D Cluster (Collinder 21)
The D Cluster (Collinder 21) is an asterism located in the northern constellation Triangulum. It appears near Mothallah (Alpha Trianguli), one of the three bright… Read More »D Cluster (Collinder 21)
IC 1727
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- Andromeda Constellation
- Antlia Constellation
- Apus Constellation
- Aquarius Constellation
- Aquila Constellation
- Ara Constellation
- Aries Constellation
- Auriga Constellation
- Boötes Constellation
- Caelum Constellation
- Camelopardalis Constellation
- Cancer Constellation
- Canes Venatici Constellation
- Canis Major Constellation
- Canis Minor Constellation
- Capricornus Constellation
- Carina Constellation
- Cassiopeia Constellation
- Centaurus Constellation
- Cepheus Constellation
- Cetus Constellation
- Chamaeleon Constellation
- Circinus Constellation
- Columba Constellation
- Coma Berenices Constellation
- Corona Australis Constellation
- Corona Borealis Constellation
- Corvus Constellation
- Crater Constellation
- Crux Constellation
- Cygnus Constellation
- Delphinus Constellation
- Dorado Constellation
- Draco Constellation
- Equuleus Constellation
- Eridanus Constellation
- Fornax Constellation
- Gemini Constellation
- Grus Constellation
- Hercules Constellation
- Horologium Constellation
- Hydra Constellation
- Hydrus Constellation
- Indus Constellation
- Lacerta Constellation
- Leo Constellation
- Leo Minor Constellation
- Lepus Constellation
- Libra Constellation
- Lupus Constellation
- Lynx Constellation
- Lyra Constellation
- Mensa Constellation
- Microscopium Constellation
- Monoceros Constellation
- Musca Constellation
- Norma Constellation
- Octans Constellation
- Ophiuchus Constellation
- Orion Constellation
- Pavo Constellation
- Pegasus Constellation
- Perseus Constellation
- Phoenix Constellation
- Pictor Constellation
- Pisces Constellation
- Piscis Austrinus Constellation
- Puppis Constellation
- Pyxis Constellation
- Reticulum Constellation
- Sagitta Constellation
- Sagittarius Constellation
- Scorpius Constellation
- Sculptor Constellation
- Scutum Constellation
- Serpens Constellation
- Sextans Constellation
- Taurus Constellation
- Telescopium Constellation
- Triangulum Australe Constellation
- Triangulum Constellation
- Tucana Constellation
- Ursa Major Constellation
- Ursa Minor Constellation
- Vela Constellation
- Virgo Constellation
- Volans Constellation
- Vulpecula Constellation
- Constellation Map
- Constellation Names
- Asterisms
- Big Dipper
- Little Dipper
- Orion’s Belt
- Orion’s Sword
- Southern Cross
- Summer Triangle
- Northern Cross
- Cassiopeia’s W
- Spring Triangle
- Great Diamond
- Winter Hexagon
- Winter Triangle
- Teapot
- The Kite
- Great Square of Pegasus
- Water Jar
- False Cross
- Diamond Cross
- The Fish Hook
- The Sickle
- Pointer Stars
- Auriga’s Hexagon
- Spica’s Spanker
- Circlet of Pisces
- The Coathanger (Brocchi’s Cluster)
- Kemble’s Cascade
- D Cluster (Collinder 21)
- The Keystone
- Three Leaps of the Gazelle
- Messier Objects
- Constellations by Month
- Seasonal Constellations
- What Is a Constellation?
- Caldwell Catalogue
- Telescopes and Night Sky Guides