Page last updated July 28, 2021
PGC 67078
(= PGC 189180 = PGC 189184 = ESO 287-043 = MCG -07-44-027)
A magnitude 13.7 spiral galaxy (type SAB(s)m) in Grus (RA 21 38 12.4, Dec -43 56 05)
Physical Information:
Note About Classification: The Spitzer Survey of Stellar Structure in Galaxies type is SA B(s)m sp. The "sp" at the end stands for "spindle", and means that the galaxy is nearly "edge-on", which is obvious from images of the galaxy, so it is not included in the type shown in the description line. It also means that the classification is probably not as accurate as it would be if we could see the galaxy "face-on".
Above, a 12 arcmin wide DSS image centered on PGC 67078
NOTE TO SELF: Need to use 3K CMB Vr, size (from images)
PGC 67110
(= PGC 189327 = ESO 236-029)
A magnitude 15(?) spiral galaxy (type (R)SA(r)a) in Grus (RA 21 39 25.6, Dec -49 09 37)
Physical Information: Based on a recessional velocity of 15990 km/sec, a straightforward calculation indicates that PGC 67110 is about 745 million light years away. But for objects at such distances we should take into account the expansion of the Universe during the time it took their light to reach us. Doing that shows that the galaxy was about 700 million light years away when the light by which we see it was emitted, about 720 million years ago (the difference between the two numbers being due to the expansion of the intervening space during the light-travel time). Given that and its apparent size of 0.95 by 0.6 arcmin, it is about 200 thousand light years across.
Usage By The de Vaucouleurs Atlas: PGC 67110 is used by the The de Vaucouleurs Atlas of Galaxies as an example of galaxy type (R)SA(r)a.
Above, a 12 arcmin wide DSS image centered on PGC 67110
Below, a 2.4 arcmin wide DSS image of the galaxy
PGC 67162
(= ESO 011-005)
A magnitude 15.5 spiral galaxy (type Sdm) in Octans (RA 21 40 58.4, Dec -82 47 59)
Physical Information:
Note About Classification: The Spitzer Survey of Stellar Structure in Galaxies classification is S dm sp. The "sp" at the end stands for "spindle", and means that the galaxy is nearly "edge-on", which is obvious from images of the galaxy, so it is not included in the type shown in the description line. It also means that the classification is probably not as accurate as it would be if we could see the galaxy "face-on".
Above, a 12 arcmin wide DSS image centered on PGC 67162
PGC 67293
(= PGC 190022 = PGC 190026 = ESO 236-039)
A magnitude 15(?) spiral(?) galaxy (type S/IABm:) in Grus (RA 21 45 14.7, Dec -49 00 32)
Physical Information:
Note About Classification: The type is taken from the Spitzer Survey of Stellar Structure in Galaxies. The colon after the "m" indicates uncertainty in that part of the classification, while the "S/I" indicates that since the galaxy is so lacking in structure (as indicated by the "m"), it is not possible to say whether it is a poorly organized spiral or an irregular galaxy.
Above, a 12 arcmin wide DSS image centered on PGC 67293
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