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Type of star cluster
An open cluster is a type of star cluster made of tens to a few thousand stars that were formed from the same giant molecular cloud and have roughly the
Open_cluster
This is a list of open clusters located in the Milky Way. An open cluster is an association of up to a few thousand stars that all formed from the same
List_of_open_clusters
Star cluster in the constellation of Taurus
known as Seven Sisters and Messier 45 (M45), is an asterism of an open star cluster containing young B-type stars in the northwest of the constellation
Pleiades
Open cluster in the constellation Cancer
The Beehive Cluster (also known as Praesepe (Latin for "manger", "cot" or "crib"), M44, NGC 2632, or Cr 189) is an open cluster in the constellation Cancer
Beehive_Cluster
Group of stars
star clusters can be distinguished: globular clusters, tight groups of ten thousand to millions of old stars which are gravitationally bound; and open clusters
Star_cluster
Open cluster in Scorpius
The Butterfly Cluster (cataloged as Messier 6 or M6, and as NGC 6405) is an open cluster of stars in the southern constellation of Scorpius. Its name derives
Butterfly_Cluster
Open cluster in the constellation Crux
The Jewel Box (also known as the Kappa Crucis cluster, NGC 4755, or Caldwell 94) is an open cluster in the constellation Crux, originally discovered by
Jewel_Box_(star_cluster)
astronomy, an open cluster family is a group of approximately coeval (age range ∼ {\displaystyle \sim } 30 Myr) young open star clusters located in a relatively
Open_cluster_family
Old open cluster in the constellation Cancer
or NGC 2682) and sometimes called the King Cobra Cluster or the Golden Eye Cluster is an open cluster in the southern, equatorial half of Cancer. It was
Messier_67
star clusters, ordered by diameter in light years, above the size of 50 light years in diameter. This list includes globular clusters, open clusters, super
List_of_largest_star_clusters
Open cluster in the constellation Cepheus
Polarissima Cluster) is an open cluster in the constellation Cepheus. It was discovered by John Herschel in 1825. Unlike most open clusters that drift
NGC_188
Open cluster in the constellation Taurus
41, Collinder 50, or Melotte 25) is the nearest open cluster and one of the best-studied star clusters. Located about 153 light-years (47 parsecs) away
Hyades_(star_cluster)
Spherical collection of stars
A globular cluster is a spheroidal conglomeration of stars that is bound together by gravity, with a higher concentration of stars towards its center
Globular_cluster
Astronomical objects catalogued by Charles Messier
when all of the objects can be viewed over a single night. Open cluster Globular cluster Diffuse nebula Planetary nebula Supernova remnant
Messier_object
Topics referred to by the same term
halo of the parent galaxy Open cluster, a spherical collection of stars that orbits a galaxy in the galactic plane Cancer cluster, in biomedicine, an occurrence
Cluster
Star in the constellation Scutum
hypergiant (RHG) star in the constellation of Scutum. It lies near the open cluster Stephenson 2, which is located about 5.8 kiloparsecs (19,000 light-years)
Stephenson_2_DFK_1
Open cluster in the constellation Scutum
The Wild Duck Cluster (also known as Messier 11, or NGC 6705) is an open cluster of stars in the constellation Scutum (the Shield). It was discovered by
Wild_Duck_Cluster
Open cluster in the Orion Nebula in the constellation Orion
Trapezium or Orion Trapezium Cluster, also known by its Bayer designation of Theta1 Orionis (θ1 Orionis), is a tight open cluster of stars in the heart of
Trapezium_Cluster
Interstellar clouds in the constellation Carina
several related open clusters, including numerous O-type stars and several Wolf–Rayet stars. Carina OB1 encompasses the star clusters Trumpler 14 and
Carina_Nebula
Open cluster in the constellation Opiuchus
/ Melotte 179), also known as the Summer Beehive Cluster or Poseidon's Trident , is an open cluster of stars in the constellation Ophiuchus, about 1°
IC_4665
Open cluster in Sagittarius
as IC 4725, is an open cluster of stars in the southern constellation of Sagittarius. The first recorded observation of this cluster was made by Philippe
Messier_25
