The nearest to earth is over 9000 miles away.
The crab pulsar is a neutron star, it does not have an atmosphere as far as we know.
Doubtful. The nearest pulsar to us is Geminga at over 815 light years or PSR J0437-4715 at 510 light years.
The closest known pulsar to Earth is "PSR J0108-1431". It lies in the direction of the constellation Cetus, at a distance of about 85 parsecs (or 280 light years).
A pulsar is nothing more than a neutron star but with a pole pointing towards Earth. See related questions.
The nearest to earth is over 9000 miles away.
The crab pulsar is a neutron star, it does not have an atmosphere as far as we know.
As far as light can travel
12 miles
That would be called a "pulsar". See related question
Doubtful. The nearest pulsar to us is Geminga at over 815 light years or PSR J0437-4715 at 510 light years.
The closest known pulsar to Earth is "PSR J0108-1431". It lies in the direction of the constellation Cetus, at a distance of about 85 parsecs (or 280 light years).
If you are referring to Gamma Velorum (and a bunch of other variants), it is a binary star system (pulsar) about 800 light years away.
A pulsar.
4.2 light years away
A Pulsar is a highly magnetized, rotating neutron star that emit a beam of electromagnetic radiation.This can only be seen if the "beam" is pointing towards Earth.
Because a pulsar is a neutron star but with it's emmision lines visible from Earth. See related questions.