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S C U T U M

 

ori.gif (1448 bytes) Mythology and history

Mythology of Scutum

     The constellation of Scutum is a modern constellation that dates from century XVII. It was invented by Johannes Hevelius when it included it in his catalogue in 1690. The true name of the constellation is "Shield of Sobieski".

     John III Sobieski (1624-1696) was the last great king of Poland and Lituania that was the true one whips of the Turks to whom it won in thousands and one battles culminating with the expulsion of these of Vienna in 1683, which also supposed the expulsion of the Turks of Europe and seven years later, Hevelius commemorating such feats, decided to create a constellation with the name of "Shield of Sobieski".

 

ori.gif (1448 bytes) Characteristics

        Scutum is a smallest constellation located in the celestial equator of 100º square in form of perfect rectangle. The parallel of 10º of South latitude crosses the constellation by half, is observable in both hemispheres during the months of  March to September. Is something difficult to locate it since it is not formed by shining stars, however, by the northeast sector crosses the equator of our galaxy and therefore, we observed with a small telescope a great amount of weak stars, stellar and globular cluster. It turns out magnificent to contemplate the constellation with prisms binocular since we can see the stellar wealth of our galaxy surrounds already of the nucleus of the Milky Route.

        Scutum limits the north with the constellations of Aquila and Serpens Cauda, to the east with Serpens Tail, the south with the constellation of Sagittarius and to the west with Aquila and Sagittarius, therefore, Scutum is fitted between three constellations, Aquila, Serpens Cauda and Sagittarius.

 The constellation of Scutum I located the 29 to it of June of 1984 in the Majorcan locality of Inca, had then, 17 years.

Constelación de Scutum

 

Main stars

       Alpha, a; with a magnitude of 3.85 it is of orange color or spectral type K, is to 174 years light and it reveals to us that the star is a giant 68 times more luminous than the Sun is located in the center of the constellation.

      Beta, b; with a magnitude of 4.23, light is to 690 years, its color is yellow of G type, is also a giant 790 times more luminous than our Sun is closely together located to the north of the constellation of the constellation of the eagle, Aquila.

    Gamma, g; it stars white, of phantom To, whose magnitude is of 4.69 which light of us is closely together to 89años located to the south of the constellation of Sagittarius.

 

Other objects

           M 11; precious stellar cluster of magnitude 5.80 located to 5,600 years light of us, has an angular diameter of 13' of arc and a considered age of 220 million years, is formed by 500 stars of novena to onceava magnitude.

           M 26: precious stellar cluster of magnitude 8.0, of 14' of angular diameter located to 5,000 years light of us, has a considered age of 89 million years, form 15 stars from 12 to magnitude.

 

ori.gif (1448 bytes) Observations by telescope

D O U B L E

Nom: S 2325 R.A.: 18h.29m.

Dec: -10º50'

Mag: 5.8,9.2 Sep.: 12" P.A.: 257º Nat: f Spec.: ?, ?
AOC: 132 DSC: 98 D.D.S.: 17-June-1984

sigma2325

 

            NOTE: One is in a rich zone. There is a remarkable difference of brightness between the components, are separated slightly, is unfolded without difficulty with the eyeglass of 50x, profit not to identify the colors.

 

C L U S T E R

NGC:6649

M: -- R.A.: 18h.31m. Dec: -10º26'
Mag: 8.8 Dim: 8' AOC: 133 CNAO: 35
D.D.S.: 17-June-1984  

ngc6649

           

            NOTE: One is in a very rich zone. A small spot in form of comet tail is observed as, it is a difficult object of identification, and indecisive with a R-90mm.

 

C L U S T E R

NGC: 6664

M: -- R.A.: 18h.34m. Dec: -08º36'
Mag: 8.9 Dim: 18' AOC: 134 CNAO: 36
D.D.S.: 17-June-1984  

ngc6664

 

            NOTE: One is in a rich zone to 40' to the east of a Scuti. It is formed by ten stars of similar magnitude, oriented with angles of position of 180º, has a slight concentration towards the center.

 

D O U B L E

Nom: S 2306 R.A.: 18h.19m.

