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Old 10-08-2018, 11:24 PM
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ngcles
The Observologist

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Join Date: Dec 2006
Location: Billimari, NSW Central West
Posts: 1,664
Obervations 9th August 2018 Pt 2/2

Cont/

x195 25' TF
NGC 7168 Galaxy *
RA: 22h 02m 07.7s Dec: -51° 44' 34"
Mag: 12.9 (B) S.B.: 12.3 B-V: +0.93 Size: 2.0'x1.4' Class: E3
P.A.: 68 Inclination: --- R.V.: +2749 Source: RC3 *

PGC 101233 Galaxy*
RA 22h 02m 18.1s Dec -51° 47' 08"
Mag: ? S.B: ? B-V: ? Size: 0.9' x 0.6' Class: ?
PA: ? Inclination: ? R.V: ? Source: Sky View
Small, easy to see mod faint eg that seems round or weakly elong in about PA 30, 1.25 x 1' growing at first weakly to centre where there is a small, weakly elong in the same PA mod brighter core and occasional *ar nucleus. A mag 14.5 * is a little off the halo SE of centre. 3' SE is PGC 101233.

-233 is 3' SE of -68 and is a weak-edged faint spot about 40" diameter brightening slightly and evenly to centre where there is an occasional small faint sub*ar spot in the centre.

x195 25' TF
NGC 7179 Galaxy *
RA: 22h 04m 49.4s Dec: -64° 02' 50"
Mag: 13.3 (B) S.B.: 13.2 B-V: +0.57 Size: 2.0'x0.8' Class: SB(rs)bc
P.A.: 48 Inclination: --- R.V.: +2890 Source: RC3 *

This is a small oval mod LSB mod faint eg that isn't too hard to see. Has two superimposed faint *s. The eg is in PA 45, the two stars underline the SE flank just on the edge of the halo just inside the NE and SW tips respectively mags 15.5 and 16 respectively. Narrow oval 1.5 x 30", mod LSB halo brightening broadly and slightly to centre where there is a small, elong slightly brighter core zone that at times appears to contain a sub *ar nucleus.

Then there was the showpiece PNe of the whole sky – M27.

x156 31' TF
M 27 NGC 6853 Planetary Nebula *
RA: 19h 59m 36.1s Dec: +22° 43' 13"
Mag: 7.6 (P) Size: 6.7' Class: 3+2 Mag C. Star: 13.9
R.V.: --- Source: Str-ESO *
This is a very bright and very large PNe that is one of the most, if not THE most spectacular in the sky. Big thing, maybe 9 x 7' in about PA 120. The oval disc exhibits a fat hourglass or apple-core across the minor axis that is in this aperture only slightly brighter and of better SB than the two "ends" of the halo at the Maj.A extremities. Oval. Truly spectacular. The brighter regions of the hourglass at x195 exhibit some degree of faint mottling and uneven surface brightness with small irregularities in the outer edges of the halo and there are in total 9 *s peppered over the surface in a starry field. Reacts fairly strongly to the UHC and x156. Without filter seems weakly greenish There is a mag 14 * dead centre that I presume is the central *.

x195 25' TF
NGC 7200 Galaxy *
RA: 22h 07m 09.5s Dec: -49° 59' 43"
Mag: 13.8 (B) S.B.: 12.4 B-V: +0.91 Size: 1.6'x1.2'
Class: E+: P.A.: 33 Inclination: --- R.V.: +2887 Source: RC3 *
A fairly easy to see eg that is in PA 45, pretty good SB and is SW of a mag 15 * by 1.5'. Small oval halo 50 x 40"growing slightly to a largish mod brighter core region with a spot-type non *ar nucleus, overall pretty easy to see.

