ngcles
14-01-2008, 09:41 PM
Hi All,
Just thought I'd post my recorded observations for last Friday night at my southern highlands site. There was a lot of other stuff we looked at including all the summer favourites but these are the recorded observations I made in cleaning out the last galaxies on my list for Reticulum.
Telescope is a 46cm (18") f/4.9 Dobsonian mounted newtonian. Eyepieces used for all these observations were 9mm TI Nagler x247 and 12mm T II x185. The ZLM was about 6.1-6.2 and I'd rate the seeing at 5/10.
The first observation is the "Pyxis Globular", the rest are galaxies.
x185 27' TF
x247 20' TF
Pyxis Cluster Globular Cluster *
RA: 09h 07m 57.8s Dec: -37° 13' 17"
Mag: 12.9 Mag V(tip): 15.2 Mag V(HB): 18.7
B-V (tip): --- Size: 4.0' Class: R.V.: --- Source: Archinal *
This is not a certain observation, but I think intermittently I can see it . Appears just to the E of the mid-point of mag 7 & mag 8 *s that are aligned N-S about 13' apart. There are a row of 3 similarly bright mag 12 *s that are not quite evenly spaced. It is near the mid-most of those stars. Intermittent detection possible as a 2.5' diameter round patch of gossamer with no central brightening with about 3 or 4 15th & 16th magnitude *s sewn over. Looks nothing like a GC -- more like a field irregularity. Very populous field.
x185 27' TF
IC 1960 Galaxy *
RA: 03h 32m 33.5s Dec: -57° 12' 27"
Mag: 15.1 (P) S.B.: --- B-V: ---
Size: 1.1'x0.2' Class: Sab? sp P.A.: 114
Inclination: --- R.V.: --- Source: RC3
This is a very, very faint and very small eg, took a while to pick up. Perhaps just 15" diameter elong indefinitely in PA 90 with a mag 15 * just to the N by 1' of the eg. No apparent central brightening. Very, very faint.
x185 27' TF
IC 1980 Galaxy *
RA: 03h 36m 59.0s Dec: -57° 58' 24"
Mag: 14.9 (P)S.B.: ---B-V: ---Size: 1.1'x0.4'
Class: Sb? sp pec P.A.: 19 Inclination: ---
R.V.: ---Source: RC3 *
This took a long time to finally see, it is a very faint eg. It is superimposed (almost) on a 12th magnitude * seeming to grow out of that star to the N. Very tiny and faint, 15" dia as a very LSB spot with no central brightening. Hardly worth the effort!
x185 27' TF
x247 20' TF
IC 1987 Multi-Galaxy Sys *
RA: 03h 40m 11.7s Dec: -55° 03' 30"
Mag: 15.9 S.B.: --- B-V: ---
Size: 0.5'x0.4' Class: E P.A.: 131
Inclination: --- R.V.: +13920 Source: PGC *
Note the R.V!! This is also a very to extremely faint and small eg that is thankfully a little larger and brighter and larger than IC 1960 and IC 1980 (previous). Found due W by 6' from a mag 9 * and presents as a small very LSB spot of haze about 30" dia with a slight broad central brightening and no evidence of zones or nucleus.
x185 27' TF
x247 20' TF
NGC 1463 Galaxy *
RA: 03h 46m 15.6s Dec: -59° 48' 36"
Mag: 14.3 (B) S.B.: 12.2 B-V: +0.79
Size: 1.3'x1.1' Class: (R)SA(rs)a? P.A.: 45
Inclination: --- R.V.: --- Source: RC3 *
Not too bad, found pretty much due N from a 9th mag * by about 13' and almost between a couple of mag 12 *s that are aligned E-W and sep by about 4'. It is pretty small, 40-50" diameter, round with a broad, slight central brightening and seems to have a very small weakly brighter zone in the centre but no real nucleus. Very diffuse edges. Maybe 40" diameter.
