IC 4494
DSS image of IC 4494
Overlaid DSS image of IC 4494, 60' x 60' with north at top and west to the right

Aladin viewer for the region around IC 4494
MCG+03-38-003, PGC 52644, SDSS J144425.53+153304.9

Type  Galaxy
Magnitude  15
Size  0.497' x 0.228' @ 130°
Right Ascension  14h 44' 25.4"  (2000)
Declination  15° 33' 5" N
Constellation  Boötes
Description  vF, vS, R, dif
Observing Notes

Harold Corwin

IC 4494 may be CGCG 105-013 = MCG +03-38-003 -- but it may also be CGCG 105-014 = MCG +03-38-004. The first is closer to Frost's nominal position, but the second is a virtually perfect match for his description: "vF and dif., R, d 0.2 arcmin". Given that the 4-hour Bruce plate on which Frost found the galaxy has a limiting magnitude of about 17, the galaxy would appear considerably smaller on that plate than on the POSS1 prints. CGCG 105-013 has an apparent diameter of 1.0 x 0.4, while C-014 has a diameter of 0.5 x 0.4.

So which one did he see? We'll have to examine the plate in the Harvard archives to know for sure. In the meantime, I'm listing both objects, giving slightly more weight to the northern object (CGCG 105-013), but only because it is closer to Frost's nominal position. As I've noted, Frost's description favors the southern galaxy.
IC Notes by Harold Corwin
Other Data Sources for IC 4494
Nearby objects for IC 4494
4 objects found within 60'
IC 4503 Pi Boötis
Pi2 Boötis
Credits...

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

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IC 4494