Open star cluster in the constellation of Scorpius
and sometimes known as Ptolemy's Cluster, is an open cluster of stars in the constellation of Scorpius. The cluster is easily detectable with the naked
Messier_7
Open clusters in the constellation Perseus
The Double Cluster, also known as Caldwell 14, consists of the open clusters NGC 869 and NGC 884 (often designated h Persei and χ (chi) Persei, respectively)
Double_Cluster
Asterism of 10 stars in the constellation Vulpecula
catalogue of open clusters. The status of this group as a star cluster has changed in recent years. The group was considered to be a cluster for most of
Brocchi's_Cluster
Clustering standard in computing
Open Cluster Framework (OCF) is a set of standards for computer clustering. The project started as a working group of the Free Standards Group, now part
Open_Cluster_Framework
Mathematical theory on behavior of connected clusters in a random graph
large ones. In this case the corresponding question is: does an infinite open cluster exist? That is, is there a path of connected points of infinite length
Percolation_theory
Minor spiral arm of the Milky Way galaxy; contains the Solar System
Butterfly Cluster (M6) The Ptolemy Cluster (M7) Open Cluster M23 Open Cluster M25 The Dumbbell Nebula (M27) Open Cluster M29 Open Cluster M34 Open Cluster M35
Orion_Arm
Open cluster in the constellation Coma Berenices
Coma Star Cluster (also known as Melotte 111 or Collinder 256) is a nearby open cluster located in the constellation Coma Berenices. The cluster contains
Coma_Star_Cluster
Wolf–Rayet star in the constellation Dorado
stars of the large NGC 2070 open cluster in the Tarantula Nebula (30 Doradus) in the Large Magellanic Cloud. The cluster can be seen in the far southern
R136a1
Open cluster in the constellation Gemini
35 or M35, also known as NGC 2168 or the Shoe-Buckle Cluster, is a relatively close open cluster of stars in the west of Gemini, at about the declination
Messier_35
Open cluster in the constellation Monoceros
and the Christmas Tree Cluster. Two other objects are within this designation but not officially included, the Snowflake Cluster, and the Fox Fur Nebula
NGC_2264
Astronomical objects catalogued by Patrick Moore
NASA/Hubble also lists the 109 objects by their Caldwell number. Open cluster Globular cluster Dark nebula Diffuse nebula Planetary nebula Supernova
Caldwell_catalogue
Open cluster in the constellation Canis Major
Messier 41 (also known as M41 or NGC 2287) is an open cluster in the constellation Canis Major. Located approximately four degrees south of Sirius, it
Messier_41
Open cluster in the constellation Serpens
and as NGC 6611, and also known as the Star Queen Nebula) is a young open cluster of stars in the constellation Serpens, discovered by Jean-Philippe de
Eagle_Nebula
Planetary nebula in the constellation Pyxis
130 kK. NGC 2818 appears very close to the open cluster NGC 2818A. Whether it is a member of the open cluster has been controversial: earlier papers found
NGC_2818
Constellation in the northern celestial hemisphere
Because of its position near the winter Milky Way, Auriga has many bright open clusters in its borders, including M36, M37, and M38, popular targets for amateur
Auriga
Constellation in the northern celestial hemisphere
average. NGC 457 is another open cluster in Cassiopeia, also called the E.T. Cluster, the Owl Cluster, and Caldwell 13. The cluster was discovered in 1787
Cassiopeia_(constellation)
Open cluster in the constellation Sagittarius
Messier 21 or M21, also designated NGC 6531 or Webb's Cross, is an open cluster of stars located to the north-east of Sagittarius in the night sky, close
Messier_21
−01° 50′ 39″) or IC 243 (02h 38m 32.2s, −06° 54′ 07″) Thought to be an open cluster Gaia data shows stars in the area are unrelated Originally this NGC object
List of NGC objects (1001–2000)
List_of_NGC_objects_(1001–2000)
Open cluster in the constellation Puppis
Messier 93 or M93, also known as NGC 2447 or the Critter Cluster, is an open cluster in the modestly southern constellation Puppis, the imagined poop
Messier_93
Constellation in the northern celestial hemisphere
body of Christ. There is an abundance of deep-sky objects, with many open clusters, nebulae of various types and supernova remnants found in Cygnus due
