Wednesday, February 20, 2008

I'd say that the current excitement may be responsible for the SPA forum being down right now, they have probably been inundated with hits from casual visitors due to this evenings news articles.

It is nice though when Astro topics make headline news, it was the appearance of comet Hale Bopp which reignited my interest way back in 1997. See here for material on this, I remember at the time having access to the web at work when not many folks were even aware of the WWW. The JPL site was getting millions of hits from people wanting to know what was that big bright fuzzy object in the night sky. The first time I saw it I had to rub my eyes because I thought I was seeing things!

Later
Mitch
Well, there is plenty of excitement around right now in that there will be a total Lunar eclipse tonight (or rather the early hours of tomorrow morning), also, the US are planning to shoot down one of their own spy satellites which has been out of control for some time.

According to the TV news the planned shoot down is planned for around the same time as the Lunar eclipse. That means that some lucky people may see a Lunar eclipse as well as the mother of all shooting star incidents!

Things here in the middle of the UK are clouded out right now and I'm not holding out much hope of getting up at 3.00am as I am at work tomorrow. But if the US miss with their heat seeking missile I am due a pass of USA-193 tomorrow evening as predicted by Heavens Above.

later
Mitch

Monday, February 18, 2008

Managed to spend some time outside just now, we've had some high pressure weather the past few days and with it clear skies but very cold!

Anyway, first went out with the monocular and as my view north is better than the old house I decided to look for my old failed targets M81/M82 . I thought I'd found the culprits so went back to fetch the spotting scope on my camera tripod. Certainly looks like it could be them but they look more like stars than anything else, more investigation is required I think but there is certainly nothing else in the neighbourhood that looks remotely like candidates.

The waxing moon is lighting up the Eastern and Southern sky but still I could see Orion and Sirius beaming away while overhead the Plieades are twinkling away. I decided to test the scope on the double double of Mizar and Alcor in Ursa Major, a good test for optics is to split Mizar which is itself a tight double, the Opticron easily splits Mizar!

Whilst looking for M81/M82 i saw 2 small satellites whizzing through the fov, I still get a spooky feeling when I see them.

In the endless pursuit for M81/M82 I decided to try to find them using Stellarium which has labels for such objects. Interestingly it took quite an effort to find them even with labels! So out I went again but still no result, I can only assume that the spotting scope has insufficient aperture to show "fuzzies" although I have seen M31 through this scope.

It looks like I will have to wait to get the Skywatcher out and use the low power EP to "scope" around for this pair.

Later
Mitch

Wednesday, February 13, 2008

Last night we had a predicted ISS pass and I'd just read a news article about the shuttle going up to deliver the ESA Columbus Lab.

So I waited with camera at the ready and managed to get four shots as the ISS cruised overhead, eagerly I loaded the pics onto the computer but alas, you could only just see the track. The problem was that the sky was too bright meaning insufficient contrast, so although the ISS was nice and bright to the naked eye it can't be seen on the photo.

I'll try to have another go later tonight when the sky is darker as we seem to be getting 2 passes per eveing lately.

later
Mitch

Saturday, February 09, 2008

I just noticed a nice sunset and a very nice crescent moon so I checked on Heavens Above to see if I had any ISS passes in the next few days and thought I'd missed one by 2 minutes. So looked out of the window just in time to see it passing almost directly overhead, very bright indeed and probably the highest I've seen it so far.

It looks like a good week for passes so I will try to get to see it again especially as the Shuttle has just gone to join it.

later
Mitch

Tuesday, February 05, 2008

Just popped out to take the bin out and looked up to see lots of broken clouds scudding across the sky. Between the clouds Orion is nicely on view to my south and nearby Taurus and the Plieades, Capella is beaming brightly from Auriga and the familiar w of Cassiopeia is high almost overhead.

The sound of two military jets made me look south east to see two flashing lights heading at high speed in that direction.

