Some galaxies and galaxy groups in Cetus + Zwicky's ring
Hi All,
Haven't posted here for a little while but dropped by on a whim today and thought I'd post a few observations from the other night, plus one from about three weeks ago that I thought some may find interesting. I have recently acquired a new 'scope that has got me on a bit of a kick observing wise. It is a second hand Classic Obsession 25" f/5.
The first one is an observation of ESO 350-40 otherwise known as Zwicky's Ring or more recently The Cartwheel Galaxy. This observation was on 12th September 2018, the SQM-L reading was 21.88:
x195 25' TF x260 19' TF
ESO 350-40 (PGC 2248) Multi-Galaxy Sys *
RA: 00h 37m 40.2s Dec: -33° 42' 59"
Mag: 13.9 S.B.: --- B-V: --- Size: 1.4'x1.1' Class: Ring
P.A.: 127 Inclination: --- R.V.: +9072 Source: PGC *
PGC 2249 Multi Galaxy Sys *
RA 00h 37m 44.80s Dec -33° 42' 20"
Mag: ? Size: ? Class:?
PA: ? INclimation:? R.V: ? Source: Sky Map
ESO 350-40B (PGC 2252) Multi-Galaxy Sys *
RA: 00h 37m 44.9s Dec: -33° 42' 20"
Mag: 15.3 S.B.: --- B-V: --- Size: 0.4'x0.3' Class:
P.A.: 114 Inclination: --- R.V.: --- Source: PGC *
The famous Fritz Zwicky's Ring. Astounded! The main galaxy of the three is actually seen as a ring! Thie ring is about 1.25' diameter and of very low SB but definately seen as a closed loop with a slightly darker interior. The ring is slightly ovoid in PA 120. A mag 16.5-17 * is seen embedded on the W edge of the ring and below this trailing around for about 90 degrees to S are four very, very faint star-like spots occasionally visible. There is another star-like spot on the NE edge of the ring near where the other two egs are. -49 & -52 are <1' to the NE.
Both these eg are of similar appearance -- about 15" diameter spots of gossamer with no structure. -52 is probably slightly the fainter.
Here are some further observations for a couple of nights ago over about 3 hours. The SQM-L reading at the commencement of observing was 21.74 and at the conclusion 21.86:
x195 25' TF x260 19' TF
NGC 132 Galaxy *
RA: 00h 30m 10.6s Dec: +02° 05' 34"
Mag: 13.4 (P) S.B.: ---B-V: --- Size: 1.9'x1.4'Class: SAB(s)bc
P.A.: 40 Inclination: 2 R.V.: +5316 Source: RC3 *
x195 This is a small, almost mod bright eg in a fairly thin field. Seems weakly elong in about PA 30 and to the NE by 2' is a mag 13 * and NNE by 3' is a mag 14 *. Fair-sized halo, 1.5 x 1.25' diameter growing broadly and slightly to centre where there is a small, not well defined, weakly brighter core-zone.
x195 25' TF x260 19' TF
NGC 166 Galaxy *
RA: 00h 35m 48.9s Dec: -13° 36' 43"
Mag: 15.4 S.B.: --- B-V: --- Size: 0.9'x0.3' Class: Sa
P.A.: 145 Inclination: --- R.V.: --- Source: PGC *
x260. This is a tiny eg could almost be passed over as *ar. 5' SE of a mag 12.5 *, Tiny, elong halo in about PA 150, about 15 x 5" rising evenly and strongly to a *ar mag 15.5 nucleus.
x195 25' TF x260 19' TF
NGC 173 Galaxy *
RA: 00h 37m 12.5s Dec: +01° 56' 31"
Mag: 13.7 (P) S.B.: --- B-V: --- Size: 3.1'x2.5' Class: SA(rs)c
P.A.: 115 Inclination: 2 R.V.: +4358 Source: RC3 *
NGC 170 Galaxy *
RA: 00h 36m 45.8s Dec: +01° 53' 11"
Mag: 15.4 (P) S.B.: --- B-V: --- Size: 0.6'x0.4' Class: S0-?