Cygnus_(constellation)
Constellation in the southern sky
is an open cluster. NGC 1820 (RA 05h 04m 02s Dec -67° 15.9′) is an open cluster. NGC 1850 (RA 05h 08m 44s Dec -68° 45.7′) is a globular cluster. NGC 1854
Dorado
Final stage in open cluster evolution
In astronomy, an open cluster remnant (OCR) is the final stage in the evolution of an open star cluster. Viktor Ambartsumian (1938) and Lyman Spitzer (1940)
Open_cluster_remnant
Zodiac constellation in the northern hemisphere
Castor and Pollux eastward from the familiar V-shaped asterism (the open cluster Hyades) of Taurus and the three stars of Orion's Belt (Alnitak, Alnilam
Gemini_(constellation)
Red supergiant star within open cluster RSGC1
RSGC1-F01 is a red supergiant star in the young open cluster RSGC1 located in the constellation of Scutum. It is one of the largest stars discovered so
RSGC1-F01
Constellation in the southern celestial hemisphere
under optimum conditions. Crux also contains the bright and colourful open cluster known as the Jewel Box (NGC 4755) on its eastern border. Nearby to the
Crux
Zodiac constellation straddling the celestial equator
that are of interest to astronomers. Taurus hosts two of the nearest open clusters to Earth, the Pleiades and the Hyades, both of which are visible to
Taurus_(constellation)
Catalogue of astronomical objects
contains 44 objects that are members of the Herschel 400: Open cluster Globular cluster Diffuse nebula Planetary nebula Galaxy Category:IC objects
Herschel_400_Catalogue
Set of computers configured in a distributed computing system
using Open Source Cluster Application Resources (OSCAR)), different operating systems can be used on each computer, or different hardware. Clusters are
Computer_cluster
Constellation in the southern celestial hemisphere
through the sky. The Milky Way passes through Canis Major and several open clusters lie within its borders, most notably M41. Canis Major contains Sirius
Canis_Major
Constellation in the southern celestial hemisphere
magnitude. Messier 93 (M93) is another open cluster somewhat to the south. NGC 2451 is a very bright open cluster containing the star c Puppis, and the
Puppis
Type of emission nebula created by dying red giants
in an open cluster that is agreed upon by independent researchers. That case pertains to the planetary nebula PHR 1315-6555 and the open cluster Andrews-Lindsay
Planetary_nebula
Massive open cluster in the constellation Scutum
(Red Supergiant Cluster 2), is a young massive open cluster belonging to the Milky Way galaxy. It was discovered in 1990 as a cluster of red supergiants
Stephenson_2
Zodiac constellation in the northern hemisphere
of our celestial sphere is Praesepe (Messier 44), one of the closest open clusters to Earth and a popular target for amateur astronomers. Cancer is a medium-sized
Cancer_(constellation)
astronomical objects Thought to be an open cluster Gaia data shows stars in the area are unrelated Thought to be an open cluster Gaia data shows stars in the area
List of NGC objects (7001–7840)
List_of_NGC_objects_(7001–7840)
Most massive known star clusters
nearby stars influenced by the cluster or by estimating the cluster's relaxation time. The masses of open star clusters can be estimated by measuring the
List of most massive star clusters
List_of_most_massive_star_clusters
Open cluster in the constellation Cassiopeia
Messier 52 or M52, also known as NGC 7654 or the Scorpion Cluster, is an open cluster of stars in the highly northern constellation of Cassiopeia. It
Messier_52
Diffuse nebula in the constellation Orion
Mag/arcsec2. The Orion Nebula contains a very young open cluster, known as the Trapezium Cluster due to the asterism of its primary four stars within
Orion_Nebula
Natural number
death. Iron is the 26th element in the periodic table. Messier 26 is an open cluster of stars in the southern constellation of Scutum. NGC 26 is a spiral
26_(number)
Emission nebula in the constellation Scorpius
This nebula includes the open cluster Pismis 24, which is home to several massive stars. One of the brightest stars in the cluster, Pismis 24-1, was thought
NGC_6357
Open cluster in the constellation Auriga
Messier 38 or M38, also known as NGC 1912 or Starfish Cluster, is an open cluster of stars in the constellation of Auriga. It was discovered by Giovanni
