Symbolic Forest

“NO PHOTOGRAPHY” said the sign at the door in big, bold letters. So this post doesn’t have any images in it; no photographs, at any rate.

It’s curious, the banality that major events can sometimes carry with them. The extent to which a world-changing event becomes a matter for paperwork. I walked through the chicane of barriers to the door of the leisure centre; was given hand sanitiser and had my ID and my temperature checked, before joining the end of the first queue.

Many, clearly, had gone before me. Almost three-quarters of the adult population of Wales have now had their first vaccination dose. For everyone who does it, though, it’s a significant step. Each queue, each desk that takes your name and details and gives you a different leaflet to read. I’m not sure quite why there had to be two separate desks to take the same details each time, with a new queue between each one.

My local vaccination centre is in the local leisure centre, its sports hall converted into a production line for vaccinating the masses. After the final check of who you are and where you live, you enter a long, fat holding chicane, fat to make sure each strip of the queue stays well apart. Plenty of time to appreciate the details of the production line arrangements. The hall split half and half between the stations for giving jabs, and the seating for patients to sit and wait afterwards. At the side of the room, desks for the Clinical Controller and the Admin Controller. Each of the numbered trestle tables had two nurses, two seats for patients, two computers and two big yellow sharps disposal bins. Whenever a nurse is free, they hold up their hand, and the nurse at the head of the queue directs the patient where to go, which route to follow to avoid stepping through someone else’s exhaled breath.

After you’ve been injected, after giving your name and details yet another time, you are moved over to the waiting area, to sit to ensure no serious side effects ensue in the first few minutes after the jab. Sitting in a sports hall, at a well-spaced chair, staring at a slowly-moving clock on the wall: naturally, it feels more like some sort of school exam than anything else. Possibly one of those dream-logic exams from years after you have left school, where there is no desk and no exam paper ever comes. Of course, in an exam, you still can’t sit and read your phone. I counted the minutes around the dial of the clock, turned my chair the regulation ninety degrees to flag it for disinfection, and walked out ready for the rest of the day.

Keyword noise: vaccinations.

A couple of weeks ago now, I mentioned that I’d been outside and pointed the camera up at the sky to see what happened. It’s about time, I thought yesterday, that I tried to actually see if I could make the photos that resulted useful in some way.

This is all down to a friend of mine, Anonymous Astrophotographer, who I won’t embarrass by naming, but who manages to go out regularly with a camera and a tripod and even without a telescope produce beautiful pictures of the Milky Way and various other astronomical phenomena. I asked them what their secret was. “Nothing really,” they claimed, but gave me a bit of advice on what sort of software to try a bit of image-stacking and so on.

I thought, you see, that given that The Child Who Likes Animals Space’s telescope doesn’t have an equatorial mount, it would be pointless to try to attach a camera to it. You can, after all, visibly see everything moving if you use the highest-magnification eyepiece we’ve got at present. Equally, surely it would be pointless just to point my SLR up into the sky? Apparently, not, Astrophotographer said. The trick is to take lots of shots with relatively short exposure and stack those together in software. The exposure should be short enough that things don’t get smeared out across the sky as the Earth spins—anything over 20 seconds is probably too long there—and the number of shots should in theory even out random noise in the sensor, stray birds, and so on.

As a first attempt, I thought, there’s no point trying to get sight of anything particularly special or impressive, so I pointed the camera to a random fairly dull patch of sky and see what happened. You can click to see a larger version.


This is an arbitrary area in the constellation of Draco. In the middle you have Aldhibah, or ζ Draconis, with Athebyne (η Draconis) over on the right and the triangle of Alakahan, Aldhiba and Dziban over on the left. The faintest stars you can see in this image are about mag. 7.5, maybe a little fainter, which is a bit fainter than you could see with the naked eye even in perfect conditions. This image has been adjusted slightly to lower the noise; in the original you could just about persuade yourself you could see mag. 8 objects, but they were barely distinguishable from noise. The Cat’s Eye Nebula (NGC 6543) and the Lost In Space Galaxy (NGC 6503) are both theoretically in the picture, in the lower left, but they’re not visible; the former can just about be spotted as a faint pale patch very different in shade to the noise around it on the original images, if you know exactly where to look.


