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Re: A reason to get up early

Posted: 22:01 Sun 14 Dec 2014
by djewesbury
I noticed that the word 'Islay' was contained in that post. I think you should drink only Islay on the day of the eclipse.

Re: A reason to get up early

Posted: 00:01 Tue 16 Dec 2014
by LGTrotter
Saw a couple more Germoloids this evening. Or have they all cleared up now Derek?

Re: A reason to get up early

Posted: 01:15 Tue 16 Dec 2014
by DRT
LGTrotter wrote:Saw a couple more Germoloids this evening. Or have they all cleared up now Derek?
No, I think they are with us for a few more days. Early Sunday morning was the peak, but the band of jetsum we are flying through is very wide.

Re: A reason to get up early

Posted: 01:27 Tue 16 Dec 2014
by LGTrotter
It's just that these were in the east rather than those in the northwest a few days back.

So the Germoloids gag isn't even worth a nod, I'm working with nothing here...

Re: A reason to get up early

Posted: 01:43 Tue 16 Dec 2014
by DRT
LGTrotter wrote:It's just that these were in the east rather than those in the northwest a few days back.
Close your eyes and think about multiple things spinning around other spinning things whilst orbiting other things and then explain to me why something that is coming from outside all the spinning and orbiting things would appear in the same place night after night.
LGTrotter wrote:So the Germoloids gag isn't even worth a nod, I'm working with nothing here...
A mixture of anti-septic flotsam and hemorrhoids in a single word, what more needed to be said?

Re: A reason to get up early

Posted: 01:45 Tue 16 Dec 2014
by LGTrotter
DRT wrote:
LGTrotter wrote:It's just that these were in the east rather than those in the northwest a few days back.
Close your eyes and think about multiple things spinning around other spinning things whilst orbiting other things and then explain to me why something that is coming from outside all the spinning and orbiting things would appear in the same place night after night.
Because it often does?

And I thought you would be pleased that I noticed the direction. Shan't tell you the degrees of arc in the sky now.

Re: A reason to get up early

Posted: 01:52 Tue 16 Dec 2014
by DRT
I am indeed pleased that you can remember which way you were facing.

To give you an idea of how random the hemorrhoids can be, this is a graphic produced by a guy named Allen from one of the cameras he had pointed at the sky on Sunday morning...
post-25425-0-58521400-1418562882.jpg
post-25425-0-58521400-1418562882.jpg (222.37 KiB) Viewed 7200 times
Each yellow line and red dot is a meteorite burning up in the atmosphere. About 80% of them (in all directions) are Geminoids.

Re: A reason to get up early

Posted: 01:59 Tue 16 Dec 2014
by LGTrotter
Ah, I see. I did not mean to be idiotic in my last remark; lots of stuff does seem to turn up in the same place at fixed intervals. But not these. Wrong again...

Re: A reason to get up early

Posted: 02:01 Tue 16 Dec 2014
by LGTrotter
What does the length of the green line represent?

The angle to the horizon I suppose.

Re: A reason to get up early

Posted: 09:39 Tue 16 Dec 2014
by DRT
I think it is the distance from the observation site to each meteorite.

Re: A reason to get up early

Posted: 16:42 Tue 16 Dec 2014
by LGTrotter
I've just realised that there is a pattern. None to the north east, or is that likely to be cloud preventing the observations?

Re: A reason to get up early

Posted: 17:18 Tue 16 Dec 2014
by DRT
He had multiple cameras pointing in various directions. This is the output from one camera.

Re: A reason to get up early

Posted: 18:39 Sat 03 Jan 2015
by DRT
A very clear 98% full Moon this evening…
2015-01-03 18.20.46.jpg
2015-01-03 18.20.46.jpg (97.66 KiB) Viewed 7172 times
Will be staying up late to see if I can get my first glimpse of Comet Lovejoy Q3.

Re: A reason to get up early

Posted: 22:52 Sat 03 Jan 2015
by DRT
Found it!

Just a faint fuzzy ball at the moment due to the glare from the Moon and the humid atmosphere but should be spectacular later this month when the moon goes down and it gets higher in the sky.

It is likely to be visible to the naked eye under a dark sky so anyone who fancies looking for it can use this very helpful tool to locate it. You need to change the location settings in the top right hand corner then used the drop-downs to select the current date and time and it will generate sky maps and co-ordinates to help you locate it.

Re: A reason to get up early

Posted: 23:37 Sat 03 Jan 2015
by LGTrotter
No sighting down here. Way too much light where I am.