P.A.: 71 Inclination: --- R.V.: --- Source: RC3 *
x260: -73 is the brighter of these two by some distance, no worse than mod faint, almost mod bright. Lies between mags 13 & 13.5* aligned SW - NE sep by 3.5' with the brighter one SW. Also has a mag 15.5 sparkle just on the SE edge of the halo. 1.5 to 1.75' diameter round halo, very diffuse edges growing weakly to centre where there is a not well defined, slightly brighter round core zone but no apparent nucleus. 7' SW is -70.
is about 2' N of a mag 9 *, somewhat fainter but has slightly better S.B than its companion. Small, 30" diameter round halo growing slightly and evenly to centre where there is a mag 15.5 *ar nucleus.
x195 25' TF x260 19' TF
NGC 154 Galaxy *
RA: 00h 34m 19.5s Dec: -12° 39' 23"
Mag: 14.1 S.B.: --- B-V: --- Size: 1.1'x0.9' Class: E
P.A.: 80 Inclination: --- R.V.: --- Source: PGC *
-54 is about 6' SSE of a trapezium of mags 11, 12, 13 + 14 *s that form a rough diamond 4' x 2.5' . Small and round possesses good SB in the central parts, small 40" diameter halo with a fair-sized, mod br core zone that brightens further strongly to centre -- almost *ar. quite diffuse edges. MCG -2-2-58 is 7' NE.
MCG -2-2-58 (PGC 2092) Galaxy *
RA: 00h 34m 54.8s Dec: -12° 29' 54"
Mag: 14.3 S.B.: --- B-V: --- Size: 1.3'x1.0' Class: SAB(r)c
P.A.: 16 Inclination: --- R.V.: --- Source: RC3 *
Very small, 30" diameter faint halo of quite low SB brightening slightly and broadly to centre. No other structure.
x195 25' TF x260 19' TF
NGC 235 Multi-Galaxy Sys *
RA: 00h 42m 52.7s Dec: -23° 32' 26"
Mag: 14.1 (B) S.B.: 12.0 B-V: +0.92 Size: 1.3'x0.6' Class: S0 pec
P.A.: 117 Inclination: --- R.V.: +6664 Source: RC3 *
NGC 235B (PGC 2568) Multi-Galaxy Sys *
RA: 00h 42m 52.6s Dec: -23° 32' 30"
Mag: 14.5 S.B.: --- B-V: --- Size: 0.5'x0.5'Class: E
P.A.: --- Inclination: --- R.V.: --- Source: PGC *
NGC 235A (PGC 2570) Multi-Galaxy Sys *
RA: 00h 42m 53.8s Dec: -23° 32' 44"
Mag: 13.9 (P) S.B.: --- B-V: --- Size: 0.3' Class: E0? pec
P.A.: --- Inclination: --- R.V.: +6798 Source: RC3 *
NGC 232 Galaxy *
RA: 00h 42m 45.5s Dec: -23° 33' 40"
Mag: 14.4 (P) S.B.: --- B-V: --- Size: 0.9'x0.7' Class: SB(r)a? pec
P.A.: 55 Inclination: --- R.V.: +6673 Source: RC3 *
NGC 230 Galaxy *
RA: 00h 42m 26.5s Dec: -23° 37' 48"
Mag: 15.6 (P) S.B.: --- B-V: --- Size: 1.0'x0.2' Class: Sa? pec sp
P.A.: 44 Inclination: --- R.V.: --- Source: RC3 *
IC 1573 Galaxy *
RA: 00h 42m 10.4s Dec: -23° 35' 28"
Mag: 16.7 S.B.: --- B-V: --- Size: 1.2'x0.2' Class: S
P.A.: 70 Inclination: --- R.V.: --- Source: PGC *
x260: This is a nice grouping of eg in the one x260 power field. NGC 235, NGC 235B are superimposed on each other and indistinguishable from each other where 235A is a separate small eg only about 20" SE from the -35 +35B. -235/-35B is a small, mod faint eg, oval in about PA 90 about 40 x 30" rising broadly and slightly to centre where there is a quite bright, small core/nucleus with a stellaring. Just off the SE edge of the halo is -35A that is on the edge of -35's halo. Only about 10-15" diameter, not unreasonable SB growing broadly and slightly to centre where there is a faint *ar nucleus.
