JULY 2017 OBSERVING LIST

26 TELESCOPE OBJECTS

3 PLANETS

Mercury

Saturn

Jupiter


4 GALILEAN MOONS OF JUPITER

Calisto, Europa, Ganymede, Io


2 PLANETARY NEBULAE

M 27 Dumbbell (Vulpecula)

M 57 Ring (Lyra)


4 BRIGHT NEBULAE

M 8 Lagoon (Sagittarius)

M 17 Swan (Sagittarius)


2 DIFFUSE NEBULAE

NGC 6692 Eastern Veil (Cygnus)

NGC 6960 Western Veil (Cygnus)


1 DARK NEBULA

Barnard’s 86 (Sagittarius)


8 GALAXIES

M 81 Bode’s (Ursa Major)

M 82 AKA Cigar (Ursa Major)

M 51 NGC 5195 Whirlpool (Ursa Major)

NGC 5195 Whirlpool companion (Ursa Major)

M 104 Sombrero (Virgo)

Triplet (Leo)


3 GLOBULAR CLUSTERS

Omega Centauri

M 4 (Scorpius)

M 13 (Hercules)


2 MULTIPLE STAR SYSTEMS

Albireo (Cygnus)

Alcor and Mizar (Ursa Major)


3 OPEN STAR CLUSTERS

M 6 Butterfly (Scorpius)

M 7 Ptolemy (Scorpius)

M 17 Wild Duck (Scutum)


BARE EYE OBJECTS

Satellites and Meteors!

Zodiacal Light

                                                    GLOSSARY

FIRST MAGNITUDE STARS - First magnitude stars are the 20 brightest stars visible in the night sky from Planet Earth. Hipparchos, introduced the magnitude scale in the 1st century B.C..

ASTERISMS - An asterism is an informal pattern of stars recognized in the Earth's night sky. It may be part of an official constellation or it may be composed of stars from more than one constellation.

CONSTELLATIONS - A constellation is a specific area of the celestial sphere as defined by the International Astronomical Union (IAU). There are 88 officially recognized constellations, covering the entire sky.

GALAXIES

A galaxy is a gravitationally bound system of starsstellar remnantsinterstellar gasdust, and dark matter The word galaxy is derived from the Greek galaxias (γαλαξίας), literally "milky," a reference to The Milky Way. Galaxies range in size from dwarfs with just a few thousand stars to giants with one hundred trillion stars, each orbiting their galaxy's own center of mass.

NEBULAE

A nebula is a cloud formed of gas and dust from an exploded star. New star clusters form from the clouds of gas and dust, and these illuminate the cloud to form the visible nebula.

PLANETARY NEBULAE

A planetary nebula is an emission nebula consisting of an expanding glowing shell of ionized gas ejected from old red giant stars late in their lives. The shells of gas are illuminated by a white dwarf carbon star that collapsed in less than millionth of a second.

 GLOBULAR STAR CLUSTERS

A globular cluster is a spherical collection of stars that orbits a galactic core as a satellite of a parent galaxy. Globular clusters are very tightly bound by gravity, which gives them their spherical shapes and relatively high stellar densities toward their centers.

OPEN STAR CLUSTERS

An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age.

MULTIPLE STAR SYSTEMS

A multiple star is a star system consists of two or more stars orbiting around their common center.


JULY 2017 SKY MAP


38 LASER POINTER OBJECTS


12 ASTERISMS

Big Dipper (Ursa Major)

Butterfly (Hercules)

Diamond (Virgo)

Fishhook (Scorpius)

Guardian of the Pole (Ursa Minor)

Job's Coffin (Delphinus)

Keystone (Hercules)

Kite or Ice Cream Cone (Bootes)

Little Dipper (Ursa Minor)

Sickle (Leo)

Summer Triangle (Vega, Deneb, Altair)

Teapot (Sagittarius)


20 CONSTELLATIONS

Aquila (Eagle)
Bootes (Herdsman)
Capricorn (Sea Goat) rising
Cepheus (King of Ethiopia)
Corona Australis (Southern Crown)
Corona Borealis (Northern Crown)
Corvus (Crow)

Cygnus (Swan)
Delphinus (Dolphin)
Draco (Dragon)
Hercules (Hero)
Leo (Lion)
Libra (Scales)
Lyra (Harp)
Sagitta (Arrow)
Sagittarius (Archer)
Scorpius (Scorpion)
Ursa Major (Big Bear)
Ursa Minor (Little Bear)
Virgo (Maiden)


7 FIRST MAGNITUDE STARS

Altair (Aquila (Eagle)

Antares (Scorpius)

Arcturus (Bootes)

Deneb (Cygnus)

Regulus (Leo)

Spica (Virgo)

Vega (Lyra)