Sky & Deep Sky

28 Major Constellations Named Stars The Nick Strobel's Tutorial Tables

25 Lesser Constellations Southern Sky Messier Tables The Greek Alphabet

1) SAGITTARIUS 2) SCORPIUS 3) LYRA 4) CYGNUS 5) AQUILA 6) OPHIUCUS

SAGITTARIUS - the Archer - Sgr

Date & Time

Angular separation Al Nasl - Albaldah = 17°

Click on a star name for more informations         Name Magn. Dist. (L.Y.) Temp.°K C. Type Greek Const. Kaus Australis 1.85 76 11.200   B9 Epsilon Sgr Nunki 2.02 170 23.200   B2 Sigma Sgr Ascella 2.60 74 9.360   A2 Zeta Sgr Kaus Media 2.70 140 4.440   K3 Delta Sgr Kaus Borealis 2.81 62 4.680   K1 Lambda Sgr Albaldah 2.89 480 7.080   F2 Pi Sgr Al Nasl 2.99 121 4.800   K0 Gamma Sgr Manubrium 3.77 74 4.940   G9 Omicron Sgr Polis 3.86 272 12.400   B8 Mu Sgr Rukbat 3.97 250 12.400   B8 Alpha Sgr Arkab Prior 4.01 270 11.200   B9 Beta1 Sgr Arkab Posterior 4.29 109 7.080   F2 Beta2 Sgr Terebellum 4.70 53 5.500   G5 Omega Sgr Ain Al Rami 4.83 109 4.560   K2 Nu 1 Sgr

Lagoon Nebula M8 - NGC6523 The irregular distribution of stars in this part of thr sky is due mainly to clouds of dust that dim the light of vast clouds of stars that make Sagittarius one of the brightest parts of the Milky Way. The Lagoon Nebula is an illuminated part of such a dark cloud and it reveals the dust as dark lines and globules silhouetted against the luminous gas. Within the nebula is the young star cluster NGC 6350.  (Photograph by David Malin)

Trifid Nebula M20 - NGC6514 Measuring some forty light years across, the Trifid Nebula contains enough gas to make many thousands of stars. Within it a number of young hot stars have already formed. They cause the surrounding gas, mostly hydrogen, to emit its characteristic red light. However, one side of the nebula contains many dust grains that reflect the star's light, producing a bluish color. In some parts of the nebula the dust grains are so numerous that they hide the glowing gas ,producing three dark lanes, which give this beautiful object its name.  (Photograph by David Malin)

NGC6559 Bright Nebula Magn. 9.8

Omega Nebula or
Swan Nebula or
Horseshoe Nebula
M17 - NGC6618
Magn. 7.5
Dist. 5.200 l.y.

SCORPIUS - the Scorpion - Sco

Date & Time

Angular separation Dschubba - Shaula = 25°

Click on a star name for more informations         Name Magn. Dist. (L.Y.) Temp.°K C. Type Greek Const. Antares 0.96 330 3.280   M1 Alpha Sco Shaula 1.63 330 23.200   B2 Lambda Sco Sargas 1.87 200 7.240   F1 Theta Sco Dschubba 2.32 550 28.000   B0 Delta Sco Graffias 2.62 820 25.600   B1 Beta1 Sco Lesath 2.69 460 23.200   B2 Upsilon Sco Alniyat 2.82 780 28.000   B0 Tau Sco Alniyat 2.89 580 25.600   B1 Sigma Sco Rho 4.63 395 22.400   B2 Rho Oph Al Acrab 5.07 85 6.600   F5 Xi Sco Jabbah 6.3 550 12.400   B8 Nu Sco

M 4 - NGC 6121 Globular Cluster Magn. 5.9 Dist. 6.800 l.y. M4 is a globular cluster visible in dark skies about one degree west of the bright star Antares. M4 is perhaps the closest globular cluster at 6.800 light years, meaning that we see M4 only as it was 6.800 years ago, near the dawn of recorded human history. Although containing hundreds of thousands of stars and spanning over 50 light-years, M4 is one of the smallest and sparsest globular clusters known. A particularly unusual aspect for a globular cluster is M4's central bar of stars. M4 is one of the oldest objects for which astronomers can estimate age directly. Cluster white dwarfs appear to be at least nine billion years old - so ancient they limit the youth of our entire universe.

M 80 - NGC 6093 Magn. 7.2 - Dist. 27.100 l.y.

	The dusty region between Ophiucus and Scorpius contains some of the most colorful and spectacular nebulae ever photographed. The upper part of the picture is filled with the bluish glow of reflected light from hot stars near a huge, cool cloud of dust and gas where stars are born.
Dominating the lower half of ther picture is an over-exposed image of the red supergiant star Antares, a star that is steadily shedding material from its distended surface as it nears the end of its life. These solid particles reflect Antares' light and hide it in a nebula of its own making. Finally, partly surrounding Sigma Scorpii at the right of the picture is a red emission nebula, completing the most comprehensive collection of nebular types ever seen in one photograph. (by David Malin - Anglo-Australian Telescope).

