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Latest Open clusters Stories

star cluster NGC 3532
2014-11-27 04:00:54

NGC 3532 is a bright open cluster located some 1300 light-years away in the constellation of Carina (The Keel of the ship Argo). It is informally known as the Wishing Well Cluster, as it resembles scattered silver coins which have been dropped into a well.

New ESA/Hubble Flickr Page Launched
2014-10-28 03:10:46

Your Hubble Pictures, a new ESA/Hubble Flickr page, has been launched. It exists to host the drawings, paintings, processed astronomical images, models, photographs, cartoons and any other content inspired by Hubble and made by you.

wild duck cluster
2014-10-01 03:00:43

The Wide Field Imager on the MPG/ESO 2.2-meter telescope at ESO’s La Silla Observatory in Chile has taken this beautiful image, dappled with blue stars, of one of the most star-rich open clusters currently known — Messier 11, also known as NGC 6705 or the Wild Duck Cluster.

star cluster NGC 3293
2014-07-23 10:22:45

In this striking new image from ESO’s La Silla Observatory in Chile young stars huddle together against a backdrop of clouds of glowing gas and lanes of dust.

Diamonds In The Tail Of The Scorpion
2014-02-19 10:01:57

Messier 7, also known as NGC 6475, is a brilliant cluster of about 100 stars located some 800 light-years from Earth. In this new picture from the Wide Field Imager on the MPG/ESO 2.2-meter telescope it stands out against a very rich background of hundreds of thousands of fainter stars, in the direction of the center of the Milky Way.

Astronomers Focus In On Recently Formed Stars In The Southern Constellation Of Vela
2013-03-27 06:18:20

Astronomers have unveiled a new image of recently formed bright blue stars in the cluster NGC 2547.

Cosmic Gecko Imaged By ESO's Wide Field Imager
2013-02-13 05:09:02

A new image released by the European Space Observatory illustrates the bright star cluster NGC 6520, located in one of the richest star fields in the sky.

Star Cluster Could Help Astronomers Find Earth-Like Planets
2012-06-23 06:15:20

A loose star cluster located approximately 800 to 1,000 light years from Earth could be vital in helping experts not only to understand how stars like the Sun evolve, but also to help them in the search for Earth-like planets.

Image 1 - Venus Invades the Pleiades
2012-04-03 03:00:29

This week the second planet from the sun will pass directly in front of the Pleiades star cluster. It's a rare sunset conjunction that's easy to find with the unaided eye, but best seen through binoculars or a small telescope.

2011-10-20 04:23:36

Mysterious “blue stragglers” are old stars that appear younger than they should be: they burn hot and blue. Several theories have attempted to explain why they don’t show their age, but, until now, scientists have lacked the crucial observations with which to test each hypothesis.


Latest Open clusters Reference Libraries

10_0514adc71280f4b2b760e7b14d8143b32
2004-10-19 04:45:44

Taurus (the bull) Constellation -- Location: Zodiac constellation, visible in both Hemispheres; Coordinates: Right Ascension: 04h; Declination: +15; Source: Bull legends from various ancient civilizations, also Greek mythology, Egyptian, Arab, other The constellations that are included in the Zodiac - the 12 constellations recognized by Babylonian astronomers through which our Sun, moon, and planets appeared to travel during the course of a year - are considered to be among the oldest sky...

6_ee73912f0568b7aab1fb32a3d250b7b82
2004-10-19 04:45:42

Star Cluster -- Star clusters are physically bound systems of stars. In order of low compactness to high compactness (and in some sense also age) they range from stellar associations to open clusters to globular clusters. Star clusters are held together by the gravitation of their members. Due to both external (encounters with massive objects, influence of the host galaxy) and internal (encounters with other cluster members, stellar evolution) influences, clusters slowly evaporate. Their...

6_d262fe26be108a60a9b76138f3306a692
2004-10-19 04:45:42

Open Cluster -- An open cluster is a group of star formed from a molecular cloud, the illuminated parts of which we see as one or more nebulae. They are also called galactic clusters since they exist within the galaxy. All the stars in an open cluster have more or less the same age and the same chemical composition, so any difference between them is solely due to their mass. Most open clusters are dominated by their O-type and B-type giant blue stars, which are very luminous but...

3_0f65864ff2598ad12ea5c1e92520f5702
2004-10-19 04:45:40

Ptolemy Cluster -- Known to Ptolemy 130 AD. "M7 is a large and brilliant group, easily detected with the naked eye... the cluster is seen projected on a background of numerous faint and distant Milky Way stars." (Burnham). This splendid cluster was known to Ptolemy, who mentioned it about 130 AD, who described it as the "nebula following the sting of Scorpius". The description may also include M6, but this is uncertain. M7 was observed by Hodierna before 1654 who counted 30 stars,...

3_efee1883130f0c90e50ee54fabfac1822
2004-10-19 04:45:40

The Hyades -- The Hyades are an open star cluster located in the constellation Taurus. The closest star cluster to Earth, it is centered some 151 light years away. The brightest star in this direction is Aldebaran, but it is not a member of the cluster, being located at just over 40% of the distance. Not counting Aldebaran, approximately 300 stars are known or suspected to be members of the cluster; most are not visible to the naked eye. The stars of the Hyades are associated with one...

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Word of the Day
ecotone
  • A transitional zone between two communities containing the characteristic species of each.
The word 'ecotone' comes 'eco-' plus a Greek root meaning 'tension'.