Showing posts with label ISS. Show all posts
Showing posts with label ISS. Show all posts

Thursday, December 28, 2006

Things are looking promising right now, just got the scope setup outside, should be dark enough to get the alignment done in ten minutes or so. Vega is always the first star to appear closely followed by Capella, Polaris isn't bright enough to be seen through the polarscope as yet.

Just checked on Heavens Above and I have 2 passes of the ISS today, first at 17.05 next at 18.40.

Well, the ISS showed right on time, got a very nice view as it crossed the sky, not the brightest of passes but still very impressive.

Next I set to aligning the scope, as I wasn't planning on taking any photos I was happy with a very rough alignment, with the new (xmas present) 40mm EP it takes quite a while to drift.

First target was the Pleiades, the 40mm EP is perfect for this, got the entire cluster in the same FOV, as I was adjusting focus a satellite whizzed by and appeared to increase in brightness as it crossed the FOV.

Next target was Taurus, I'm not sure if it's just me but the Hyades seems almost quite boring as there are practically no background stars in this area of the sky. As I aligned the scope on Aldebarran amazingly another satellite skimmed across the FOV!

As I stood back to look at the whole sky with the naked eye I spotted another ISS like object moving North at a steady pace. Of course it's because it's so close to sunset that I can see these satellites, later on they are not so easy to see (if at all).

Unfortunately that looks like it for now as the moon is merrily lighting up my southern sky and nicely highlighting all the high cloud that is making the seeing conditions not so good. Did get a nice view of Albireo with the 40mm (25x) and 25mm (40x) EP's.

Left the scope set up waiting for Orion, wanted to see M42 through the new EP. Got to 19.50 and Orion was beginning to show his shoulders and...you guessed, clouds started to roll in!

More later

Friday, November 03, 2006

Had another clear blue sky all day, nipped outside at just after 5.00pm to wait for a predicted ISS pass due to start at 5.13pm, sure enough there it was, not as bright as Tuesday night but still very impressive. Followed it for much of the way with the monocular, probably just wishful thinking but I'm sure I could just see some detail.

It was a very long track, next time I'll try to time how long it remains visible, seemed to last several minutes for most of which it was heading away from my location.

By this time the dreaded clouds were starting to make an appearance, before they completely ruined the view I tried again to find M81 and M82 using the monocular, failed again. Now these should be easy according my books, I think the problem is that my northern aspect is pretty well light polluted. I guess I'd have to hit them right on the nose with the Skywatcher in order to see anything, but scoping around with an equatorially mounted newt is not at all easy.

later
Mitch

Tuesday, October 31, 2006

Got home from work early today so had time to set up the Skywatcher just before it got dark. I wanted to get some more photos of the moon, 3 shots this time, 1/500th, 1/250th and 1/125th of a second exposure. This time the middle was the best I think.....



While framing this shot I saw a satellite "drop" by the dark part of the moon, always gives me a spooky feeling when I see things moving like that!

Compare this with a similar prime focus shot through the ETX80...the frame dimensions are identical...that means the images appear here as they would if viewed on a film strip.



After taking the photos decided to take a look at the moon with my lowest power eye piece, amazing detail - I will have to try to start finding my way around. Only problem is that even with 2 filters it still dazzles.

Just after that I got a view of what could only have been the ISS this was approx 17:45 and it was way brighter since last time I saw it (because of the work done recently by the Shuttle mission).

Just confirmed with Heavens Above that the pass was at 17:46 from West to East crossing overhead, will definitely need to get some more photos to compare with earlier in the year.

Just after this the clouds rolled in, maybe should have named the blog "cloud watching".

Later
Mitch

Thursday, August 24, 2006

Looks like a decent night for some observing at last. Just had the best view of the ISS so far, the track lasted for over 6 minutes and was very bright!

Will try to get out again soon with the scope to see what I can see.

Mitch

Friday, August 18, 2006

Just got my first view of the ISS for quite some time, followed it though the BGA Monoscope no detail visible, but I was able to watch it until it was quite faint before finally disapearig into the Earth's shadow

Quite a short track this time, from the south west as predicted by Heavens Above and disappeared south of Cygnus.

