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 |
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
IC 4503 | Pi Boötis | |
Pi2 Boötis |
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