Author Archives: FJA

Clear skies 2010

As some of you might recall, I’ve been keeping a (admittedly probably unscientific) spreadsheet of clear skies vs cloudy ones (I’ve had friends and relatives keep a note of sky conditions when I have been away, such as at TSP). I’ve made a note of clear skies, partly cloudy ones, and totally cloudy ones. Clear and partly clear both mean observationally usable ones as, even when partly clear you can still do some observing, even if it’s with a pair of binoculars or half an hour with the scope.

According to my spreadsheet, 2010 had 111 totally clear nights, which is 30% of the total nights of the year. That’s nearly one third which, considering a lot of people think the UK has a largely unfavourable climate is better than you’d think, and that’s despite the horrible harsh and cloudy winter we’ve just had.
Clear and partly clear, added together, comes to 169 nights or 46%. That’s getting on for HALF of the nights here in this part of England being usable for astronomy during 2010. Quite a surprise. Unfortunately, as ever, there’s a caveat – the clearest time is May, June and July when all-night astronomical twilight keeps deep sky observing to a minimum. However, I will make a resolution to use those nights to observe and sketch the brighter DSOs, such as the Messier and brighter NGC nebulae and clusters, rather than just waste them. Maybe I will observe the planets, if any are around, as well. It will be a nice throw back to the time, 19 years ago, when I first got into observing and observed all through the summer twilight – my observing notes throughout the 1990s and early 2000s go right through June and July, no complaints about the twilit nights there!

So far in 2011, 24% of nights have been clear and 29% have been clear or partly clear, mostly during March. I will admit to not taking full advantage of them, mostly because they have coincided with the Moon’s gibbous and full phases.

Looking at all the clear skies we’ve had – and I hope 2011 and beyond follow suit – I am going to make more of an effort to make use of them. It’s not always possible to use every clear night, of course, as life tends to get in the way, as does tiredness and – let’s be honest – laziness, but using half or more would be great.

Yep, Britain has got a reputation for being fairly useless astronomy-wise but – and it does depend on where you live, as we have a varied climate for such a small archipelago – it’s not quite as bad as some people think. Most people work the usual 9am-5pm Monday to Friday routine and, as such, can only observe at weekends and on vacations, so they tend only to look at the sky then. That tends to give the impression that it’s semi-permanently cloudy, as they are only looking through a small window of time so, statistically it’s bound to give a skewed impression.
I am lucky though, in that I live in one of the clearest areas of Britain. The Isle of Wight, just off the south coast, has got one of the highest sunshine totals of anywhere in the country and this also means more clear nights. No, the UK isn’t brilliant and we’d all like 300+ clear nights a year but you’d have to move to somewhere like Arizona for that – although I don’t deny that if the opportunity presented itself I’d be off like a shot!

Thursday evening at the local astro society

The weather recently has been clear, but murky, and last night was no exception. I went to our local society’s observatory last night (every Thursday is the open evening and we usually get a mix of members and sometimes interested members of the public) and we took out some scopes, including a 10″ Orion Intelliscope.
Unfortunately the mist and murk were worse than the previous night and we only were able to look at the brightest Messiers. Galaxies, as expected, were worst hit and even normally good Messier galaxies were almost obliterated. We did look at M105, NGC 3384, M65 and M66 (NGC 3628, one of the Leo Triplet with M65 and 66, was utterly wiped out by the murk), M81, M82, open clusters M93 and M46 (not a bad view despite their low altitude in Puppis and the misty conditions), perennial faves M42 and M43, plus the attractive blue and yellow double star Iota Cancri and, later when it rose, Saturn, whose rings have opened up since I last saw it.

I have never used an Intelliscope before. The concept is similar to the Argo Navis system, a digital setting circle. You enter your wanted Messier or NGC number, the display shows some numbers, which are how far you need to push the scope in altitude and azimuth to get to where you are going, along with arrows showing which direction you need to push the scope. The numbers get lower the nearer you are and when you arrive at the location the display will read 0<>0 0<>0. The society’s Intelliscope was a little off, with the objects being just out of the field of view, but not by much. It’s a neat system and I’d like a similar thing for my scope, maybe an Argo Navis, one day.

Despite the crap conditions it was a nice evening and we also spent the time putting the world to rights as well as observing. It was disappointing though, that only a handful of us were outside, with most people choosing to sit inside the building and chat. It’s an astronomy society, so it would be nice if everyone was outside but that seems to be the difference betwen UK and US amateurs. Over there, it seems to be a more vibrant and active scene.

Clocks go forward on Sunday morning. Yuck.