-232 is about 3' SW, no worse than faint, almost 1' diameter, round growing broadly & slightly to centre where there is a small, mod brighter spot-type core that is well delineated from the halo.
A line drawn from -35 through -32 extended SW brings you to a couple of mag 11.5 & 13.5 *s. Between these two is the small, faint form of NGC 230, which is a very faint, very elong eg in PA 45. No immediately visible, 40 x 5" slash of faint gossamer with a weak central brightening, no other structure. 5' NW of -30 is IC 1573 that is pointed at by the stars on either side of -230.
-73 Is a very similar looking object to -230 though probably even fainter again with marginally lower SB and a little smaller but in the same PA of 45, no other structure.
x195 25' TF x260 19' TF
IC 29 Galaxy *
RA: 00h 34m 10.8s Dec: -02° 10' 38"
Mag: 15.5 S.B.: --- B-V: --- Size: 0.7'x0.7' Class: C
P.A.: --- Inclination: --- R.V.: --- Source: PGC *
IC 30 Galaxy *
RA: 00h 34m 14.7s Dec: -02° 05' 05"
Mag: 16.5 S.B.: --- B-V: --- Size: 0.5'x0.2' Class: S
P.A.: 18 Inclination: --- R.V.: --- Source: PGC *
MCG +0-2-77 (PGC 2066) Galaxy *
RA: 00h 34m 29.3s Dec: -02° 13' 33"
Mag: 15.2 S.B.: --- B-V: --- Size: 0.7'x0.7' Class:
P.A.: --- Inclination: --- R.V.: --- Source: PGC *
IC 32 Galaxy *
RA: 00h 35m 01.6s Dec: -02° 08' 29"
Mag: 15.8 S.B.: --- B-V: ---Size: 0.4'x0.4' Class: S
P.A.: --- Inclination: --- R.V.: --- Source: PGC *
IC 33 Galaxy *
RA: 00h 35m 05.1s Dec: -02° 08' 15"
Mag: 15.6 S.B.: --- B-V: --- Size: 0.5'x0.4' Class: S0
P.A.: 72 Inclination: --- R.V.: --- Source: PGC *
Of this group all in the same x195 field, IC 29 is brightest. IC 30 is about 5' N while MCG +0-2-77 is a similar distance to the SE. IC 32 & -33 are ENE from -29 by about 12'.
Steve Gottlieb's NGC notes note that this group are about 750 mly distant. x260: -29 slightly the brighter than -30, small round halo 30-40" diameter growing broadly and slightly to centre with a hint of a stellaring? in the centre. -30 makes a long I tri with a couple of *s to its NE & NNE. Fainter than -29 and has lower SB, about 40" diameter growing weakly to centre but lacks any core or nucleus,
MCG +0-2-77 is a <30" spot of v/LSB and very faint gossamer, round no structure.
-32 and -33 are pointed at from the W by a small, elong diamond of 3 mag 14 & a mag 15 * . Both look similar to the other, 2' apart E-W, about 30" diameter or maybe even slightly smaller than that, round. -32 has a slightly brighter largish core zone that -33 lacks. Both seem to have a v/faint *aring at centre.
x195 25' TF x260 19' TF
NGC 161 (IC 1557) Galaxy *
RA: 00h 35m 34.1s Dec: -02° 50' 56"
Mag: 14.0 S.B.: --- B-V: --- Size: 1.3'x0.7' Class: S0^:
P.A.: 37 Inclination: --- R.V.: --- Source: RC3 *
MCG -1-2-37 Galaxy *
RA: 00h 35m 34.5s Dec: -02° 52' 35"
Mag: 15.4 S.B.: --- B-V: --- Size: 0.7'x0.4' Class: S
P.A.: 136 Inclination: --- R.V.: --- Source: PGC *
Steve Gottlieb's NGC notes indicate that the 2nd eg below NGC 161 is IC 1557, whereas Megastar & Sky Map indicate that IC 1557 is a second id number for NGC 161 and that the eg to the S of NGC 161 is MCG -1-2-37.