Here’s the handle of The Plough, with the stars Mizar and Alcor together in the middle. This one really doesn’t look much at a small size, but if you click through you can see how well the camera captured the different colours and different shades of starlight. Again, the darkest things visible here are about mag. 7.5. The Pinwheel Galaxy is right in the middle of the lower centre, but at mag. 8 or so doesn’t come out of the noise at all.

What do I need to do to make things better? Well, for one thing, the seeing wasn’t actually very good on the night I tried this. As I said in the previous post I had to give up fairly quickly due to cloud. What I hadn’t realised, until I saw the photos, was that faint clouds, lit up by moonlight, were already rolling in well before it became obvious to the naked eye. Trying some photography again on a clearer night would definitely be a start. Secondly, my SLR is pretty old now, dating to the early 2000s. The sensor is, compared to a more modern one, fairly noisy at low light levels. I’m not going to rush out and buy a new camera tomorrow, but I do suspect that if I did, the attempts above would get quite a bit better.

Keyword noise: astronomy, photography, astrophotography, Draco, Ursa Major, Aldhibah, Athebyne, Mizar, Alcor.

Back in the mists of time (well, January), I posted about the mechanism I use to keep track of ideas I’ve had for posts to write about, so I make sure that if I’m in the middle of something else and think “that would be a good blog post topic,” it doesn’t just get forgotten and allowed to wither.

I realised, looking the other day down the list of “tickets” for post topics to write about, that practically all of the things I actively want to write about are ideas I’ve come up with in the past couple of months, since moving house. There are plenty of things I wrote down before moving, but none of them really spark anything inside me at the moment, as something I want to put down and get out there. Some of them I do at least understand; others are a little bit more mystifying. When I put down a few words such as “Post about the fast-flowing water in Stockholm,” what did I really mean and what exactly was I going to say?

Moving house, it seems, has subconsciously been a much bigger upheaval than I realised it would be. A much bigger and cleaner break from the past than I was expecting. I can understand no longer having the energy to write posts about Bristolian local history; but all of those had been cleaned off the backlog already in any case. Somewhere in my head, all of the ideas I came up with before moving are now in a dusty mental box marked “do not need to unpack”.

Nevertheless, although I had a bit of a lull, there are now plenty of ideas to come. At some point, too, I’ll get back on to the old ones, maybe even finish writing that modern version of The Box Of Delights that I started to make a rough stab at. There is a lot more to say, even if as yet I don’t know exactly what all of it will be.

Keyword noise: blogging, writing, ideas.

We’re a couple of weeks on from the previous post, so it’s time for another update on my current cross-stitch project. This weekend just past, I finished off the last of the cross-stitch itself on this project. Now, I just have the back stitch to do.

The back stitch that makes up the border (and the lettering at the bottom) will be nice and straightforwards; the back stitch that provides the veining on the wings is going to be rather harder, as it’s in a dark brown thread that doesn’t stand out very well at all against the fabric. By the time of the next update, I suspect I’ll be getting somewhat frustrated.

The previous parts in this series were *part four*, *part five* and *part six*. The final part is *part eight*.

Keyword noise: crafting, sewing, cross-stitch, bee, bumblebee.

Today, when I went for my daily walk,^* I took my camera with me, intending to take shots for a planned series of posts about railway history that I’m slowly putting together. However, this post is more of a follow-up to the one from the other day on the various types of corvid you can see in this area.

I mentioned in that post that, around here, jackdaws nest in the girders of railway bridges in much the same way that pigeons do elsewhere. I’d only just passed under the railway bridge that I was thinking of when writing that, when I realised that I was walking along a few feet away from a jackdaw, at head height but on the other side of some iron railings. The ground on the other side of the wall was rather higher than by the footpath, so as I walked, the jackdaw was walking too, stopping to look for things in the grass. I tried taking a photo, and it didn’t seem overly bothered. I took a few before eventually it flew away.

