Stellar Jet in Sh2-284

Stsci_2025-131a_1024

stsci_2025-131a September 10th, 2025

Credit: Image: NASA, ESA, CSA, STScI, Yu Cheng (NAOJ); Image Processing: Joseph DePasquale (STScI)

NASA's James Webb Space Telescope recently imaged an extremely large and symmetric protostellar jet at the outskirts of our Milky Way galaxy in the forming cluster Sh2-284. From tip to tip, this protostellar jet is 8 light-years across, about double the distance from our Sun to its closest neighboring star system, Alpha Centauri.

Its detection provides evidence that protostellar jets scale with the mass of their parent star—the more massive the stellar engine driving the plasma, the larger the resulting jet—and thus for a universal mechanism for star formation from low to high masses.

Provider: Space Telescope Science Institute

Image Source: https://science.nasa.gov/missions/webb/nasas-webb-observes-immense-stellar-jet-on-outskirts-of-our-milky-way/

Curator: STScI, Baltimore, MD, USA

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

Image Details Image Details

Image Type
Observation
Object Name
Sh2-284 p1
Subject - Milky Way
Nebula > Type > Jet

Distance Details Distance

Universescale1
15,000 light years
Stsci_2025-131a_128
 

Position Details Position Details

Position (ICRS)
RA = 6h 46m 16.3s
DEC = 0° 5’ 4.9”
Orientation
North is 10.3° CW
Field of View
1.6 x 1.5 arcminutes
Constellation
Monoceros

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Blue Webb (NIRCam) Infrared 1.6 µm
Blue Webb (NIRCam) Infrared 1.8 µm
Green Webb (NIRCam) Infrared 2.0 µm
Green Webb (NIRCam) Infrared 3.6 µm
Red Webb (NIRCam) Infrared 4.1 µm
Red Webb (NIRCam) Infrared 4.7 µm
Spectrum_base
Blue
Blue
Green
Green
Red
Red
Stsci_2025-131a_1280
×
ID
2025-131a
Subject Category
B.4.1.5  
Subject Name
Sh2-284 p1
Credits
Image: NASA, ESA, CSA, STScI, Yu Cheng (NAOJ); Image Processing: Joseph DePasquale (STScI)
Release Date
2025-09-10
Lightyears
15,000
Redshift
15,000
Reference Url
https://science.nasa.gov/missions/webb/nasas-webb-observes-immense-stellar-jet-on-outskirts-of-our-milky-way/
Type
Observation
Image Quality
Good
Distance Notes
distance in lightyears
Facility
Webb, Webb, Webb, Webb, Webb, Webb
Instrument
NIRCam, NIRCam, NIRCam, NIRCam, NIRCam, NIRCam
Color Assignment
Blue, Blue, Green, Green, Red, Red
Band
Infrared, Infrared, Infrared, Infrared, Infrared, Infrared
Bandpass
Central Wavelength
1620, 1820, 2000, 3560, 4050, 4700
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
2000.0
Reference Value
101.56784253819, 0.08469156299
Reference Dimension
3000.00, 2869.00
Reference Pixel
838.82086551402, -854.42349402305
Scale
-0.00000866131, 0.00000866131
Rotation
-10.25489987981
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://hubblesite.org
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-J-p25131a-f-3000x2869.tif
Metadata Date
2025-10-20T12:13:18-04:00
Metadata Version
1.2
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Detailed color mapping information coming soon...

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Universescalefull
15,000 light years

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