
Hershel 400 Objects in Orion
| Abbreviations in the CON column are the IAU versions. |
| The column TYPE has following abbreviations: |
| OPNCL = open cluster |
PLNNB = planetary nebula |
GLOCL = globular cluster |
CL+NB = open cluster and nebulosity |
BRTNB = bright emission or reflection nebula |
| Hubble Classification for galaxies or GALXY where no
classification existed. |
| In the Herschel Column
the Classes are: |
| I = Bright Nebulae |
III = Very Faint Nebulae |
V = Very Large
Nebulae |
VII = Pretty Much Compressed
Clusters of Large or Small Stars |
| II = Faint Nebulae |
IV = Planetary Nebulae |
VI = Very Compressed and Rich Clusters
of Stars |
VIII = Coarsely Scattered
Clusters of Stars |
| NGC_# |
Con |
Type |
RA_2000 |
Declination |
Mag |
Size |
Hershel_# |
Observation Notes |
| 1788 |
ORI |
BRTNB |
05 06.9 |
-03 20 |
99.9 |
8'X5' |
H V 32 |
is pretty faint, pretty large and irregular
in the 17.5" at 100X. It looks like a paint splatter with a pretty
bright star at one edge. |
| 1980 |
ORI |
CL+NB |
05 35.2 |
-05 55 |
2.5 |
14'X14' |
H V 31 |
If you are like me, the first time you looked
at NGC 1980, you didn't know that you were looking at an object that
has a seperate designation from the Great Orion Nebula. NGC 1980 is
the faint nebulosity that involves Iota Orionis, the end star of the
sword of Orion. I wish I has a nickel for every time that Iota Ori
has been used as a guide star! |
| 1999 |
ORI |
BRTNB |
05 36.5 |
-06 43 |
99.9 |
16'X12' |
H IV 33 |
Pretty bright, pretty large, round, somewhat
brighter in the middle, surrounding a star. There are several dark
markings in the nebula at 135X. Averted vision enlarges the nebula
and the north side is brightest. |
| 2022 |
ORI |
PLNNB |
05 42.1 |
+09 05 |
12.8 |
28"X27" |
H IV 34 |
is a pretty small, not very bright planetary.
It can be noticed in the 17.5" at 50X. At 200X, it is a greenish
dot with no internal detail. |
| 2024 |
ORI |
BRTNB |
05 42.0 |
-01 50 |
99.9 |
30'X30' |
H V 28 |
is a bright, large emmision nebula near Zeta
Ori. It is easy in any telescope I have ever used under dark skies
and my old 8" f/6 would show several dark lanes winding across
this nebulosity. The 17.5 incher helps a lot and much detail can be
seen in the region at 200X. The UHC helps a lot and so does getting
Zeta out of the field. Because of the large, parallel dark lanes,
Arizona astronomers have taken to calling NGC 2024 the "Tank
Track" Nebula. |
| 2169 |
ORI |
OPNCL |
06 08.4 |
+13 57 |
5.9 |
7.0' |
H VIII 24 |
is a pretty bright, not compressed open cluster
in the 17.5 inch at 100X. What is bizarre is that the cluster members
form the numerals "3" and "7". It is a shame that
this is not M37, you couldn't miss it. |
| 2186 |
ORI |
OPNCL |
06 12.2 |
+05 27 |
8.7 |
4.0' |
H VII 25 |
Pretty bright, pretty small, pretty rich, compressed,
stars of mags 10 to 13, 27 stars counted at 165X. There are several
delicate pairs in this cluster. |
| 2194 |
ORI |
OPNCL |
06 13.8 |
+12 48 |
8.5 |
10.0' |
H VI 5 |
is a bright, pretty rich, compressed open cluster
that is well resolved in the 17.5" at 100X. The cluster has a
flattened shape. |
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