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
|In the Herschel Column
the Classes are:
|I = Bright Nebulae
||III = Very Faint Nebulae
||V = Very Large
|VII = Pretty Much Compressed
Clusters of Large or Small Stars
|II = Faint Nebulae
||IV = Planetary Nebulae
||VI = Very Compressed and Rich Clusters
||VIII = Coarsely Scattered
Clusters of Stars
||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.
||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!
||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.
||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.
||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
||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.
||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.
||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