HOME

 

SCORPIO

 

(Abbreviation: Sco)

 

Alternatively, and probably more correctly, known as Scorpius.  Mythologically it is usually associated with the scorpion, which Juno caused to attack and kill the great hunter Orion.  Note that Orion and Scorpio are now on opposite sides of the sky – placed there, it is said, so that the creature could do Orion no further damage!

Scorpio is one of the most magnificent of all constellations, and one of the few, which gives at least a vague impression of the creature it is meant to represent.  Antares dominates it. But the whole area is exceptionally rich.  The ‘sting’, which includes Shaula –only just below first magnitude –, is to all intents and purposes invisible from England.  There are 20 stars above the fourth magnitude.  Antares itself is very slightly variable (range 0.86 – 1.02).

 

BRIGHTEST STAR

 

STAR

R.A.

DEC

MAG.

ABS. MAG.

SPEC

DIST.PC

H

M

S

o

1    b

15

50

58.6

-25

45

05

4.64

-1.7

B3

170

2    A

15

53

36.6

-25

19

38

4.59

-2.1

B2.5

220

5    r

15

56

53.0

-29

12

50

3.88

-2.5

B2

190

6    p

15

58

51.0

-26

06

50

2.89

-3.5

B1

190

7    d

16

00

19.9

-22

37

18

2.32

-4.1

BO

170  DSCHUBBA

      x

16

04

22.0

-11

22

24

4.16

2.2

F6

26

8    b

16

05

26.1

-19

48

19

2.64

-3.7

BO.5+B2

250 GRAFFIAS

9    w¹

16

06

48.3

-20

40

09

3.96

-3.5

B1

250 JABHAT AL AKRAB

10  w²

16

07

24.2

-20

52

07

4.32

0.4

gG2

53 

14  n

16

11

59.6

-19

27

38

4.00

0.0,-2.8

A0+B2

170  JABBAH

13 

16

12

18.1

-27

55

35

4.58

-2.1

B2.5

220

19  o

16

20

38.0

-24

10

10

4.55

-2.1

A5

92

20  s

16

21

11.2

-25

35

34

2.89v

-4.4

B1

180  ALNIYAT

21  a

16

29

24.3

-26

25

55

0.96v

-4.7

M1

100  ANTARES

      N

16

31

22.8

-34

42

15

4.23

-2.5

B2

220

23  t

16

35

52.8

-28

12

58

2.82

-4.1

BO

240

      H

16

36

22.4

-35

15

21

4.16

0.6

MO

55

26  e

16

50

09.7

-34

17

36

2.29

-0.1

K2

20  WEI

      m¹

16

51

52.1

-38

02

51

3.04

-3.0

B1.5

160

      m²

16

52

20.0

-38

01

03

3.57

-3.0

B2

210

z¹)            z²)

16

16

53

59.6

-42

21

44

4.73

-6.7

B1.5

780

54

34.9

-42

21

41

3.62

-0.3

K5

50

      h

17

12

09.?

-43

14

21

3.33

0.6

F2

21

34  u

17

30

45.6

-37

17

45

2.69

-5.7

B3

480  LESATH

35  l

17

33

36.4

-37

06

14

1.63

-3.0

B2

84  SHAULA

      Q

17

36

32.6

-38

38

07

4.29

0.2

gKO

58

      q

17

37

19.0

-42

59

52

1.87

-5.6

FO

280  SARGAS

      k

17

42

29.0

-39

01

48

2.41

-3.0

B2

120  GIRTAB

      i¹

17

47

34.9

-40

07

37

3.03

-8.4

F2

1700

      G

17

49

51.3

-37

02

36

3.21

-0.1

K2

46

 

DOUBLES

 

STAR

R.A.

DEC

MAGS.

P.A.

DIST.”

H

M

S

o

      x

16

04

22.0

-11

22

24

4.9,4.9

var

BINARY,45.7 YEARS

8    b

16

05

26.1

-19

48

19

2.9,5.1

023

A IS DOUBLE; MAG. 9.7, DIST 0”.8

20  s

16

21

11.2

-25

35

34

2.9,9.0

273

 

14  n

16

11

59.6

-19

27

38

4.3,6.5

337

BOTH DOUBLE

21  a

16

29

24.3

-26

25

55

1.0,6.5

274

FIXED. RED AND GREEN B IS  A RADIO SOURCE

 

VARIABLES

 

STAR

R.A.

DEC

RANGE

PEROID,D

SPEC

TYPE

H

M

o

SS

16

52.0

-32

33

7.5—9.5

-

K

IRREGULAR

RS

16

52.0

-45

01

6.2---13.0

320

M

MIRA

RR

16

53.4

-30

30

-5.1---12.3

279

M

MIRA

RV

16

55.1

-33

32

7.2---8.4

6.06

F-G

CEPHEID

RT

16

00.2

-36

51

7.0---14.6

448

M

MIRA

AH

17

08.0

-32

16

7.1---11

714

M

SEMI-REGULAR

FV

17

10.5

-32

48

7.4---8.6

5.72

B9

ECLIPSING

RU

17

38.8

-43

44

7.8---13.7

368

M

MIRA

V.636

17

19.1

-43

34

6.3---7.0

6.80

G

CEPHEID

s  IS VERY SLIGHTLY VARIABLE (2.82-2.90)

s  IS A b-CANIS MAJORIS VARIABLE, RANGE 0m.1 PEROID 0.25 DAYS

m¹ IS A b-LYRÆ ECLIPSING VARIABLE, RANGE 0m.1 , PERIOD 1.44 DAYS

a IS VERY SLIGHTLY VARIABLE; BELOW 0m.2; SEMI-REGULAR ± 1730 d.

 

 

CLUSTERS AND NEBULÆ

 

OBJECT

R.A.

DEC

TYPE

NOTES

H

M

o

NGC 6093 M.80

16

14.1

-22

52

GLOBULA

MAG. 7.7

NGC 6121 M.4

16

20.6

-26

34

GLOBULA

MAG. 6.4

NGC 6124

16

22.2

-40

35

OPEN CLUSTER

MAG. 6. ABOUT 120 STARS

NGC 6153

16

28.0

-40

08

PLANETARY

MAG. 11.5

NGC 6242

16

52.2

-39

25

OPEN CLUSTER

MAG. 8. ABOUT 40 STARS

NGC 6259

16

57.1

-44

36

OPEN CLUSTER

MAG. 8.6. ABOUT 100 STARS

NGC 6268

16

58.6

-39

39

OPEN CLUSTER

MAG. 9.5. RATHER SPARSE

NGC 6302

17

10.4

-37

03

PLANETARY

MAG. 11.4

NGC 6302

17

10.5

-37

03

NEBULA

MAG. ‘BUG NEBULA’

NGC 6318

17

14.3

-39

24

OPEN CLUSTER

MAG. 12, BUT CONCENTRATED

NGC 6322

17

15.2

-42

50

OPEN CLUSTER

MAG. 7.0. ABOUT 20 STARS

NGC 6357

17

21.3

-34

07

NEBULA

 

NGC 6405 M.6

17

36.8

-32

11

OPEN CLUSTER

MAG. 5.3. NAKED-EYE SUPERB CLUSTER

NGC 6451

17

47.4

-30

11

OPEN CLUSTER

MAG. 8.3. ABOUT 50 STARS

NGC 6475 M.7

17

50.7

-34

48

OPEN CLUSTER

MAG. 3.2 GLORIOUS. BRILLIANT NAKED-EYE CLUSTER

 

1
Hosted by www.Geocities.ws

1