Open Cluster
Related Category: Astronomy: General
see star cluster.
More on Open Cluster
Star Cluster - a group of stars near each other in space and resembling each other in certain characteristics that suggest a common origin for the group.
Open Cluster Celebration
Last week, we talked a little about open clusters, and got to examine two of them, the famous Double Cluster in Perseus.
Open clusters - NGC objects 4755, 265, 290 & 6231
Why Open Clusters are Important ...
An open cluster is characterized by the fact that the stars are not gravitationally bound. Although the stars in an open cluster are believed to have formed together, they will eventually separate due to the rotation of the Milky Way.
Open cluster
Wikipedia, the free encyclopedia - Cite This Source
An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud, and are still loosely gravitationally bound to each other.
Dutch Open Telescope
The Dutch Open Telescope
The Dutch Open Telescope (DOT), located on Roque de los Muchachos Observatory, La Palma (near the Swedish Solar Telescope), ...
First is an open letter to first-year astronomy teachers from Dennis Hands, a veteran teacher who is new to the astronomy classroom at Grimsley High School in Greensboro, North Carolina.
The Pleiades Open Cluster, M45.
Where in the galaxy would you typically expect to find open clusters like the Pleiades?
Beyond the New General Catalog there are dozens of other catalogues of deep sky objects - the Dolidze Dzimselejsvili (DoDz) open clusters catalogue is one of them.
Which other UK observatories are open to the public?
A number of other British observatories are open to visitors, at least during daylight hours.
Open Star Cluster
Open star clusters are groups of stars which formed from the same huge cloud of gas and dust.
Open to Sunlight
Our own star makes daylight that removes the other stars from view. Rather than look at Sun's physical nature, examine here its marvelous effects as it plays with and off the air.
OPEN CLUSTERS
Figure 17.23(a) shows a rather loose cluster"the Pleiades, or Seven Sisters"a well-known naked-eye object in the constellation Taurus.
Open here the home page of a French translation L'Exploration de la Magnétosphère Terrestre , by Kamil Fadel and Marielle Vergès of Paris, France. Only sections listed there in bold face have been translated.
Open Issues
There is no completely satisfactory theory as to how Deimos and Phobos came to be in orbit around Mars.
Home ... Mars ... Phobos ... Deimos ... Jupiter ... Data
Bill Arnett; last updated: 2004 Nov 19 ...
Open star cluster M41 is the most promient deep sky object in Canis Major.
List of Constellations
Winter Sky ...
open cluster
a system containing a few dozen to a few thousand stars that formed from the same stellar nursery
opposition ...
Open Cluster
(a) A small, loose cluster of stars that typically contains several hundred members. The best examples are the Hyades and the Pleiades, both in the constellation Taurus.
Open Cluster: An open cluster consists of about a few hundred stars, the stars are mainly younger stars. The typical diameter of an open cluster is less than 100 light years.
open cluster - a loose collection of stars that are gravitaionally interacting; the stars in an open cluster form together from the same interstellar cloud so they all have similar ages, distances, ...
OPEN CLUSTER - Cluster of stars usually containing several 100 members packed into a region usually less than 20 light years in size. They are normally found near regions of star formation in the spiral arms of galaxies.
Open star cluster A loose association of stars numbering from a few dozen to hundreds.
Opposition When a celestial body is opposite the Sun in the sky.
Orbit The path followed by one body as it moves around another.
Open cluster
A diffuse association of a few dozen to a few thousand stars, all of which were born together and which travel through space together. The Pleiades in Taurus and Beehive Cluster in Cancer are familiar examples.
Open system may refer to:*Open system , one of a class of computers and associated software that provides some combination of interoperability, portability and open software standards, particularly Unix and Unix-like systems...
open cluster
A loose collection of hundreds of stars that are gravitationally bound to each other. Also known as a galactic cluster.
opposition
When a superior planet is directly opposite from the Sun in our sky, and is closest to the Earth.
Open Star Cluster
A cluster of 10 to 10,000 stars with an open, transparent appearance. The stars are not tightly grouped. Usually relatively young and located in the disk of the galaxy.
Open Universe ...
Open Cluster
a collection of young stars that formed together. They may or may not be still bound by gravity. Some of the youngest open clusters are still embedded in the gas and dust from which they formed.
Open Cluster
A loose array (though some can be remarkably compact) of tens to thousands of stars located near each other in space. Open clusters are weakly bound gravitationally and tend to gradually disperse over periods of millions of years.
Open Cluster. A loose association of stars with no clearly defined shape. Often referred to as 'Galactic Clusters' since they are all found close to the galactic plane (of our galaxy).
open orbit: An orbit that does not return to its starting point; an escape orbit. (See closed orbit.)
open universe: A model universe in which the average density is less than the critical density needed to halt the expansion.
OPEN CLUSTER
An alternative name for a galactic cluster.