Re: A reason to get up early

Posted: 00:01 Sun 04 Jan 2015
by AW77
LGTrotter wrote:Way too much light where I am.
Is this due to your halo? :)

Re: A reason to get up early

Posted: 00:02 Sun 04 Jan 2015
by DRT
Another thing to watch in the early hours is the Quadrantids meteor shower. It will happen between 1am and 3am with around 100 meteors per hour emanating from an area just to the left of the end of the handle of the big dipper. This is a quick shower with a definite peak in intensity at around 2am.

The Moon will be a problem but some of the brighter ones might still show up.

Re: A reason to get up early

Posted: 13:37 Sun 04 Jan 2015
by LGTrotter
LGTrotter wrote:No sighting down here. Way too much light where I am.
And then the fog rolled in. :roll:

Re: A reason to get up early

Posted: 14:53 Sun 04 Jan 2015
by DRT
You didn't miss much. I stood outside in the freezing cold for half an hour looking up at the area they were coming from and saw two dull and short streaks of light. It was washed out by the Moon.

Full Moon tonight - get your best wolf impressions ready.

Re: A reason to get up early

Posted: 13:22 Sun 18 Jan 2015
by PhilW
No chance for a photo, but on Friday evening I did manage to view the comet Lovejoy in the telescope (in fact it was just visible with binoculars); nice clear night here, and the comet was just down and to the right a bit from the Pleiades; not much more than a dot inside a slight green fuzz/blur, but was pleased to have found it. Any pics Derek?

Re: A reason to get up early

Posted: 13:50 Sun 18 Jan 2015
by DRT
PhilW wrote:Any pics Derek?
I only photograph by holding a digital camera up to the eyepiece so it only works on really bright objects like the Moon and planets. This would just come out completely black. The best photograph I have seen of it so far is this one...

Image

Credit to Mark (sharkmelley) @ StarGazersLounge.

Re: A reason to get up early

Posted: 14:08 Sun 18 Jan 2015
by djewesbury
Does one of your super whizzy scopes not hook up to your laptop? Is that not a way to capture images?

Re: A reason to get up early

Posted: 14:28 Sun 18 Jan 2015
by DRT
I have an astronomy webcam but have never been able to master it. I have no access to a Windows laptop and astro imaging stuff on iOS is very basic and not well known or supported. I will be getting a solar telescope for my 50th birthday and plan to spend some time with that and the webcam trying to master the technique. That will be so much easier than fumbling around in the dark on a freezing cold night.

To create images like the one above you need lots and lots of very expensive, specialist gear. I am determined not to go down that road for the sake of my bank balance!

Re: A reason to get up early

Posted: 18:01 Sat 24 Jan 2015
by DRT
Time for a Moon...
2015-01-24 17.44.38.jpg
2015-01-24 17.44.38.jpg (253.16 KiB) Viewed 7124 times

Re: A reason to get up early

Posted: 23:21 Sat 24 Jan 2015
by djewesbury
That's beautiful. Can you let us know which of your scopes you used?

Re: A reason to get up early

Posted: 23:50 Sat 24 Jan 2015
by jdaw1
Could you add an arrow pointing to Beagle 2?

Re: A reason to get up early

Posted: 23:55 Sat 24 Jan 2015
by AW77
Isn't Beagle 2 close to Terrier 3? :)

Re: A reason to get up early

Posted: 00:13 Sun 25 Jan 2015
by DRT
djewesbury wrote:That's beautiful. Can you let us know which of your scopes you used?
It was one of these:
SkyWatcher FlexTube 300P.jpg
SkyWatcher FlexTube 300P.jpg (12.43 KiB) Viewed 8304 times
With this eyepiece...
TeleVue-Nagler-T5-31mm.jpg
TeleVue-Nagler-T5-31mm.jpg (26.25 KiB) Viewed 8304 times
Otherwise collectively known as "a 12 inch Dob and a hand grenade".

Re: A reason to get up early

Posted: 00:14 Sun 25 Jan 2015
by djewesbury
Blimey. The hand grenade is a serious optic. Very nice.

Re: A reason to get up early

Posted: 00:19 Sun 25 Jan 2015
by DRT
djewesbury wrote:Blimey. The hand grenade is a serious optic. Very nice.
Certainly is. It's just over a kilogram of glass and aluminum.

A reason to get up early

Posted: 00:19 Sun 25 Jan 2015
by djewesbury
Or, 950g of glass and 60g of aluminium?

