HIP 67522 b: The Youngest Known Hot Jupiter

Spitzer_ssc2020-12a_1024

spitzer_ssc2020-12a June 22nd, 2020

Credit: NASA/JPL-Caltech/R. Hurt (IPAC)

This artwork illustrates the newly-discovered the exoplanet HIP 67522 b, which appears to be the youngest hot Jupiter ever found. It orbits a well-studied star that is about 17 million years old, meaning the hot Jupiter is likely only a few million years younger, whereas most known hot Jupiters are more than a billion years old. The planet takes about seven days to orbit its star, which has a mass similar to the Sun's. Located only about 490 light-years from Earth, HIP 67522 b is about 10 times the diameter of Earth, or close to that of Jupiter. Its size strongly indicates that it is a gas-dominated planet.

HIP 67522 b was identified as a planet candidate by NASA's Transiting Exoplanet Survey Satllite (TESS), which detects planets via the transit method: Scientists look for small dips in the brightness of a star, indicating that an orbiting planet has passed between the observer and the star. But young stars tend to have a lot of dark splotches on their surfaces - starspots, also called sunspots when they appear on the Sun - that can look similar to transiting planets. So scientists used data from NASA's recently retired infrared observatory, the Spitzer Space Telescope, to confirm that the transit signal was from a planet and not a starspot. (Other methods of exoplanet detection have yielded hints at the presence of even younger hot Jupiters, but none have been confirmed.)

Provider: Spitzer Space Telescope

Image Source: http://www.spitzer.caltech.edu/images/6809-ssc2020-12a-HIP-67522-b-The-Youngest-Known-Hot-Jupiter

Curator: Spitzer Space Telescope, Pasadena, CA, USA

Image Use Policy: http://www.spitzer.caltech.edu/info/18-Image-Use-Policy

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Image Details

Image Type
Artwork
Object Name
HIP 67522 b
Subject - Milky Way
Planet > Type > Gas Giant

Distance

Universescale1
490 light years
Spitzer_ssc2020-12a_1280
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ID
ssc2020-12a
Subject Category
B.1.1.2  
Subject Name
HIP 67522 b
Credits
NASA/JPL-Caltech/R. Hurt (IPAC)
Release Date
2020-06-22
Lightyears
490
Redshift
490
Reference Url
http://www.spitzer.caltech.edu/images/6809-ssc2020-12a-HIP-67522-b-The-Youngest-Known-Hot-Jupiter
Type
Artwork
Image Quality
Good
Distance Notes
Facility
Instrument
Color Assignment
Band
Bandpass
Central Wavelength
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
Equinox
Reference Value
Reference Dimension
Reference Pixel
Scale
Rotation
Coordinate System Projection:
Quality
FITS Header
Notes
Creator (Curator)
Spitzer Space Telescope
URL
http://www.spitzer.caltech.edu
Name
Email
Telephone
Address
1200 E. California Blvd.
City
Pasadena
State/Province
CA
Postal Code
91125
Country
USA
Rights
http://www.spitzer.caltech.edu/info/18-Image-Use-Policy
Publisher
Spitzer Science Center
Publisher ID
spitzer
Resource ID
YoungestHotJupiterStill.tif
Metadata Date
2020-08-03
Metadata Version
1.2
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Detailed color mapping information coming soon...

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Universescalefull
490 light years