Orbiter-Forum  

Go Back   Orbiter-Forum > Far Side of the Moon > Astronomy & the Night Sky
Register Blogs Orbinauts List Social Groups FAQ Projects Mark Forums Read

Astronomy & the Night Sky Astronomy news & discussions, Astrophotography, Telescopes, Star Charts, & more. Galaxies, Stars, Planets & Moons, discuss it all here!

Reply
 
Thread Tools
Old 04-25-2011, 12:24 AM   #181
Eli13
Fish Dreamer
 
Eli13's Avatar
Default

Might be but I'm in Tennessee if that helps out then again.... really i don't know but i would have to look.
Eli13 is offline   Reply With Quote
Old 04-25-2011, 04:34 AM   #182
JEL
Addon Developer
 
JEL's Avatar
Default

Astronomy Clubs in Tennessee:

http://www.astronomyclubs.com/1/190/44/0/club.aspx
JEL is offline   Reply With Quote
Old 04-25-2011, 10:56 AM   #183
Nazban
Orbinaut
 
Nazban's Avatar
Default

lucky guys, since im living in dubai theres not that many astronomy clubs(only 1 XD)
But I dont get time to even go out and stargaze with them
Nazban is offline   Reply With Quote
Old 04-25-2011, 02:37 PM   #184
george7378
DON'T PANIC

Default

Eli13: You don't need a telescope to take pictures of the sky - try filming the space station when it comes over, or if you have a DSLR camera or even a higher-end compact camera, try taking pictures of constellations, or the Moon with some scenery. Good luck!

Here's my latest offering - some video of Saturn taken through my telescope last night. It's a bit dark (please let me know if it is too dim for you to see properly and I'll try to change it) because, for some reason when I convert from my camera's local .mov format to a movie maker compatible one, it seems to get dimmer. Anyway, here it is:

george7378 is offline   Reply With Quote
Thanked by:
Old 04-25-2011, 09:10 PM   #185
JEL
Addon Developer
 
JEL's Avatar
Default

@george7378, any chance you'd make a short video of the star Vega with that telescope? I'm curious to see what that would look like compared to what I can get with my spotting-scope (to see how big a change it would be for me if I went for an upgrade like that)

I can't really track much dimmer objects than Vega with the spotting-scope, because I have to track the object while the camera sits on the scope (I don't have a finder mounted, atleast not yet). So anything dimmer than what the camera-sensor can pick up real-time is impossible to locate (it'll only show up after the long-exposure shot, which obviously isn't any help when tracking)
JEL is offline   Reply With Quote
Old 04-25-2011, 09:26 PM   #186
george7378
DON'T PANIC

Default

Quote:
Originally Posted by JEL View Post
 @george7378, any chance you'd make a short video of the star Vega with that telescope? I'm curious to see what that would look like compared to what I can get with my spotting-scope (to see how big a change it would be for me if I went for an upgrade like that)

I can't really track much dimmer objects than Vega with the spotting-scope, because I have to track the object while the camera sits on the scope (I don't have a finder mounted, atleast not yet). So anything dimmer than what the camera-sensor can pick up real-time is impossible to locate (it'll only show up after the long-exposure shot, which obviously isn't any help when tracking)
Hi JEL,

No problem - I'll do it at the next clear night (when Vega is up, of course - it is pretty low down at the moment) and will post it when I'm done. I don't think there will be that much difference with regards to what you can see (obviously all stars appear as points of light no matter what you view them with), but a larger scope will make stars and galaxies look much brighter. Anyway, I'll make a video and post it.

...also, the ISS passed in front of Betelgeuse tonight - I just managed some photos:

http://www.flickr.com/photos/georgek...sen/5654776563

http://www.flickr.com/photos/georgek...sen/5654816503
george7378 is offline   Reply With Quote
Thanked by:
Old 04-25-2011, 10:29 PM   #187
Eli13
Fish Dreamer
 
Eli13's Avatar
Default

Quote:
Originally Posted by JEL View Post
Thanks, but none of them are near me.....

"Eli13: You don't need a telescope to take pictures of the sky - try filming the space station when it comes over, or if you have a DSLR camera or even a higher-end compact camera, try taking pictures of constellations, or the Moon with some scenery. Good luck!"

I wish I even had that. I don't have a nice camera at the moment, well I don't even have a camera. The only camera I do have is my phones camera which is being repaired at the moment (little brother dropped it on the tile and cracked the screen cover ) oh well, its still funny to see people be amazed that you can tell when the next moon phase is. Thanks for all the feedback though!
Eli13 is offline   Reply With Quote
Old 04-26-2011, 03:02 AM   #188
JEL
Addon Developer
 
JEL's Avatar
Default

Quote:
Originally Posted by george7378 View Post
 Hi JEL,

No problem - I'll do it at the next clear night (when Vega is up, of course - it is pretty low down at the moment) and will post it when I'm done. I don't think there will be that much difference with regards to what you can see (obviously all stars appear as points of light no matter what you view them with), but a larger scope will make stars and galaxies look much brighter. Anyway, I'll make a video and post it.
Thank you so much George
(no rush, just whenever you get around to it. I just bought my spotting-scope so even if I do go for an upgrade it won't be anytime soon)

The spotting-scope I'm using (which uses glass-lenses, so basically comparable to a refractor-scope I guess, except it doesn't mirror the image upside down or left-to-right) comes with a zoom eye-piece (20x to 80x zoom), and I get what I can't really describe as other than quite severe chromatic aberration at high zoom-levels. It's even there when zoomed all the way out. I've read that all refractors have that to some degree and that reflectors do not, such as I gather your sky-watcher 250PX is (or is it a combo? a catadioptric? I couldn't really find out, when I looked at my local scope-dealer's website to see the specs of that scope (they don't have that particular model, only other sky-watcher models))

The objective lens diameter of my spotting-scope is 80 mm (3.15 inches), so it's a lot smaller than yours.
The field-of-view angle it produces is 1.5 to 0.7 degrees (according to the manual).