Re: A reason to get up early

Posted: 00:26 Sun 25 Jan 2015
by DRT
djewesbury wrote:Or, 950g of glass and 60g of aluminium?
Something like that.

Here it is with its friends...
DRT-optics.jpg
DRT-optics.jpg (51.49 KiB) Viewed 8295 times
That little lot translates to about two cases of Fonseca 1970 at full retail. Lucklily these things keep there value so one day they might actually turn into two cases of Fonseca 1970 88)

Re: A reason to get up early

Posted: 00:28 Sun 25 Jan 2015
by djewesbury
Oh god. It's like I'm back drooling over £5000 sets of Russian prime lenses for 16mm cameras. Stop now.

Re: A reason to get up early

Posted: 00:31 Sun 25 Jan 2015
by DRT
djewesbury wrote:Oh god. It's like I'm back drooling over £5000 sets of Russian prime lenses for 16mm cameras. Stop now.
If you speak to me nicely I'll show you my DiElectric Star Diagonals and my Herschel Wedge :wink:

Re: A reason to get up early

Posted: 00:35 Sun 25 Jan 2015
by AW77
DRT wrote:
djewesbury wrote:Oh god. It's like I'm back drooling over £5000 sets of Russian prime lenses for 16mm cameras. Stop now.
If you speak to me nicely I'll show you my DiElectric Star Diagonals and my Herschel Wedge :wink:
I this the star-gazers version of: "Would you like to come up and see my etchings?"?

Re: A reason to get up early

Posted: 00:37 Sun 25 Jan 2015
by djewesbury
DRT wrote:
djewesbury wrote:Oh god. It's like I'm back drooling over £5000 sets of Russian prime lenses for 16mm cameras. Stop now.
If you speak to me nicely I'll show you my DiElectric Star Diagonals and my Herschel Wedge :wink:
If you do, I'll delete your spelling crime!

Re: A reason to get up early

Posted: 00:54 Sun 25 Jan 2015
by DRT
djewesbury wrote:
DRT wrote:
djewesbury wrote:Oh god. It's like I'm back drooling over £5000 sets of Russian prime lenses for 16mm cameras. Stop now.
If you speak to me nicely I'll show you my DiElectric Star Diagonals and my Herschel Wedge :wink:
If you do, I'll delete your spelling crime!
I'd have to photograph them so not tonight. By way of compensation here is a photo of my new Lunt 50T H-alpha solar telescope that Jo has bought for my birthday in March. That's another case of F70 that I can't have :?
Lunt50Ha.jpg
Lunt50Ha.jpg (97.77 KiB) Viewed 8286 times
...but it allows you to view detail on the surface of the Sun and prominences/flares coming off the rim. I am told the views are stunning.

Re: A reason to get up early

Posted: 00:55 Sun 25 Jan 2015
by DRT
I'm off to look at Jupiter's GRS...

Re: A reason to get up early

Posted: 00:56 Sun 25 Jan 2015
by djewesbury
Wow. This is going to be the National Observatory when Derbyshire gets independence.

Re: A reason to get up early

Posted: 16:13 Tue 27 Jan 2015
by jdaw1
Calling the Derbyshire National Observatory:
The BBC, in an article entitled [url=http://www.bbc.co.uk/news/science-environment-31001936]Distant exoplanet hosts giant ring system[/url], wrote:Astronomers say they have discovered a planet with a gigantic ring system that is 200 times larger than that around Saturn.



The researchers are encouraging amateur astronomers to help monitor J1407, which would help detect the next eclipse of the rings. Observations of J1407 can be reported to the American Association of Variable Star Observers (AAVSO).
Links: American Association of Variable Star Observers; and the discoverers’ press release.

Re: A reason to get up early

Posted: 18:43 Tue 27 Jan 2015
by Glenn E.
Apparently that asteroid that just flew by has a 230-ft wide moon. Seems like a legit target for DRT!

Re: A reason to get up early

Posted: 23:54 Sat 07 Feb 2015
by jdaw1
There has been some discussion on a Wikipedia talk page talk page about strength of the 12:7 resonance of Haumea (dwarf planet) with Neptune. Please could the Derbyshire National Observatory, at next opportunity, confirm the visibility of Haumea.
Image
Keck Telescope, CalTech, 05:41, 5 January 2012 (UTC)

Re: A reason to get up early

Posted: 00:33 Sun 08 Feb 2015
by DRT
There is a small problem.