x185 27' TF
x247 20' TF
IC 2010 Galaxy *
RA: 03h 51m 58.0s Dec: -59° 55' 47"
Mag: 14.4 (B) S.B.: 12.9 B-V: +0.67
Size: 1.1'x0.4' Class: Sa? P.A.: 71
Inclination: --- R.V.: --- Source: RC3 *
Faint but not quite as bad as some tonight! Presents as a very, very small faint fat lens shaped spindle eg maybe 40" x 15" in PA 45 with a slight azonal brightening to the centre. There are a couple of = br mag 12.5 *s to its N with which the eg makes a 3' long I tri.
x185 27' TF
x247 20' TF
IC 2014 Galaxy *
RA: 03h 55m 21.7s Dec: -56° 44' 46"
Mag: 15.5 (P) S.B.: --- B-V: ---
Size: 1.1'x0.5' Class: SB(s)c: P.A.: 17
Inclination: --- R.V.: +10319 Source: RC3 *
Again, note the R.V. This is an exceptionally faint eg that is found to the W by about 3' from a very faint mags 12 & 13 pair. It is very very small, maybe 20" diameter patch of gossamer, round and only occasionally visible. No structure discernible. Very nasty!!
x185 27' TF
x247 20' TF
NGC 1503 Galaxy *
RA: 03h 56m 33.3s Dec: -66° 02' 27"
Mag: 14.4 (P) S.B.: --- B-V: ---
Size: 0.8'x0.6' Class: SB(rs)0+? P.A.: 140
Inclination: --- R.V.: --- Source: RC3 *
This is pretty much immediately visible, certainly faint but not too hard to see. Makes a RA Tri with a couple of mag 12 & 13 *s 3' and 5' distant to the N and NE respectively. Pretty small, 20-30" diameter, maybe slightly elong in PA 90 and grows slightly and broadly to the centre azonally without apparent core or nucleus.
Pt 2 to follow
Best,
Les D
Contributing Editor
AS&T
Just thought I'd post my recorded observations for last Friday night at my southern highlands site. There was a lot of other stuff we looked at including all the summer favourites but these are the recorded observations I made in cleaning out the last galaxies on my list for Reticulum.
Telescope is a 46cm (18") f/4.9 Dobsonian mounted newtonian. Eyepieces used for all these observations were 9mm TI Nagler x247 and 12mm T II x185. The ZLM was about 6.1-6.2 and I'd rate the seeing at 5/10.
The first observation is the "Pyxis Globular", the rest are galaxies.
x185 27' TF
x247 20' TF
Pyxis Cluster Globular Cluster *
RA: 09h 07m 57.8s Dec: -37° 13' 17"
Mag: 12.9 Mag V(tip): 15.2 Mag V(HB): 18.7
B-V (tip): --- Size: 4.0' Class: R.V.: --- Source: Archinal *
This is not a certain observation, but I think intermittently I can see it . Appears just to the E of the mid-point of mag 7 & mag 8 *s that are aligned N-S about 13' apart. There are a row of 3 similarly bright mag 12 *s that are not quite evenly spaced. It is near the mid-most of those stars. Intermittent detection possible as a 2.5' diameter round patch of gossamer with no central brightening with about 3 or 4 15th & 16th magnitude *s sewn over. Looks nothing like a GC -- more like a field irregularity. Very populous field.
x185 27' TF
IC 1960 Galaxy *
RA: 03h 32m 33.5s Dec: -57° 12' 27"
Mag: 15.1 (P) S.B.: --- B-V: ---
Size: 1.1'x0.2' Class: Sab? sp P.A.: 114
Inclination: --- R.V.: --- Source: RC3
This is a very, very faint and very small eg, took a while to pick up. Perhaps just 15" diameter elong indefinitely in PA 90 with a mag 15 * just to the N by 1' of the eg. No apparent central brightening. Very, very faint.
