Blog page 140




                                               

HD 34989

HD 34989 is a blue-white star in the main sequence, of apparent magnitude 5.80, in the constellation of Orion. It is 1700 light-years from the solar system.

                                               

HD 36780

HD 36780 is a star located in Orions belt, within the equatorial constellation of Orion. It has an orange hue and is dimly visible to the naked eye with an apparent visual magnitude of +5.92. The distance to this object is approximately 534 light ...

                                               

HD 36960

HD 36960 is a B-type main-sequence star in the constellation Orion. At an apparent magnitude of +4.78 it is easily visible to the naked eye in many areas, though in most urban areas it cannot be seen due to light pollution. Although it does not h ...

                                               

HD 37017

HD 37017 is a binary star system in the equatorial constellation of Orion. It has the variable star designation V1046 Orionis ; HD 37017 is the identifier from the Henry Draper Catalogue. The system is a challenge to view with the naked eye, bein ...

                                               

HD 37605

HD 37605 is a star in the equatorial constellation of Orion. It is orange in hue but is too faint to be visible to the naked eye, having an apparent visual magnitude of 8.67. Parallax measurements yield a distance estimate of 153 light years from ...

                                               

HD 37605 b

HD 37605 b is an extrasolar planet that has nearly three times more mass than Jupiter. It orbits close to the star, taking 54 days to revolve around the parent star HD 37605. Its orbit is highly eccentric, around 74%. Distance from HD 37605 range ...

                                               

HD 37756

HD 37756 is a class B2IV star in the constellation Orion. Its apparent magnitude is 4.95 and it is approximately 900 light years away based on parallax. It is a spectroscopic binary, with a period of 27 days and eccentricity 0.72.

                                               

HD 38529

In 2002, the planet HD 38529 b was discovered orbiting the star HD 38529 A by Debra Fischer and collaborators who detected it using the doppler spectroscopy technique. It has mass 78% that of Jupiter and orbits very close to the star, just beyond ...

                                               

HD 38529 b

HD 38529 b is an extrasolar planet approximately 138 light years away in the constellation of Orion. This planet was discovered in 2000. Because of its mass, it is likely that it is a gas giant.

                                               

HD 38858

HD 38858 is a G-type star, much like The Sun, with one detected planet. The planet, designated HD 38858 b, is about twice the mass of Uranus and orbits in the stars habitable zone. The last observation of this system for a dust disc or comet belt ...

                                               

HD 40657

HD 40657 is a single star in the equatorial constellation of Orion, near the constellation border with Monoceros. It has an orange hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.52. The star is located at a dis ...

                                               

HD 43587

HD 43587 is a stellar system approximately 63 light-years away in the constellation of Orion, visible to the naked eye. The system comprises four individual stars, with two widely separated binaries forming a quadruple system.

                                               

HD 44131

HD 44131 is a class M1III star in the constellation Orion. Its apparent magnitude is 4.91 and it is approximately 465 light years away based on parallax.

                                               

HD 290327 b

HD 290327 b is an extrasolar planet which orbits the G-type subgiant star HD 290327, located approximately 180 light years away in the constellation Orion. This planet has at least five halves the mass of Jupiter and takes 6.7 years to orbit the ...

                                               

HH 34

HH 34 is a Herbig–Haro object located in the Orion A molecular cloud at a distance of about 460 parsecs. It is notable for its highly collimated jet and very symmetric bow shocks. Bipolar jet from young star is ramming into surrounding medium at ...

                                               

HOPS 383

HOPS 383 is a Class 0 protostar. It is the first class-0 protostar discovered to have had an outburst, and as of 2015, the youngest protostar known to have had an outburst. The protostar was discovered by the Herschel Orion Protostar Survey team.

                                               

IC 434

IC 434 is a bright emission nebula in the constellation Orion. It was discovered on February 1, 1786 by William Herschel. The Horsehead Nebula is a dark nebula silhouetted against it.

                                               

IC 2118

IC 2118 is an extremely faint reflection nebula believed to be an ancient supernova remnant or gas cloud illuminated by nearby supergiant star Rigel in the constellation of Orion. It lies in the Eridanus constellation, about 900 light-years from ...

