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Geminga

Pulsar · X-ray pulsar in the constellation Gemini

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Geminga
Picture: NASA/CXC/PSU/B. Posselt et al; Infrared: NASA/JPL-Caltech, Public domain, via Wikimedia Commons.

About Geminga

Geminga is about 620 light-years from the Sun, so the light we see from it left about 620 years ago.

It is 27,593 light-years from the centre of the Milky Way.

The map lists it as a pulsar and shows it among the stars around the Sun, drawn on the plane of the Milky Way.

Key numbers

Distance620 light-years (190 pc)
Distance from the Galactic centre27,593 light-years
Galactic coordinatesl = 195.13°, b = +4.27°
Spin period237 ms
Distance methodindependent (parallax or association)

Data: ATNF Pulsar Catalogue v2.9.0.

Where it is

Its place in the universe, from the inside out: Orion–Cygnus Arm (Local Arm) › Milky Way › Local Group › Virgo Supercluster › Laniakea Supercluster › Observable universe.

Zoom out to see it in context: 1,000 light-years, a view about 2,400 light-years across.

From Wikipedia

Geminga is a gamma ray and x-ray pulsar source thought to be a neutron star approximately 250 parsecs from the Sun in the constellation Gemini.

Excerpt from the Wikipedia article Geminga, licensed CC BY-SA 4.0.

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