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  2. Gemini (constellation) - Wikipedia

    en.wikipedia.org/wiki/Gemini_(constellation)

    Gemini is one of the constellations of the zodiac and is located in the northern celestial hemisphere. It was one of the 48 constellations described by the 2nd century AD astronomer Ptolemy , and it remains one of the 88 modern constellations today.

  3. Kappa Geminorum - Wikipedia

    en.wikipedia.org/wiki/Kappa_Geminorum

    Kappa Geminorum (κ Geminorum, κ Gem) is a binary star system in the northern zodiac constellation of Gemini. It is visible to the naked eye with an apparent visual magnitude of 3.568. [2] Based upon an annual parallax shift of 23.07 mas, [1] the system is located about 141 light years distant from the Sun.

  4. 74 Geminorum - Wikipedia

    en.wikipedia.org/wiki/74_Geminorum

    74 Geminorum (f Geminorum) is a K-type giant star in the constellation Gemini. It is located about 640 light-years from Earth based on its Gaia DR3 parallax. The star is often subject to lunar occultations, allowing an accurate measurement of its angular diameter. [1] It has an apparent magnitude of 5.05, making it faintly visible to the naked ...

  5. Rho Geminorum - Wikipedia

    en.wikipedia.org/wiki/Rho_Geminorum

    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.

  6. NGC 2355 - Wikipedia

    en.wikipedia.org/wiki/NGC_2355

    NGC 2355 also known as NGC 2356, [3] is an old open cluster in the constellation Gemini. It is approximately a billion years old and is located about 5,400 light years (ly) from the Solar System and 1,100 ly above the plane of the Milky Way galaxy. At that distance, the angular size of the cluster halo corresponds to a radius of about 23 ly.

  7. NGC 2158 - Wikipedia

    en.wikipedia.org/wiki/NGC_2158

    NGC 2158 is an open cluster in the constellation of Gemini. It is, in angle, immediately southwest of open cluster Messier 35 , and is believed to be about 2 billion years old. [ 2 ] The two clusters are unrelated, as the subject is around 9,000 light years further away.

  8. NGC 2129 - Wikipedia

    en.wikipedia.org/wiki/NGC_2129

    NGC 2129 is an open cluster in the constellation Gemini. It has an angular distance of 2.5 arcminutes and is approximately 2.2 ± 0.2 kpc (~7,200 light years) from the Sun inside the Local spiral arm. [3] At that distance, the angular size of the cluster corresponds to a diameter of about 10.4 light years.

  9. NGC 2266 - Wikipedia

    en.wikipedia.org/wiki/NGC_2266

    NGC 2266 is an open cluster [5] of stars in the constellation of Gemini. It was discovered by German-British astronomer William Herschel on 7 December 1785. [6] This is a relatively dim cluster with an integrated visual magnitude of 9.5 and an angular size of 5.0′. The stellar members can be readily resolved with an amateur telescope. [3]