Hershel 400 Objects in Monoceros


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
2185 MON BRTNB 06 11.1 -06 12 99.9 3.0' H IV 20 2170 and 2182 are several "little green boxes" on the Tirion Atlas near Beta Mon. Even at a very dark site on a night I rated 7/10 for seeing and transparency there is not much here. At 100X in the 13" there are several fuzzy stars in a field that is noticably void of stars compared to the nearby Milky Way. On an excellant night I rated 9/10 it is Pretty faint, small, round and has an 11th mag star involved.
2215 MON OPNCL 06 21.0 -07 17 8.4 11.0' H VII 20 is bright, large, pretty rich, round and not compressed at 100X. It was seen in the 10X50 binoculars.
2232 MON OPNCL 06 26.6 -04 45 3.9 30.0' H VIII 25 Bright, very large, not compressed, not rich, scattered group of 22 stars including 10 MON. This is even a scattered cluster in the 11 X 80 finder.
2244 MON CL+NB 06 32.4 +04 52 4.8 24.0' H VII 2 is the star cluster involved in the Rosette. In the 13" at 60X it consists of 2 parallel lines of about 15 stars. It is very bright, very large and not compressed. Several of the stars are yellow and one is a lovely orange.
2251 MON OPNCL 06 34.7 +08 22 7.3 10.0' H VIII 3 is bright, pretty large, elongated and contains about 40 stars in a very nice Milky Way field. It is pretty rich and not compressed at 100X.
2264 MON CL+NB 06 41.1 +09 53 3.9 20.0' H V 27=H VIII 5 is a brighter naked eye spot in the Milky Way that marks the location of this large, bright and not compressed star cluster. Because of the shape of the brighter stars, this is called the Xmas tree cluster and includes the variable S Mon within the tree shape. Binoculars or finder will show the tree outline with ease. The cluster is involved in a faint nebulosity that is brightest near S Mon and on the north side of the cluster. With the 38mm Erfle and the UHC filter the nebula extends for 2 degrees around the star cluster. At 100X with the UHC a dark lane can be seen in the nebula, this is the Cone Nebula. There are very few faint stars in this region a measure of the amount of dark nebulosity that permeates this entire region.
2286 MON OPNCL 06 47.6 -03 10 7.5 15.0' H VIII 31 Pretty bright, large, rich, somewhat compressed, 52 stars counted with lots of faint members at 135X. There several lovely dark lanes winding through this cluster.
2301 MON OPNCL 06 51.8 +00 28 6.0 12.0' H VI 27 has been a favorite of mine for many years. This open cluster is bright, large and pretty rich with about 40 members. It is easy to pick out in the finder scope. The aspect of this cluster which makes me return each winter is a lovely blue and gold double star right in the center. There is a clear area around the double star. If you have missed this beautiful cluster, put it on your list.
2311 MON OPNCL 06 57.8 -04 35 9.6 7.0' H VIII 60 Pretty bright, pretty small, not rich, 22 stars counted at 165X. This cluster has a rather triangular shape.
2324 MON OPNCL 07 04.2 +01 03 8.4 8.0' H VII 38 Bright, large, rich, compressed, 55 stars counted at 135X. This sparkling cluster has a nice backround of dim members.
2335 MON OPNCL 07 06.6 -10 05 7.2 12.0' H VIII 32 is pretty faint, pretty large and not compressed. It has about 15 members at 100X.
2343 MON OPNCL 07 08.3 -10 39 6.7 7.0' H VIII 33 Pretty bright, small, not rich, not compressed, 23 stars counted at 100X. A nice Yellow and Blue double star in on the Eastern edge of the cluster, it has a seperation of approximately 10 arcsec and a PA of about 315 degrees.
2353 MON OPNCL 07 14.6 -10 18 7.1 20.0' H VIII 34 is pretty bright, pretty large, pretty rich and not compressed. It is a nice cluster at 135X, with about 50 members. The UHC filter will just barely show a very faint streamer of nebulosity on the south side. Rocking the scope helps to make the nebula more noticeable.
2506 MON OPNCL 08 00.2 -10 47 7.6 7.0' H VI 37 is bright, pretty large, compressed and rich at 100X. It has about 40 members that are obvious and a hazy backround, even at higher powers.