Geminga [SEP] constellation
Geminga
Geminga is a neutron star approximately 250 parsecs (around 800 light years) from the Sun in the constellation Gemini. Its name, attributed by its discoverer Giovanni Bignami, is both a contraction of Gemini gamma-ray source", and a transcription of the words gh'è minga" (), meaning "it's not there" in the Milanese dialect of Lombard.
Pulsar.
The nature of Geminga was quite unknown for 20 years after its discovery by NASA's Second Small Astronomy Satellite (SAS-2).
as the technique developed for Geminga is applicable to other neutron stars.
Geminga is not the only example of a pulsar without radio emission. The satellite Fermi has discovered dozens of others, demonstrating that the predictions made on the basis of the phenomenology of Geminga were fundamentally correct.
Following the publication of the catalog of gamma sources revealed by Fermi, Caraveo coordinated a program centered on the study of unidentified gamma-ray sources. The purpose of the exercise is to find sources with the highest ratio of X-ray to