Too much cloud at the moment to get the Opticron out but will take a look later, otherwise the skies look quite dark from here.

later
Mitch

Monday, February 04, 2008

I'm often asked about hardware, which brand, how much to spend etc, well here's my view, remember that I'm not a professional and I'm not even that experienced as an amateur compared to many many others. I have though in the last few years gone through the pain of deciding what to buy and living with the consquences.

Most people when starting out in Astronomy will usually assume that to do any useful observing you need large and very expensive instruments. I have found through personal experience that "hardware" quality and capability can vary quite amazingly.

The Skywatcher 200m aperture x 1000mm focal length "Newt" on its heavy duty motorised Equatorial mount might look very costly. The reality was a cost of around £500 in 2006 and depending on your personal circumstances only you can be the judge as to whether that is a lot of money. Of course for that money one can buy a washing machine or a Personal Computer.



If your budget won't stretch that far most peoples advice is to buy some binoculars. However, I could argue that a good quality pair of Binoculars could easily cost more than the telescope above!

I was tempted to buy some Bin's a couple of years ago but was wary as I don't have full use of my right eye, my logic was that I would be paying for two lots of optics when I could only use one. So a visit to my local "camera shop" introduced me to the Opticron brand which I had previously not heard of.

I was able to compare an Opticron spotting scope with another make and quickly decided the Opticron was better optically. So £240 poorer I left with my purchase and eagerly awaited a clear night, now, I was fortunate that in a former life I had worked as a professional wedding photographer and as such I already owned a heavy duty tripod which was instantly pressed into use.



You might be amazed to know that this scope can easily show the 4 Gallilean moons of Jupiter and if conditions are good then some cloud banding is also visble.



The scope has a zoom eyepiece (15-40x mag) and a 52mm objective lens and easily splits the double star of Albireo in Cygnus and the rings of Saturn are easily defined but don't expect to see too much detail.

A lesson learnt though is that I should have considered a larger aperture spotting scope rather than this "travel scope", at max mag the view is quite dim, ironically this is more noticeable in daylight when used for terrestrial viewing.

A later purchase acquired an Opticron 10x42 monocular which I also find needs to be tripod mounted to be of much use and is a fine instrument also.



Of course if you have a bigger budget then the sky really s the limit....




My view on what to buy is that you must consider the following....

  • Firstly - before parting with any of your hard earned cash, don't discount your most valuable asset, the good old Mark 1 Eyeball, if you let yourself get dark adapted properly and sit back in a deck chair on a good clear night you will be amazed at what you can see!
  • Cost - if you've just won the lottery then you won't care what I think because you'll just buy the most expensive kit in the catalogue, if you aren't a millionaire then get the best you can afford while considering the following.
  • Aperture - the wider the tube (OTA - Optical Tube Assembly) the brighter the image
  • Mounting - a camera tripod is fine for small scopes/bin's but at high mag's the sky appears to rotate very quickly meaning that you are constantly adjusting the scope to keep your subject in view. A motorised equatorial mount is great for keeping pace with the rotation of the earth as well as allowing long exposure photography. Remember though that once you've aligned the mount you can't move the scope around your garden without realigning it each time you move it. Also, the assembly above is very heavy, I can only just lift the assembly to move it an inch or two. So setup time has to be accounted for, several trips are needed to cart it all into position and then it needs to be assembled and aligned, although practice makes this quicker.
  • Optical quality - should really be number one but it is this which mostly impacts cost and so to most people the best optics remain out of range of our pockets. Also, I'd say that the importance of optical quality drastically increases with magnification, cheap high power EP's will be useless even on a good OTA and mount. Top of the range bin's can cost many hundreds of pounds but will show stunning detail compared with cheaper alternatives.
  • Magnification - don't expect to see the kind of views as seen in books and magazines that were taken using the Hubble Space Telescope. Also remember that long exposure photography reveals far more detail than the naked eye even on amateur scopes. Last year I purchased a low power 40mm EP for the Skywatcher which effectively turned it into a 25x200mm monocular and the view is amazing!
  • Computer guidance - sounds great, but having thousands of objects in a database is not much use if the optics won't let you see them!