Dec: -15º07'

Mag: 7.2, 7.4 Sep.: 11" P.A.: 220º Nat: ? Spec.: F, A
AOC: 162 DSC: 109 D.D.S.: 29-June-1984

sigma2306

 

           NOTE: One is in a very rich zone. One is one very pretty double of similarity brightness and slight separation that causes that it is one pretty double. It is unfolded without difficulty with the eyeglass of 50 increases.

 

D O U B L E

Nom: S 2313 R.A.: 18h.22m.

Dec: -06º38'

Mag: 7.3, 8.8 Sep.: 6" P.A.: 195º Nat: f Spec.: A, B
AOC: 163 DSC: 110 D.D.S.: 27-June-1984

sigma2313

 

           NOTE: One is in a rich zone. There is a slight difference of brightness between the components, are something together. It is unfolded without difficulty with the eyeglass of 50 increases. The main one I see secondary white it and the blue one.

 

C L U S T E R

NGC: 6683

M: -- R.A.: 18h.39m. Dec: -06º20'
Mag: 9.5 Dim: 2' AOC: 169 CNAO: 57
D.D.S.: 29-June-1984  

ngc6683

 

            NOTE: One is in a rich zone. A circular and indecisive, suggestive nubecita is observed and with a strong concentration towards the center.

 

C L U S T E R

NGC:6694

M: 26 R.A.: 18h.42m. Dec: -09º26'
Mag: 9.3 Dim: 9' AOC: 170 CNAO: 58
D.D.S.: 29-June-1984  

m26

 

            NOTE: One is located to 45' to the east of d Scuti. A nubecita with a strong concentration is observed towards the center and indecisive with a R-90mm. Although in her four stars are observed that define the nebula.

 

C L U S T E R

NGC: 6705

M: 11 R.A.: 18h.18m. Dec: -06º20'
Mag: 6.5 Dim: 12' AOC: 171 CNAO: 59
D.D.S.: 29-June-1984  

m11

 

            NOTE: One is in a rich zone. It is a precious plagued countless star cloud. It has form of fan with an important entrance of 5' of depth that characterizes to him with form of comecocos.

 

C L U S T E R

NGC: 6704

M: -- R.A.: 18h.48m. Dec: -05º16'
Mag: 9.5 Dim: 6' AOC: 172 CNAO: 60
D.D.S.: 29-June-1984  

ngc6704

 

            NOTE: One is approximately in a rich zone to 1º to the north of M11. A small nubecita of 6' is observed. It has a strong concentration towards the center, is observed indecisive.

 

GLOBULAR CLUSTER

NGC:6712

M: --

R.A.: 18h.50m.

Dec: -08º46'

Mag: 9.2 Dim: 3' AOC: 173 CNAO: 61
D.D.S.: 30-June-1984  

ngc6712

 

            NOTE: One is in a rich zone. It is a globular cluster with a strong gradient and two zones of brightness different corresponding to the nucleus and the periphery. One is a precious globular cluster.

 

D O U B L E

Nom: S 2373 R.A.: 18h.43m.

Dec: -10º33'

Mag: 7.2,8.3 Sep.: 4.8" P.A.: 337º Nat: f Spec.: G, K
AOC: 373 DSC: 264 D.D.S.: 22h.30m.(UT); 12-Jul.-1985

sigma2373

 

              NOTE: One is in a rich zone. There is a remarkable difference of brightness between the components, are something tight, although it is unfolded without difficulty with the eyeglass of 100x. The main one is yellow and the secondary one I see it orange.

D O U B L E

Nom: Hr 115 R.A.: 19h.55m.

Dec: -09º12'

Mag: 7.4, 8.6 Sep.: 14" P.A.: 119º Nat: f Spec.: A, A
AOC: 408 DSC: 293 D.D.S.: 20h.03m.(UT); 12-Oct.-1985

hr115

       

            NOTE: One is in a very rich zone. There is a slight difference of brightness between the components, are something separated, both components I see white them, is unfolded without difficulty with the eyeglass of 50x.

 

ori.gif (1448 bytes) Other constellations

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