x260: -61 is a small, slightly elong eg is very compact and possesses v/good SB for its size. Small elong form in about PA 30 looking like a very distant edge-on spiral about 30" x 5" growing strongly to the axis near centre where there is a mag 15.5 *ar nucleus. Mag 12 * is due N by only 1.5'. MCG -1-2-37 is due S by nearly 2'.
-37 is a more diffuse and fainter eg, off-round in PA 120 growing slightly and broadly to centre where there is a tiny slightly brighter core with a mag 16 * not far off the E edge.
x195 25' TF x260 19' TF
NGC 167 Galaxy *
RA: 00h 35m 23.1s Dec: -23° 22' 25"
Mag: 14.3 (P) S.B.: --- B-V: --- Size: 0.9'x0.6' Class: SB(r)c?
P.A.: 171 Inclination: --- R.V.: --- Source: RC3 *
This is a small, mod faint but quite good S.B eg, round, no *s imm associated, about 30" diameter, round or perhaps just off round in PA 0, grows broadly and weakly to centre and occasionally you catch a mag 15.5 *ar nucleus.
x195 25' TF x260 19' TF
NGC 102 Galaxy *
RA: 00h 24m 36.5s Dec: -13° 57' 24"
Mag: 14.4 S.B.: --- B-V: --- Size: 1.0'x0.7' Class: S0/a
P.A.: 137 Inclination: --- R.V.: --- Source: PGC *
x195: Is a small, no worse than mod faint eg that has a "solid" appearance about it, only about 30 or 40" diameter, round, grows weakly to centre where there is a mag 15.5 *ar nucleus. Goodish SB for its size.
x195 25' TF x260 19' TF
NGC 191 Multi-Galaxy Sys *
RA: 00h 38m 59.5s Dec: -09° 00' 10"
Mag: 14.1 S.B.: --- B-V: --- Size: 1.4'x1.1' Class: SAB(rs)c: pec
P.A.: 125 Inclination: --- R.V.: --- Source: RC3 *
IC 1563 Multi-Galaxy Sys *
RA: 00h 39m 00.3s Dec: -09° 00' 57"
Mag: 13.6 S.B.: --- B-V: --- Size: 0.6'x0.3' Class: S0 pec sp
P.A.: 143 Inclination: --- R.V.: --- Source: RC3 *
x260: -191 These two small eg are in contact with the larger NGC 191 seems to be round, 40-50" diameter rising broadly and slightly to centre where there is a small mod brighter core zone. IC 1563 is due S, just on the edge of 191's halo. About 20" across, slightly elong in PA 0 so that it points almost nearly at the core of -191 and has a faint *ar nucleus. Mag 15* almost between the two "cores that makes a S triangle with them -- this * is superimposed on the halo of 191 in about PA 150.
x195 25' TF x260 19' TF
NGC 195 Galaxy *
RA: 00h 39m 35.7s Dec: -09° 11' 42"
Mag: 14.2 S.B.: --- B-V: --- Size: 1.0'x0.7' Class: (R)SB(r)a:
P.A.: 45 Inclination: --- R.V.: +4918 Source: RC3 *
A small, 40-50" diameter, round mod LSB eg. Rises broadly and slightly to centre. Edges seem fairly definite at centre is a v/small faint spot. Not too bad S.B.
