Today's Eclipse: A Short Photo Diary

Just to add a little to my log of today's eclipse, a short photo diary of the session:

The session didn't start out too well, the Solarscope went flying in the wind so I had to come up with a method of making it heavier. I knew all those old power supplies would come in handy one day:

With the flying 'scope problem pretty much solved, the main event got under way:




However, the wind picked up, so more weight was needed. This is why you should never throw away that old laptop battery:


Soon, it got cloudy. Time to photograph my amazing solar observatory then:


Of course, because we were getting close to mid-eclipse, it wasn't a case of the whole sky being cloudy. Oh no. Towards the Sun it looked like this:


Whereas behind me:


However, around mid-eclipse, things did clear up:


So it wasn't a total loss. :-)

Any Canon EOS 400D/Digital Rebel XTi Owners Out There?

Anyone out there own a Canon EOS 400D (AKA Digital Rebel XTi, AKA EOS Kiss Digital X) and have access to any of the following cities: Abu Dhabi, Athens, Baghdad, Beijing, Berlin, Buenos Aires, Cairo, Copenhagen, London, Moscow, New Delhi, New York, Paris, Rome, Singapore, Sydney, Tokyo. Washington D.C., Wellington (NZ)?

If so, this thread on the SPA BB might be of interest to you.

Another Lubitel Star Trail

Further to my last attempt at some star trails with my Lomo Lubitel 166B I've now received a scan of the developed film of one I did I did during a session on 2008-02-09.

This time I was using Ilford HP5+ 400. Conditions were less than ideal, the sky was rather hazy for the whole observing session and everything got rather damp pretty quickly (hence the reason there's only one trail for the whole session). However, despite all of this, it's turned out better than I thought it would.

Thanks once again go to Tim Haynes for processing and scanning the film.

Shooting the Moon

Just recently I purchased a second lens (a Tamron AF 55-200mm f4.5-5.6 Di II LD) for my Canon EOS 400D. It wasn't until yesterday that I managed to give it a proper test.

Just before bedtime I noticed it was clear and that the Moon was pretty high so I thought it would be interesting to see how large it appears when captured with the new lens attached (previous efforts amply demonstrated that — no surprises here — the Moon doesn't appear very large at 55mm). So I wandered outside, set the lens to 200m and ran off some shots hand-held.

The result isn't actually that bad. If I'm in a position to observe the lunar eclipse next month (during the week, during the early hours of the morning, typical!) it might be worth trying to get a few shots.

Of course, now, I'm wishing for a 300mm lens. ;-)

Comet Holmes Still Naked Eye Object?

Last Saturday I managed to get out for my first "proper" observing session in a while. I had a pretty good night and managed to get views of Mars, M42, Saturn and M81 and M81.

But that wasn't the best part. The best part was the bit when I spotted something odd near Algol:

While stood looking at the Double Cluster with the naked eye I spotted something close by, near Algol, that appeared to be about the same size and of a similar brightness to it. Initially I was confused about what it was. I quickly grabbed my monocular and had a look and could see that it was a faint but noticeable misty patch. Given that I wasn't aware of any object in that location, and given that I couldn't find any such thing on my charts (not that I expected to — I'd have known about such an object if it were a "fixed" item in the sky), I suspected that it was comet Holmes.

Further visual checks at the time and checks with online charts for Holmes suggest that I really was seeing the comet.

This genuinely surprised me. It's been a while since I last observed it and I'd assumed that it wouldn't be visible to the naked eye any more, that it might even have faded beyond a point where I'd be able to observe it with any of my equipment.

Anyone else out there still seeing it this way?

Also, totally aside from the above, I also decided to try something a little different (for me) in terms of astrophotography (not that I do much astrophotography). I took along my Lomo Lubitel 166B, loaded with Ilford FP+ 125, and during the observing session had it pointing at various parts of the sky for around ½ hour at a time. I've no idea what, if anything, I'm going to get out of it, but I needed to use up some frames on the film and the chance to do some astrophotography with a TLR, on black and white medium-format form, was too good to pass up.

Heck, if it turns out reasonably well I might give it a go with colour next time. Might even mount the 166B on the back of the 130M and use its drive to go for some non-trailed shots.

Space Signpost

Via this thread on the SPA's BB:

Hi, I’m writing from a small market research firm in Bath. We’ve been commissioned by the Open University to conduct market research into the commercial potential for an educational astronomy-related product that’s under development.

The product is called ‘Space Signpost’, and it’s a desktop gadget that will physically turn and point to the exact location of any astronomical body. Here’s a link to the Space Signpost web site, which shows some of the educational prototypes to date; I can also post a sketch of some of the thinking for potential design of the commercial product, which is a much smaller desktop version, with specific features as yet undetermined.

There's not that much information about it at the moment, although it's an interesting idea if the large-scale versions are anything to go by. I can imagine that it might be a useful prop of you're the sort of person who gives tours of the night sky to groups of people, but I'm struggling to think of a personal use (other than the gadget-value anyway).

My response to the questions can be found here.

More mobile phone astrophotography

Anyone who has read this blog for a while now will know that, on occasion, I've had a silly moment and tried to use the camera in a mobile phone to grab images of what I was observing (things like the Sun, Mars, the Moon, the partially eclipsed Moon, Saturn and even the Moon and Saturn together).