                                               

Iota Orionis

Iota Orionis is a multiple star system in the equatorial constellation of Orion the hunter. It is the eighth-brightest member of Orion with an apparent visual magnitude of 2.77 and also the brightest member of the asterism known as Orions Sword. ...

                                               

LP 658-2

LP 658-2 is a degenerate star in the constellation of Orion, the single known object in its system. It has an apparent visual magnitude of approximately 14.488.

                                               

Lynds 1616

Lynds 1616 is a very opaque dark nebula that is apparently a part of NGC 1788, involved in the Southwest part of it. It is most distinct due south of NGC 1788s central region. Lynds 1616 is located in the constellation Orion, at RA 05h 06m 54.0s ...

                                               

McNeils Nebula

"Only recently discovered by amateur astronomer Julian W. McNeil II, this peculiar looking object is currently classified as a cometary-type reflection nebula. The newborn nebula was found while processing a wide field image of Orions Messier 78 ...

                                               

Meissa

Meissa, designated Lambda Orionis is a star in the constellation of Orion. It is a multiple star approximately 1.100 ly away with a combined apparent magnitude of 3.33. The main components are an O8 giant star and a B-class main sequence star, se ...

                                               

Mintaka

Mintaka, designation Delta Orionis and 34 Orionis, is a multiple star system some 1.200 light-years from the Sun in the constellation of Orion. Together with Alnitak and Alnilam, the three stars form Orions Belt, known by many names among ancient ...

                                               

Mu Orionis

μ Orionis is a quadruple star system in the constellation Orion, similar to Mizar and Epsilon Lyrae with combined visual magnitude of 4.13. The four stars are known as Mu Orionis Aa, Mu Orionis Ab, Mu Orionis Ba, and Mu Orionis Bb. All four compo ...

                                               

NGC 1788

NGC 1788 is a reflection nebula in the constellation of Orion. It is rather sharply defined on its southwest perimeter where it is flanked by the dark nebula known as Lynds 1616. Lynds 1616 is apparently part of NGC 1788. The brightest involved s ...

                                               

NGC 1990

NGC 1990 was discovered by William Herschel in 1786 with an 18.7 inch telescope. Herschel recorded the observation in his observing code as "!!!, eL, E, ε Orionis inv p". However, there is doubt that this object exists in reality as several visua ...

                                               

NGC 1999

NGC 1999 is a dust-filled bright nebula with a vast hole of empty space represented by a black patch of sky, as can be seen in the photograph. It is a reflection nebula, and shines from the light of the variable star V380 Orionis. It was previous ...

                                               

NGC 2022

NGC 2022 is a planetary nebula in the equatorial constellation of Orion, located at a distance of 8.21 kilolight-years from the Sun. It was first observed by William Herschel on December 28, 1785, who described it as: considerably bright, nearly ...

                                               

NGC 2064

NGC 2064 is a reflection nebula in the constellation Orion. It was discovered on January 11, 1864 by Heinrich dArrest. It is part of a group of nebulae, that also includes Messier 78, NGC 2071 and NGC 2067.

                                               

NGC 2067

NGC 2067 is a reflection nebula in the constellation Orion. It was discovered in 1876 by Wilhelm Tempel. It is part of a group of nebulae that also includes Messier 78, NGC 2071 and NGC 2064.

                                               

NGC 2071

NGC 2071 is a reflection nebula in the constellation Orion. It was discovered on January 1, 1784 by William Herschel. It is part of a group of nebulae, that also includes Messier 78, NGC 2064 and NGC 2067.

                                               

NGC 2169

NGC 2169, is an open cluster in the Orion constellation. It was possibly discovered by Giovanni Batista Hodierna before 1654 and discovered by William Herschel on October 15, 1784. NGC 2169 is at a distance of about 3.600 light years away from Ea ...

                                               

NGC 2174

NGC 2174 is an H II emission nebula located in the constellation Orion and is associated with the open star cluster NGC 2175. It is thought to be located about 6.400 light-years away from Earth. The nebula may have formed through hierarchical col ...

