A frEGGS-plosion of Star Formation

Esahubble_potw2041a_1024

esahubble_potw2041a October 12th, 2020

Credit: ESA/Hubble & NASA, R. Sahai

This image, taken with the NASA/ESA Hubble Space Telescope, depicts a special class of star-forming nursery known as Free-floating Evaporating Gaseous Globules, or frEGGs for short. This object is formally known as J025157.5+600606. When a massive new star starts to shine while still within the cool molecular cloud from which it formed, its energetic radiation can ionise the clouds hydrogen and create a large, hot bubble of ionised gas. Amazingly, located within this bubble of hot gas around a nearby massive star are the frEGGs: dark compact globules of dust and gas, some of which are giving birth to low-mass stars. The boundary between the cool, dusty frEGG and the hot gas bubble is seen as the glowing purple/blue edges in this fascinating image. In July 2020 a previous ESA/Hubble Picture of the Week, of J025027.7+600849, featured another frEEG.

Provider: Hubble Space Telescope | ESA

Image Source: https://www.spacetelescope.org/images/potw2041a/

Curator: ESA/Hubble, Garching bei München, None, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
J025157.5+600606
Subject - Milky Way
Nebula > Type > Star Formation
Esahubble_potw2041a_128
 

Position Details

Position (ICRS)
RA = 2h 51m 55.7s
DEC = 60° 5’ 59.6”
Orientation
North is 26.6° CCW
Field of View
3.3 x 3.3 arcminutes
Constellation
Cassiopeia

Color Mapping

  Telescope Spectral Band Wavelength
Purple Hubble (ACS) Optical (V) 606.0 nm
Green Hubble (ACS) Optical (I) 814.0 nm
Green Hubble (ACS) Optical (V) 606.0 nm
Red Hubble (ACS) Optical (I) 814.0 nm
Orange Hubble (ACS) Optical (N II) 658.0 nm
Spectrum_base
Purple
Green
Green
Red
Orange
Esahubble_potw2041a_1280
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ID
potw2041a
Subject Category
B.4.1.2  
Subject Name
J025157.5+600606
Credits
ESA/Hubble & NASA, R. Sahai
Release Date
2020-10-12T06:00:00
Lightyears
Redshift
Reference Url
https://www.spacetelescope.org/images/potw2041a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
ACS, ACS, ACS, ACS, ACS
Color Assignment
Purple, Green, Green, Red, Orange
Band
Optical, Optical, Optical, Optical, Optical
Bandpass
V, I, V, I, N II
Central Wavelength
606, 814, 606, 814, 658
Start Time
Integration Time
Dataset ID
None, None, None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
42.9818898586, 60.0998769401
Reference Dimension
3994.0, 3916.0
Reference Pixel
1997.0, 1958.0
Scale
-1.38911032606e-05, 1.38911032606e-05
Rotation
26.559999999999953
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
ESA/Hubble
URL
http://www.spacetelescope.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
ESA/Hubble
Publisher ID
esahubble
Resource ID
potw2041a
Metadata Date
2020-05-29T07:54:02+02:00
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.