IC 1642
Overlaid DSS image of IC 1642, 30' x 30' with north at top and west to the right
Aladin viewer for the region around IC 1642
IC 1645, MCG+02-04-008, NPM1G +15.0043, PGC 95507, SDSS J011227.33+154500.2
| Type | Galaxy |
|---|---|
| Magnitude | 15.5 |
| Size | 0.41' x 0.353' @ 0° |
| Right Ascension | 1h 12' 27.3" (2000) |
| Declination | 15° 45' 0" N |
| Constellation | Pisces |
Observing Notes
Harold Corwin
IC 1642 = IC 1645. Javelle found I1642 = J842 on 29 Jan 1897, and used BD +14 188 as his comparison star. Unfortunately, the BD position of this star is in error by about 1.5 arcmin. Therefore, so is the calculated position of I1642.
Using the GSC position of the star, however, and Javelle's offsets, the object's position is within 6 arcsec of IC 1645 = J844. Javelle measured this on two nights at the end of 1897 (24 Nov and 17 Dec) along with IC 1646 = J845. He used BD +14 175 as his comparison star for both of these galaxies. Since the position for that star is (coincidentally) pretty good in the BD, Javelle's calculated positions for the galaxies are similarly good and there is no mistaking their identities.
Other Data Sources for IC 1642
Nearby objects for IC 1642
14 objects found within 120'
| 72 Piscium | 87 Piscium | IC 1620 |
| IC 1632 | IC 1634 | IC 1635 |
| IC 1646 | NGC 459 | NGC 463 |
| NGC 469 | NGC 471 | NGC 473 |
| NGC 475 | NGC 476 |
Credits...
Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.
A complete list of credits and sources can be found on the about page
IC 1642