Neptune is currently in this position at dusk, and below the horizon by the time it is dark…
Sunset 8 Feb 2015.png
Sunset 8 Feb 2015.png (85.29 KiB) Viewed 8264 times
The Planets Today reveals why…
8 Feb 2015.png
8 Feb 2015.png (140.42 KiB) Viewed 8264 times
Remind me to look +/- 4 weeks of the end of August…
30 Aug 2015.png
30 Aug 2015.png (135.12 KiB) Viewed 8264 times

Re: A reason to get up early

Posted: 09:03 Sun 08 Feb 2015
by DRT
I have been searching around for observing reports of Haumea and have drawn a blank. I did find a couple of astro photography reports but they are meaningless in relation to the question asked.

Haumea is roughly Magnitude 17, which means it is very, very faint. The brightest stars you can see under clear skies are Mag 1. Mag 2 stars are approximately 2.5x dimmer than Mag 1; Mag 3 are 2.5x dimmer than Mag 2 and so on. Pluto (which I have never heard of as having been "observed" is Mag 15, so is more than six times brighter than Haumea.

Sir William Herschel catalogued thousands of celestial objects in the late 18th century using a forty foot long telescope with a primary mirror that was four feet in diameter. Browsing through his catalogue for ten minutes did not reveal any objects dimmer than Mag 15. Although a very few amateur astronomers have large telescopes, the lost common "Big Dob" in use today has a twelve inch mirror and is approximately five feet long. See image of SkyWatcher FlexTube 300P above.

I very much doubt that Haumea is visible to 99%+ of amateur astronomers, not only due to the limitations of their equipment but to the effect of light pollution that simply didn't exist when these very dim objects were first discovered using gigantic instruments.

Re: A reason to get up early

Posted: 09:44 Sun 08 Feb 2015
by jdaw1
Good diagrams showing apparent proximity of Neptune and Sun.

Turning to the Haumean question:
Wikipedia wrote:With a visual magnitude of 17.3, Haumea is the third-brightest object in the Kuiper belt after Pluto and Makemake, and easily observable with a large amateur telescope.
As it was first observed in December 2004, and its orbit takes 284.12 years, I guessed that it wouldn’t have moved far and so would still be visible in winter.

Re: A reason to get up early

Posted: 11:07 Sun 08 Feb 2015
by DRT
jdaw1 wrote:Good diagrams showing apparent proximity of Neptune and Sun.

Turning to the Haumean question:
Wikipedia wrote:With a visual magnitude of 17.3, Haumea is the third-brightest object in the Kuiper belt after Pluto and Makemake, and easily observable with a large amateur telescope.
As it was first observed in December 2004, and its orbit takes 284.12 years, I guessed that it wouldn’t have moved far and so would still be visible in winter.
This might be a controversial statement, but I don't think absolutely everything on wikipedia is 100% accurate :shock:

I misinterpreted your first post to mean that Haumea was currently close to Neptune in the sky. I now realise that the question at hand is to what degree the objects affect one another. I have no idea where Haumea currently is but will find out and take a look.

The fact that these objects were unknown until only a decade ago suggests to me they are not "easily observable with a large amateur telescope". But I will try.

Re: A reason to get up early

Posted: 11:55 Sun 08 Feb 2015
by LGTrotter
Also, I lost a pen on my last spacewalk if you could have a look for it Derek.

Re: A reason to get up early

Posted: 11:59 Sun 08 Feb 2015
by djewesbury
LGTrotter wrote:Also, I lost a pen on my last spacewalk if you could have a look for it Derek.
:lol: :lol: :lol:
This thread should be closed now that it has achieved perfection.

Re: A reason to get up early

Posted: 12:14 Sun 08 Feb 2015
by DRT
djewesbury wrote:
LGTrotter wrote:Also, I lost a pen on my last spacewalk if you could have a look for it Derek.
:lol: :lol: :lol:
This thread should be closed now that it has achieved perfection.
No. It's a five year mission, to boldly go where no drivel has gone before...

I have the coordinates of Haumea for midnight tonight.

Re: A reason to get up early

Posted: 12:19 Sun 08 Feb 2015
by jdaw1
DRT wrote:I have the coordinates of Haumea for midnight tonight.
I’m pleased about that being consistent with
jdaw1 wrote:As it was first observed in December 2004, and its orbit takes 284.12 years, I guessed that it wouldn’t have moved far and so would still be visible in winter.