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Old 10-06-2018, 03:12 PM
Tropo-Bob (Bob)
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LUPUS - The Grand Tour

It's time to check out the Wolf. Lupus boarders with Libra, so my Tour is staring to form a continious North-South slice across the sky.


The Main Stars:

Alpha Lupi (Lup): A nearby (460LY) supernova canditate.
https://en.wikipedia.org/wiki/Alpha_Lupi

Beta Lup (Kekouan): Only 25 million years old, yet near the end of its hydrogen phase.
https://en.wikipedia.org/wiki/Beta_Lupi

Gamma Lup: Binary (190 year period) that was widest in 2014. The only measurement I have says 0.8 arc seconds in 1996.
https://en.wikipedia.org/wiki/Gamma_Lupi

Delta Lup: Only 15 million years old, but has already entered the subgiant stage.
https://en.wikipedia.org/wiki/Delta_Lupi

Eplison Lup. Double star; the companion is wide and faint.
https://en.wikipedia.org/wiki/Epsilon_Lupi


Objects of interest.

NGC 5882: Planetary nebula.
https://www.spacetelescope.org/images/potw1114a/

NGC 5824: Globular. Distance 104,000 LY.
https://en.wikipedia.org/wiki/NGC_5824

NGC: 5927: Globular. Distance 25,000 LY. I am so familiar with this globular, as I use it as a marker when checking the nearby site of what was a nova in 1893. I am hoping to catch a recurrence of the nova. I have seen this globular under a 10 day-old Moon with just a 70mm scope. (Admittedly, not well.) I look forward to comparing it to the other 2 globulars in Lupus, which I have not viewed.
https://en.wikipedia.org/wiki/NGC_5927

NGC: 5986: Globular. Distance 34,000LY.
https://en.wikipedia.org/wiki/NGC_5986

NGC:5822. Open cluster. Distance 2,500 LY.
https://en.wikipedia.org/wiki/NGC_5822


Messier Objects: Nil
Caldwell Objects: Nil
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Old 11-06-2018, 09:12 AM
Tropo-Bob (Bob)
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My observations

All 5 mains stars in Lupus were easily visible to my eyes, with Gamma, Delta & Epsilon making up a very obvious triangle. I found it good to know where Lupus is, or rather where Centaurus is no longer dominating.

I used my Vixen 115mm ED (FL 890mm), on an Altz mount and 32mm, 15mm, 13mm, 11mm, 7mm & 5mm EPs. By local standards, the seeing last night was very good.


The Main Stars:

Alpha Lupi (Lup): A nearby (460LY) supernova candidate.
Alpha appeared as a blue-white star, or a really strong white star.

Beta Lup (Kekouan): Only 25 million years old, yet near the end of its hydrogen phase.
Beta appeared white.

Gamma Lup. Binary (190 year period) that was widest in 2014. The only measurement I have says 0.8 arc seconds in 1996.
Gamma appeared white. I thought it was odd shaped and would have suspected it as being double. However, I could not split it with 180x

Delta Only 15 million years old, but has already entered the subgiant stage.
Delta appeared white.

Epsilon Lup. Double star; the companion is wide and faint.
Epsilon delighted me. The companion was bright enough to be easily seen and poised beside, but well distant from the primary using 60x. It was not a rich field, so this pair were an attention grabber. Epsilon appeared white.


Other Objects:

NGC 5882: Planetary nebula.
This was a classic planetary: it appeared blue and disappeared as soon I looked directly at it. I identified it using only 28x. The planetary took magnification well, as I was able to effectively use 180x to improve the view. However, the view I enjoyed best was with a 11mm Nagler (80x)

NGC 5824: Globular. Distance 104,000 LY.
This globular looked like a 'hairy' star at 28x. Using higher magnifications, its highly condensed central area showed well, without resolving into individual stars. I like it best when using a 13mm Nagler (68x).

NGC: 5927: Globular. Distance 25,000 LY. I am so familiar with this globular, as I use it as a marker when checking the nearby site of what was a nova in 1893. I am hoping to catch a recurrence of the nova...
A very loose globular. NGC5927 is like a cloud floating in space; it had an M27 appearance about it. Both objects can be imagined as floating in the foreground against the backdrop of the Milky Way. It was best with an 11mm Nagler (80x).

