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Observing report 6-7th February 2016
Hi All,
Just thought I'd post some observations made from home at Billimari in a session that commenced about 23:00 on the 7th and concluded about 01:30 on the 8th February 2016. All are with my 46cm f/4.9 and conditions were as follows. 18 deg C no wind, cloud or dew. I rated the seeing at 5/10 at the commencement deteriorating to 4/10 near the very end. The SQM-L reading at the commencement was +21.84 and +21.88 at the conclusion.
The objects are all galaxies commencing in Pyxis, then Canis Minor and concluding in Cancer.
x185 27' TF
NGC 2772 Galaxy *
RA: 09h 07m 41.7s Dec: -23° 37' 03"
Mag: 14.2 (P) S.B.: --- B-V: --- Size: 1.5'x0.8' Class: Sb: pec sp
P.A.: 166 Inclination: --- R.V.: --- Source: RC3 *
This is a small but quite elong streak of faint haze. Quite faint and of very LSB 1.75' x 10" in PA 0. The tips of this obviously edge-on spiral eg are very faint and uncertain, brightens along the axis weakly to center where there is a small, weakly brighter elong core area but no apparent nucleus.
x185 27' TF
NGC 2883 Multi-Galaxy Sys *
RA: 09h 25m 18.3s Dec: -34° 06' 13"
Mag: 16.0 S.B.: --- B-V: --- Size: 2.7'x0.8' Class: IB(s)m pec:
P.A.: 169 Inclination: --- R.V.: --- Source: RC3 *
On the plate, this is a very peculiar-looking eg. Through the ep it is less interesting. Found to the N of a little group/bunch of mags 13 - 15 *s, it is partly immersed in them. Appears as a slightly unevenly lit and SB splotch with no definite edges 1.25 x 1' in PA 0. SB is low but not too bad, whole think looks weakly blotchy with no brightening trend to center.
x185 27' TF
NGC 2499 Galaxy *
RA: 07h 58m 51.8s Dec: +07° 29' 33"
Mag: 14.9 S.B.: --- B-V: --- Size: 1.1'x0.7' Class: SBc
P.A.: 39 Inclination: --- R.V.: --- Source: PGC *
This is an extremely tiny and faint spot of gossamer a couple of arc mins NE of a RA tri of mags 11-12 *s that is only intermittently visible. 10-15" diameter spot of extremely low and consistent SB gossamer.
x185 27' TF
NGC 2513 Galaxy *
RA: 08h 02m 24.7s Dec: +09° 24' 50"
Mag: 12.6 (B) S.B.: 13.3 B-V: +0.99 Size: 2.5'x2.0' Class: E
P.A.: 169 Inclination: --- R.V.: +4662 Source: RC3 *
NGC 2511 Galaxy *
RA: 08h 02m 14.9s Dec: +09° 23' 42"
Mag: 15.1 (P) S.B.: --- B-V: --- Size: 0.8'x0.3' Class: S?
P.A.: 124 Inclination: --- R.V.: +4467 Source: RC3 *
NGC 2510 Galaxy *
RA: 08h 02m 10.6s Dec: +09° 29' 09"
Mag: 14.4 (P) S.B.: --- B-V: --- Size: 1.3'x0.7' Class: S0:
P.A.: 117 Inclination: 3 R.V.: --- Source: RC3 *
Of these three -13 is the brightest while -11 and -10 are nearby, 2.5' SW and 5' NNW respectively.
-13 is a pretty obvious good SB but small eg, 1' diameter or slightly smaller, round growing in brightness broadly and slightly at first, and then moderately to center. Makes a near RA tri about 2.5' a side with 11th & 12th mag *s to the N and NW respectively.
-11 is 2.5' SW and is of similar size, slightly smaller, 40" diameter, round and of lower SB. brightening slightly to center.
