Type | Galaxy |
---|---|
Magnitude | 13.3 |
Size | 1.187' x 0.285' @ 5° |
Right Ascension | 2h 51' 58.7" (2000) |
Declination | 33° 20' 23" S |
Constellation | Fornax |
Classification | Sc |
Harold Corwin
I always get concerned when I see that an IC object was found by Lewis Swift. He was an old man by the time he got the Warner Observatory moved to Echo Mountain, and his positions from Lowe Observatory (as it was renamed) are considerably worse than those from Warner.
So, when I saw that the RA of this object is out by 41 seconds, and the Dec by 1.7 arcmin, I wondered if I had chosen the right galaxy to carry the IC number in SGC. It didn't help that Andris and Wolfgang had agreed with me -- I may have copied Andris's ESO catalogue and Wolfgang may have copied mine. I checked again.
I found that I (or Andris) was probably right. Though there is another candidate galaxy (MCG-05-07-030 = ESO 356-GA011) just a degree north (1 deg 1.1 arcmin, to be fussy about it), the RA is 2min 34sec out, and the star south-following is magnitude 4.5 rather than 7 as Swift made it. These discrepancies seem to rule out the alternate pretty conclusively.
So, I've kept the identification as is. (The star near IC 1862 = ESO 356-G015 has a magnitude of 8.1 in SAO, by the way, much closer to Swift's estimate).― IC Notes by Harold Corwin
Beta Fornacis | IC 1864 | NGC 1165 |
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
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