swap_horiz HB 9 Alternatives

1

Veil Nebula (NGC 6960/NGC 6992)

The Veil Nebula, formally NGC 6960 and NGC 6992, is a vast, filamentary structure within the constellation Cygnus. It re...

Large Ancient Cygnus Supernova Remnant

9.5 Brilliant

2

Cygnus Loop

A large supernova remnant in Cygnus spanning about 3 degrees on the sky, formed roughly 10,000 years ago and encompassin...

Large Optical Cygnus Supernova Remnant

8.6 Great

3

Simeis 147 (Spaghetti Nebula)

Simeis 147, the Spaghetti Nebula, is an extremely large and faint supernova remnant spanning across the constellations o...

Large Taurus Faint Supernova Remnant

8.2 Great

4

Spaghetti Nebula (Simeis 147)

A supernova remnant spanning roughly 3 degrees across Taurus and Auriga, discovered at the Crimean Astrophysical Observa...

Large Taurus Faint Supernova Remnant

7.8 Good

5

Abell 21 (Medusa Nebula)

Cataloged by George Abell in 1955, the Medusa Nebula is a massive planetary nebula in Gemini, distinguished by its vast,...

Large Planetary Gemini Faint

7.6 Good

6

Sh2-91

Sh2-91 is a very faint Cygnus emission nebula, notable as the long southern filament of the supernova remnant G65.2+5.7.

Cygnus Faint Sharpless Supernova Remnant

7.6 Good

7

Jones-Emberson 1

Jones-Emberson 1 is the Headphone Nebula, a large faint planetary nebula in Lynx discovered in 1939 by Rebecca Jones and...

Large Planetary Lynx Faint

7.4 Good

8

Owl Nebula (M97)

A large, faint planetary nebula in Ursa Major discovered by Pierre Méchain in 1781, named for two dark circular patches...

Large Planetary Messier Faint

7.4 Good

9

NGC 6781 (Snowglobe Nebula)

NGC 6781, known as the Snowglobe Nebula, is a planetary nebula in the constellation Aquila that was discovered by Willia...

Large Planetary Aquila Faint

7.4 Good

10

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

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

Monogem Ring

The Monogem Ring is a large supernova remnant in Gemini detected in X-rays by ROSAT, with an estimated age of about 86,0...

Large Milky Way Pulsar Gemini

6.9 Fair

13

Sharpless 2-91

Sharpless 2-91 is a faint planetary nebula located in the constellation Cygnus, notable for its intricate filamentary st...

Old Large Cygnus Faint

6.7 Fair

14

CTB 1 (Abell 85)

A faint supernova remnant in Cassiopeia associated with pulsar PSR J0002+6216, discovered in 2017, which is traveling at...

Old Large Cassiopeia Faint

6.6 Fair

15

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

16

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

17

Sh2-225

Sh2-225 is a compact H II region in Auriga, placed in the Perseus Arm and noted for probable ongoing star formation arou...

Faint Auriga Sharpless Supernova Remnant

6.3 Fair

18

Abell 31 (Sh2-290)

A large, extremely faint planetary nebula in Cancer catalogued by George Abell in 1966, considered one of the oldest and...

Old Large Planetary Cancer

5.5 Mediocre

19

Jones-Emberson 1 (PK 164+31.1)

A large, extremely faint planetary nebula in Lynx discovered by Rebecca Jones and Richard Emberson in 1939, notable for...

Old Large Planetary Lynx

5.2 Mediocre

20

HB 3 (G132.7+1.3)

HB 3 is a massive, evolved supernova remnant in the Cassiopeia region, notable for its physical interaction with the adj...

Large Cassiopeia Faint Supernova Remnant

5.0 Mediocre