IC 3493
DSS image of IC 3493
Overlaid DSS image of IC 3493, 60' x 60' with north at top and west to the right

Aladin viewer for the region around IC 3493

Type  Star
Right Ascension  12h 33' 19.0"  (2000)
Declination  9° 23' 36" N
Constellation  Virgo
Observing Notes

Harold Corwin

IC 3493 is probably a star. The situation is odd: Schwassmann has accurate positions for IC 3487 just west of IC 3493, and for a star just east. These agree to within a few arcsec of the modern positions.

However, for IC 3493 itself, Schwassmann's position is 2 seconds of time east, and 12 arcsec south of the star that he perhaps measured. Is there a defect superposed that pulled his position off? We may never know, as his plates are reported to be missing from the plate vaults in Heidelberg.
IC Notes by Harold Corwin
Other Data Sources for IC 3493
Associated objects for IC 3493
Nearby objects for IC 3493

Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.

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IC 3493