You can see the significant feature of jackdaws that makes them easy to recognise: the silvery-grey head and neck.

Later on, as I was on a slightly more rural part of the walk, I spotted a much larger bird on the far side of a meadow. This is what I was talking about before: sometimes I see larger black birds, that might be ravens, but they are never quite close enough to get a definite identification. Even with the good camera, this is the best I could do.

To my eyes, that could well be a raven. It seems to have a raven-like profile to the head, and it seemed to be quite a big bird too. Whether it really was a raven: well, I’m no birdwatcher. If I do manage any better, more definite raven identifications, I’ll let you know.

* Daily in aspiration if not in fact.

Keyword noise: wildlife, corvidae, corvids, jackdaws, ravens, birds.

Those of you who read yesterday’s post about the Lyrid meteor shower may well be waiting on the edges of your seats for further information as to how the night went.

The short version is that I don’t think I saw any meteors. I went out after it was dark, sat in a chair, relaxed, and watched the sky. The sky was nice and clear; initially, at least. The Moon was rather bright, though, and before long high clouds started to roll in from the north-east. The moon lit the clouds up beautifully, but for anything else it was hopeless. I went in after half an hour, without a single meteor being spotted.

Still, I had also taken my camera out with me, as a bit of an experiment. I set it up on the tripod, plugged in the remote release, chose what seemed to be a good exposure and sat there clicking away. I don’t expect the results will be outstanding, not for a first quick attempt, but we’ll see what comes out of it. It might take a bit of experimentation in post-processing; I’ll keep you updated.

Keyword noise: astronomy, meteors, meteor shower, Lyrids.

There haven’t been many astronomical posts on here recently. Partly, that is, because as the seasons turn it’s no longer feasible for The Children to stay up and get the telescope out, at least not on a school night; and I have to stay up later and later for the sky to be dark enough. Indeed, a little over a month from now, it won’t be technically night at all for a while here. At this latitude there’s a whole two-month period, centred on the summer solstice, when it doesn’t officially get any darker than “astronomical twilight”. As of today, you have to wait after 10.30pm or so (local time, that is) for it to be night night.

Nevertheless, I do have plans in the pipeline, both for astronomy-themed things to write about here and astronomy things to actually do. So, watch this space. I’ve been taking hints and inspiration from a friend who takes some lovely astrophotography shots; we’ll see if it goes anywhere.

The reason I’m posting this today, though, is that it’s another one of those interesting times in the astronomical calendar. Tonight, some time in the middle of the night, it will be the peak of the April Lyrids meteor shower. The Lyrids are the debris from Comet Thatcher, which was discovered in 1861 and hasn’t been seen since, as its orbital period is around 415 or so years. The meteors themselves often tend to be of the “fireball” type, fat streaks of light that leave a noticeable smoke trail behind them, a bit like one of the Geminids I spotted last December.

As it happens, the weather forecast for tonight here is actually quite a good one, with (at the time of writing) clear skies in the forecast right through the whole night. Maybe I’ll try dragging a chair outside at bedtime and sitting back to watch the sky for a while, to see if anything happens.

Keyword noise: astronomy, meteor shower, meteors, Lyrids.

You might think that moving from an inner-city house to a suburban house, only about thirty or forty miles apart, you’d not see much change in the wildlife you see in the area. It’s been interesting, though, since moving, noticing the changes.

Take birds for example. In Bristol, the most common large birds were seagulls, and the most common small birds house sparrows; every house along our terrace had one or two house sparrow nests under the tiles at the edge of the roof. Occasionally a sparrowhawk would come and perch on the garden fence. The most common corvids were magpies, a family of them in most streets. When I started working from home, sitting at the window with a telegraph pole just outside it, one local magpie would regularly come to investigate me: perching on a rung of the pole at my eye-level, making eye contact and giving me a good curious look.

