Open Clusters

Open Clusters (59)

Tuesday, 30 November 2021 17:12

NGC 7790 and NGC 7788

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NGC 7790, center of image is a young open cluster located in Cassiopeia with an estimated age of 60 to 80 million years. Open cluster NGC 7788 lies to the lower left of NGC 7790

Additional Info

  • Constellation Cassiopeia
  • Right Ascension 23h 58m 24.2s
  • Declination +61° 12′ 30″
  • Distance (Lightyears) 10,800
  • Telescope Explore Scientific 127 Refractor
  • Camera ZWO 2600MM cmos
  • Magnitude 8.5
  • Trumpler Classification II2m
Friday, 26 November 2021 16:25

Messier 103 (2021)

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Messier 103 is an ope star cluster located in Cassiopeia. Contains at least 107 members, its one of the smallest and at 10,000 light years one of the more remote clusters.

Additional Info

  • Constellation Cassiopeia
  • Right Ascension 01h 33.2m
  • Declination +60°42′
  • Distance (Lightyears) 10,000
  • Telescope Explore Scientific 127 Refractor
  • Camera ZWO 2600MM cmos
  • Magnitude +7.4
Friday, 05 March 2021 13:54

NGC 2129

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A small compact open cluster. Consisting of 37 likely members, within a radius of 4 light years. Estimated age is around 10 million years making it a young cluster. 

Additional Info

  • Constellation Gemini
  • Right Ascension 06h 01m 06.5s
  • Declination +23° 10′ 20″
  • Distance (Lightyears) 7,200
  • Telescope Explore Scientific 127 Refractor
  • Camera ZWO 1600MM Mono cmos
  • Magnitude 6.7
Thursday, 21 January 2021 17:17

Messier 35

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Messier 35, and NGC 2158, two open clusters located in Gemini the Twins. These are more like distant relatives. M 35 is relatively near by at only 2,800 light years, and NGC 2158 is a distant 15,000 light years away.…

Additional Info

  • Constellation Gemini
  • Right Ascension 06h 08m 54.0s
  • Declination +24° 20′ 00″
  • Distance (Lightyears) 2,800
  • Telescope Orion ED80cft Refractor
  • Camera ZWO ASI071 OSC cmos
  • Magnitude 5.1
  • Trumpler Classification III 3 r
Friday, 15 January 2021 16:28

NGC 7510

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NGC 7510 a compressed young open cluster located in Cepheus. Some dimming of the stars due to a plume of gas and dust that is plentiful in the area.

Additional Info

  • Constellation Cepheus
  • Right Ascension 23h 11.1m
  • Declination +60° 34′
  • Distance (Lightyears) 10,900
  • Telescope Explore Scientific 127 Refractor
  • Camera ZWO 1600MM Mono cmos
  • Magnitude 7.9
Wednesday, 30 December 2020 14:47

NGC 7209

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NGC 7209 is an open cluster located in Lacerta, it consists of around 150 members with an estimated age of 420 million years. Discovers by William Herschel in October 1787.

Additional Info

  • Constellation Lacerta
  • Right Ascension 22h 05m 07s
  • Declination +46° 29′ 00″
  • Distance (Lightyears) 3,800
  • Telescope Orion ED80cft Refractor
  • Camera ZWO ASI071 OSC cmos
  • Magnitude 7.7
  • Galaxy Type undefined
  • Variable Type undefined
  • B-V Color Index undefined
Thursday, 17 December 2020 15:16

Messier 45 - 2020 Version

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Messier 45 is a young open cluster located in Taurus. Also know as the Pleiades, or the Seven Sisters. Visible to the naked eye, the cluster has been known since ancient times. It's curious that Charles Messier included it in…

Additional Info

  • Constellation Taurus
  • Right Ascension 03h 47m 24s
  • Declination +24° 07′ 00″
  • Distance (Lightyears) 444
  • Telescope Orion ED80cft Refractor
  • Camera ZWO ASI071 OSC cmos
  • Magnitude 1.6
  • Galaxy Type undefined
Thursday, 17 December 2020 14:03

NGC 7686

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NGC 7686 an open cluster (maybe) located in Andromeda. One source says its just a chance alignment based on its HR diagram, everyone else classifies it as an open cluster. Distance 900-3,000 light years? Not a lot of info on…

