Showing posts with label Cassiopeia. Show all posts
Showing posts with label Cassiopeia. Show all posts

Sunday, December 10, 2006

Last night we had a good few hours of clear skies here after a dodgy start with lots of broken cloud. So I had a go at taking some piggy back images, this is basically taking photos with the cameras own lens rather than through the scope but with the camera attached to the OTA. This way you can get wide field images and long tracked exposures, this one is of Lyra....



Canon EOS350D 35mm Equiv focal length 90mm, 200 seconds at f5.6 ISO:400.

Next is the Pleiades....



Same camera setup but 268 second exposure

The next shot was taken in the direction of Cassiopea but due to the dim view through the camera viewfinder it could be anywhere! Lots of stars, though some of the really tiny stars might be just noise!



Same setup with 411 second exposure

This has to be the downside to this aspect of imaging I think, due to the low magnification and the digital SLR's small frame size (compared to a 35mm SLR, it is 60% of that) you can only make out the very brightest of stars in the finder. Also due to the fact that the lens is autofocus even operating in manual mode is tricky because the lens does not have an infinity setting like the old lenses had. I guess part of the solution is to try and get some older non autofocus EOS lenses.

Finally a wide shot showing a part of Taurus including the Hyades....



Same setup with 259 second exposure.

We've had cloud and rain and lots of wind here all day, watched a recording of the shuttle launch from last night, interestingly it seems that whenever the shuttle is docked with the ISS there are no sightings from my location! Must be an amazing sight to see the whole lot going over.

more later
Mitch

Tuesday, October 10, 2006

Late yesterday afternoon the sky was as clear and blue as it has been for a long time, as the sun went down though some high cirrus clouds started to drift in. Next the waning full moon made an apearance. All in all not ideal conditions for setting up the scope.

So I decided to take the camera out to see what I could get n terms of static photos.

First up was Lyra...



Next was Cygnus....



Then Cassiopeia....



Finally, I've always wanted to try one of those photos where the stars trail around Polaris...



This final picture was a 30 minute exposure, and it took nearly another 30 mins for the camera to process it. After all that there was a lot of noise, the image above was after post processing in Photoshop to reduce noise and adjusting levels.

Sunday, September 03, 2006

Bought the September issue of the Sky at Night magazine this morning, so after reading that Neptune and Uranus are on view this month I decided to see what I could see.

So just as twighlight fell I was outside to take a look.

Got my first view in a while of Jupiter as it sank in the west, due to the low altitude I didn't see much other than the main moons.

The moon was bright to my south, which is where I was looking for the aforementioned planets, thanks to the moon and scattered cloud tonight's mission was not accomplished, my southern horizon is not good at the best of times. But I have a few weeks yet to see them, these will be a first for me, never saw them as a child like I did with Jupiter and Saturn, they are like old friends to me now!

Anyway, did get to see Lyra and Cygnus again along with Cassiopeia and of course Ursa Major. Albireo was a nice sight as always and the monocular gave a nice view of the doubles in Lyra but not of course the double double.

Earlier in the week I decided to upgrade the Meade ETX80 with something a tad more serious. This time I am refusing to be seduced by GOTO features and concentrate on aperture and a serious mount. After some advice I've decided to go for a Skywatcher 200mm Newt on a heavyduty motorised mount. At a price of £539 this looks like a bargain after I paid £300 for the Meade.

I was almost in the car on a 65 mile trip to the shop to buy this yesterday when I decided to check availability, that turned out to be a good call, the mount is out of stock until the end of the week. So hopefully this time next week I'll be the proud owner of a new scope. I will try to sell the Meade on eBay as I don't have the space to keep it as well as the new kit.

Tuesday, August 29, 2006

For the first time in ages I managed to make sure that I acclimatised my eyes properly, and on such a clear night it was well worth the effort.

I dragged out of the garage an obsolete reclining office chair and a footstool and leant back with my feet up for a good hour using the Mark I Eyeball aided occasionally by my Opticron Monocular.

Probably my most rewarding night's observing in a long time. Lyra and Cygnus were very clear and I could just make out the Milky Way running through that part of the sky, no mean feat where I live!

Looking through the monocular in these areas was breathtaking, countless numbers of stars!

I also had my eye on Cassiopiae and Perseus, the double cluster was a nice sight again.

For the first time I was able to spot the Andromeda galaxy with the naked eye!

Then, the Mrs turned on the bathroom light!

I was only today telling someone at work that you don't need to buy lots of kit to enjoy the night sky!

cheers
Mitch

Monday, August 28, 2006

Clear skies tonight :o)

Due to my restricted viewing at my location I've decided that I need to concentrate my observing on getting to know my particular piece of the sky better. Number one on my list has to be Cassiopiae and the multitude of clusters etc around it.

Interestingly it's an immediately identifiable constellation, but, when viewed through an eyepiece of any magnification I can't make head nor tale of it, I must need to use a ultra low powered instrument methinks.

The Monocular has now been tripod mounted due to some eBay purchases of Manfrotto clamps. I got a great view of Brochis cluster (coat hanger) tonight with this low powered intrument. Also some nice sweeping views through Cygnus and Lyra.

Incidentally tonight was probably my first proper view of Lyra as a constellation, last autumn/winter it was lower in the sky and thus obscured by light pollution.

Anyway, whilst getting my eyes skyworthy I noticed what seemed to be the ISS cruising from North to South across my zenith. Yet 5 minutes later, I saw another candidate for the ISS cruising in the opposite direction! The second satellite must have gone behind some high cloud because it dimmed considerably before suddenly brightening again.

The highlight of tonight though....I watched a meteor pass overhead from NW to SE through Cygnus and it was a sight! There was a definite smoke trail and it brightened a few times although I saw no debris falling away. It seemed to last forever but probably only lasted 15 seconds or so.

Anyway, a good start to the new observing season for us lackies who can't be bothered to stay up all night through the summer.

Later,
Mitch

Thursday, August 24, 2006

Well, nice clear night but not perfect seeing conditions...

Nice view of my favourite , Albireo.

Generally scanned the area around Cygnus with the Meade, lots of background stars in this area. If I lived in a dark sky area I'm sure this would be breathtaking to the naked eye. But for me, just tantalising glimpses of the Milky Way.

As I turned the scope around to the NE I saw a meteor flash by Cassiopeia, so I decided to look for some of the clusters to be found there.

Amazingly as I looked through the scope I saw a satellite moving quickly across the sky and decided to follow it through the scope. As I followed it I chanced upon the double cluster of NGC869 & 884.

I suppose my attraction to astronomy has always been a sense of a spooky feeling and the hairs on my neck moving when I realise just how far away things are, these clusters are 7,000 light years away. Of course that means that these stars might not actually exist now, because we are actually staring into the past. We see these stars as they looked 7,000 years ago, that's quite a long time in human history (if not most of it).

Anyway, not a bad night's viewing for my first of the "season".

Later
Mitch

Saturday, April 01, 2006

First clear night in weeks, OK not exactly clear, but I did get a nice glimpse of Saturn which is now high in the south. Orion and Sirius have moved quite a way westward since my last sighting.

Cassiopea was low to the north and the Plough was on its side to the north east.

The crescent moon looked impressive with quite a bit of earthshine lighting the shadow.

That looks like it for now, will check later to see if the cloud has cleared.