{"id":98,"date":"2019-01-23T20:49:08","date_gmt":"2019-01-24T02:49:08","guid":{"rendered":"http:\/\/wp.jmhastronomy.com\/?page_id=98"},"modified":"2019-01-23T20:49:08","modified_gmt":"2019-01-24T02:49:08","slug":"globular-clusters","status":"publish","type":"page","link":"https:\/\/wp.jmhastronomy.com\/?page_id=98","title":{"rendered":"Globular Clusters"},"content":{"rendered":"\n
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Hercules Cluster<\/strong>

Taken using the Open University’s PIRATE telescope

Designations:<\/strong>
\u00a0\u00a0\u00a0\u00a0\u2022 Common Name:<\/strong> Hercules Cluster
\u00a0\u00a0\u00a0\u00a0\u2022 Messier:<\/strong> M13
\u00a0\u00a0\u00a0\u00a0\u2022 New General Catalogue:<\/strong> NGC 6205
\u00a0\u00a0\u00a0\u00a0\u2022 Other:<\/strong> Keystone Cluster
Telescope:<\/strong> Unknown
Camera:<\/strong> Unknown
Object Type:<\/strong> Globular Cluster
Distance:<\/strong> 22.2 kly
Constellation:<\/strong> Hercules
Right Ascension:<\/strong> 16 Hrs, 41′, 41.24″
Declination:<\/strong> 36\u00b0, 27′, 35.50″
Magnitude:<\/strong> 5.80
Taken from the island of Tenerife in the Canary Islands<\/em>
(Image ID: 235)<\/figcaption><\/figure>\n\n\n\n
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Messier 13: the Hercules Cluster<\/strong>

Taken using the Open Univerisity’s COAST telescope

Designations:<\/strong>
\u00a0\u00a0\u00a0\u00a0\u2022 Common Name:<\/strong> Hercules Cluster
\u00a0\u00a0\u00a0\u00a0\u2022 Messier:<\/strong> M13
\u00a0\u00a0\u00a0\u00a0\u2022 New General Catalogue:<\/strong> NGC 6205
\u00a0\u00a0\u00a0\u00a0\u2022 Other:<\/strong> Keystone Cluster
Telescope:<\/strong> Unknown
Camera:<\/strong> Unknown
Object Type:<\/strong> Globular Cluster
Distance:<\/strong> 22.2 kly
Constellation:<\/strong> Hercules
Right Ascension:<\/strong> 16 Hrs, 41′, 41.24″
Declination:<\/strong> 36\u00b0, 27′, 35.50″
Magnitude:<\/strong> 5.80
Taken from the island of Tenerife in the Canary Islands.<\/em>
(Image ID: 234)<\/figcaption><\/figure>\n\n\n\n
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Globular Cluster M22<\/strong>

A dense globular in Sagittarius. Low metalicity. One of the few known to contain a planetary nebula.

Designations:<\/strong>
\u00a0\u00a0\u00a0\u00a0\u2022 Common Name:<\/strong> M22
\u00a0\u00a0\u00a0\u00a0\u2022 Messier:<\/strong> M22
\u00a0\u00a0\u00a0\u00a0\u2022 New General Catalogue:<\/strong> NGC 6656
\u00a0\u00a0\u00a0\u00a0\u2022 Other:<\/strong> GCI99
Telescope:<\/strong> BRT Galaxy C14 w\/foc red
Camera:<\/strong> BRT FLI Maxcam CM2-1 E2V CCD47-10
Object Type:<\/strong> Globular Cluster
Distance:<\/strong> 10600.00
Constellation:<\/strong> Sagittarius
Right Ascension:<\/strong> 18 Hrs, 26′, 23.94″
Declination:<\/strong> -23\u00b0, 54′, 17.10″
Magnitude:<\/strong> 5.10
180s each RGB. Tracking was off, causing some streaking. Also, position is off-center.<\/em>
(Image ID: 72)<\/figcaption><\/figure>\n\n\n\n
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M4<\/strong>

Globular Cluster M4, one of my favorite deep-sky objects. Contains some of the oldest known stars in the Milky Way.

Designations:<\/strong>
\u00a0\u00a0\u00a0\u00a0\u2022 Common Name:<\/strong> M4
\u00a0\u00a0\u00a0\u00a0\u2022 Messier:<\/strong> M4
\u00a0\u00a0\u00a0\u00a0\u2022 New General Catalogue:<\/strong> NGC 6121
\u00a0\u00a0\u00a0\u00a0\u2022 Other:<\/strong> n\/a
Telescope:<\/strong> BRT Galaxy C14 w\/foc red
Camera:<\/strong> BRT FLI Microline E2V CCD47-10
Object Type:<\/strong> Globular Cluster
Distance:<\/strong> 7200.00
Constellation:<\/strong> Scorpius
Right Ascension:<\/strong> 16 Hrs, 23′, 35.22″
Declination:<\/strong> -26\u00b0, 31′, 32.70″
Magnitude:<\/strong> 5.90
180s each RGB. Camera is poorly aligned and object is off-center.<\/em>
(Image ID: 71)<\/figcaption><\/figure>\n\n\n\n
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Omega Centauri<\/strong>