Observing, 23rd March 2011

With the waning gibbous Moon not now rising until a minute after midnight (after one of the brightest full Moons in 20 years, thanks to it being at perigee), I hauled the 12″ out for a galaxy-hunting session in Leo. We’ve had a nice run of lovely spring weather just recently, with lots of sunshine and some warmth, which makes a nice change after the coldest and cloudiest winter I can remember. Unfortunately, this has coincided with the rise of the Moon, so deep sky observing has been out of the question, but I’ve gone out several times with the binoculars for a general look round.

Date: 23rd March 2011
Conditions: Chilly (8C/46F), clear but murky; mist was coming down and making the skyglow worse. Very dewy indeed.
Transparency: III-IV (murk wiped out some of the fainter galaxies)
Seeing: II
NELM: Around 5.8
Equipment: 12″ f/5 dob, 22mm Televue Panoptic (69x), 15mm Televue Plossl (101x), 8mm Televue Radian (190x)

NGC 3628, galaxy in Leo – Fairly large, low surface brightness but not too faint. Elongated east-west. Dust lane visible with averted vision. In the 8mm Radian (190x) it stretches across the field of view. One of the ‘Leo Trio’ with M65 and M66. 69x, 101x, 190x

NGC 3593, galaxy in Leo – Fairly faint, elongated E-W oval. Brightens to a non-stellar core. 69x, 190x

NGC 3379, galaxy in Leo – M105, one of the Messier objects in the H400. Very bright. Round with gradual brightening towards the centre. Makes an attractive pair with NGC 3384. Nice. 69x, 190x.

NGC 3384, galaxy in Leo – Next to M105 this isn’t quite as bright and is slightly smaller. Brightens slightly towards its centre. 69x, 190x

NGC 3389, galaxy in Leo – Much fainter than 3379 and 3384. Elongated east-west. Featureless. Not easily seen at 69x, needs more magnification to be seen well. 69x, 101x, 190x

NGC 3379, 3384 and 3389 all fit into the same field of view at all powers (69x, 101x, 190x).

NGC 3377, galaxy in Leo – Bright oval. Oriented east-west. Bright, non-stellar core. 69x, 190x

NGC 3810, galaxy in Leo – Dim. Oval. Slightly brighter core. 69x, 190x.

NGC 3640, galaxy in Leo – Bright and round. Brightens gradually  to a non-stellar core. I looked for the tiny companion, NGC 3641, but only suspected I saw it. That will definitely have to wait for a less murky evening. 69x, 190x

NGC 3900, galaxy in Leo – Fairly bright. Oval, elongated north-south. Brightens gradually to core. 69x, 190x

I packed up at 2145 because it was getting mistier, murkier and generally yucky, causing lots of light scatter that you don’t normally see here, and the galaxies were getting wiped out. This takes me up to 140 out of the 400 Herschel objects, which is 35% of the total. I still have five objects in Leo to do, so hopefully I can get these remaining ones within the next few weeks. I know that, in order to complete the H400, I am going to have to go further south, either to the Canary Islands or TSP again one year – but that is no hardship!

Here’s the so-called ‘supermoon’ (which is what the media were calling it), one day after full, as it rose. I leaned out of an upstairs window, while handholding my Canon 7D and 400mm lens. It was low down and very golden. Even for a deep sky person it was a very attractive sight!

I haven’t given up on sketching, it’s because I want to get as much done of the Herschel 400 as possible so, for the time being, I am just finding things and doing written descriptions of them. I will go back to sketching as soon as possible.
I have got exciting news, but more on that soon…

Observing 9th March 2011

Date: 9th March 2011
Conditions: Chilly, no wind at first but increased later on. Waxing crescent Moon was a bit of a nuisance and interfered slightly. Some drifting cloud
Seeing I
Transparency III-IV
Equipment: 12″ Dob, 22mm Televue Panoptic (69x), 15mm Televue Plossl (101x)

NGC 2129, open cluster in Gemini – Totally dominated by 2 8th mag stars; the rest are much fainter (11th mag) plus some much fainter ones. At 69x it’s hazy but is resolved at 101x. Bright, not scattered, quite compact. 69x, 101x

NGC 2266, open cluster in Gemini – Triangular haze with three slightly brighter stars in a line along SE side. One bright star at tip. Compressed, quite rich and partly resolved using averted vision at 101x. 69x, 101x

NGC 2304, open cluster in Gemini – Scattering of stars in semi-circle. There are 4 or 5 brighter stars with more scattered around. Fairly bright. 69x, 101x.