OPPOSITION ...
Open cluster- a group of some few hundred stars bound by gravity and moving through space together ...
[edit] Open House days
The lab has an open house once a year on a Saturday and Sunday in May, when the public is invited to tour the facilities and see live demonstrations of JPL science and technology.
Open Cluster
Also known as a galactic cluster, an open cluster consists of numerous young stars that formed at the same time within a large cloud of interstellar dust and gas. Open clusters are located in the spiral arms or the disks of galaxies.
Open star cluster NGC 6025
General:
This nice little constellation is located close to circumpolar regions of the south pole of the sky. It is lying between DECL=-60 degrees and DECL=-70 degrees and RA=17h and RA=15h.
Open Clusters are also called Galactic Clusters and contain about 1000 stars or so. There are probably around 20,000 open clusters in our galaxy, and most are found in the main body of the galaxy (the plane).
open universe Geometry that the universe would have if the density of matter were less than the critical value. In an open universe there is not enough matter to halt the expansion of the universe. An open universe is infinite in extent.
Open star cluster NGC752 is visible without optics but becomes quite a bevy of stars with a telescope.
NGC891 can be seen as a spiral galaxy in a 4.5inch(112.5mm) telescope.
open cluster
Richer but fainter than NGC 6193 and requires a small telescope. Magnitude 7.1; diameter 12'; distance 3,600 light-years; R.A. 17h 21m, Dec. -49° 54'
NGC 6397 ...
OPEN CLUSTER
An open cluster is a loose collection of up to about 1,000 relatively young stars that formed around the same time. An open cluster is about 10 parsecs across. Examples include the Pleiades and Hyades.
Open Cells Over The Ocean
What atmospheric scientists refer to as open cell cloud formation is a regular occurrence on the back side of a low pressure system or cyclone in the mid-latitudes.
open universe - (n.)
The version of big bang cosmology in which the universe will expand forever. An open universe has infinite volume.
opposition - (n.) ...
Open models can have an age for the universe ranging from the Hubble time down to 2/3 the Hubble time. The flat model has an age exactly equal to 2/3 the Hubble time, and the closed models have ages less than this.
An Open Universe
Click on image for full size
STScI
If the Universe is Open or Flat then it will continue to expand for eternity.
An open star cluster in the constellation of Taurus, the Pleiades is easy to see with the naked eye. Those with good eyesight can see six stars but binoculars reveal many more.
5. Open Clusters versus Globular Clusters
Standard A: Science as Inquiry
Standard 1: Problem Solving ...
See open cluster. [H76]
Galactic Coordinates
A system of coordinates based on the mean plane of the Galaxy, which is inclined about 63° to the celestial equator.
The open-loop receivers select a band of frequencies to amplify for further processing and storage by RS or VLBI equipment. VLBI equipment typically outputs data to tapes that are delivered to a correlator at a different location.
The open cluster NGC 6530 is contained in the eastern part of the nebula. The young cluster (only several million years old) is nicely contrasted against the nebula.
The open cluster represents young stars, relatively recently formed, and these clusters are located in the disk of the Milky Way (the location of all recent star formation). Open clusters typically have 100 to 1000 stars.
M36 (open cluster)
M37 (open cluster)
M38 (open cluster)
Auriga was protrayed as a charioteer who was seen carying two to three children on his arm. He was also known as Erechtheus, son of Hephaestus (Called Vulcan by the Romans).
M46 (open cluster)
M47 (open cluster)
M93 (open cluster)
Puppis was originally part of the large constellation Argo Navis.
MUST is open to all students and is particularly focused on engaging students from underserved and underrepresented groups to enter STEM fields.
This long open channel in ranges in width from under 1 km (3300 ft) to 4 km (2 mi). The portion of the channel visible here is over 120 km (72 mi) long. Scour lines are visible along the length of the channel, particularly where it makes abrupt turns.
book ~ {open book ~}: a modification of the polar ~, with the dial plate consisting of two planes set in a vee, with their intersection line lying parallel to the Earth's axis. A polar gnomon can be placed bisecting the angle of the two planes.
An important open question of cosmology is the shape of the universe.
Firstly, whether or not the Universe is flat, i.e. whether the Pythagorean theorem for right triangles is valid on the largest scales.
As Dawn threw open her doors in the east, Phaethon enthusiastically mounted the Sun-god's golden chariot studded with glittering jewels, little knowing what he was letting himself in for.
NGC 346 is an open star cluster, 210,000 light-years distant. The cluster is a star forming region. It is associated with a nebula that lies in the Small Magellanic Cloud.
Saturn's rings open up as it moves from autumn towards winter in its Northern Hemisphere.
The probe will open up to a distance of nearly 400 miles from the Centaur, equivalent to about four minutes of flight time between the vehicles.
 See also: Time, Light, Earth, Star, Second
  
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