-10 is 5' NW and is similar to -11 though 30-40" diameter, mod faint brightening slightly to center with no clear zones or nucleus. Round or possibly off-round in PA 90?
x185 27' TF
IC 494 Galaxy *
RA: 08h 06m 24.2s Dec: +01° 02' 14"
Mag: 14.1 (P) S.B.: --- B-V: --- Size: 1.3'x0.6' Class: SA0^:
P.A.: 50 Inclination: 5 R.V.: --- Source: RC3 *
This eg is found about 10' SSE from a mag 8 * that is distinctly yellowish. Small, spiral in about PA 60, of low but reasonable SB growing slightly and broadly to center where there is a small, round, slightly brighter core/nucleus. 40 x 30".
x185 27' TF
IC 498 Galaxy *
RA: 08h 09m 30.2s Dec: +05° 16' 49"
Mag: 14.3 S.B.: --- B-V: --- Size: 1.2'x1.1' Class: S
P.A.: 59 Inclination: 1 R.V.: --- Source: PGC *
This eg wasn't immediately visible but is found to the W by 9' from a 9th mag * and it has a little squat "T" shaped asterism of 13th & 14th mag *s to its south. Small, roughly round patch of low SB mist, possible slight elong in PA 90 1 x 50", weak brightening to center with no apparent core or nucleus.
x185 27' TF
IC 2231 Multi-Galaxy Sys *
RA: 08h 11m 01.6s Dec: +05° 05' 14"
Mag: 14.4 S.B.: --- B-V: --- Size: 1.4'x1.2' Class: E:
P.A.: 117 Inclination: --- R.V.: --- Source: RC3 *
In a fairly starry field, this is a pretty obvious and has an embedded mag 13.5 * on the W side of the halo. Seems round, 1' diameter or possibly slightly larger grows broadly and slightly to center where there is a small round slightly brighter core-zone though no apparent nucleus. Difficult to gauge the core zone because the distracting * lies just outside it.
x185 27' TF
NGC 2538 Galaxy *
RA: 08h 11m 22.8s Dec: +03° 38' 03"
Mag: 13.5 (P) S.B.: --- B-V: -- Size: 1.4'x1.1' Class: (R')SBa
P.A.: 156 Inclination: 2 R.V.: +3944 Source: RC3 *
This is found only and arcmin or so NW of a mag 12 *. Fairly small but straight forward and elong in about PA 30, 50" x 20" occasionally there seems to be a faint stellaring or stellar nucleus at center. Low consistent SB halo with soft edges.
x185 27' TF x247 20' TF
NGC 2843 Galaxy *
RA: 09h 20m 28.8s Dec: +18° 55' 34"
Mag: --- S.B.: --- B-V: --- Size: 0.5'x0.2' Class:
P.A.: 52 Inclination: --- R.V.: --- Source: PGC *
This is an extremely difficult object and I am unsure whether this is a bare detection or wishful thinking. Certainly not visible at x185. Think I detected a few times over about 5 mins an ephemeral, tenuous spot of gossamer barely south of a 12th mag * at x247, hardly larger than stellar. Doubtful observation. Steve.
x185 27' TF
NGC 2730 Galaxy *
RA: 09h 02m 15.9s Dec: +16° 50' 18"
Mag: 13.5 (P) S.B.: --- B-V: --- Size: 1.7'x1.2' Class: SBdm:
P.A.: 80 Inclination: 2 R.V.: +3830 Source: RC3 *
NGC 2734 Galaxy *
RA: 09h 03m 01.6s Dec: +16° 51' 49"
Mag: --- S.B.: --- B-V: --- Size: 0.6'x0.5' Class:
P.A.: 86 Inclination: --- R.V.: --- Source: PGC *
These two form a wide pair with -34 10' E of -30.
-30 is found a little NW of a couple of mag 11.5 *s and forms a small I tri with them. It has a 14th mag * just off the S halo/flank. Seems slightly elong in PA 90, 1.25' x 50". Lowish SB and grows slightly and broadly to center where there appears to be a very small, slightly brighter core/nucleus.
-34 is smaller and near a little bunch of faint mag 14/15 *s stars. Hardly more than a spot of gossamer, possibly 20" diameter with no structure and V/LSB.