NGC 2355, open cluster in Gemini – Faint at 69x. Irregular. 69x shows dozens of faint stars on a misty background. At 101x the misty background has a vague S-shape. 69x, 101x.

NGC 2395, open cluster in Gemini – Irregular group of fairly bright stars plus fainter ones. Not rich. About 15 bright stars plus a couple of dozen or so fainter ones. Elongated N-S. 69x, 101x.

NGC 2420, open cluster in Gemini – Moderately faint patch. Rich, concentrated, fairly large. At 69x it’s mostly unresolved mist but at 101x there are 14 or so brighter stars scattered across a background of unresolved stars. 69x, 101x.

Packed up at 2100 because the sky was getting murkier. I have now finished the H400 in Gemini, these were what was left over from last year.

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Space shuttle Discovery returned to Earth for the last time yesterday. The shuttle program is nearly at an end, with only an Endeavour mission and a possible Atlantis mission, both to the ISS, left. It’s a shame that, when Atlantis lands for the final time (if her mission gets approved), the shuttles will never fly in space again, instead finding themselves as museum pieces.

Observing 7th March 2011

Finally! After five months of endless cloud and the odd clear spell being around a gibbous or full Moon, I have actually managed to do some observing! It’s been a totally cloudless day, a rarity in itself over this winter (which has been the cloudiest winter for 50 years, as well as one of the coldest), and the clouds stayed away as it got dark so I opened the shed and pulled out the scope. Everything seemed fine, the collimation was not too far out and the shed and silica gel had done their job of keeping the scope protected during some fierce winter storms and snow and the mirrors mould-free.

Date: 7th March 2011
Conditions: Chilly, cloudless, slight breeze with one or two stronger gusts that banged shed doors, no dew, no frost. That horrible light mentioned in my previous post has now gone!
Seeing: I
Transparency: II-III
NELM: 5.8-6.0
Equipment: 12″ dob with 22mm Televue Panoptic (69x), 15mm Televue Plossl (101x), UHC, OIII filters.

I decided to knock off the remaining Herschel 400s I had left to do in Orion, left over from last year. The one failure was NGC 1788, no matter how much I searched, I couldn’t find this little bugger. I think it had got too low.

NGC 2169, open cluster in Orion – This is an interesting cluster which looks like the number 37, upside down. The ‘7’ is the westernmost part of the cluster. It has three bright stars and four fainter ones which make up the number 7.
The ‘3’ is slightly larger and brighter than the ‘7’, it also has three bright stars plus one slightly fainter one and six much fainter ones. There is a clear gap between the two components with no stars between them.. Very attractive. 69x, 101x

The sketch of 2169, below is not recent. It’s a sketch I did some years ago but I thought I’d add it in to give an idea of what it looks like.

NGC 2194, open cluster in Orion – Easy to find. Quite faint but rich. There are a few quite faint, but distinct, stars in front of many, many fainter ones. Partly resolved. Detached – stands out well despite faintness. 69x, 101x

NGC 2186, open cluster in Orion – Awkward to find, especially as it’s not shown on my Sky Atlas 2000.0 so I had to come back to the house and print off a MegaStar chart with telrad circles on it. Not easy with one eye tightly shut to preserve its night vision! Located within a triangle of bright stars, which points east. Faint. Poor. Not concentrated. 69x.

Hunted for NGC 1788. Got annoyed with it and gave up as I just could *not* locate the thing, so I moved on.

NGC 1999, reflection nebula in Orion – This was easy to find, as it is located just south of the Orion’s Sword complex. Small, round and bright. Fuzzy with brighter middle. UHC does not improve the view much if any while OIII is totally useless. 69x, 101x, UHC, OIII.

It was a short session, slightly under a couple of hours. I’d inevitably forgotten a few items, such as printing off MegaStar charts and other bits I had to return to the house for, but it was a good session and I’m pleased. It’s nice to be back, although I’d not been idle because I’d done a lot of birding (my other interest) over the winter. The Moon’s on the rise again so, after this coming weekend, it might be a while before my next session. And I managed to avoid trampling the daffodils too badly in my observing patch, there were casualties but only one or two.

This is the sort of weather we’ve had over the winter (observing shed is the grey one in the background). Cloud, cold and more snow than usual.

I never did get to the Isle of Wight Star Party this year. I intended to, but caught a bad cold so, deciding that I would not be thanked for sharing (as well as not feeling like standing around in the dark with it) I didn’t go.

