August Messier Catalog List

This Messier Catalog list is the copyright of Barbara Wilson who has allowed it to be posted on this website.  No changes, credits or prohibited use of this list is authorized without first contacting the author Barbara Wilson. bwilson2@ix.netcom.com

August

 

Messier Number

NGC #

Constellation

Size

Magnitude

Date on Meridian

Type

RA

(h/m)

Dec

(deg/')

 

M14

6402

Oph

3

8

8/5

GC

17 37.6

-3 15

 

This globular lies in a sparse star field.  Easy in 11x80 binoculars. 

 

M6

6405

Sco

15'

5

8/5

OC

17 40.1

-34 49

                    A fine open cluster, especially from Texas where we can see it a little higher in the sky than most northern observers.  Look at it's shape as it is known as the Butterfly Cluster.  Easy in binoculars under suburban skies. 

M7

6475

Sco

80

5

8/11

OC

17 53.9

-34 49

               A brilliant and extensive open cluster low in the sky which is seen with the naked eye on clear nights here in Texas.  Lovely in binoculars. 

M23

6494

Sgr

27'

8

8/12

OC

17 56.8

-19 01

                      A fine open cluster for low power.  There are at least 120 stars arranged in curved lines.  The 6th magnitude star on its western edge will help you find this beautiful cluster. 

M20

6514

Sgr

28'

5

8/13

DfN/OC

18 02.3

-23 02

                    The Triffid Nebula, named for the three dark rifts which meet at the center of this cloud of gas.  Beautiful at high power, but the rifts are difficult in small apertures. 

M8

6523

Sgr

60'x35'

5

8/13

DfN/OC

18 03.1

-24 23

                     The Lagoon Nebula.  A large irregular naked eye nebulosity under dark skies, which is easy to locate.  Use lower powers for best effect, then higher powers for the dark patches in this extended diffuse nebula. 

M21

6531

Sgr

13'

7

8/14

OC

18 04.6

-22 30

           This open cluster is surrounded by more spectacular objects, so is neglected by most amateurs, but well worth attention. 

M24

6603

Sgr

5.0'

11.5

8/17

OC

18 18.4

-18 25

Bright but small, this open cluster is hard to find since it lies in a dense star field. 

M16

6611

Ser

7'

6.5

8/17

DfN/OC

18 18.8

-13 47

                 A bright open cluster of about 100 stars, but lies in a dense star field like M24.  It lies 3º north of the Swan (Omega) Nebula. is in a vast diffuse nebula which is enhanced visually with a nebula filter.  Robert Burnham calls this the "Star Queen" Nebula, and is also named the Eagle Nebula in some observing guides.  Large telescopes reveal it's wonderful dark patches. 

M18

6613

Sgr

9'

8.0

8/18

OC

18 19.9

-17 08

A small galactic cluster about 1 degree from the Swan Nebula.  Notice this small group of stars shape. 

M17

6618

Sgr

11'

7.0

8/18

DfN/OC

18 20.8

-16 11

                     The Swan or Omega Nebula.  Beautiful, brilliant, wonderful even in small apertures.  Use your highest powers for detail and wait for the moment of best seeing.  Try a nebula filter as well.

M28

6626

Sgr

11'

8.5

8/19

GC

18 24.5

-24 52

                   This globular is not a bright object for small scopes due to its obscuration by dust in this part of the Milky Way.  It needs a lot of aperture to be resolved.  A compact and dense globular cluster. 

M69

6637

Sgr

7'

9.0

8/20

GC

18 34.4

-32 21

              A small globular below the bowl of the teapot of Sagittarius, which needs a large scope to achieve resolution.  There is a 9th magnitude star to the NNW, about 4' away.  It should appear hazy in smaller scopes.  A challenge in large binoculars. 

M25

IC 4725

Sgr

40'

4.9

8/21

OC

18 28.8

-19 17

A sprawling, scattered open cluster of about 50 stars.  It contains the cepheid variable U Sagittarii. 

M22

6656

Sgr

24'

6.5

8/22

GC

18 36.4

-29 54

                    One of the six finest globular clusters in the Northern sky, and only outranked by M13, and possibly M5.  A great globular cluster of hundreds of thousands of stars. 

M70

6681

Sgr

8'

9.0

8/22

GC

18 43.2

-32 18

A compact globular with a bright condensed center.  Does it seem similar to M69? 

M26

6694

Sct

15'

9.5

8/23

OC

18 45.2

-9 24

A small cluster in a rich Milky Way field, contains about 70 stars, but 25 are generally seen in 6” to 8” scopes. 

M11

6705

Sct

14'

7.0

8/24

OC

18 51.1

-6 16

         A breathtaking galactic cluster for large telescopes made up of hundreds of stars.  Visible to the naked eye under dark skies.  A              wonderful open cluster for a 6” scope, one of the richest and most compact of the open clusters and described by Admiral Smyth as resembling a flight of wild ducks.  My personal favorite open cluster of all. 

M57

6720

Lyr

85"x61"

9.5

8/25

PN

18 53.6

+33 02

                  The lovely Ring Nebula in Lyra.  You may not be able to see the central star unless you have a 12" or more, but you can see the doughnut in any instrument.  Look for the illumination in the center of the ring. 

M54

6715

Sgr

9'

8.5

8/24

GC

18 55.1

-30 29

                     A small globular 1.5º WSW of the southernmost star in the bowl of the teapot.  Bright and strongly compressed.  Compare with M69 and M22 to see an interesting variation of size and brightness of globular clusters in the same region of sky. 

M56

6779

Lyr

7'

9.5

8/30

GC

19 16.6

+30 11

                     Very overshadowed by it's famous neighbor, the Ring Nebula, this is a fine little globular.  Easy to find halfway between Beta Cygni and Gamma Lyrae.  A 6” will resolve its edges. 

 

Date on Meridian = Date each subsequent object is on your meridian at 10 PM local time.


 

Key to abbreviations: GAL= Galaxy PLN= Planetary Nebula Glob = Globular Cluster RA= Right Ascension DEC= Declination Date on Meridian= Date each object is on your meridian at 10 PM local time. Compiled for the Houston Astronomical Society's Novice Group by Barbara Wilson.