NGC: 5986: Globular. Distance 34,000LY.
Another loose globular that also had an optical illusion. There was a foreground star on the edge to the cluster and because of this seperate star, I initially thought that I was able to resolve the cluster with low power. However, using a 5mm Delite, I did begin to resolve this cluster. Personally, I like viewing it best with a 15mm Delite (60x).

NGC:5822. Open cluster. Distance 2,500 LY.
This is a large, loose cluster, with many reasonably bright members, which could be individually well seen. The scale (size) of the cluster is somewhat unusual. It was best with the 32mm EP (28x). It is set against the Milky Way, which makes the edges of NGC 5822 a little hard to determine.
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Old 11-06-2018, 10:23 AM
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Tinderboxsky (Steve)
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Excellent report Bob. Thank you for sharing.
I have spent time in Lupus in the past. I am inspired to re-visit.
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Old 14-06-2018, 10:32 PM
gaseous (Patrick)
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Thanks Bob, you're certainly getting your share of observing nights up there. Looking forward to adding these to my ever- expanding list of tropo-recommendations.
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Old 19-06-2018, 08:08 PM
Tropo-Bob (Bob)
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Quote:
Originally Posted by gaseous View Post
Thanks Bob, you're certainly getting your share of observing nights up there. Looking forward to adding these to my ever- expanding list of tropo-recommendations.
Thanks Patrick, I slowed down a bit because of the weather, but it looks good tonight.
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Old 25-06-2018, 09:18 PM
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ngcles
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Hi Bob & All,

I think the show-piece multiple star is Mu Lupi (HJ4753).

HJ 4753
RA: 15h 18m 32.0s Dec: -47 52' 30"
Components:
Mags: 4.3 / 4.4
Spect: B8V
# Obs: 46
Obs Dates: 1836 / 1996
Sep: 2.1 / 1.1
p.a.: 174 / 129

Here are my notes on a night of pretty good seeing way back on 19th April 1998 using 25cm at x276:

"Mags 5.1, 5.2 and 7.3 Sep 1.3" and 23". PA 136. This is a wonderful show-piece ***. Spanking !!. AB are very close est 0.8 -0.9", almost = mags in PA 135, they point straight at C which is about 20"distant, 2 mags fainter in PA 140. Gorgeous. All white.

Best,

L.
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Old 26-06-2018, 09:07 AM
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The Mekon (John Briggs)
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[
Quote:
QUOTE]I think the show-piece multiple star is Mu Lupi (HJ4753
Could not agree more Les. Bob's initial list is a bit bland in the doubles department.

I always start out with Pi Lupi, then if this shows up well swing around to Mu to really test things out.
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Old 26-06-2018, 09:08 AM
Tropo-Bob (Bob)
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Quote:
Originally Posted by ngcles View Post
Hi Bob & All,

I think the show-piece multiple star is Mu Lupi (HJ4753).

HJ 4753
RA: 15h 18m 32.0s Dec: -47 52' 30"
Components:
Mags: 4.3 / 4.4
Spect: B8V
# Obs: 46
Obs Dates: 1836 / 1996
Sep: 2.1 / 1.1
p.a.: 174 / 129

Here are my notes on a night of pretty good seeing way back on 19th April 1998 using 25cm at x276:

"Mags 5.1, 5.2 and 7.3 Sep 1.3" and 23". PA 136. This is a wonderful show-piece ***. Spanking !!. AB are very close est 0.8 -0.9", almost = mags in PA 135, they point straight at C which is about 20"distant, 2 mags fainter in PA 140. Gorgeous. All white.

Best,

L.
Thanks for that, I will have a look, although the weather predictions suggest clouds (well rain anyway) here for about another week.

I must admit, I went past a number of attractive doubles in Lupus so as to compare the three globulars. I was really happy to view a constellation with some many DSOs outside of the Messier and Caldwell catalogs that were still withing easy reach of my equipment.

All observations of any objects within the Constellations of The Grand Tour are very welcome.
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