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Geminga underwent a minor glitch in the late part of 1996, with a fractional change in frequency of 6.2 × 10 −10. [17]A 1998 study of the pre-glitch ephemeris suggested that the timings were being affected by reflex motion due to the presence of a low-mass planet in a 5.1-year orbit; [18] however, this was later shown to be an artifact of noise that affects the pulse times from Geminga ...
In a small amateur telescope, its 10th magnitude central star is visible, along with its blue-green elliptical disk. It is said to resemble the head of a person wearing a parka. [8] The Medusa Nebula is another planetary nebula, some 1,500 light-years distant. Geminga is a neutron star approximately 550 light
Geminga: 06 h 33 m 54.15 s ... comments; notable properties [for example: multiple star status, range of variability if it is a variable star, exoplanets, etc.] ...
Theta Geminorum (θ Gem, θ Geminorum) is a single [11] star in the northern zodiac constellation of Gemini. It is visual to the naked eye with an apparent visual magnitude of 3.59. [ 2 ] Based upon an annual parallax shift of 17.25 mas , [ 1 ] it is about 189 light years distant from the Sun .
Mu Geminorum or μ Geminorum, formally named Tejat (/ ˈ t iː dʒ ə t /), [14] is a single star in the northern/tropical constellation of Gemini which can be seen from all but Antarctic latitudes. From parallax measurements obtained during the Hipparcos mission, it is roughly 230 light-years (71 parsecs ) distant from the Sun . [ 1 ]
Neutron stars are stellar remnants produced when a star of around 8–9 solar masses or more explodes in a supernova at the end of its life. They are usually produced by stars of less than 20 solar masses, although a more massive star may produce a neutron star in certain cases. [2] 4U 1820-30: 9.1 Pulsar [3] Lich Pulsar (PSR B1257+12) 10 Pulsar
The high sensitivity of XMM-Newton has also resulted in two major findings on Geminga. The star, as it moves with supersonic speed in the interstellar medium, generates a shock wave that produces a train of X-rays. This allows scientists to probe both the density of the interstellar medium and the energy of the accelerated electrons from the ...
Rho Geminorum (ρ Gem) is a star system that lies 59 light-years away in the constellation of Gemini, about 5 degrees west of Castor.The system consists of a primary bright enough to be seen with the naked eye, a faint secondary which has rarely been observed even professionally, and a distant, somewhat bright tertiary which requires telescopic equipment for observation.