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Search: Posts Made By: Rob_K
Forum: Celestial and Astronomical Events 28-01-2015, 11:12 AM
Replies: 58
Views: 2,464
Posted By Rob_K
Nice shots guys, bad luck Joe & Steve. :thumbsup:...

Nice shots guys, bad luck Joe & Steve. :thumbsup: Finally got around to processing the 7-sec subs from 26 Jan. Here's a few versions including one of all the subs, 7 & 10 sec. The Goldstone radar...
Forum: Celestial and Astronomical Events 26-01-2015, 11:43 PM
Replies: 58
Views: 2,464
Posted By Rob_K
Here's a couple from tonight, two different...

Here's a couple from tonight, two different stacks of the same subs. These were 10-sec exposures which was a bit too long shooting with a 200mm lens as the asteroid trailed (not so visible in these...
Forum: Celestial and Astronomical Events 26-01-2015, 05:37 PM
Replies: 58
Views: 2,464
Posted By Rob_K
Here's a guide - with the eyepiece view, the...

Here's a guide - with the eyepiece view, the asteroid will be similar in brightness to the faintest stars shown. You've probably got an inverted view but I've included the corrected view in case you...
Forum: Celestial and Astronomical Events 26-01-2015, 03:53 PM
Replies: 58
Views: 2,464
Posted By Rob_K
Not an easy target. That said, if you don't push...

Not an easy target. That said, if you don't push the limits you'll never learn anything - we all have failures and disappointments but the rewards of an occasional success can outweigh all that!...
Forum: Celestial and Astronomical Events 26-01-2015, 02:01 PM
Replies: 58
Views: 2,464
Posted By Rob_K
Here's my test from last night using topocentric...

Here's my test from last night using topocentric JPL ephemeris. Tried 10, 15 & 30 sec subs. 30 were too long, giving streaks. 10 sec had very weak signal. Might try 10 sec tonight though, given...
Forum: General Chat 24-01-2015, 09:37 AM
Replies: 26
Views: 637
Posted By Rob_K
Ever since we stopped wiping surfaces with raw...

Ever since we stopped wiping surfaces with raw chicken meat (thank you TV advertising, how could we have been so stupid?), the ant problem doesn't seem nearly as bad. :shrug:

Cheers -
Forum: General Chat 14-01-2015, 01:44 PM
Replies: 8
Views: 290
Posted By Rob_K
Suppose it depends how deep you want to go Marc. ...

Suppose it depends how deep you want to go Marc. There was a deep widefield taken a couple of days ago in Mongolia that showed the tail faintly out to just over 12-deg length. Look forward to...
Forum: General Chat 09-01-2015, 03:07 PM
Replies: 36
Views: 1,092
Posted By Rob_K
That explains my extraordinary fitness. Now,...

That explains my extraordinary fitness. Now, where was I...
Forum: Radio Astronomy and Spectroscopy 06-01-2015, 11:05 PM
Replies: 24
Views: 1,052
Posted By Rob_K
Wow, now that's different! :thumbsup: Great job...

Wow, now that's different! :thumbsup: Great job Terry, love the colour! :) And fantastic to see some real detail on the comet emissions.

Cheers -
Forum: General Chat 05-01-2015, 11:11 AM
Replies: 5
Views: 189
Posted By Rob_K
Fabulous Andrew, goodonya! :thumbsup: It's a...

Fabulous Andrew, goodonya! :thumbsup: It's a stunning photo that just keeps giving! :)

Cheers -
Forum: General Chat 31-12-2014, 12:58 PM
Replies: 36
Views: 1,092
Posted By Rob_K
You guys are far too cynical. And I'll prove it...

You guys are far too cynical. And I'll prove it as soon as I've completed the rescue of that impoverished 20-yo Russian girl. Very sad, she's so poor she can only afford skimpy clothes. Just...
Forum: General Chat 29-12-2014, 10:00 PM
Replies: 33
Views: 974
Posted By Rob_K
:shrug: It's not necessarily what's there Dunk,...

:shrug: It's not necessarily what's there Dunk, it's where it is. They see Scorpius & Sagittarius too! But they don't see the Scorpion & Milky Way Central passing over the zenith, Sirius & Canopus...
Forum: General Chat 29-12-2014, 04:39 PM
Replies: 33
Views: 974
Posted By Rob_K
I went to UK/Ireland in September, first time...