Additional Info

  • Constellation Andromeda
  • Right Ascension 23h 29m 41.(3)s
  • Declination +49° 10′ 1
  • Distance (Lightyears) 900-3,000
  • Telescope Orion ED80cft Refractor
  • Camera ZWO ASI071 OSC cmos
  • Magnitude 5.6
  • Galaxy Type undefined
Thursday, 12 November 2020 17:17

NGC 129

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NGC 129 an open cluster in Cassiopeia. Contains several giant stars including the Cepheid variable star DL Cas which can used to measure its distance of around 5,300 light years. Contains 35 - 80 members and estimated age of 77…

Additional Info

  • Constellation Cassiopeia
  • Right Ascension 00h 30m 00s
  • Declination +60° 13′ 06″
  • Distance (Lightyears) 5,300
  • Telescope Orion ED80cft Refractor
  • Camera ZWO ASI071 OSC cmos
Friday, 06 November 2020 16:53

The Double Cluster 2020 Version

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The Double Cluster consists of two open clusters, NGC869 and NGC884 located in Perseus. Estimated age is 12.8 million years. Although visible to the naked eye, they need optical aid to show the two individual clusters and to see them…

Additional Info

  • Constellation Perseus
  • Right Ascension 2h 20m
  • Declination 57° 08′
  • Distance (Lightyears) 7,500
  • Telescope Orion ED80cft Refractor
  • Camera ZWO ASI071 OSC cmos
Thursday, 29 October 2020 13:43

NGC 6885 and NGC 6882

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NGC6885 and NGC6882 are a pair of overlapping open clusters located in Vulpecula. NGC 6885 is the small group of brighter stars, and NGC 6882 is the set of fainter stars or possibly it is Collinder 416 as there is…

Additional Info

  • Constellation Vulpecula
  • Right Ascension 20h 11m 56s
  • Declination 26d 29m 20s
  • Distance (Lightyears) 2,000
  • Telescope Orion ED80cft Refractor
  • Camera ZWO ASI071 OSC cmos
Wednesday, 14 October 2020 01:02

IC 4756

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An open cluster located in Serpens located about 1,500 light years away. Somewhat difficult to pick out against the dense background stars of the Milky Way. 

Additional Info

  • Constellation Serpens
  • Right Ascension 18h 38m 31.2s
  • Declination +05° 29′ 24″
  • Distance (Lightyears) 1,300
  • Telescope Orion ED80cft Refractor
  • Camera ZWO ASI071 OSC cmos
Friday, 09 October 2020 16:49

NGC 6633

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NGC 6633 Open cluster located in the rich star fields of Ophiuchus. It contains around 30 stars and is about 1,000 light years away with an estimated age of 600 million years.

Additional Info

  • Constellation Ophiuchus
  • Right Ascension 18h 27.7m
  • Declination 6° 34′
  • Distance (Lightyears) 1,000
  • Telescope Orion ED80cft Refractor
  • Camera ZWO ASI071 OSC cmos
Wednesday, 16 September 2020 14:30

NGC 7243

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NGC 7243 is an 6th magnitude open cluster located in Lacerta. The cluster contains around 40 members in a large and sparse cluster. It's estimated age is around 100 million years.

Additional Info

  • Constellation Lacerta
  • Right Ascension 22h 15m 08.6s
  • Declination +49° 53′ 51″
  • Distance (Lightyears) 2800
  • Telescope Orion ED80cft Refractor
  • Camera ZWO ASI071 OSC cmos
Tuesday, 23 June 2020 12:25

Messier 6 The Butterfly Cluster

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An open cluster located Scorpius. The name derives from Robert Burnham's description that it resembles an outline of a butterfly with open wings. The cluster is estimated to contain up to 300 members, and its age is 50 to 100…

Additional Info

  • Constellation Scorpius
  • Right Ascension 17h 40.1m
  • Declination −32° 13′
  • Distance (Lightyears) 1,600
  • Telescope Orion ED80cft Refractor
  • Camera ZWO ASI071 OSC cmos
Tuesday, 16 June 2020 14:25

Messier 11 The Wild Duck Cluster

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M11 is an open cluster located in the constellation of Scutum. The name comes from a v shape from the brighter stars that resemble a flock of ducks. One of the densest and most compact open clusters known. It contains…

Additional Info

  • Constellation Scutum
  • Right Ascension 18h 51m 05.0s
  • Declination −06° 16′ 12″
  • Distance (Lightyears) 6,120
  • Telescope Explore Scientific 127 Refractor
  • Camera ZWO 1600MM Mono cmos
Friday, 08 May 2020 16:11

NGC 2281

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NGC2281 Open cluster located in Auriga, located some 1,819 light years away with an estimated age of 610 million years. Es127/Zwo1600 scope/camera setup.

