Astrophotography photos


by Phobos
Tags: astrophotography, photos
mikeph
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#343
Jul15-10, 02:54 AM
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Thanks! I waited for a good hour for the right lighting. It's just a shame I didn't have my longer lens, I might have been able to get some resolution with a 200mm lens- although I don't know how I would have kept the camera still.

I took a similar photo handheld at about f/5.6, 1/30 second exposure and it was just a big blurry line, so I imagine at a large zoom I will need even more light.


You're right about the diaphragm blades, there are 6 which are slightly curved so at f/22 it is probably 80% hexagon, 20% sphere.
FawkesCa
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#344
Jul23-10, 09:56 PM
P: 44
ten points if you can figure out how i took this pic of Mars. (hint: i did cheat, but i DID take this with my own camera)
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cell 039.jpg  
FawkesCa
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#345
Jul23-10, 09:59 PM
P: 44
and just for kicks, ill throw this in with it
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cell 045.jpg  
adyarbakery
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#346
Jul25-10, 06:06 PM
P: 1
hi,

I took these photos of the sky from Yosemite.
http://www.flickr.com/photos/adyarbakery/4827577169/

I found that there were streaks on the image - which could be a planet, comet or a meteor. I know it is not a planet (I checked on stellarium for that). However I can not figure out if it is a comet or a planet. These are 8 second exposures. Any idea if it is a comet or a meteor?

I tend to gravitate towards it being a comet, since it was in the sky for an extended period of time (photographs taken after 5 minutes later also showed the streak).

Any ideas how to figure out?

thanks,
ab
428
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#347
Aug10-10, 09:46 PM
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Quote Quote by adyarbakery View Post
hi,

I took these photos of the sky from Yosemite.
http://www.flickr.com/photos/adyarbakery/4827577169/

I found that there were streaks on the image - which could be a planet, comet or a meteor. I know it is not a planet (I checked on stellarium for that). However I can not figure out if it is a comet or a planet. These are 8 second exposures. Any idea if it is a comet or a meteor?

I tend to gravitate towards it being a comet, since it was in the sky for an extended period of time (photographs taken after 5 minutes later also showed the streak).

Any ideas how to figure out?

thanks,
ab
Hello.
It is probably neither. Firstly, the trail in the first picture is curved and it has distinct dotted pattern. Secondly, the object appears to be moving towards (or perhaps from?) the constellation Perseus throughout the gallery. None of them look like or behave like that. My bet would be a man-made object flashing at ~1s intervals (since the are around 7 light pulses in each photo and your exposures are 8s).
428
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#348
Aug10-10, 11:40 PM
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I've been lucky tonight and managed to snap a perseid :). On the left side you can see constellations Perseus and a bit of Cassiopeia, the Double Cluster, M31 is visible as well (near the center of the image). The gradient present is a glow of a city. Photo details: taken by Sony Alpha 100, 30s exposure, f/5, 100 iso, location: Brno, Czech republic
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pers1182010.jpg  
Caramon
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#349
Aug15-10, 02:49 PM
P: 133
Hey guys!
I currently have a Dobsonian XT8 Classic (8" Aperature) telescope and I do regular observing at least once a week. I own a set of Celestron lenses and filters so my gear is decent! I have been observing for a few months now and I've gotten to take a wonderful look at the Orion Nebula (M42), Jupiter, M22, among many other objects. I've recently become interested in Astrophotography and was wondering how I would be able to start. What equipment and necessary skills would be required to begin a life long journey in Astrophotography? If you would be able to explain some things about Astrophotgraphy or post some links for me to read that would be wonderful!

This was my first moon photo taken with a digital camera:
chemisttree
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#350
Aug20-10, 04:20 PM
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I took this photo early this morning using an IR pass filter on a SPC900NC webcam. The moons are, from top to bottom, Ganymede, Io and Europa. Too bad there was no GRS visible.
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Jupiter 8-20-10_0000 Jupiter and Moons in IR.jpg  
Stanwyck66
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#351
Aug21-10, 12:35 AM
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I was out poking around in the sky last night and noticed a small spot on Jupiter I hadn't noticed before. The spot seemed a bit too small to be the GRS and looked like a dark point in my scope. Unfortunately, it didn't show up in the photograph but appeared where the arrow ends in this image.

Could it be possible I saw the shadow of one of Jupiter's moons to the bottom left?
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Jupiter.jpg  
Chronos
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#352
Aug21-10, 01:21 AM
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er, any picture with clouds and blue in the background are probably not mars.
russ_watters
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#353
Aug21-10, 07:31 AM
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Quote Quote by Stanwyck66 View Post
Could it be possible I saw the shadow of one of Jupiter's moons to the bottom left?
Not sure where you live or when that makes "last night", but Europa made a transit from 10:30PM EDT on 8/19 to 1:00 AM EDT on 8/20 and Io made a transit from 2-4PM EDT on 8/18.
russ_watters
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#354
Nov17-10, 11:20 PM
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Jupiter, my new personal best!
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chemisttree
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#355
Nov18-10, 03:19 PM
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Very nice, Russ!
baywax
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#356
Nov18-10, 10:43 PM
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Quote Quote by russ_watters View Post
Jupiter, my new personal best!
Whoa dude! El perfecto!!! Excellent clarity and detail... I understand the nearest object to the left in your photo is Neptune, is this correct?

I took my youngest son out to view Jupiter at its closest in 50 years and he was truly impressed. Then we went down to the 1m lensed telescope by the Planetarium... then he was like WOWed!!!

Cool!!!
russ_watters
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#357
Nov18-10, 11:20 PM
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Thanks, guys.

Quote Quote by baywax View Post
I understand the nearest object to the left in your photo is Neptune, is this correct?
The two other objects in the photo are Ganymede and Io.
baywax
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#358
Nov19-10, 07:40 PM
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Quote Quote by russ_watters View Post
Thanks, guys.


The two other objects in the photo are Ganymede and Io.
Ah... two of the 400 moons of Jupiter!!! thanks Russ!!
Redbelly98
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#359
Dec22-10, 07:41 AM
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I got some photos of the lunar eclipse Tuesday morning.

I used a Nikon Coolpix 4500, with a Kenko 8x32mm monocular mounted to it. All photos were later resized to 40%.

Here's a shot of the full moon Monday night, a few hours before the start of the eclipse. I was mainly setting up the focus of the monocular + camera, so that I wouldn't have to use the autofocus feature later on.



.

The total phase, about 3:40 a.m. Eastern USA time:



.

The partial phase, 3:53 a.m.:



.

Two exposure settings for the partial phase, about 4:00 a.m. The right-hand photo gives me a real, and eerie, sense of the Earth casting its shadow onto the moon.

baywax
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#360
Dec22-10, 11:10 AM
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Quote Quote by Redbelly98 View Post
I got some photos of the lunar eclipse Tuesday morning.

I used a Nikon Coolpix 4500, with a Kenko 8x32mm monocular mounted to it. All photos were later resized to 40%.

Here's a shot of the full moon Monday night, a few hours before the start of the eclipse. I was mainly setting up the focus of the monocular + camera, so that I wouldn't have to use the autofocus feature later on.


Far out Redbelly.... we missed the whole thing due to cloud cover, so, thank you!!


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