Here in the new house, the fauna is actually quite different. There are still seagulls, occasionally, coming up the valley; but the most frequent large birds are buzzards, slowly soaring over the neighbourhood sending all the other birds into a panic. The most common small birds are blackbirds and wagtails; pied wagtails in the garden and grey wagtails along the riverbank. In between, though, I often hear the calls of wood pigeons, but the most common birds of all are corvids of various types. I have been trying to sit down, watch them, and work out exactly which are which.

Magpies, of course, are easy to recognise, both by sight and by call. There are a few magpies here that come into the garden occasionally, but they’re not common as they were in Bristol. The most common birds here, though, are jackdaws. They arrive in pairs or in bigger flocks, and now I’ve learned to spot them, their silver heads are very recognisable. They nest here almost like pigeons do in a city, in spare ledges, under railway bridges and suchlike, as well as in more traditional spots such as in the hollow end of a sawn-off tree branch. They fill the main “medium-sized scavenger” niche taken by pigeons in a city centre.

There are, though, a few larger corvids, and these are the ones I’m having trouble with. Basically: are the larger black corvids I can see occasionally ravens, rooks or crows?

They’re probably not rooks. Rooks have pale beaks, and I haven’t seen any of those. Rooks, like jackdaws, tend to nest and travel in flocks; when I see a black bird larger than a jackdaw it’s usually on its own. Crows, then? Some of them probably are. The problem I have identifying any of these birds is: they have a distinct aversion to photography, if they spot you doing it, and I’m not someone with any specialist long lenses or other bird-photography equipment. If I see a bird from the window, in any case, by the time I’ve gone to get the SLR it’s probably flown off. If I photograph it with my phone, it’s either an indistinct black blob, or it sees me pointing my phone at it and, as you might expect, flies off. These birds, of the “indistinct black blob” category, I’m pretty sure are crows.

Every so often, though, I see a much larger black bird, usually much further away. I see it sitting on the peak of a roof, in the next street, and it looks much larger than a crow should look in my approximate mental map of these things. Is it a raven? Or just a particularly big crow? The problem there is, I’ve never seen it close-up, I think. Is it just an optical illusion, the sort of thing where somebody sees a black cat crossing their path a few hundred yards away and thinks it’s a panther?

If it is a raven, I suspect there’s probably only one of it. It doesn’t visit very often, and I don’t think I’ve seen it flying. Could it just be a big crow? I suppose it could. If I don’t get any closer sightings of it, maybe that’s a sign that it really is just a mirage; that, in my hand, it would just be the size of an ordinary crow. I’m going to keep looking. There might not be any sightings, but if there is, I’ll keep you updated.

Keyword noise: wildlife, corvidae, corvids, crows, jackdaws, ravens, magpies, birds.

This is not a bee blog, despite the bee-themed cross-stitch in the previous post and the burrowing bumblebee in the one before that. However, having said that, I did come across an interesting bee whilst out walking today.

This is a female Andrena fulva, the tawny mining bee. She was stumbling sleepily across the path in the spring sun, her golden orange abdomen standing out very strongly against the soil and grass. You could almost take the photo for a selective colour one.

Keyword noise: outdoors, wildlife, bees, solitary bees, tawny mining bees, Andrena fulva.

In lieu of a more informative post—I’m in the middle of researching something in-depth and historical, but everyday life and tiredness keep getting in the way—here’s an update on the current cross-stitch project, a couple of weeks on from the previous one.

As I’ve gone through it I’ve been leaving aside all the bits that feel as if they would be awkward and fiddly; but now, it feels as if there’s nothing but awkward fiddly bits left. It feels as if progress has slowed down because the overall outline hasn’t changed much; but there are an awful lot of colours now which I’m fairly sure I’ve completely ticked off the list.

The previous parts in this series were *part four* and *part five*. The next parts in this series are *part seven* and *part eight*.

Keyword noise: crafting, sewing, cross-stitch, bee, bumblebee.