I went to UK/Ireland in September, first time ever in the NHem. First there was a waxing Moon in the sky (which moved backwards - what's that all about? :P ) but even then there was something...
Forum: General Chat 28-12-2014, 07:16 PM
Replies: 31
Views: 929
Posted By Rob_K
Set of hair clippers. Most strange, considering...

Set of hair clippers. Most strange, considering I'm bald. :shrug: Must be for the back, ears, eyebrows, nose and all the other places your hair migrates to as you get older... :sadeyes:

Only...
Forum: Observation Reports 28-12-2014, 02:37 PM
Replies: 9
Views: 258
Posted By Rob_K
Excellent Malcolm! I've only seen it once,...

Excellent Malcolm! I've only seen it once, through a 22" at SV. Wasn't a great view but sufficient to vaguely make out an approximate shape. When you really analyse it, it's a lot of fuss about...
Forum: Radio Astronomy and Spectroscopy 28-12-2014, 11:56 AM
Replies: 24
Views: 1,052
Posted By Rob_K
Good going Al! Latest is a bit over-exposed,...

Good going Al! Latest is a bit over-exposed, hard to graph successfully at least for me. Got a bit of a result on your spectrum 17 Dec (?), attached. I took one the other night, getting easier as...
Forum: Beginners Talk 23-12-2014, 01:44 PM
Replies: 62
Views: 2,046
Posted By Rob_K
Cheers Malcolm! I'll admit that if I wanted a...

Cheers Malcolm! I'll admit that if I wanted a knock-out view of a comet however bright (but not too big!) I'd choose a 20" SDM over a 4.5" Tasco any day! However that's a pretty mono-dimensional...
Forum: Beginners Talk 23-12-2014, 10:19 AM
Replies: 62
Views: 2,046
Posted By Rob_K
Doesn't quite work like that Malcolm. This comet...

Doesn't quite work like that Malcolm. This comet has been well-observed visually by comet observers across the world and coma diameters up to 20' are being reported in binoculars (the general rule...
Forum: Observation Reports 21-12-2014, 10:41 PM
Replies: 2
Views: 148
Posted By Rob_K
Great report Sab! Nice descriptions, glad you're...

Great report Sab! Nice descriptions, glad you're getting some sky time. Only serious omission was comet C/2014 Q2 (Lovejoy) - should knock your eyes out with the 12" SDM. ;) :)

Cheers -
Forum: Radio Astronomy and Spectroscopy 17-12-2014, 08:48 AM
Replies: 24
Views: 1,052
Posted By Rob_K
Thanks for coming in Robin & Ken, I'm a bit out...

Thanks for coming in Robin & Ken, I'm a bit out of my depth!



Because a comet is an extended object, without a slit the spectrum becomes self-contaminating. For the broader cometary spectral...
Forum: Radio Astronomy and Spectroscopy 15-12-2014, 09:38 AM
Replies: 24
Views: 1,052
Posted By Rob_K
Star Analyser has released the SA200, double the...

Star Analyser has released the SA200, double the lines per inch. But Robin or Ken would be much better placed to answer your question, hope they chime in!

Cheers -
Forum: Radio Astronomy and Spectroscopy 15-12-2014, 12:29 AM
Replies: 24
Views: 1,052
Posted By Rob_K
Good stuff Al! First, you need to stack on the...

Good stuff Al! First, you need to stack on the comet head, not the star. Your spectrum as posted is smeared, and at an angle. The AVI has gif dithering and is not really that useful. I'd have a...
Forum: Radio Astronomy and Spectroscopy 14-12-2014, 12:01 PM
Replies: 24
Views: 1,052
Posted By Rob_K
Cheers Al - your wish is my command! It's...

Cheers Al - your wish is my command! It's mounted in an old lens cap. I cut a small piece of thread off a bodgy eyepiece and glued that in a hole cut in the cap - that way I can use any filter with...
Forum: Radio Astronomy and Spectroscopy 13-12-2014, 04:49 PM
Replies: 24
Views: 1,052
Posted By Rob_K
Comet C/2014 Q2 (Lovejoy)

This comet is currently (and easily!) the brightest comet in our skies at the moment. It is nearing naked-eye brightness and is really well placed for southern observers. I've obtained a few rough...
Forum: Radio Astronomy and Spectroscopy 03-12-2014, 10:17 AM
Replies: 7
Views: 410
Posted By Rob_K
This is the best I could do last night (13:37, 02...

This is the best I could do last night (13:37, 02 Dec 2014 UT) between clouds with SA100 and 200mm lens on Canon 650D. Calibration is approximate.

Cheers -
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