x195 25' TF x260 19' TF
NGC 192 Hickson 7A Multi-Galaxy Sys *
RA: 00h 39m 13.4s Dec: +00° 51' 51"
Mag: 13.4 (B) S.B.: 12.4 B-V: +0.79 Size: 2.2'x0.8' Class: (R')SB(r)a:
P.A.: 163 Inclination: 5 R.V.: +4210 Source: RC3 *
NGC 196 Hickson 7B Multi-Galaxy Sys *
RA: 00h 39m 17.8s Dec: +00° 54' 46"
Mag: 13.8 (B)S.B.: 12.3 B-V: +0.94 Size: 1.2'x0.9' Class: SB0 pec:
P.A.: 3 Inclination: 1 R.V.: +4238 Source: RC3 *
NGC 197 Hickson 7D Multi-Galaxy Sys *
RA: 00h 39m 18.8s Dec: +00° 53' 31"
Mag: 14.8 (B) S.B.: --- B-V: +0.66 Size: 0.9'x0.8' Class: SB0^ pec
P.A.: 54 Inclination: 1 R.V.: +4192 Source: RC3 *
NGC 201 Hickson 7C Multi-Galaxy Sys *
RA: 00h 39m 34.9s Dec: +00° 51' 35"
ag: 13.6 (B) S.B.: 13.7 B-V: +0.67 Size: 2.2'x1.4'
Class: SAB(r)c P.A.: 147 Inclination: 1 R.V.: +4366 Source: RC3 *
This is a delightful little Hickson group (7).
196, 197 & 192 form a NNE-SSW line only about 3.5' long with -96 at the N end and -92 at the S. -97 is a little closer to -96 than -92 and a little east of the line between them. -01 is 5' E of -92.
-92 is the brightest and second largest, quite elong in abut PA 150, maybe 1.5' x 15", very elong, edge on spiral eg. Oval without tips possesses a small, slightly elong core with a central stellaring that occasionally seems *ar at x260.
-96 is small , round, about 40" diameter and brightens broadly and slightly to centre where there is a small slightly br core and conspicuous nucleus. -97 is about 1' SSE. 15-odd arc sec spot growing broadly and slightly to centre with no apparent core or nucleus.
-201 is the largest of the group and probably 2nd brightest overall, though it has lesser S.B than -92 & -96, 1.5' diameter, round and somewhat diffuse compared to the neighbours, grows weakly to centre with no apparent core or nucleus. Quite an attractive little group.
x195 25' TF x260 19' TF
IC 40 Galaxy *
RA: 00h 39m 21.4s Dec: +02° 27' 22"
Mag: 15.1 S.B.: --- B-V: --- Size: 1.0'x0.5' Class: S
P.A.: 22 Inclination: 6 R.V.: --- Source: PGC *
x260: This is a tiny, mod to quite faint eg. No *s associated. Mod low SB, 20" diameter halo with a faint occasional *ar nucleus.
x195 25' TF x260 19' TF
NGC 435 Galaxy *
RA: 01h 13m 59.8s Dec: +02° 04' 15"
Mag: 14.8 (P) S.B.: --- B-V: --- Size: 1.1'x0.4' Class: SAB(s)d:
P.A.: 20 Inclination: 6 R.V.: --- Source: RC3 *
Found about 4' NNE of a 9th mag * and is a very small faint to mod faint, slightly elong eg that points back at that * so in about PA 30, small oval halo, 30 x 10" mod low to quite low SB halo brightening broadly and slightly to the axis nr centre but with no apparent core or nucleus.
x195 25' TF x260 19' TF
NGC 445 Galaxy *
RA: 01h 14m 52.6s Dec: +01° 55' 05"
Mag: 15.1 (P) S.B.: ---B-V: --- Size: 0.7'x0.5' Class: S0 pec:
P.A.: 133 Inclination: --- R.V.: --- Source: RC3 *
MCG +0-4-52 (PGC 4486) Galaxy *
RA: 01h 14m 38.5s Dec: +01° 49' 46"
Mag: 14.7 (P) S.B.: --- B-V: --- Size: 1.0'x0.7' Class: SBab
P.A.: 130 Inclination: 1 R.V.: --- Source: RC3 *
PGC 4503 Galaxy *
RA: 01h 14m 57.4s Dec: +01° 47' 52"
Mag: 15.2 S.B.: --- B-V: --- Size: 0.6'x0.5' Class:
P.A.: 135 Inclination: --- R.V.: --- Source: PGC *
x260: -445 and the two others form a NW pointing I tri about 15' on the two long sides and about 6' between the two non NGC egs that are at the SE vertices of the tri.
