swap_horiz Abell 20 Alternatives

1

Diamond Ring Nebula (Abell 33)

Abell 33, sometimes called the Diamond Ring Nebula, is a planetary nebula located in the constellation Hydra. The nebula...

Planetary Round Hydra Faint

8.4 Great

2

Medusa Nebula

The Medusa Nebula (Abell 21) is a large planetary nebula located in the constellation Gemini, approximately 1,500 light-...

Planetary Gemini Faint Abell

7.6 Good

3

Abell 21 (Medusa Nebula)

Abell 21, commonly called the Medusa Nebula, is a large, faint planetary nebula in the constellation Gemini. It consists...

Large Planetary Gemini Faint

7.6 Good

4

Jones-Emberson 1

Jones-Emberson 1, commonly known as the Headphone Nebula, is a large and exceptionally faint planetary nebula located in...

Large Planetary Lynx Faint

7.4 Good

5

Owl Nebula (M97)

Messier 97, commonly called the Owl Nebula, is a planetary nebula in Ursa Major discovered by Pierre Méchain in 1781. It...

Large Planetary Messier Faint

7.4 Good

6

NGC 6781 (Snowglobe Nebula)

NGC 6781, sometimes called the Snowglobe Nebula, is a planetary nebula in the constellation Aquila. William Herschel dis...

Large Planetary Aquila Faint

7.4 Good

7

Robin's Egg Nebula (NGC 1360)

A large oval planetary nebula in Fornax about 978 light-years away, notable for its smooth elliptical shell and relative...

Large Planetary Faint Southern Sky

7.3 Good

8

Abell 31

Abell 31 is a large, faint planetary nebula in the constellation Cancer and is also cataloged as Sh2-290. It consists of...

Large Planetary Cancer Abell

7.0 Good

9

NGC 6772

NGC 6772 is a planetary nebula in the constellation Aquila. William Herschel recorded it in July 1784, and modern catalo...

Large Planetary Ngc Aquila

7.0 Good

10

Abell 36

Abell 36 is a faint planetary nebula located in the constellation Virgo, cataloged by astronomer George O. Abell in 1955...

Planetary Faint Abell Virgo

6.9 Fair

11

Medusa Nebula (Abell 21)

A large, ancient planetary nebula in Gemini roughly 1,500 light-years away, originally misclassified as a supernova remn...

Old Large Planetary Gemini

6.9 Fair

12

Jones 1 (PK 104-29.1)

Jones 1, catalogued as PK 104-29.1, is a large and extremely faint planetary nebula in the constellation Pegasus. It was...

Old Large Planetary Pegasus

6.9 Fair

13

Lo 1 (Longmore 1)

Lo 1, or Longmore 1, is a planetary nebula notable for its high-excitation spectrum and distinct ring morphology, first...

Large Planetary Vela Faint

6.9 Fair

14

Jones-Emberson 1 (Headphone Nebula)

Jones-Emberson 1, also known as the Headphone Nebula, is a faint planetary nebula in Lynx discovered by Rebecca Jones an...

Ring Large Planetary Lynx

6.5 Fair

15

Sh2-71

Sh2-71 is a striking planetary nebula in the constellation Aquila, distinguished by its complex, asymmetric morphology a...

Large Planetary Irregular Aquila

6.4 Fair

16

K 1-22

K 1-22 is a planetary nebula notable for its unusual, highly asymmetric morphology, cataloged by astronomer Lukasz Kohou...

Large Planetary Ophiuchus Faint

6.3 Fair

17

IC 1295

A faint planetary nebula in Scutum about 3,300 light-years away, notable for its unusual greenish hue and multiple conce...

Large Planetary Faint Southern Sky

6.2 Fair

18

Spare Tyre Nebula (IC 5148)

A large planetary nebula in Grus expanding at roughly 50 km/s, making it one of the fastest-expanding planetary nebulae...

Large Planetary Faint Grus

6.2 Fair

19

Abell 46

Abell 46 is an ancient planetary nebula in the constellation Hercules, notable for its faint, highly elongated ring of i...

Large Planetary Lyra Faint

6.0 Fair

20

Abell 74

Abell 74 is an ancient planetary nebula distinguished by its large, faint, and highly evolved ring of ionized gas surrou...

Large Planetary Faint Vulpecula

5.7 Mediocre