Messier_38
Open cluster in the constellation Hydra
Messier 48 or M48, also known as NGC 2548, is an open cluster of stars in the equatorial constellation of Hydra. It sits near Hydra's westernmost limit
Messier_48
Catalogue (NGC). The astronomical catalogue is composed mainly of star clusters, nebulae, and galaxies. Other objects in the catalogue can be found in
List of NGC objects (2001–3000)
List_of_NGC_objects_(2001–3000)
Constellation split into two non-contiguous parts
Within this HII region is the open cluster NGC 6604, which is the same age as the surrounding OB association, and the cluster is now thought to simply be
Serpens
Constellation in the northern celestial hemisphere
and many of the surrounding stars are members of an open cluster known as the Alpha Persei Cluster. The best-known star, however, is Algol (Beta Persei)
Perseus_(constellation)
Stars that host planetary systems
stars form in open clusters, but very few planets have been found in open clusters and this led to the hypothesis that the open-cluster environment hinders
Planet-hosting_star
Open cluster in constellation Perseus
Messier 34 (also known as M34, NGC 1039, or the Spiral Cluster) is a large and relatively near open cluster in Perseus. It was probably discovered by Giovanni
Messier_34
Faint constellation on the celestial equator
(1883) as they hunted for comets. The Christmas Tree Cluster (NGC 2264) is another open cluster in Monoceros. Named for its resemblance to a Christmas
Monoceros
Open cluster in the constellation Perseus
The Alpha Persei Cluster, also known as Melotte 20 or Collinder 39, is an open cluster of stars in the northern constellation of Perseus. To the naked
Alpha_Persei_Cluster
Type of random graph
{\displaystyle A(\omega )=\{e\in E:\omega (e)=1\}} be the set of open bonds, then an open cluster or FK cluster is any connected component in A ( ω ) {\displaystyle
Random_cluster_model
Open cluster in the constellation Carina
known as the Pincushion Cluster, Football Cluster, the Black Arrow Cluster, or the Wishing Well Cluster, is an open cluster some 405 parsecs from Earth
NGC_3532
Dense star cluster of massive young stars in the constellation of Sagittarius
The Quintuplet Cluster is a dense cluster of massive young stars about 100 light years from the Galactic Center (GC). Its name comes from the fact it has
Quintuplet_Cluster
Star cloud in Sagittarius
the small open cluster NGC 6603. The location of the Small Sagittarius Star Cloud is near the Omega Nebula (also known as M17) and open cluster Messier
Small_Sagittarius_Star_Cloud
Constellation in the southern celestial hemisphere
star in, and gives its name to, the Omicron Velorum Cluster, also known as IC 2391, an open cluster located around 500 light-years away. Seven star systems
Vela_(constellation)
Small constellation in the southern celestial hemisphere
globular cluster and a planetary nebula. The two best known deep sky objects in Scutum are M11 (the Wild Duck Cluster) and the open cluster M26 (NGC 6694)
Scutum_(constellation)
Constellation in the southern celestial hemisphere
unaided eye. In total, the cluster possesses approximately 60 stars. The Southern Pleiades is particularly large for an open cluster, with a diameter of approximately
Carina_(constellation)
Open star cluster in the constellation Cassiopeia
Rose Cluster) is an open cluster located around 7,600 light years from Earth in the constellation of Cassiopeia. It is intermediate-age cluster with estimates
NGC_7789
Open star cluster in the constellation Cassiopeia
an open star cluster in the northern constellation of Cassiopeia. Alternatively, it is designated Caldwell 13, and known as the Dragonfly Cluster, E.T
NGC_457
Swiss-American astronomer (1886–1956)
is most noted for observing that the brightness of the more distant open clusters was lower than expected, and the stars appeared more red. This was explained
Robert_Julius_Trumpler
Star cluster in the constellation Scorpius
NGC 6383 is an open cluster of stars in the constellation of Scorpius. It was discovered by English astronomer John Herschel in 1847. In the New General
NGC_6383
Massive open cluster with many red supergiants in the constellation Scutum