-445 is the brightest by some way, small, 20-30" diameter, round halo brightening slightly and evenly to centre is a faint *ar nucleus.
MCG +0-4-52 is the next brightest and perhaps a marginally brighter than NGC 445, though it is lower in SB. 30" diameter or a little larger, faint round LSB halo brightening weakly to centre with a v/faint *ar nucleus.
PGC 4503 is the faintest of the three, small round 20" diameter halo growing weakly to centre with a whiff of an extremely faint occasional *ar nucleus.
x195 25' TF x260 19' TF
IC 78 Galaxy *
RA: 01h 08m 47.8s Dec: -15° 50' 42"
Mag: 13.8 S.B.: --- B-V: --- Size: 2.2'x0.9' Class: SA(rs)a pec:
P.A.: 125 Inclination: --- R.V.: --- Source: RC3 *
IC 79 Galaxy *
RA: 01h 08m 49.8s Dec: -15° 56' 57"
Mag: 14.5 S.B.: --- B-V: --- Size: 0.9'x0.6' Class: SA0-
P.A.: 155 Inclination: --- R.V.: +12534 Source: RC3 *
IC 82 Galaxy *
RA: 01h 09m 05.8s Dec: -16° 00' 00"
Mag: 14.5 S.B.: --- B-V: --- Size: 0.7'x0.7' Class: S
P.A.: --- Inclination: --- R.V.: +16111
x195: These three run in a 10' long arc NNW-SSE 78, 79, 82. All three are no worse than mod faint. -78 is the brightest followed by -82 and -79.
-78 is the largest & brightest eg, elong in about PA 135, good mod faint mod LSB about 1.25' x 50". Grows broadly and slightly to centre with no apparent core, zones or nucleus.
-79 is a slightly smaller round eg, 6' S of -79 and has a faint * near the NE edge of the halo -- about mag 15.5. 40" diameter, growing broadly and slightly to centre with an occasional faint *ar nucleus.
-82 is 4' SE of -78 and probably has the best SB, 45" diameter, round mod faint growing broadly and slightly to centre with no apparent core, zones or nucleus. Note R/V, this eg is almost 750mly distant.
x195 25' TF, x260 19' TF
IC 1670A (PGC 4711) Multi-Galaxy Sys *
RA: 01h 18m 48.1s Dec: -16° 48' 08"
Mag: 14.2 S.B.: --- B-V: --- Size: 2.0'x0.5' Class: Sbc? sp
P.A.: 131 Inclination: --- R.V.: --- Source: RC3 *
IC 1670B (PGC 4707) Multi-Galaxy Sys *
RA: 01h 18m 52.7s Dec: -16° 48' 12"
Mag: 14.6 S.B.: --- B-V: --- Size: 1.7'x0.6' Class: S0+ pec:
P.A.: 92 Inclination: --- R.V.: --- Source: RC3 *
From Steve Gottlieb's NGC notes: Lewis Swift discovered IC 1670 = Sw XI-17 on 18 Dec 1895 and recorded "vF; pS; lE; wide D * near nf; f of 2." There is nothing at his position, but 6' northwest is this double system. In list XI he called IC 1671 = IC 93 "p[receding] of 2", but these orientations are reversed.
These two eg are in contact E-W of each other, with -B to the E.
x260: Almost share a common envelope, -B is decidedly the brighter and has the better S.B and is more oval of the two and is an elong eg in about PA 120, small, faint eg 30 x 20" halo growing broadly and slightly to centre where there is a small slightly brighter stellaring in the centre. -A is imm W.
A is in PA 120, or 135, more elong, spindle-shaped probably 30 x 10”, weak faint halo with very LSB outer halo, tips there only intermittently. Brightens weakly to centre with no apparent core, zones or nucleus.
Best,
L.
