Type | Star |
---|---|
Magnitude | Right Ascension | 12h 33' 19.0" (2000) |
Declination | 9° 23' 36" N |
Constellation | Virgo |
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
20 Virginis | IC 3412 | IC 3430 |
IC 3468 | IC 3485 | IC 3487 |
IC 3517 | IC 3518 | IC 3525 |
IC 3562 | NGC 4469 | NGC 4483 |
NGC 4519 | NGC 4519A | NGC 4522 |
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
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