Isle of Wight Star Party

Registration for the 4th Isle of Wight Star Party opens on Monday, 17th December. The 2011 star party dates are 3rd to 7th March inclusive. So, if you’re a serious observer or – dare I say it?! – imager, and fancy a few days in a picturesque place with dark – and hopefully clear – skies, then you’re welcome to register and join in.
I’ve already bagged a room, no freezing in a tent this year.

2011

It seems like ages since I’ve posted and, indeed, it IS ages since I’ve posted. The reason is that I have very little to write about; we have had near unbroken cloud cover for over two months and the rare night it has been clear, or partly clear, there’s been snow on the ground and it’s been too cold and unfavourable for observing.

Added to which, I’ve developed a potentially serious liver problem (I have an enlarged and painful liver) and find bending around, e.g. to look through the finder or moved the scope in and out of the shed, difficult. It’s hopefully not life-threatening or anything like that but it is a nuisance. As to what the problem actually is, time and MRI scans will tell. The annoying thing is I am not a heavy drinker and, apart from getting a bit pissed at parties during my 20’s, I never have been.

The Webb Society AGM got postponed due to heavy snow so my talk will have to wait until the late spring or early summer when it is rescheduled.

Watching the news over the last few days made me think back to my trips to Australia. They are having their wettest summer in 100 years and half of Queensland is under water, while it is also raining in Sydney where the first day of the fifth and final Ashes Test is affected by the wet stuff. Last year, it rained a LOT when I was there and it was frustrating both for observing and birding. While it’s an awful situation to be in, having your premises flooded and possessions ruined, with no end in sight and I certainly take no pleasure in seeing the disaster unfold on the news, I can’t help thinking back to a Greyhound Australia coach driver last year, who could not resist the temptation to brag to the Poms on his bus about how we British ‘f**ked up’ (his words) by sending the convicts Down Under while continuing to live in the cold wet British Isles. “Mate, we live in paradise” he boasted to me. I am not sure about that at present, especially as his home town is Rockhampton which is currently being inundated by rising water.
Listening to some Australians, you’d think it’s endless sunshine there and they certainly like sticking it to us Europeans about how crap our weather is compared to theirs but, in truth, it’s not like that, even accounting for freak weather. Southern NSW and Victoria, especially the Melbourne area, has – or can have – very British weather, as does Tasmania.
I also can’t help thinking Australia’s climate is changing, certainly in the east, although I expect this is likely to be temporary. The years-long drought is over and it’s cloudier and rainier more than it used to be. Every time I see posts from Aussie observers on forums such as Ice In Space, clouds and rain seem to be a bigger issue than in previous years with no end in sight.
Anyway, I hope it doesn’t get any worse for them and that the weather clears up soon and it goes back to being a little slice of paradise because it is a pretty place. Good luck to the flood victims in Queensland, it is a horrible situation for them.

Now, the Ashes series…despite having already retained the little urn, I now hope England crush Australia in the final Test and win the series 3-1… 😀

‘Stargazing Live’ starts on the BBC for three nights tonight. Unfortunately the weather does not look as it it will co-operate. The Vectis AS has a public observing night on Wednesday the 5th and we currently have our fingers crossed for a clear evening.

I have no no plans for 2011 regarding travel. I am not going to TSP this year and the only astronomy-related things I have planned are the Isle of Wight Star Party and, depending on when it is re-scheduled, the Webb AGM. I do hope we get some good clear nights as my observing program has stalled, thanks to near-endless clouds, and I have made no inroads into the Herschel 400 or the Herschel II (which I am also doing at the same time) at all this winter.

Anyway, Happy New Year and may we all have many clear nights in 2011.

Still here

I am still here, although I have done absolutely zero observing since 11th October, due mainly to near-endless clouds and rain. We’ve had a month’s rain alone this past week and force 9 gales, gusting to storm force 10 on Tuesday and Thursday but, luckily, my observing shed has held up well in the face of the violent weather, it’s still standing and has let in no water, despite the combination of force 10 gusts and horizontal, torrential rain.

The only astronomy-related thing I have done recently is, with a fellow member of VAS, a talk at a primary school about astronomy. Children are not my favourite demographic as I don’t really have any real rapport with them, but it was an enjoyable evening, nonetheless, with a good turnout despite the atrocious weather and the kids, although they could fidget for England (one was totally hyperactive and slightly annoying) were interested, surprisingly knowledgeable – except one who said that loads of security lights and street lamps were a good thing! – and asked some good questions. Even their parents didn’t ask stupid questions! It had originally been planned to be an observing session but conditions were downright dangerous outside with severe gales and flying debris, so it was downscaled to a presentation istead.
The reason I was there was that, during a committee meeting of VAS (the first after the AGM) they needed what is rather grandly titled ‘Outreach and events liason officer’ and asked for volunteers. None were forthcoming and I – reluctantly, it has to be said as I am not into outreach whatsoever; I can see the value of it, but it is not for me because on a clear night, I’d rather be doing my own thing – agreed to take on the role. So, I have to be seen to go to the events.

