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Jun.19/20 observing diary

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Author Topic: Jun.19/20 observing diary  (Read 222 times)
Roman White
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« on: June 20, 2009, 01:25:59 pm »

This was an all-night session, and a very busy night indeed... maybe there is something worth posting.

Starting at 21:30, just after I've set up outside, the NLC arrived in north. See report in NLC topic.

Next the Stratocumulus rolled in from west, hiding the NLC display from me and soon covering 50% of the sky. So there was a short break near 22:30-23:00 EEST. But shortly the sky cleared and I continued.

As the twilight faded out (closer to 23:30) I began just to wonder with the sky because I was nearly shocked with its quality. The transparency was great, some noticeable light pollution only in E, S & SW. The zenith was brilliant, I don't know exactly, but the NELM was somewhere between 5.5-6.0m which is great for my location.
I could see the Milky Way from Cassiopeia to Aquila and it was enough distinct, not like usually very faint (or invisible), and there was some structure visible within Cygnus. That night was the case when I can estimate my sky as 5 by Bortle, and not 5.5 either not 6.
I dreamed to test my new 20x90 bino. on a good clear night - and here is the moment! I was just gazing at the stars for an hour or so!  Grin - hundreds of stars in the FOV is impessive indeed.

Here is an effort to make the most of a single frame...
23:53 EEST, 15sec @ ISO5000 f/2.8.
As result, the ML is 8.0+

The constellations are situated approx. like this:
DracoHercules
CygnusLyra


It was already 00:00 and I thought to make a short meteor observation (mainly for JLY) for a hour or a bit more but next I realised that I have no time to do that!  Shocked That is the only bad thing which can happen on a summer night.

Next I set up to compare the view both from 76mm Newton and 90mm bino at some DSO's.

I have printed a few maps before... but I had a look only at M101, no time left for other objects... Undecided
(00:55 EEST)
M101 (in UMa) looked like a large elliptic (~16'x10') glow in binoculars. It was relatively faint with no details but visible good. ML was 11.6...12.0m
In telescope the ML was closely the same (~11.5m), but the galaxy was extremely hard to see, I shouldn't notice it if I didn't know the exact location.
I will post the sketches here a bit later.

At 01:30 I have quickly spotted a comet C/2006 W3 (Christensen) in binoculars - for the first time. This is my 6th comet and 2nd one this year. I will post a report in the following topic.

A rare conjunction is going on now in the southern sky. Jupiter (-2.5m) & Neptune (+7.9m) were at their closest on May.27, next time on Jul.10.
Today they were 47' apart - within one telescopic FOV (@35x). I observed it at 02:25 EEST.
They looked brilliant in binos, actually there were 6 planets visible in the same FOV  Cheesy (counting Jupiter's sats)

I observed a lunar occultation of TYC 1231-903-1 (7.4m) which occured at 02:55:32.6 EEST (+/- 0.3sec)

And another photogenic conjunction this morning...
Mars (+1.1m) and Venus (-4.2m) in 2.0o apart (visible in one binoculars FOV), and the Moon (phase 0.11-) in 8o apart.
03:13


NLC also arrived at dawn, here is a shot with Moon, Venus, Mars & NLC together
03:07
« Last Edit: June 20, 2009, 02:32:26 pm by Roman White » Report Spam   Logged

SkyWatcher 130/900mm EQ3, Bresser 76/700mm, 20x90 bino. and other, Olympus SP-550UZ
Eclipse & comet chaser, occultation & meteor observer
Poltava Astronomy Portal

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brianb
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« Reply #1 on: June 20, 2009, 05:22:43 pm »

Great report!

Yes, faint galaxies are easier to see with a lower power .....
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John9929
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« Reply #2 on: June 20, 2009, 05:37:14 pm »

Great report Roman, love the last two images of the conjunctions!
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Roman White
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« Reply #3 on: June 21, 2009, 12:31:15 pm »

Thanks Brian and John  Smiley

faint galaxies are easier to see with a lower power .....
It is indeed a great thing for searching 'faint fuzzies'. My friend told me yesterday that he can't find comet C/2006 W3 with his 114/900 Newton...
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martinastro
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« Reply #4 on: June 21, 2009, 04:20:31 pm »

I really enjoyed reading your report Roman, what a fantastic night you had and your description and images nicely sum up the lure of astronomical observing which we all have. Love the Moon and conjunction images including the image of your scope and binos. Congrats on hunting down the comet - nicely done!. Top marks  Smiley
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Roman White
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« Reply #5 on: June 21, 2009, 09:25:29 pm »

Thanks Martin, I will try to see comet(s) again tonight  Smiley

Hmm... there is C/2008 Q3 (Garradd) appearing low in the evening sky (Hya - Crv - Vir), being currently at 7-8 mag. Today I looked towards SW but there was very few time and impossible to see the comet, but maybe there will be a chance to see it in some time later.  Roll Eyes
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Eclipse & comet chaser, occultation & meteor observer
Poltava Astronomy Portal
Roman White
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« Reply #6 on: June 25, 2009, 01:16:54 am »

A rare conjunction is going on now in the southern sky. Jupiter (-2.5m) & Neptune (+7.9m) (...)
Today they were 47' apart - within one telescopic FOV (@35x). I observed it at 02:25 EEST.
Here is an image of that conjunction...

2009-06-22 02:27-02:35 (GMT+3)
11x8sec @ ISO 5000 f/4.0, stacked in DSS, post-processed

(Neptune is the closest star to the upper right)
« Last Edit: June 25, 2009, 01:19:43 am by Roman White » Report Spam   Logged

SkyWatcher 130/900mm EQ3, Bresser 76/700mm, 20x90 bino. and other, Olympus SP-550UZ
Eclipse & comet chaser, occultation & meteor observer
Poltava Astronomy Portal


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