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Old 13-04-2008, 06:02 PM
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ngcles
The Observologist

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Join Date: Dec 2006
Location: Billimari, NSW Central West
Posts: 1,585
30 hrs in Heaven -- Observing report Mudgee Star Party NGCLes (Pt 6)

Pt 6 ...

x185 27' TF

NGC 3663 Galaxy *
RA: 11h 23m 59.8s Dec: -12 17' 44"
Mag: 13.3 S.B.: --- B-V: --- Size: 1.9'x1.3'
Class: SA(rs)bc pec P.A.: 72 Inclination: --- R.V.: +5040 Source: RC3 *

This is a fairly small fairly faint eg which has a mag 13 and another mag 14 * on the E edge of the halo -- the brighter * is closest and just touching the halo. Seems round, 1.25' diameter or just over with fairly ill-defined edges growing broadly and slightly to centre. No evidence of zones or nucleus. Pretty blank field.



x185 27' TF

NGC 3763 IC 714 Galaxy *
RA: 11h 36m 30.4s Dec: -09 50' 47"
Mag: 13.5 S.B.: --- B-V: --- Size: 1.1'
Class: SAB(rs)c pec P.A.: --- Inclination: --- R.V.: --- Source: RC3 *

This is a small and pretty faint eg appears to the SW of Mag 4 Theta Crateris. Seems just under 1' diameter. Looks really peculiar on the DSS but visually is ordinary. Quite LSB haze growing weakly if at all to centre without apparent core or nucleus.



x185 27' TF

IC 2856 Galaxy *
RA: 11h 28m 16.2s Dec: -12 53' 25"
Mag: 14.5 S.B.: --- B-V: --- Size: 0.8'x0.3'
Class: Sab P.A.: 47 Inclination: --- R.V.: --- Source: PGC *

This is a pretty small faint eg found by about 6' SW from a distinctive box made of of mag 11 & 12 *s. 40-50" diameter reasonable SB growing broadly and slightly to centre where there is a small, somewhat brighter small stellaring in the centre. Not too hard to see but very small.



x185 27' TF

NGC 3836A NGC 3836 Multi-Galaxy Sys *
RA: 11h 43m 30.0s Dec: -16 47' 51"
Mag: 13.5 S.B.: --- B-V: --- Size: 1.4'x1.4'
Class: Sb pec? P.A.: --- Inclination: --- R.V.: +3674 Source: RC3 *

This is a really peculiar looking little eg, both on the DS and in the eyepiece. Mod to quite faint it is a small lens or fat bar shaped object of pretty consistent lowish SB mist that grows slightly to centre. It is elong about 1.25 x 30" in PA 120 but has no apparent core or nucleus. A tiny occasional outer halo seems to occasionally surround it to a slightly greater area. There is a mag 14 * just N of the E end of the halo and strangely a little tiny tail/trail of mist seems to curl off the E end firstly heading N and then W to terminate at that star. Intriguing!

The DSS pic shows a very unusual looking galaxy (s):

http://stdatu.stsci.edu/cgi-bin/dss_...e&fov=NONE&v3=


By now it was just after 11pm and Virgo hour! The SQM reading at 11pm showed 21.77 = +6.52.



x185 27' TF

IC 716 Galaxy *
RA: 11h 39m 03.1s Dec: -00 12' 20"
Mag: 14.8 (P) S.B.: --- B-V: ---
Size: 1.6'x0.2' Class: Sbc pec sp P.A.: 132 Inclination: 7
R.V.: +5429 Source: RC3

This is a very tiny and skinny, faint streak of mist in PA 135 only 30" x 5" in . It grows broadly and mod to the axis nr centre but no evidence of any core or nucleus. Points at a mag 12 * 4' away to the NW.



x185 27' TF

IC 718 Galaxy *
RA: 11h 39m 52.9s Dec: +08 52' 32"
Mag: 14.5 (P) S.B.: --- B-V: ---
Size: 1.2'x0.5' Class: Im: P.A.: 178
Inclination: --- R.V.: +1982 Source: RC3 *

IC 719 Galaxy *
RA: 11h 40m 18.5s Dec: +09 00' 34"
Mag: 14.1 (P) S.B.: 13.7 B-V: ---
Size: 1.2'x0.3' Class: S0? P.A.: 52
Inclination: 6 R.V.: +1659 Source: RC3 *

-718 us a very faint eg found in a pretty blank field about 10' from a mag 10 * to the eg s SW. A tiny non-descript patch of haze with a possible weak central brightening. Forms a RA tri with 2 *s 6-8' distant mags 13 and these two stars traced to the NE 2x their length brings us to -719.