x185 27' TF
NGC 2744 Multi-Galaxy Sys *
RA: 09h 04m 39.1sDec: +18° 27' 50"
Mag: 13.9 (B)S.B.: ---B-V: +0.44Size: 1.6'x1.0'Class: SB(s)ab: pec
P.A.: 124Inclination: ---R.V.: +3397Source: RC3 *
NGC 2749 Multi-Galaxy Sys *
RA: 09h 05m 21.3s Dec: +18° 18' 47"
Mag: 12.7 (B) S.B.: 13.4 B-V: +0.93 Size: 1.8'x1.5' Class: E3
P.A.: 82 Inclination: --- R.V.: +4201 Source: RC3 *
NGC 2752 Multi-Galaxy Sys *
RA: 09h 05m 42.7s Dec: +18° 20' 16"
Mag: 14.5 (P) S.B.: --- B-V: --- Size: 2.1'x0.4' Class: SBb: sp
P.A.: 60 Inclination: 6 R.V.: +4022 Source: RC3 *
NGC 2747Galaxy *
RA: 09h 05m 18.3s Dec: +18° 26' 31"
Mag: 15.5 S.B.: --- B-V: --- Size: 0.6'x0.4' Class:
P.A.: 170 Inclination: --- R.V.: --- Source: PGC *
NGC 2751 Mult-Galaxy Sys *
RA: 09h 05m 32.4s Dec: +18° 15' 43"
Mag: 15.0 S.B.: --- B-V: --- Size: 0.9'x0.6' Class: Sbc
P.A.: 138 Inclination: --- R.V.: --- Source: PGC
NGC 2745 Galaxy *
RA: 09h 04m 39.3s Dec: +18° 15' 26"
Mag: 15.4 S.B.: --- B-V: --- Size: 0.6'x0.5' Class: C
P.A.: 179 Inclination: --- R.V.: --- Source: PGC *
-44, -49 and -52 are the three brightest of this group, the other thre are extremely small and very faint spots of gossamer.
-44 is pointed at from the N by a wide mags 11 & 12 pair a few arcmins away. Not too bad, about 1' diameter, off-round in PA 135 1' x 50", growing broadly and slightly to center. There is a 14th mag * just outside the visible halo in the E. Occasionally seems there is a threshold magnitude stellaring nucleus. -49 is 12' SE.
-49 is an obvious, 1.2' round eg that is of good SB growing broadly and slightly to center where there is a small mod brighter almost stellar core/nucleus. 6' NE is -52.
-52 is pointed at from the NW by an evenly spaced line of three similarly bright mags 11 *s that is 5' long. A LSB spindle shaped sliver of mist 1.25' x 0.1' in PA 60, growing weakly in brightness along the axis to center but has no apparent core/nucleus. At the other end of the line of 3 mags 11*s is -47, found in the position where a 4th star would be.
-47 is an extremely faint and extremely LSB spot of 10" dia gossamer only occasionally detected.
-51 is 4' SE of -49 and almost superimposed on a 13th mag *. Slightly easier than -47 but still a very tiny spot of gossamer no structure.
-45 is 10 SW of -49 and is intermittently visible as an almost stellar spot of gossamer, better than -47 but dimmer than -51.
x185 27' TF
NGC 2764 Galaxy *
RA: 09h 08m 17.5s Dec: +21° 26' 39"
Mag: 13.6 (B) S.B.: 12.0 B-V: +0.76 Size: 1.5'x0.8'
Class: S0: P.A.: 15 Inclination: ---R.V.: +2597Source: RC3 *
This eg is found almost directly between stars of mags 10.5 and 11.0 sep by 5' running almost N-S (the line is in about PA 170). Eg is elong in PA 15, 1.25' x 30" with fair S.B brightens broadly and slightly along the axis toward center but there is no apparent core or nucleus.
x185 27' TF
NGC 2592 Galaxy *
RA: 08h 27m 08.2s Dec: +25° 58' 14"
Mag: 13.3 (P) S.B.: --- B-V: --- Size: 1.7'x1.4' Class: E
P.A.: 45 Inclination: --- R.V.: +1989 Source: RC3 *
NGC 2594 Galaxy *
RA: 08h 27m 17.2s Dec: +25° 52' 44"
Mag: 14.9S.B.: ---B-V: ---Size: 0.8'x0.5'Class: L
P.A.: 43Inclination: --- R.V.: --- Source: PGC *
-92 is the major member of this pair and is fairly bright and forms an I tri with a couple of *s 11th mag to the SE and S 6-7' away. About 1.25' diameter, round, with a small round bright core nucleus. There is a 14th mag * at the edge of the halo W.Not hard to see, goodish SB. -94 is 0.5' N of the 11th mag * S of -92.
-94 is an extremely faint spot of gossamer intermittently visible just N of the star. E/LSB and tiny, almost *ar.
Best,
L.
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