x185 27' TF
IC 1980 Galaxy *
RA: 03h 36m 59.0s Dec: -57° 58' 24"
Mag: 14.9 (P)S.B.: ---B-V: ---Size: 1.1'x0.4'
Class: Sb? sp pec P.A.: 19 Inclination: ---
R.V.: ---Source: RC3 *
This took a long time to finally see, it is a very faint eg. It is superimposed (almost) on a 12th magnitude * seeming to grow out of that star to the N. Very tiny and faint, 15" dia as a very LSB spot with no central brightening. Hardly worth the effort!
x185 27' TF
x247 20' TF
IC 1987 Multi-Galaxy Sys *
RA: 03h 40m 11.7s Dec: -55° 03' 30"
Mag: 15.9 S.B.: --- B-V: ---
Size: 0.5'x0.4' Class: E P.A.: 131
Inclination: --- R.V.: +13920 Source: PGC *
Note the R.V!! This is also a very to extremely faint and small eg that is thankfully a little larger and brighter and larger than IC 1960 and IC 1980 (previous). Found due W by 6' from a mag 9 * and presents as a small very LSB spot of haze about 30" dia with a slight broad central brightening and no evidence of zones or nucleus.
x185 27' TF
x247 20' TF
NGC 1463 Galaxy *
RA: 03h 46m 15.6s Dec: -59° 48' 36"
Mag: 14.3 (B) S.B.: 12.2 B-V: +0.79
Size: 1.3'x1.1' Class: (R)SA(rs)a? P.A.: 45
Inclination: --- R.V.: --- Source: RC3 *
Not too bad, found pretty much due N from a 9th mag * by about 13' and almost between a couple of mag 12 *s that are aligned E-W and sep by about 4'. It is pretty small, 40-50" diameter, round with a broad, slight central brightening and seems to have a very small weakly brighter zone in the centre but no real nucleus. Very diffuse edges. Maybe 40" diameter.
x185 27' TF
x247 20' TF
IC 2010 Galaxy *
RA: 03h 51m 58.0s Dec: -59° 55' 47"
Mag: 14.4 (B) S.B.: 12.9 B-V: +0.67
Size: 1.1'x0.4' Class: Sa? P.A.: 71
Inclination: --- R.V.: --- Source: RC3 *
Faint but not quite as bad as some tonight! Presents as a very, very small faint fat lens shaped spindle eg maybe 40" x 15" in PA 45 with a slight azonal brightening to the centre. There are a couple of = br mag 12.5 *s to its N with which the eg makes a 3' long I tri.
x185 27' TF
x247 20' TF
IC 2014 Galaxy *
RA: 03h 55m 21.7s Dec: -56° 44' 46"
Mag: 15.5 (P) S.B.: --- B-V: ---
Size: 1.1'x0.5' Class: SB(s)c: P.A.: 17
Inclination: --- R.V.: +10319 Source: RC3 *
Again, note the R.V. This is an exceptionally faint eg that is found to the W by about 3' from a very faint mags 12 & 13 pair. It is very very small, maybe 20" diameter patch of gossamer, round and only occasionally visible. No structure discernible. Very nasty!!
x185 27' TF
x247 20' TF
NGC 1503 Galaxy *
RA: 03h 56m 33.3s Dec: -66° 02' 27"
Mag: 14.4 (P) S.B.: --- B-V: ---
Size: 0.8'x0.6' Class: SB(rs)0+? P.A.: 140
Inclination: --- R.V.: --- Source: RC3 *
This is pretty much immediately visible, certainly faint but not too hard to see. Makes a RA Tri with a couple of mag 12 & 13 *s 3' and 5' distant to the N and NE respectively. Pretty small, 20-30" diameter, maybe slightly elong in PA 90 and grows slightly and broadly to the centre azonally without apparent core or nucleus.
Pt 2 to follow
Best,
Les D
Contributing Editor
AS&T