To summarise, cheap optics on a good tripod will be a waste of money as would good optics on a cheap mounting. High magnification EP's reduce image brightness significantly and thus require more aperture in order for you to see anything and the higher the mag the more crucial is the mounting in terms of tracking and vibration free viewing.

Remember that "proper" scopes are like "proper" cameras, the EP's or lenses that come as standard are usually just that, basic. You can always buy better quality later, often a top quality EP or lens for a camera will cost more than you paid for the scope/camera in the first place.

Later
Mitch

Tuesday, January 08, 2008

Well, the first post of 2008 and I still haven't had the time to get the scope out. Over the xmas hols I was hoping to spend some time but whenever I had the time the skies were clouded out.

I have the added problem now that my only hardstanding area is next to the house and not the shed at the end of the garden. I suspect the weight of the scope would make the tripod sink into the soft grass.

Eventually I need to place 3 stepping stones such that when the tripod feet are set on them the mount is roughly polar aligned already.

I've also missed a few predicted ISS passes due to being late leaving work :o(

Here's to a more fruitful year with my sky watching!

later
Mitch

Friday, December 07, 2007

Believe it or not the kitchen will be completed this weekend, it's been a nightmare of a job.

But this means I can start to sort out my workshop and extract the Skywatcher for the first time since I can't remember when.

The December edition of Sky at Night magazine includes on their cover disk two episodes about Jodrell Bank among other things, watched them both last night.

So, as long as the nights stay clear I'm looking forward to getting some observing done, especially over the xmas hols.

later
Mitch

Friday, September 14, 2007

Just got back after picking the Mrs up from a night out, the sky is probably the clearest for a year.

So managed to pop out to see what my new skies are like for the first time since we moved. The most notable improvement is that I now have a clear view to my East and a darker sky to my South than previously.

Saw a meteor flash through Cassiopea before noticing that I can make out the bright band of the Milkyway.

All main stars of Lyra were visible to the naked eye including the double double which is very unusual.

I'm still very busy with the renovation of the kitchen so haven't had the time to sort out my workshop and hence the Skywatcher.

Next weekend we are spending a couple of nights in the Lake District so will hope to get some even darker skies assuming it stays clear.

More later.
Mitch

Wednesday, August 15, 2007

Despite the clouds tonight I managed to watch the ISS pass over just now, it was so bright that I could easily see it through the thin clouds to my West. Jupiter was beaming away to the South but clouds are rolling in, pity that I didn't take my monocular out to see the ISS, might have seen the shuttle.

Another pass is due tomorrow night so will hopefully catch the shuttle then!

later
Mitch

Monday, August 13, 2007

Last night I spent 2 hours from 10.00pm looking for the Perseids meteors, I managed to see 2!

But importantly I saw 2 meteors from the Perseid shower rather than what are known as "sporadic meteors". I know this because the 2 that I saw came from the direction predicted and I saw one flash to my left and one to the right within a minute of each other.
I'm hoping tonight to see more plus the ISS is due to pass over at 22.23 hours and with the shuttle docked should be quite a sight!

more later
Mitch

Tuesday, August 07, 2007

Just got my first sighting of the ISS since the house move, still busy on renovating the kitchen which should hopefully be finished in a few weeks :o(

Jupiter is beaming away at me from the south but I still haven't got the Skywatcher set up.

Hopefully I will get an evening of summer skywatching this week!

The OU day at the National Space Centre was interesting, but I wasn't impressed by the venue, more on that when I get the time.

later
Mitch

Saturday, June 30, 2007

Still busy with non astro stuff but did pop out last night to get a glimpse of Venus, nice and bright but it was too early to see Saturn. Saturn should be quite close to Venus but it wasn't dark enough, Jupiter should have been visible but a large bank of clouds was blocking my view.

