Hershel 400 Objects in Sculptor


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
253 SCL Scp 00 47.5 -25 18 7.1 25'X7' H V 1 is the star of the show in Sculptor. This very large and very bright galaxy was discovered by Caroline Herschel in 1783 during a comet search. From the Cape of Good Hope, her nephew John Herschel called it " a superb object" in the 18" reflector. This spiral is probably the closest galaxy to the Local Group. This object is easily seen in a finder or pair of binoculars. In the 8 incher at 100X this galaxy is over half of a 45' field and displays some mottling. At 130X there are many stellar spots near the core in moments of good seeing. In the larger instruments there are many dark lanes, with swirls and rifts prominent throughout the galaxy to a somewhat brighter core region.
288 SCL GLOCL 00 52.8 -26 35 8.1 13.8' H VI 20 is a welcome globular cluster as a break in all these galaxies. This globular is a large, low surface brightness object. It can be seen in 10x50 binoculars as a small, dim spot. The 8" at 100X will resolve 30 stars across the face of this cluster. The larger scopes help some, with more stars resolved. The cluster does not have a brighter core in any of our scopes. A.J. Crayon called it "irregularly round" in the 8". Steve Coe says "roundish" in the 17.5". It sounds as if you will have to go look for yourself.
613 SCL Sbc 01 34.3 -29 24 11.0 5.8'X4.6' H I 281 is pretty bright and quite elongated in the 8" at 80X. This scope will show the outer tips of the spiral arms curved as if to show off their motion. Neither of the larger scopes will bring out that detail. All three instruments will show a brighter core and a pretty bright star on the NE side of the galaxy.