All of My PN Images (264)

All of My PN Images (264) A collection by Gary Imm

All planetary nebulae come from the same process - the death of a medium sized star. The smallest of the deep sky objects, a planetary nebula is a glowing gas shell, generally circular, formed when ionized gas is expelled into the surrounding interstellar space. The expelling of this gas signals that the star is passing through the last stage in its life, on its way to collapsing into a dense white dwarf. As the star collapses, the outer gas layers become energized and illuminated by ultraviolet radiation from the dwarf at their center. Over 200 years ago, these objects were termed "planetary nebulae" by William Herschel because of their planet-like appearance through 18th century telescopes. But since a nebula has nothing to do with a planet, this label has led to confusion ever since. The PN below are listed in the order of their designation.

Bright Planetary Nebulae of the Night Sky
Gary Imm
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296 62
69 1
PN=0000
Griffiths Planetary List, with Intro from Martin Griffiths
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148 22
29 0
PN=0001
Abell 1
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114 2
32 1
PN=Abell01
Abell 2
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102 3
27 1
PN=Abell02
Abell 3
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85 2
27 1
PN=Abell03
Abell 4
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108 1
28 1
PN=Abell04
Abell 5
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71 3
27 0
PN=Abell05
Abell 6 and HFG 1
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229 23
68 1
PN=Abell06
Abell 7
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151 10
30 1
PN=Abell07
Abell 8 and Bica 6
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67 2
19 1
PN=Abell08
Abell 9
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101 1
20 1
PN=Abell09
Abell 10
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125 4
34 1
PN=Abell10
Abell 12
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170 10
34 1
PN=Abell12
Abell 13
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167 14
33 1
PN=Abell13
Abell 14
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103 0
28 1
PN=Abell14
Abell 15
Gary Imm
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114 1
23 1
PN=Abell15
Abell 16
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111 2
20 0
PN=Abell16
Abell 18
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114 2
15 1
PN=Abell18
Abell 19
Gary Imm
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108 3
14 1
PN=Abell19
Abell 20
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150 3
28 1
PN=Abell20
Abell 21
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126 3
24 0
PN=Abell21
Abell 22
Gary Imm
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130 4
19 1
PN=Abell22
Abell 23
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77 2
42 0
PN=Abell23
Abell 24
Gary Imm
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127 7
27 1
PN=Abell24
Abell 25
Gary Imm
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109 3
14 1
PN=Abell25
Abell 26
Gary Imm
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86 2
14 1
PN=Abell26
Abell 27 / Kohoutek 1-1
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100 0
6 1
PN=Abell27
Abell 28
Gary Imm
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115 3
15 0
PN=Abell28
Abell 29
Gary Imm
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141 8
36 1
PN=Abell29
Abell 30
Gary Imm
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139 8
34 1
PN=Abell30
Abell 31
Gary Imm
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228 13
62 1
PN=Abell31
Abell 33
Gary Imm
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175 6
35 1
PN=Abell33
Abell 34
Gary Imm
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124 14
35 0
PN=Abell34
Abell 35 - Sh2-313
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118 11
31 0
PN=Abell35
Abell 36
Gary Imm
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86 2
21 0
PN=Abell36
Abell 37
Gary Imm
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94 5
35 0
PN=Abell37
Abell 38
Gary Imm
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121 1
18 1
PN=Abell38
Abell 39
Gary Imm
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194 13
30 1
PN=Abell39
Abell 40
Gary Imm
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111 1
13 1
PN=Abell40
Abell 41
Gary Imm
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108 1
25 1
PN=Abell41
Abell 42
Gary Imm
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101 3
21 1
PN=Abell42
Abell 43
Gary Imm
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94 4
22 1
PN=Abell43
Abell 44
Gary Imm
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103 0
19 1
PN=Abell44
Abell 45
Gary Imm
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135 8
26 1
PN=Abell45
Abell 46
Gary Imm
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104 2
22 1
PN=Abell46
Abell 47
Gary Imm
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88 0
18 1
PN=Abell47
Abell 48
Gary Imm
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111 3
18 1
PN=Abell48
Abell 49 and Vy 1-4
Gary Imm
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117 3
22 1
PN=Abell49
Abell 50
Gary Imm
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87 1
31 0
PN=Abell50
Abell 51
Gary Imm
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139 3
26 1
PN=Abell51
Abell 52
Gary Imm
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122 1
23 1
PN=Abell52
Abell 53
Gary Imm
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138 4
54 1
PN=Abell53
Abell 54
Gary Imm
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95 1
18 0
PN=Abell54
Abell 55
Gary Imm
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107 2
19 1
PN=Abell55
Abell 56
Gary Imm
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90 9
39 0
PN=Abell56
Abell 57
Gary Imm
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120 0
21 1
PN=Abell57
Abell 58
Gary Imm
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120 1
25 1
PN=Abell58
Abell 59
Gary Imm
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121 2
24 1
PN=Abell59
Abell 60
Gary Imm
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107 1
20 1
PN=Abell60
Abell 61
Gary Imm
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85 1
22 0
PN=Abell61

	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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	296		62
	69		1
	PN=0000

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	148		22
	29		0
	PN=0001

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	114		2
	32		1
	PN=Abell01

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	102		3
	27		1
	PN=Abell02

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