Colours of the Lost Galaxy

Esahubble_potw2103a_1024

esahubble_potw2103a January 18th, 2021

Credit: ESA/Hubble & NASA, J. Lee and the PHANGS-HST Team

Located in the constellation of Virgo (The Virgin), around 50 million light-years from Earth, NGC 4535 is truly a stunning sight to behold. Despite the incredible quality of this image, taken from the NASA/ESA Hubble Space Telescope, NGC 4535 has a hazy, somewhat ghostly, appearance when viewed from a smaller telescope. This led amateur astronomer Leland S. Copeland to nickname NGC 4535 the Lost Galaxy in the 1950s. The bright colours in this image arent just beautiful to look at, as they actually tell us about the population of stars within this barred spiral galaxy. The bright blue-ish colours, seen nestled amongst NGC 4535s long, spiral arms, indicate the presence of a greater number of younger and hotter stars. In contrast, the yellower tones of this galaxys bulge suggest that this central area is home to stars which are older and cooler. This galaxy was studied as part of the PHANGS survey, which aims to clarify many of the links between cold gas clouds, star formation, and the overall shape and other properties of galaxies. On 11 January 2021 the first release of the PHANGS-HST Collection was made publicly available.

Provider: Hubble Space Telescope | ESA

Image Source: https://esahubble.org/images/potw2103a/

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
NGC 4535
Subject - Local Universe
Galaxy > Type > Spiral
Esahubble_potw2103a_128
 

Position Details

Position (ICRS)
RA = 12h 34m 20.2s
DEC = 8° 12’ 4.8”
Orientation
North is 195.7° CCW
Field of View
2.6 x 2.7 arcminutes
Constellation
Virgo

Color Mapping

  Telescope Spectral Band Wavelength
Magenta Hubble (WFC3) Ultraviolet (UV) 275.0 nm
Purple Hubble (WFC3) Optical (U) 336.0 nm
Blue Hubble (WFC3) Optical (B) 438.0 nm
Green Hubble (WFC3) Optical (V) 555.0 nm
Red Hubble (WFC3) Optical (I) 814.0 nm
Spectrum_base
Magenta
Purple
Blue
Green
Red
Esahubble_potw2103a_1280
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ID
potw2103a
Subject Category
C.5.1.1  
Subject Name
NGC 4535
Credits
ESA/Hubble & NASA, J. Lee and the PHANGS-HST Team
Release Date
2021-01-18T06:00:00
Lightyears
Redshift
Reference Url
https://esahubble.org/images/potw2103a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
WFC3, WFC3, WFC3, WFC3, WFC3
Color Assignment
Magenta, Purple, Blue, Green, Red
Band
Ultraviolet, Optical, Optical, Optical, Optical
Bandpass
UV, U, B, V, I
Central Wavelength
275, 336, 438, 555, 814
Start Time
Integration Time
Dataset ID
None, None, None, None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
188.584054924, 8.20132348874
Reference Dimension
3982.0, 4072.0
Reference Pixel
1991.0, 2036.0
Scale
-1.10628295667e-05, 1.10628295667e-05
Rotation
195.71999999999926
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
potw2103a
Metadata Date
2020-12-29T18:08:51+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.