It’s Remembrance Sunday and I’m watching the Cenotaph coverage on BBC1. The sheer scale of death and destruction caused by war just goes to show how pointlessly stupid war is, and how insanely destructive the human species can be. We trash the environment, we kill other species and we fight endlessly over ridiculous things such as religion, land and one country looking at another the wrong way. It’s politicians who are stupid, not the sailors, soldiers and airmen who have to fight the wars; the armed forces are, as someone once said, “lions led by donkeys”.
Not only that, we’re in constant danger, if the goverment and media are to be believed, of being blown up by brainwashed morons and lunatics with a warped view of Islam. How can a species – us – that does fantastic things such as space travel, science (when it is not abused), astronomy, make music and build great ships, etc, also be such a stupid one? We are obviously not as advanced or as civilised as we like to think we are. Maybe one day, we’ll grow up a bit.
And that’s my ‘deep’ bit for this year. And I’m not usually as misanthropic as this either! Oh, and the ‘Last Post‘ gets you *right there* doesn’t it?

On a more cheerful note, after the largely downbeat nature of this post, I am tentatively planning a trip to the southern hemisphere at the end of next year or beginning of 2012. I want to see the southern sky again and, as the 20″ plans are unlikely to happen for a long time for various reasons, I have decided to do the cheaper option. I’m considering Australia again and I’d like to go during their summer (our winter) for two reasons. Firstly, I’d like to see the southern summer skies, which I have not done and, secondly, escaping least one crappy, dismal UK winter is an appealing prospect if only for three or four weeks. The Aussie weather should, at least, be better in November-February than it was in May last year and, in any case, will be far better than the cold, wind and rain of north-western Europe.

Also, I am giving a talk at the Webb Deep Sky Society AGM in Cambridge on 4th December. Owen Brazell emailed me and asked if I’d be prepared to give a talk about the Texas Star Party so I thought ‘why not?’ and agreed. I’ll do it as a Power Point presentation with loads of pictures of big scopes, scenery and night skies. Getting to Cambridge is a pain from the Isle of Wight but, hopefully, I can get a lift up there. I’m looking forward to it, actually, because I have not been to a Webb meeting since 2005 and it will be nice to catch up with people again.

Bugger

It looks like the 20″ project’s on hold for a bit, maybe indefinitely but most probably not. Life’s got in the way and I’ve found I need to put the money I’ve saved so far to other uses. So, I have to start again from the beginning, which is a bit of a bugger to say the least. The trouble is, while astronomy’s my biggest interest, other things sometimes have to take precedence and, being on a low income, such as I am, I have very little spare so when things get chucked at you out of the blue then the savings need to be sacrificed.

Oh well, I’ll start again and see how far I get this time before the car breaks, I get hit for a tax demand, the dog gets sick, something else breaks…

Comet 103P/Hartley 2

It’s slightly murkier tonight with clouds moving in, so I decided to just go out with the binoculars and track down the latest comet to grace our skies, Comet 103P/Hartley 2. I have a big soft spot for comets because they look like deep sky objects but are transient, and only visit us for a short time. Comets can go either way, they can either be big and bright and even Joe and Jane Public are aware of their presence or they can be tiny, small, faint and elusive. As comet hunter and deep sky observer David Levy once said ‘Comets are like cats. They have tails and do precisely what they want’, indeed comets that have been predicted to be bright have been disappointing and vice versa. Sometimes comets that have been predicted to be big and bright have been just that but, comets often prove astronomers wrong!

103P/Hartley 2 is not bright but it is big. It’s also obvious in a pair of 8×42 binoculars and I found it quite easily where it presently lies in Perseus. It’s heading towards Auriga and is supposed to brighten by the end of the month but, as is usual, the Moon will interfere.
In the binoculars it was large – much larger than I expected, ever so slightly elongated, diffuse and with a brighter core. It also looks quite green.

I took a couple of photos of the comet, and have indicated it with an arrow pointing towards it. The photos illustrate not only the comet but also why I am not an astrophotographer – they are not the best! They were taken with my Canon 40D and a 70-200mm lens at f4. Click for enlargements.