RSGC1 (Red Supergiant Cluster 1) is a young massive open cluster in the Milky Way galaxy. It was discovered in 2006 in the data generated by several infrared
RSGC1
Open cluster in the constellation Orion
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
NGC_2169
Pattern of stars recognized on Earth's night sky
and 12 Aquilae, Eta Scuti, HD 174208, R and Beta Scuti. The compact open cluster Messier 11 is also aligned with the curve. Asterisms range from the large
Asterism_(astronomy)
Emission nebula in the constellation Monoceros
Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from
Rosette_Nebula
Constellation in the southern celestial hemisphere
same size as the full Moon. Centaurus is also home to open clusters. NGC 3766 is an open cluster 6,300 light-years from Earth that is visible to the unaided
Centaurus
Constellation near the celestial equator
light-years in diameter. More deep-sky objects: NGC 6709 is a loose open cluster containing roughly 40 stars, which range in magnitude from 9 to 11. It
Aquila_(constellation)
Asterism of four stars in the constellation Aquarius
Aquarius which was long thought to be a small open cluster. It lies several arcminutes east of globular cluster M72. According to Gaia EDR3, the stars are
Messier_73
Natural number
The atomic number of strontium The Messier object M38, a magnitude 7.0 open cluster in the constellation Auriga The New General Catalogue object NGC 38,
38_(number)
Densest star cluster known
The Arches Cluster is one of the densest star clusters in the Milky Way, about 100 light-years from its center in the constellation Sagittarius (The Archer)
Arches_Cluster
Open cluster
NGC 1582 is an open cluster located in the constellation of Perseus. It was discovered by the German-British astronomer William Herschel in 1788. NGC 1582
NGC_1582
Open cluster in the constellation Auriga
Messier 36 or M36, also known as NGC 1960 or the Pinwheel Cluster, is an open cluster of stars in the somewhat northern Auriga constellation. It was discovered
Messier_36
Constellation in the southern celestial hemisphere
the Milky Way and contains several open clusters (notably NGC 6200) and diffuse nebulae (including the bright cluster/nebula pair NGC 6188 and NGC 6193)
Ara_(constellation)
Open star cluster in the constellation Orion
The Lambda Orionis Cluster (also known as the Collinder 69) is an open star cluster located north-west of the star Betelgeuse in the constellation of Orion
Lambda_Orionis_Cluster
Open cluster in the constellation Auriga
(also known as M37, NGC 2099, or the Salt and Pepper Cluster) is the brightest and richest open cluster in the constellation Auriga. It was discovered by
Messier_37
Catalogue (NGC). The astronomical catalogue is composed mainly of star clusters, nebulae, and galaxies. Other objects in the catalogue can be found in
List_of_NGC_objects_(1–1000)
Open cluster in the constellation Gemini
is an open cluster in the constellation Gemini. It was discovered by German-British astronomer William Herschel on 19 November 1783. The cluster is about
NGC_2420
Open cluster in the constellation Cygnus
known as NGC 7092, is an open cluster of stars in the constellation of Cygnus, sometimes referred to as the Pyramid Cluster. It is positioned two degrees
Messier_39
Large self-illuminated object in space
enormous globular clusters with hundreds of thousands of stars. Such systems orbit their host galaxy. The stars in an open or globular cluster all formed from
Star
Open cluster in the constellation Carina
Carinae Cluster, or Caldwell 102) is an open cluster in the constellation Carina. Discovered by Abbe Lacaille in 1751 from South Africa, the cluster is easily
IC_2602
Catalogue of 245 star clusters compiled By British astronomer Philibert Jacques Melotte
mistaken for a globular cluster. List of astronomical catalogues Collinder catalogue - a similar catalogue of open star clusters published by Per Collinder
Melotte_catalogue
OPEN CLUSTER
OPEN CLUSTER
Boy/Male
English French
Open.
Boy/Male
Hindu, Indian
Open
Boy/Male
English French
Open.
Boy/Male
English French
Open.
Male
Welsh
Variant form of Welsh Owen, possibly OUEN means "born of yew."
Boy/Male
English French American
Open.
Boy/Male
English
Open.
Boy/Male
Celtic Welsh
Son of Owen.
Male
Welsh
 Modern Welsh form of Old Welsh Owain, OWEN means "born of yew." Compare with another form of Owen.