Quite cloudy though with clear patches to the south, we have had our first rain in weeks over the last few days.

Getting back into this after a dry spell!

Monday, March 06, 2006

Had another chance to photograph the ISS this evening, got a longer exposure this time (thus a longer track). I must try to get back to some proper astronomy now!



Of course this shot might have been better if the moon wasn't in the way, or would it?

The ISS is passing from right to left.

Immediately to the right of the moon is Mars. Farther to the right of the moon you can see the Pleiades and just below and to the right of the moon is Taurus.

The ISS disappears (in this photo) between Castor and Pollux in Gemini.

The hexagonal shape of the moon is caused by the iris leaves on the lens because I'd stopped it down to f11 to try to avoid over exposure of the sky in general.

Canon EOS 350D ISO:800 33 seconds at f/11.0

Sunday, March 05, 2006

Another successful track of the ISS at 18:26 tonight, watched the whole of its' track across the sky as it skimmed by the moon, probably the brightest I've seen it so far at a magnitude of -0.6.

Tried to view another Iridium flare without success though, must read up some more on these to ensure I'm looking in the right direction.

Clouds are rolling in again now but will try to get outside later if i can.

Thursday, March 02, 2006

Another clear sky!

I had an ISS track forecast for 18:47 tonight from the WSW. So, set up the camera early but noticed the thin crescent moon that I'd missed last night was on show with a nice amount of earth shine lighting the shadow. So took a few heavily bracketted shots of this first.

Then back to the ISS, sure enough it showed right on time, the following images are variations of my second attempt to capture it on "film". This shot was made with a Canon EOS350D using a 35mm SLR equivalent focal length of 28mm, exposure was 24 seconds at f8.0, speed 800 ISO.


Only had chance for one shot, problem is that the stars etc are so faint through the viewfinder, so didn't start the exposure as soon as I could and I wasn't sure if the ISS was out of view. Next time I will try to get more shots in. The photo above is "as is" from the camera.


This version is after adjust levels in photoshop, interesting that you can now see the atmosphere in daylight. The ISS is the long streak crossing Orion. Below is the forecast plot for this pass from heavens-above, I'd say the prediction couldn't have been better!

The predicted track of the ISS is shown by the solid line running right to left with a red arrow near its' beginning. Below is an inverted version of the final image as a comparison to the chart.




This is a cropped version of the same shot, must try to get some observing done while I have the chance.

Wednesday, March 01, 2006

Another clear evening, although after a long day at work I wasn't feeling up to much tonight.

However, I'd used Heavens Above to predict an ISS siting from my front door at 18:32 GMT. So set up the camera with a wide angle lens and a bulb shutter setting.

Sure enough, the ISS showed on time and was visible for much longer than yesterday, way past Orion and into the distance before it disappeared. Quite spooky really.

So, rushed back in and loaded the image to the PC, I could just make out the track, problem is I think that it was too light, Orion was barely visible at this time. Therefore contrast etc. meant the track wouldn't show. The problem with getting long exposures correct is a trade off of time versus light, to avoid overexposure you compensate normally by stopping down the aperture, doing that in this case means the track is very faint. Never mind, I will try again, especially as I have got the hang of watching for it coming.

BTW in order to use the Heavens Above predictor correctly you need to enter your location, which is quite easy as a list of towns is in the database.

Also had a quick look at Orion, Saturn and started to see some of the clusters low in the southern sky but these will take a lot of work I think.

Found out tonight that Arcturus in Bootes is the 4th brightest star in the Northern sky, it certainly was bright last night.

Tuesday, February 28, 2006

18:50 - At last, a clear sky!

19:15 - Already spotted the Southern Albireo, and....

19:32 - Just had my first attempt at looking for the ISS based on the predictions from Heavens Above. Right on the money, came out of the southwest and went into the earth's shadow just after it went by Orion, brill. Next time I will get my camera ready and try to get a long exposure to capture its track.

20:00 - Saturn is on view (also saw a satellite skim by as I was looking through the scope)and Orion looks brill, Sirius is quite high in the sky already.

22:20 - Arcturus is beaming brightly through the pollution to my East, wondered what it was so checked all my resources. Very bright indeed, getting a bit cold out there now.