SIERRA COLLEGE
ASTRONOMY 10

DEEP SKY OBJECTS
FOR FINAL

Messier #

Name

Constellation

Notable Characteristic

Photo
(Click Thumbnail for Larger Photo)

1

Crab Nebula

Taurus

—Supernova remnant

—Endpoint of high mass stellar evolution

8

Lagoon Nebula

Sagittarius

—Stellar nursery

—Emission nebula

13

Hercules Cluster

Hercules

—Globular star cluster

—Population II stars

16

Eagle Nebula

Serpens

—Emission nebula

—Stellar birthplace

20

Trifid Nebula

Sagittarius

—Dark, reflection, and emission nebulae

—Dust and gas visible

27

Dumbbell Nebula

Vulpecula

—Planetary nebula

—After giant stage in Sun

31

Andromeda Galaxy

Andromeda

—Spiral galaxy

—Visible to unaided eye

—@2 Million LY

42

Orion Nebula

Orion

—Stellar nursery

—Emission nebula

44

Beehive Cluster

Cancer

—Open star cluster

—Population I stars

45

Pleiades Cluster
(7 Sisters)

Taurus

—Open star cluster

—Young Population I stars

51

Whirlpool Galaxy

Canes Venatici

—Spiral galaxy

—Interacting pair

57

Ring Nebula

Lyra

—Planetary nebula

—White dwarf visible

—Endpoint of low mass stellar evolution

87

Virgo A

Virgo

—Giant elliptical galaxy

—In Virgo Cluster

—@60 Million LY

104

Sombrero Galaxy

Virgo

—Edge view of spiral galaxy

—Visible dust lanes

--

Double Cluster

Perseus

—2 open clusters
('H' & Chi)

—@7000-8000 LY

--

Horsehead Nebula

Orion

—Emission & dark nebulae

—Stellar birthplace



 
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