Additional Info

  • Constellation Auriga
  • Right Ascension 06h 48m 17.(0)s
  • Declination +41° 04′ 4"
  • Distance (Lightyears) 1,819
  • Telescope Explore Scientific 127 Refractor
  • Camera ZWO 1600MM Mono cmos
Tuesday, 05 May 2020 18:04

Messier 24

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Messier 24, one of the Messier objects that isn't a singular deep sky object, it is a dense concentration of stars located in the Sagittarius arm of our Milky Way Galaxy, hence it is often referred to the as the…

Additional Info

  • Constellation Sagittarius
  • Right Ascension 18h 17m
  • Declination −18° 29′
  • Distance (Lightyears) 10,000
  • Telescope Orion ED80cft Refractor
  • Camera ZWO ASI071 OSC cmos
Monday, 27 April 2020 15:43

Messier 44

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Messier 44, or sometimes called the Beehive, is a open cluster located in the constellation of Cancer. At around 600 light years away, it is one of the closest open clusters to us along with the Pleiades and Hyades. M44…

Additional Info

  • Constellation Cancer
  • Right Ascension 08h 40.4m
  • Declination 19° 59′
  • Distance (Lightyears) 577
  • Telescope Orion ED80cft Refractor
  • Camera ZWO ASI071 OSC cmos
Thursday, 20 February 2020 16:10

NGC 2395

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NGC 2395 A loose scattered open cluster located in Gemini about 1600 light years away.

Additional Info

  • Constellation Gemini
  • Right Ascension 07 27 12
  • Declination +13 36 30
  • Distance (Lightyears) 1,600
  • Telescope Explore Scientific 127 Refractor
  • Camera ZWO 1600MM Mono cmos
Wednesday, 05 February 2020 14:01

NGC 1027

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NGC 1027, an open cluster located in Cassiopeia located 3,100 light years away, between the Heart and the Soul nebulae , but not associated with them (7,500ly distance), as is the bright star near the center (179ly distance).

Additional Info

  • Constellation Cassiopeia
  • Right Ascension 02h 42m 43s
  • Declination +61° 38′ 00″
  • Distance (Lightyears) 3,100
  • Telescope Explore Scientific 127 Refractor
  • Camera ZWO 1600MM Mono cmos
Tuesday, 21 January 2020 15:11

NGC 436

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NGC 436 is a small open cluster located in Cassiopeia, not far away from the more famous Owl or E.T. Cluster. Discovered by William Herschel in 1787.

Additional Info

  • Constellation Cassiopeia
  • Right Ascension 01h 15m 58.0s
  • Declination +58° 48′ 42″
  • Distance (Lightyears) 9,800
  • Telescope GSO 254mm RC
  • Camera ZWO ASI071 OSC cmos
Friday, 20 December 2019 12:48

NGC 381

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NGC 381 is an open cluster located in Cassiopeia, somewhat difficult to make out due the the large number of stars visible in this area of the sky. Its estimated age is around 300 million years.

Additional Info

  • Constellation Cassiopeia
  • Right Ascension 01h 08m 19.9s
  • Declination +61° 35′ 02″
  • Distance (Lightyears) 3,000
  • Telescope Explore Scientific 127 Refractor
  • Camera ZWO 1600MM Mono cmos
Friday, 06 December 2019 11:41

NGC 654

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NGC 654 is a open cluster located in Cassiopeia. A relative young cluster with around 80 members. A hite of a dust lane can be seen to the lower right of the cluster, and some of the outer members show…

Additional Info

  • Constellation Cassiopeia
  • Right Ascension 01h 44m 00s
  • Declination +61° 53′ 06″
  • Distance (Lightyears) 7,800
  • Telescope Explore Scientific 127 Refractor
  • Camera ZWO 1600MM Mono cmos
Friday, 01 November 2019 21:10

Messier 103

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It is an open cluster located in the constellation of Cassiopeia. It is a small and remote cluster at a distance of about 10,000 light years and contains around 100 members. It has an estimated age of around 25 million…

Additional Info

  • Constellation Cassiopeia
  • Right Ascension 01h 33.2m
  • Declination +60° 42′
  • Distance (Lightyears) 10,000
  • Telescope Explore Scientific 127 Refractor
  • Camera ZWO 1600MM Mono cmos
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