                                               

NGC 2175

Open Cluster NGC 2175 is an open cluster in the Orion constellation, embedded in a diffusion nebula. It was discovered by Giovanni Batista Hodierna before 1654 and independently discovered by Karl Christian Bruhns in 1857. NGC 2175 is at a distan ...

                                               

NGC 2194

NGC 2194 is an open cluster in the constellation Orion. The cluster is located about 10.000 light years away from Earth. It is rich and moderately concentrated. The cluster lies 33 arcminutes west-northwest of 73 Orionis.

                                               

NGC 2202

NGC 2202 is an open cluster in the constellation Orion. The object was discovered in 1825 by the German-Russian astronomer Friedrich Georg Wilhelm von Struve.

                                               

Nu Orionis

Nu Orionis is a binary star system in the northeastern part of the constellation Orion. It should not be confused with the variable star NU Orionis. Nu Orionis has an apparent visual magnitude of 4.42, which is bright enough to be seen with the n ...

                                               

Omega Orionis

Omega Orionis is a star in the constellation Orion. Its apparent magnitude is 4.57 and is located approximately 1.400 light years from our solar system. It is surrounded by a cloud of dust, forming a modest reflection nebula over a light-year wid ...

                                               

Omicron1 Orionis

Omicron 1 Orionis is a binary star in the northeastern corner of the constellation Orion. It is visible to the naked eye with an apparent visual magnitude of 4.7. Based upon an annual parallax shift of 5.01 ± 0.71 mas, it is located approximately ...

                                               

Omicron2 Orionis

Omicron 2 Orionis is a solitary star in the constellation Orion. It has an apparent visual magnitude of 4.06, which is bright enough to be seen with the naked eye. Based upon an annual parallax shift of 17.54 mas, it is around 186 light years fro ...

                                               

Orion Molecular Cloud Complex

The Orion Molecular Cloud Complex is a star forming region with stellar ages ranging up to 12 Myr. Two giant molecular clouds are a part of it, Orion A and Orion B. The stars currently forming within the Complex are located within these clouds. A ...

                                               

PDS 110

PDS 110 is a young 11th magnitude star located approximately 1.090 light-years away in the constellation Orion. In 2017, it was discovered that the star is orbited by an exoplanet or brown dwarf with a disk of dust around it.

                                               

Phi1 Orionis

Phi 1 Orionis, is a binary star system in the constellation Orion, positioned less than a degree to the south of Meissa. It is visible to the naked eye with an apparent visual magnitude of 4.42. The distance to this system, based upon an annual p ...

                                               

Phi2 Orionis

Phi 2 Orionis is a star in the constellation Orion, where it forms a small triangle on the celestial sphere with the nearby Meissa and Phi 1 Orionis. This star is visible to the naked eye with an apparent visual magnitude of 4.081. Based upon an ...

                                               

Pi1 Orionis

Pi 1 Orionis is a star in the equatorial constellation of Orion. It is faintly visible to the naked eye with an apparent visual magnitude of 4.74. Based upon an annual parallax shift of 28.04 mas, it is located about 116 light years from the Sun. ...

                                               

Pi2 Orionis

Pi 2 Orionis is the Bayer designation for a solitary star in the equatorial constellation of Orion. Although the Bright Star Catalogue lists this as a spectroscopic binary star system, this does not appear to be the case. It is visible to the nak ...

                                               

Pi3 Orionis

Pi³ Orionis, also named Tabit, is a star in the equatorial constellation of Orion. At an apparent visual magnitude of 3.16, it is readily visible to the naked eye and is the brightest star in the lions hide that Orion is holding. As measured usin ...

                                               

Pi4 Orionis

Pi 4 Orionis is a binary star system in the western part of the Orion constellation. It is visible to the naked eye with an apparent visual magnitude of 3.7. Based upon an annual parallax shift of 3.1 mass, it is located roughly 1.050 light years ...

                                               

Pi5 Orionis

Pi 5 Orionis is a binary star system in the constellation Orion. It has an apparent visual magnitude of 3.69, which is bright enough to be visible to the naked eye on a clear night. Based upon an annual parallax shift of 2.43 mas, it is around 1. ...