I've never had that much success, the images have never been that good (neither has the equipment) and, in each case, it's always been more about being a bit silly than about trying to get a useful image.

However, Ian Musgrave has, to my eyes, managed to capture an astonishingly good image of the Moon with his mobile phone.

Even more astonishing is his image of Jupiter. While the planet itself is devoid of any detail, he's managed to pick up three of Jupiter's moons.

On a mobile phone!

Accidental stereogram

Not exactly astronomy, but it does relate to one of my telescopes...

Over the weekend I was taking some new photographs of my two 'scopes to replace those on the tools page of my site (the ones that had been there had been taken with mobile phones and were of terrible quality). While reviewing the shots yesterday I noticed that two of them appeared to be taken from almost exactly the same spot and at exactly the same height.

In other words, I appeared to have accidentally created a stereogram. I then placed them side by side in one image and got this result:

If you're the sort of person who can go cross-eyed without any trouble you should be able to see the 3D effect. Click on the image for a bigger version.

Next week's lunar eclipse

Like Will, I'm already thinking about observing next week's lunar eclipse.

All being well, weather permitting (sadly the 6 to 15 day forecast from the Met Office doesn't give much of a clue about what to expect), I'm hoping to join a fellow observer a Woodland Waters (somewhere we've used once so far and were very happy with). The horizon there is pretty good and should give an unobstructed view of the whole event.

Even though I now own a dSLR it's unlikely that I'll be taking any photographs of the event due to the fact that I don't have the kinds of equipment that make it worth it, although I might try something — during the last lunar eclipse the fact that I only had a compact digital camera didn't stop me from trying to make some sort of photographic record.

Visually I'll probably be using a 10x50 binocular and the Antares 905. Pretty much all of my observing will be visual and, of course, I'll be keeping a written record of the event.

Fingers crossed that the weather plays ball again...

Dobsonian vs Equatorial

Via this post on the SPA BB:

Hmm, okay...

A little bit of astrophotography

On Saturday evening I finally caved in and, while I had a space moment, I decided to give my Canon EOS 400D a quick go under the stars.

Conditions weren't ideal, mist was starting to form, but I dragged the tripod and camera out anyway. I played around with different exposure settings and generally got to know some of the features of the camera that I might want to use if/when I do some astrophotography (I'm more interested in using the camera for "straight" photography than I am astrophotography — I think I'm still more into observing than I am photographing).

Probably the best of the bunch was this one of Orion. It's trailed a little (no surprise) and I think the focus is a little off too, but M42 is clearly visible and, I think, I even managed to catch a faint meteor (look in the top half of Orion's "body").

Not much happening, and a couple of new toys

And still the lousy weather continues.

Since Christmas I've had no good clear nights when I've been in a position to observe. Just as bad, I've only seen the Sun, at a time I could observe it, twice so far this month (as of the time of writing there's one log missing, I've yet to type it up on the machine). This is starting to feel somewhat like last year.

Just to frustrate things, today I took delivery of a couple of new observing toys: a Baader contrast booster filter and a Baader Neodymium filter. The former should improve the view via the Antares 905 while the latter should improve the view in the Explorer 130M (hopefully improving the view of some DSOs). I'm looking forward to giving them a go so a nice clear night would be welcome some time soon (current forecasts suggest this won't happen for at least the next couple of days).

Still, at least when the weather isn't really awful, I've got my other new toy to keep me occupied.

Mobile phones, the next big thing in astronomy?

Okay, I'm pushing it a bit with the title of this post, but I am fascinated by the results that people can get with the little cameras you get in mobile phones (or "cell phone" for those in strange parts of the world) these days.

I've used mine in the past to (try and) record sunspots, the Sun itself (although that one's really rubbish), Mars (yes, I know, I'm pushing it a bit there), the Moon, the Moon with Jupiter, a solar eclipse and various forms of atmospheric phenomena. The results have never been that great but I never really expected them to be that great.

That said, if LPOD is anything to go by, some of the better phones seem to give amazing results.

But, for me, none of the above quite match the image in this post on the SPA BB. Sure it's blurred. Sure it's smudged. Sure there's no real detail. But you can instantly tell which planet it is. An identifiable planet, on a mobile phone! How neat is that?

Being silly with the 905 and a mobile phone

Had another enjoyable observing session tonight until cloud stopped play. The Moon was pretty much washing out the sky so I failed to observe the comet but I did spend quite a lot of time observing the Moon (the log will probably go online early next week). At one point earlier on in the session and while the sky was still quite light, I grabbed my mobile phone and took a couple of images through the eyepiece. The first, with (if I recall correctly) the 15mm eyepiece in place, was of the whole moon:

Given that it was hand-held at the eyepiece and given that the camera in the phone (a Nokia 6280) isn't that good the image turned out better than expected (and better than the handful that I deleted at the time).

Also, just for fun, I dropped the 6mm eyepiece into the 'scope and tried a closeup on the region around Ptolemaeus:


This one's not so good but the craters are recognisable when compared to a map.

I'm going to have to crack at some point in the near future and start to play with a webcam or something.