The OU Astro day at Leicester is tomorrow, will try to do a write-up on that.

later
Mitch

Monday, June 25, 2007

No observing at all since the house move :o( However, I did get some good news last Friday, it seems that I managed to scrape a pass in the OU Introducing Astronomy short course, spurred on by a success I will be enrolling on another Astro course as soon as the worst of the DIY on the house is over.

Spent the last 6 weeks getting a base prepared for my new workshop and a major renovation of the kitchen.

Also, this coming Sunday is an OU day at the National Space centre at Leicester, free entrance etc, will try and do a writeup on that next week.

later
Mitch

Monday, April 30, 2007

Managed to complete most of the End of Course Assessment (ECA) for the OU Introducing Astronomy course and get it submitted on time! I think I might scrape a pass, if not I will give up this course of academic study and stick to observing!

Found the time just now to nip outside with my monocular and take a peek at Venus and Saturn. I can't remember Venus being on view for as long as this, but then I haven't been following all of this for a long time.

It looks like the new garden should be better than than the previous one for skies. But I will have to wait until I can build a shed for the scope before it sees any action. The thought of hauling it all down the stairs and back up hill to a suitable spot is not very appealing!

But I'm looking forward to some summer evenings lying back in a deck chair and taking in the whole sky. Last summer I had one evening in particular when I could see M31 with the naked eye, that was my best ever observinf session!

Later
Mitch

Thursday, April 26, 2007

Well, it's been 4 weeks tomorrow since we moved house, what a nightmare! I'm still surrounded by boxes in my new study including the Skywatcher which has yet to be unpacked.

My first priority is to build a base for a new workshop at the end of the garden and also a shed in which to keep the scope. I don't want to build an observatory yet as I need to think about where to put it based on views of the sky.

We have fine views to the south and east from the garden which is elevated from the house which in turn is elevated from the road. On a clear day I can see Cannock Chase and in particular a tranmitting tower at Pye Green which is 20 miles away! So I reckon I have my own "barometer" for checking seeing conditions, if I can see the tower then the air is pretty clear.

Anyway, after all the house moving etc I'd forgotten to do my assignment for the OU short course on Astronomy! I had 6 months to do this but only started it yesterday and it has to be in by next Monday!

I was a bit phased to start with by some of the questions but I think I'll have a reasonable stab at getting a pass. I'll try to post an overview of the course once I've finished the assignment.

later
Mitch

Sunday, March 04, 2007

Here are the best of my photos from last night's total eclipse of the moon....



The initial phase seemed to go quite quickly but as totality approached it seemed to take ages to be complete.





I now switched my attention to exposing for the shaded part of the moon rather than the bright area.



The star visible to the right of the moon is I believe 56 Leo, will have to get confirmation of that though.

Mitch

Saturday, March 03, 2007

Amazingly it stayed clear all evening, so I rolled out the skywatcher and hooked up the camera to get some photos as the lunar eclipse took place.

I still haven't fully recovered from the flu so am feeling pretty well pegged out right now, will hopefully post some photos tomorrow assuming they turn out ok, I haven't uploaded them to the PC yet.

Anyway, this is the first time that I remember us having a clear night for a Lunar Eclipse ever, a brilliant sight especially earlier on when it was apparent that a bite had been taken from the moon's disk.

I wish I had the energy to stay up to watch the moon reappear.

later
Mitch
Well, everyone is getting ready for the eclipse of the moon tonight, currently I have clear skies and have just been out with the Opticron. Nice view of Saturn quite high in the sky now, Sirius is very bright to the south and Orion was high in the sky quite early.

A quick look around the side of the house and Venus was beaming back at me quite high and very bright indeed.

Fingers crossed for the clouds to stay away for later!

cheers
Mitch