x195 25' TF
NGC 7216 Galaxy *
RA: 22h 12m 35.6s Dec: -68° 39' 40"
Mag: 13.5 (B) S.B.: 12.4 B-V: +0.95 Size: 1.7'x1.0' Class: SA(rs)0-:
P.A.: 133 Inclination: --- R.V.: +3468 Source: RC3 *
Possesses fairly good SB for such a small eg. Small weakly oval halo in PA 135, no *s in its imm vicinity. Off-round 50 x 40" in PA 135. Seems to be an elliptical eg type brightness profile. Grows from weak edges, slightly at first and then mod & evenly to a small sub *ar spot in the centre that is pretty prominent. Not at all hard to see.

x195 25' TF
IC 5158 Galaxy *
RA: 22h 06m 24.6s Dec: -67° 31' 03"
Mag: 15.2 (P) S.B.: --- B-V: --- Size: 0.9'x0.5' Class: SB(s)m: P.A.: 43
Inclination: --- R.V.: --- Source: RC3 *
This is a small very faint and low SB eg that took a while to pick up in the ep. Few arc mins SW from an 11th mag * Probably 40-odd arc seconds diameter, round ephemeral glow of v/LSB that has no apparent structure brightening weakly to centre.

x195 25' TF x260 19' TF
IC 5173A Multi-Galaxy Sys *
RA: 22h 14m 45.3s Dec: -69° 21' 56"
Mag: 15.9 S.B.: --- B-V: --- Size: 1.0'x0.3'Class: S
P.A.: 78 Inclination: --- R.V.: --- Source: PGC *
Very faint and very, very LSB small eg, seems elong in PA 90 as a small, ephemeral streak of gossamer about 1' x 15" brightening weakly to the axis nr centre but no apparent core or nucleus. Not easy.
Near the end of the session, I dropped in on an old friend, the ring-form lenticular galaxy NGC 7702 in Phoenix. Over the last 15-odd years I’ve observed it many times in the hope of seeing the “ring” as separate from the core as in the photo. It has a remarkable appearance on the DSS – it looks like a botched, underexposed image of Saturn. Tonight, at last, I was successful in seeing “the ring”:

x260 19' TF, x346 14' TF and x156 31' TF
NGC 7702 Galaxy *
RA: 23h 35m 29.1s Dec: -56° 00' 45"
Mag: 13.1 (B) S.B.: 12.5 B-V: +0.92 Size: 2.2'x1.2' Class: (R)SA(r)0+
P.A.: 117 Inclination: --- R.V.: +3122 Source: RC3 *
Small and pretty bright eg with good SB, elong in PA 120. oval, about 1.5 x 1.2' with a broad, moderate brightening to centre which is bright and possesses very good SB but no definite core boundary or nucleus.
Examined for several minutes at higher magnifications to see the "ring" in this ring-form lenticular eg but gave up and swapped the 20mm TII in before slewing to another object. Surprised that on re-focusing, with A.V, the ring is occasionally, fleetingly visible as shown in the DSS image at x156. Went back to the 9mm again and it was very faintly visible in moments of good seeing -- once you know what you're looking for.

Lastly I dropped in on the one of the least-known and least observed G.Cs in the sky – NGC 7492. There are two Messier G.Cs in Aquarius, M2 & the frequently disappointing M72. The latter is probably the least impressive G.C in Messier‘s list of “not-a-comets”. NGC 7492 is much fainter – at best a marginal object for 8-10” ‘scopes, it is one of the most sparse G.Cs attached to the Milky Way. However in 63.5cm, it’s not a bad object and even shows a deal of resolution:

x195 25' TF x156 31' TF
NGC 7492 Globular Cluster *
RA: 23h 08m 26.7s Dec: -15° 36' 41"
Mag: 11.2 Mag V(tip): 15.5 Mag V(HB): 17.6B-V (tip): ---
Size: 4.2' Class: R.V.: --- Source: Archinal *
Been a long time since I last observed this cluster and it is actually a nice object in this aperture. Easily seen and pretty well resolved, about 4 arc mins diameter, round, weakly compressed to centre with no apparent core. two dozen-odd resolved stars magnitudes 15.5 down to threshold peppered over a misty background. Slightly ragged edges

Best,

L.
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