M7 - NGC6475 Open Cluster Magn. 3.4 80 Stars Dist. 780 l.y. M6 - NGC6405 OpenCluster Magn. 5.3 80 Stars from 6th magn. Dist. 1960 l.y. The Butterfly Cluster

NGC6231 Open Cluster Magn. 2.6 40 Stars Dist. 5.900 l.y.

M 7

M 6 To some, the outline of the open cluster of stars M6 resembles a butterfly. Like other open clusters, M6 is composed predominantly of young blue stars, although the brightest star is nearly orange. M6 is estimated to be about 100 million years old. Determining the distance to clusters like M6 helps astronomers calibrate the distance scale of the universe.

LYRA - the Lyre - Lyr

Date & Time

Angular separation Vega - Sulaphat = 8°	Click on a star name for more informations         Name Magn. Dist. (L.Y.) Temp.°K C. Type Greek Const. Vega 0.03 94 10.000   A0 Alpha Lyr Sulaphat 3.24 190 11.200   B9 Gamma Lyr Sheliak 3.45 150 12.400   B8 Beta Lyr Aladfar 4.39 1630 23.200   B2 Eta Lyr Alathfar 5.12 820 9.040   A3 Mu Lyr
	The Ring Nebula - M57 NGC 6720 Planetary Nebula Magn. 9.7 - Dist. 1960 l.y. 14.8 magn. central star

CYGNUS - the Swan - Cyg

Date & Time

Angular separation Deneb - Albireo = 22°	Click on a star name for more informations         Name Magn. Dist. (L.Y.) Temp.°K C. Type Greek Const. Deneb 1.25 1480 9.360   A2 Alpha Cyg Sadr 2.20 800 6.240   F8 Gamma Cyg Gienah 2.46 72 4.800   K0 Epsilon Cyg Albireo 3.08 380 4.440   K3 Beta Cyg Azelfafage 4.67 610 20.800   B3 Pi 1 Cyg Ruchba 5.44 - 3.160   M2 Omega 2 Cyg
	M39 NGC 7092 Open Cluster Magn. 5.0 - Dist. 880 l.y.

NGC 7000 The North America Nebula Bright Nebula Magn. 7.0 - Dist. 2.300 l.y.	NGC6960 - The Veil Nebula Bright Nebula Filamentary, the Cygnus Loop Magn. 8.0 - Dist. 2.600 l.y. The large loop of gas was ejected about 30-40.000 years ago from a supernova, a star's final death throes. The loop is still expanding at a rate of 6 arc seconds every hundred years.

Sadr (Gamma Cygni) is the central star in Cygnus, the Swan, or Northern Cross, and is surrounded by nebulosity (IC 1318). In the bottom of the picture we see M29, open cluster (NGC6913) magn. 6.6, dist. 4.100 l.y., about 50 stars from 9th magnitude. Other objects in the pictures are NGC6910, open cluster visible in both pictures, magn. 7.4, dist. 5.400 l.y., 50 stars and Cr 419, open cluster magn. 5.4.

AQUILA - the Eagle - Aql

Date & Time

Angular separation Altair - Al Thalimaim = 18°

Click on a star name for more informations         Name Magn. Dist. (L.Y.) Temp.°K C. Type Greek Const. Altair 0.77 16 8.000   A7 Alpha Aql Tarazed 2.72 269 4.440   K3 Gamma Aql Deneb el Okab Aus. 2.99 110 10.000   A0 Zeta Aql Al Thalimaim 3.44 120 11.200   B9 Lambda Aql Alshain 3.71 42 5.080   G8 Beta Aql Deneb el Okab Bor. 4.02 116 4.680   K1 Epsilon Aql Al Thalimaim 4.36 820 16.000   B5 Iota Aql

OPHIUCUS - the Serpant Bearer - Oph

Date & Time

Angular separation Ras Alhague - Sabik = 29°	Click on a star name for more informations         Name Magn. Dist. (L.Y.) Temp.°K C. Type Greek Const. Ras Alhague 2.08 49 8.400   A5 Alpha Oph Sabik 2.43 63 9.360   A2 Eta Oph Fieht 2.56 530 30.400   O9 Zeta Oph Yed Prior 2.74 170 3.400   M0 Delta Oph Kelb Alrai 2.77 110 4.560   K2 Beta Oph Yed Posterior 3.24 108 4.940   G9 Epsilon Oph Marfic 3.82 330 10.000   A0 Lambda Oph
	M10 - NGC6254
	Globular Cluster Magn. 6.6 Dist. 14.300 l.y.

Constellation pictures are modified screen displaies of Voyager II™ version 2.0 for the Macintosh™, the Astronomy Program of Carina Software, 12919 Alcosta Blvd Suite #7, San Ramon, CA 94583

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