Quote:
Originally Posted by george7378 View Post
 the ISS passed in front of Betelgeuse tonight - I just managed some photos
and you don't use any scope for that, right? It's just the camera doing a long exposure? (and then some good timing to capture the exact moment ofcourse )

Last edited by JEL; 04-26-2011 at 03:08 AM.
JEL is offline   Reply With Quote
Old 06-03-2011, 01:53 PM   #189
Yoda
Donator
 
Yoda's Avatar
Default

New image I took of M51 tonight with a ATIK Titan and 3.3 focal reducer using a LX90.
15x30 seconds, 10 times 20 seconds, 5x60 seconds.



---------- Post added 06-03-11 at 07:53 AM ---------- Previous post was 06-02-11 at 11:02 PM ----------

Damn,

I just noticed the new Supernova in M51 which I imaged last night but some French Astronomer beat me to reporting it so he gets the credit !

Damn the French !!
Yoda is offline   Reply With Quote
Old 06-15-2011, 02:00 AM   #190
JEL
Addon Developer
 
JEL's Avatar
Default

A wide-angle night-sky shot, showing Polaris and various constellations.

Even though this photo is taken at the darkest time of the night, the sun-light is clearly visible to the north. It seems to contribute more to light-pollution than the city-lights themselves.

I edited the photo in GIMP (increased contrast to make stars stand out a bit more clearly)
Attached Thumbnails
IMG_0414b1_JEL.jpg  

Last edited by JEL; 06-15-2011 at 02:12 AM. Reason: updated photo
JEL is offline   Reply With Quote
Thanked by:
Old 06-21-2011, 03:51 PM   #191
RisingFury
OBSP developer
 
RisingFury's Avatar
Default

As promised...

Here are 5 globular clusters taken with Telescope (D = 70 cm, f=2.031m, F/D=2.9 resolution=0.914"/px).

They're all gray-scale because we need them for an astronomy project for my uni (mapping the radial distribution of stars).

Seeing was 2.1", but thankfully the Moon was eclipsed, giving us better conditions. The images are stacked using DeepSkyStacker.

We were supposed to shoot M12 as well, but one of our team members screwed up the tx point command - forgot to rotate the telescope, so we ended up with double images of M5 instead.

M3 - 6 x 60 s



M5 - 10 x 30 s



M13 - 5 x 30 s



M92 - 5 x 50 s



NGC 6229 - 4 x 60 s



The telescope:


I also took a pic on my phone. I'll post it on weekend.
RisingFury is offline   Reply With Quote
Old 06-24-2011, 08:46 PM   #192
RisingFury
OBSP developer
 
RisingFury's Avatar
Default



Telescope Vega, in all her glory - well, at least as much as I could take in.
This is taken from within the cupola. The pic is taken in low light because the telescope was already being focused. It's also taken on my phone...


The telescope itself sits on a thin layer of oil to keep it isolated from any vibrations (because of turning of the cupola and the drive motors) and to insure smooth movement when tracking. The telescope needs to be re-focused before each use, because of thermal expansion / contraction and mechanical stresses.

The camera being used is Apogee-Alta U16 and needs to be cooled to around -25C before use.

Last edited by RisingFury; 07-20-2011 at 02:52 AM.
RisingFury is offline   Reply With Quote
Thanked by:
Old 06-26-2011, 09:11 PM   #193
george7378
DON'T PANIC

Default

I haven't posted any photos recently (mainly because of exams) but now that they are over, here are my latest offerings:

http://www.flickr.com/photos/georgekristiansen/

http://gkastro.tk/
george7378 is offline   Reply With Quote
Thanked by:
Old 07-02-2011, 05:48 AM   #194
Yoda
Donator
 
Yoda's Avatar
Default

Just bought a modified Canon Rebel ( IR filter removed) and here's my first image with it ( 5x 1 minute stacked using a 105 M refractor).

Not too shabby for a test image !

Yoda is offline   Reply With Quote
Thanked by:
Old 07-03-2011, 04:14 AM   #195
Unstung
Orbinaut
 
Unstung's Avatar
Default

Just captured the ISS; the line is curved because of camera shake. I didn't have enough time to take another shot with the timer on. It's a 15 second exposure.

(Direct link, 1600*1200: http://i6.photobucket.com/albums/y20...2/IMG_0505.jpg)

Guess which one it is.
Unstung is offline   Reply With Quote
Thanked by:
Reply

  Orbiter-Forum > Far Side of the Moon > Astronomy & the Night Sky


Thread Tools

Posting Rules
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
Forum Jump


All times are GMT. The time now is 07:03 AM.

Quick Links Need Help?


About Us | Rules & Guidelines | TOS Policy | Privacy Policy

Orbiter-Forum is hosted at Orbithangar.com
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Copyright 2007 - 2017, Orbiter-Forum.com. All rights reserved.