022a August 7th, 2025

Credit: Image: NASA, ESA, David Jewitt (UCLA); Image Processing: Joseph DePasquale (STScI)

This is a Hubble Space Telescope image of the interstellar comet 3I/ATLAS. Hubble photographed the comet on July 21, 2025, when the comet was 277 million miles from Earth. Hubble shows that the comet has a teardrop-shaped cocoon of dust coming off its solid, icy nucleus. Because Hubble was tracking the comet moving along a hyperbolic trajectory, the stationary background stars are streaked in the exposure.

Provider: Space Telescope Science Institute

Image Source: https://science.nasa.gov/missions/hubble/as-nasa-missions-study-interstellar-comet-hubble-makes-size-estimate/

Curator: STScI, Baltimore, MD, USA

Image Use Policy: http://stsci.edu/copyright/

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Image Details Image Details

Image Type
Observation
Object Name
Comet 3I/ATLAS
Subject - Solar System
Interplanetary Body > Comet > Nucleus

Distance Details Distance

Universescale1
3 ly
Stsci_2025-022a_128
 

Position Details Position Details

Position (ICRS)
RA = 17h 19m 3.9s
DEC = -18° 6’ 59.8”
Orientation
North is 0.2° CW
Field of View
0.3 x 0.2 arcminutes
Constellation
Ophiuchus

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Pseudocolor Hubble (WFC3/UVIS) Optical 350.0 nm
Spectrum_base
Pseudocolor
Stsci_2025-022a_1280
×
ID
2025-022a
Subject Category
A.2.2.1  
Subject Name
Comet 3I/ATLAS
Credits
Image: NASA, ESA, David Jewitt (UCLA); Image Processing: Joseph DePasquale (STScI)
Type
Observation
Image Quality
Good
Distance Notes
distance in AU
Facility
Hubble
Instrument
WFC3/UVIS
Color Assignment
Pseudocolor
Band
Optical
Bandpass
Central Wavelength
350
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
2000.0
Reference Value
259.76616639466, -18.11660536624
Reference Dimension
1546.00, 1140.00
Reference Pixel
3643.37436167384, 3108.15632900480
Scale
-0.00000274384, 0.00000274384
Rotation
-0.20080303688
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
World Coordinate System resolved using PinpointWCS 0.9.2 revision 218+ by the Chandra X-ray Center
Creator (Curator)
STScI
URL
http://stsci.edu
Name
Space Telescope Science Institute Office of Public Outreach
Email
outreach@stsci.edu
Telephone
410-338-4444
Address
3700 San Martin Drive
City
Baltimore
State/Province
MD
Postal Code
21218
Country
USA
Rights
http://stsci.edu/copyright/
Publisher
STScI
Publisher ID
stsci
Resource ID
STSCI-H-p25022a-f-1546x1140.tif
Metadata Date
2025-10-20T12:17:06-04:00
Metadata Version
1.2
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Detailed color mapping information coming soon...

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Universescalefull
3

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