-719 is somewhat brighter, still faint lengthened haze, 1.25 x 10" seeming an edge on eg in PA 45, growing broadly and mod to the axis nr centre with a hint of a weakly brighter tiny streaky core, barely brighter than the halo.



x185 27' TF

IC 720 Multi-Galaxy Sys *
RA: 11h 42m 22.3s Dec: +08 46' 04"
Mag: 14.3 S.B.: --- B-V: --- Size: 1.1'x0.5'
Class: S? P.A.: 8 Inclination: --- R.V.: +6587 Source: RC3 *

This eg is found 7' to the NW of a mag 10.5 * as a fairly small, somewhat elong patch of haze in about 1' in PA 0 about 1' x 30" of fairly consistent SB, Seems kens-shaped and grows broadly and weakly to centre without zones of nucleus. There is a mags 12/13 pair to the N by a few arc mins. pointing at it.



x185 27' TF

IC 728 Galaxy *
RA: 11h 44m 50.3s Dec: -01 36' 07"
Mag: 14.4 (P) S.B.: --- B-V: --- Size: 1.2'x0.6'
Class: SB(rs)b P.A.: 65 Inclination: 5 R.V.: --- Source: RC3 *

In a field which is pretty barren even for Virgo, this is a very small quite non-descript patch of faint haze at best 30" diameter, very LSB growing in brightness weakly to the core and seeming to have an extremely faint stellaring in the centre hardly brighter than the halo. Round.



x185 27' TF

IC 730 Galaxy *
RA: 11h 45m 35.3s Dec: +03 13' 48"
Mag: 14.7 (P) S.B.: --- B-V: --- Size: 0.8'x0.5'
Class: S0/a pec? P.A.: 36 Inclination: --- R.V.: --- Source: RC3 *

This is a very barren field and a very tiny scrap of haze about 20" diameter has a consistent, very, very LSB with no apparent central brightening. Round.



x185 27' TF

IC 741 Galaxy *
RA: 11h 50m 31.8s Dec: -04 50' 09"
Mag: 14.0 S.B.: --- B-V: --- Size: 0.6'x0.3' Class: S0/a
P.A.: 137 Inclination: --- R.V.: --- Source: PGC

Again a very blank field and a very very tiny almost invisible eg that is 10' E of a 10th mag * that has a couple of fainter companions. Tiny round scrap of haze that seems to contain a brighter stellaring at centre but no other detail.



x185 27' TF

IC 2963 Galaxy *
RA: 11h 49m 24.4s Dec: -05 07' 04"
Mag: 14.5 S.B.: --- B-V: --- Size: 1.4'x0.3'
Class: S0+: sp P.A.: 102 Inclination: --- R.V.: --- Source: RC3 *

This is in an adjacent field to IC 728 and is somewhat brighter and easily seen. Seems to be an edge on or highly inclined spiral in PA 90 with a very faint star within the halo at mag 14. Seems in the order of 1.5' x 10" growing broadly and slightly to the axis azonally, without apparent core or nucleus. Lowish but Okay SB.



x185 27' TF

IC 748 Galaxy *
RA: 11h 57m 26.8s Dec: +07 27' 38"
Mag: 16.0 S.B.: --- B-V: --- Size: 0.5'x0.4'
Class: P.A.: 56 Inclination: --- R.V.: --- Source: PGC *

This is an extremely tiny and faint eg, 15" or so in diameter, round very LSB growing evenly and slightly to centre and at centre there seems to be a tiny faint stellaring that is hardly brighter than the halo.



x185 27' TF

IC 748 Galaxy *
RA: 11h 57m 26.8s Dec: +07 27' 38"
Mag: 16.0 S.B.: --- B-V: --- Size: 0.5'x0.4'
Class: P.A.: 56 Inclination: --- R.V.: --- Source: PGC *

This is an extremely tiny and faint eg, 15" or so in diameter, round very LSB growing evenly and slightly to centre and at centre there seems to be a tiny faint stellaring that is hardly brighter than the halo.



x185 27' TF

IC 756 Galaxy *
RA: 12h 02m 57.8s Dec: +04 50' 45"
Mag: 14.3 (P) S.B.: --- B-V: --- Size: 1.8'x0.7'
Class: (R')SA(s)c: P.A.: 102 Inclination: 6
R.V.: --- Source: RC3 *

This eg makes a small almost RA tri with a couple of mag 14 *s appearing as a pretty small elong haze about 1' x 15" in about PA 90 with a slight, broad central brightening azonally to centre with no evidence of core or nucleus.



x185 27' TF

IC 2990 Galaxy *
RA: 12h 04m 38.5s Dec: +11 03' 00"
Mag: 15.4 S.B.: --- B-V: --- Size: 0.7'x0.3'
Class: P.A.: 19 Inclination: --- R.V.: --- Source: PGC *

This is an exceptionally tiny and very very faint scrap of mist 15" diameter with a broad slight central brightening with no evidence of core or nucleus. There are a couple of faint *s near it 1 to the N is 2' away mag 14.



x185 27' TF

IC 3013 Galaxy *
RA: 12h 08m 25.7s Dec: +10 01' 01"
Mag: 15.1 S.B.: --- B-V: --- Size: 0.9'x0.7'
Class: S R P.A.: 145 Inclination: --- R.V.: --- Source: PGC *

This is another extremely small and faint eg probably no more than 15" diameter, round and of very low consistent SB No evidence of core or nucleus.



x185 27' TF

IC 3021 Galaxy *
RA: 12h 09m 54.6s Dec: +13 03' 01"
Mag: 14.9 (P) S.B.: --- B-V: --- Size: 1.1'x0.6'
Class: Sm P.A.: 0 Inclination: --- R.V.: +2537 Source: RC3 *

This eg appears adjacent to a mag 11 * which is part of a small box of similar stars. Extremely faint and very small, found to the NE by about 45" from that star as a tiny scrap of 15" diameter mist with observable central brightening.

Pt 7 to follow ...
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