Caption To Be Added Later

Designations:<\/strong>
\u00a0\u00a0\u00a0\u00a0\u2022 Common Name:<\/strong> Omega Centauri
\u00a0\u00a0\u00a0\u00a0\u2022 Messier:<\/strong> n\/a
\u00a0\u00a0\u00a0\u00a0\u2022 New General Catalogue:<\/strong> NGC 5139
\u00a0\u00a0\u00a0\u00a0\u2022 Other:<\/strong> Omega Cluster
Telescope:<\/strong> Unknown
Camera:<\/strong> Unknown
Object Type:<\/strong> Planetary Nebula
Distance:<\/strong>
Constellation:<\/strong> Centaurus
Right Ascension:<\/strong> 0 Hrs, 0′, 0.00″
Declination:<\/strong> 0\u00b0, 0′, 0.00″
Magnitude:<\/strong> 0.00
I can no longer recall the details of this image’s capture or processing<\/em>
(Image ID: 56)<\/figcaption><\/figure>\n\n\n\n
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Omega Centauri<\/strong>

Caption To Be Added Later

Designations:<\/strong>
\u00a0\u00a0\u00a0\u00a0\u2022 Common Name:<\/strong> Omega Centauri
\u00a0\u00a0\u00a0\u00a0\u2022 Messier:<\/strong> n\/a
\u00a0\u00a0\u00a0\u00a0\u2022 New General Catalogue:<\/strong> NGC 5139
\u00a0\u00a0\u00a0\u00a0\u2022 Other:<\/strong> Omega Cluster
Telescope:<\/strong> Unknown
Camera:<\/strong> Unknown
Object Type:<\/strong> Planetary Nebula
Distance:<\/strong>
Constellation:<\/strong> Centaurus
Right Ascension:<\/strong> 0 Hrs, 0′, 0.00″
Declination:<\/strong> 0\u00b0, 0′, 0.00″
Magnitude:<\/strong> 0.00
I can no longer recall the details of this image’s capture or processing<\/em>
(Image ID: 55)<\/figcaption><\/figure>\n\n\n\n
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The Hercules Cluster<\/strong>

This is the Hercules Cluster, or Messier 13. It is one of the largest and most visible clusters in the night sky, visible to the naked eye from a good dark location on a clear night.

Designations:<\/strong>
\u00a0\u00a0\u00a0\u00a0\u2022 Common Name:<\/strong> M13
\u00a0\u00a0\u00a0\u00a0\u2022 Messier:<\/strong> M13
\u00a0\u00a0\u00a0\u00a0\u2022 New General Catalogue:<\/strong> NGC 6205
\u00a0\u00a0\u00a0\u00a0\u2022 Other:<\/strong> Keystone Cluster
Telescope:<\/strong> Meade 2080 with focal reducer
Camera:<\/strong> Nikon D5000
Object Type:<\/strong> Globular Cluster
Distance:<\/strong> 22.20
Constellation:<\/strong> Hercules
Right Ascension:<\/strong> 16 Hrs, 41′, 0.00″
Declination:<\/strong> 36\u00b0, 28′, 0.00″
Magnitude:<\/strong> 5.80
Unsure on this one, probably 30 sec multiple stacked images at ISO 3200<\/em>
(Image ID: 7)<\/figcaption><\/figure>\n\n\n\n
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The Hercules Cluster<\/strong>

The Hercules cluster taken on my D5000.

Designations:<\/strong>
\u00a0\u00a0\u00a0\u00a0\u2022 Common Name:<\/strong> M13
\u00a0\u00a0\u00a0\u00a0\u2022 Messier:<\/strong> M13
\u00a0\u00a0\u00a0\u00a0\u2022 New General Catalogue:<\/strong> NGC 6205
\u00a0\u00a0\u00a0\u00a0\u2022 Other:<\/strong> Keystone Cluster
Telescope:<\/strong> Meade 2080 with focal reducer
Camera:<\/strong> Nikon D5000
Object Type:<\/strong> Globular Cluster
Distance:<\/strong> 22.20
Constellation:<\/strong> Hercules
Right Ascension:<\/strong> 16 Hrs, 41′, 42.00″
Declination:<\/strong> 36\u00b0, 27′, 39.00″
Magnitude:<\/strong> 5.80
Multiple stacked frames, probably 30 or 60 sec at ISO 3200.<\/em>
(Image ID: 6)<\/figcaption><\/figure>\n\n\n\n
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Globular Cluster M4<\/strong>

One of my favorite objects, M4, the globular cluster in Scorpius.

Designations:<\/strong>
\u00a0\u00a0\u00a0\u00a0\u2022 Common Name:<\/strong> M4
\u00a0\u00a0\u00a0\u00a0\u2022 Messier:<\/strong> M4
\u00a0\u00a0\u00a0\u00a0\u2022 New General Catalogue:<\/strong> NGC 6121
\u00a0\u00a0\u00a0\u00a0\u2022 Other:<\/strong> Scorpio Cluster
Telescope:<\/strong> Meade 2080 with focal reducer
Camera:<\/strong> Nikon D5000
Object Type:<\/strong> Globular Cluster
Distance:<\/strong> 7.20
Constellation:<\/strong> Scorpius
Right Ascension:<\/strong> 16 Hrs, 23′, 36.00″
Declination:<\/strong> -26\u00b0, 32′, 30.00″
Magnitude:<\/strong> 5.60

(Image ID: 2)<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/wp.jmhastronomy.com\/index.php?rest_route=\/wp\/v2\/pages\/98"}],"collection":[{"href":"https:\/\/wp.jmhastronomy.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wp.jmhastronomy.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wp.jmhastronomy.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.jmhastronomy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=98"}],"version-history":[{"count":1,"href":"https:\/\/wp.jmhastronomy.com\/index.php?rest_route=\/wp\/v2\/pages\/98\/revisions"}],"predecessor-version":[{"id":99,"href":"https:\/\/wp.jmhastronomy.com\/index.php?rest_route=\/wp\/v2\/pages\/98\/revisions\/99"}],"wp:attachment":[{"href":"https:\/\/wp.jmhastronomy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=98"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}