Female
English
English short form of Latin Penelope, PEN means "weaver of cunning."
Male
Swedish
Norwegian and Swedish form of Old Norse Óðinn, ODEN means "poetry, song" and "eager, frenzied, raging."
Boy/Male
American, British, English, French
Open; Variant of Darrel Open
Surname or Lastname
English
English : variant of Penn.Dutch : metonymic occupational name for a clerk or penman, from Dutch pen ‘pen’.Cambodian : unexplained.
Male
English
 Anglicized form of Irish Gaelic Eóghan, OWEN means "born of yew." Compare with another form of Owen.
Boy/Male
English French
Open.
Boy/Male
Welsh
Son of Owen.
Boy/Male
English French
Open.
Boy/Male
French
Open.
Female
Thai/Siamese
Thai name PEN-CHAN means "full moon."
Boy/Male
English French
Open.
OPEN CLUSTER
OPEN CLUSTER
Girl/Female
Indian, Telugu
Very Soft
Girl/Female
English, Indian, Telugu
Beautyful; Peaceful
Boy/Male
Indian, Marathi
Speak
Biblical
vine; hissing; a color inclining to yellow
Girl/Female
Tamil
Amruta | அமரதா , அமரதாÂ
Nectar
Girl/Female
Muslim/Islamic
Princess
Girl/Female
Muslim/Islamic
Daughter of the Prophet (S.A.W)
Male
Japanese
(1-義郎, 2-良郎, 3-義åš) Japanese name YOSHIRO means 1) "correct boy/man," 2) "good boy/man," and 3) "vastly correct."
Boy/Male
Tamil
Desired
Boy/Male
Anglo, British, Celtic, English
Name of a King
OPEN CLUSTER
OPEN CLUSTER
OPEN CLUSTER
OPEN CLUSTER
OPEN CLUSTER
a.
Taking place in the open air; outdoor; as, an open-air game or meeting.
a.
Free or cleared of obstruction to progress or to view; accessible; as, an open tract; the open sea.
v. t. & i.
To open.
v. t.
To make or set open; to render free of access; to unclose; to unbar; to unlock; to remove any fastening or covering from; as, to open a door; to open a box; to open a room; to open a letter.
a.
Uttered with a relatively wide opening of the articulating organs; -- said of vowels; as, the an far is open as compared with the a in say.
a.
Open.
a.
Free of access; not shut up; not closed; affording unobstructed ingress or egress; not impeding or preventing passage; not locked up or covered over; -- applied to passageways; as, an open door, window, road, etc.; also, to inclosed structures or objects; as, open houses, boxes, baskets, bottles, etc.; also, to means of communication or approach by water or land; as, an open harbor or roadstead.
a.
Produced by an open string; as, an open tone.
a.
Free; disengaged; unappropriated; as, to keep a day open for any purpose; to be open for an engagement.
a.
Not of a quality to prevent communication, as by closing water ways, blocking roads, etc.; hence, not frosty or inclement; mild; -- used of the weather or the climate; as, an open season; an open winter.
n.
Open or unobstructed space; clear land, without trees or obstructions; open ocean; open water.
v. t.
To loosen or make less compact; as, to open matted cotton by separating the fibers.
v. t.
To spread; to expand; as, to open the hand.
a.
Having the mouth open; gaping; hence, greedy; clamorous.
a.
With eyes widely open; watchful; vigilant.
a.
Not drawn together, closed, or contracted; extended; expanded; as, an open hand; open arms; an open flower; an open prospect.
a.
Free to be used, enjoyed, visited, or the like; not private; public; unrestricted in use; as, an open library, museum, court, or other assembly; liable to the approach, trespass, or attack of any one; unprotected; exposed.
a.
Not settled or adjusted; not decided or determined; not closed or withdrawn from consideration; as, an open account; an open question; to keep an offer or opportunity open.
v. t.
To enter upon; to begin; as, to open a discussion; to open fire upon an enemy; to open trade, or correspondence; to open a case in court, or a meeting.
a.
Not concealed or secret; not hidden or disguised; exposed to view or to knowledge; revealed; apparent; as, open schemes or plans; open shame or guilt.