Beta

Slashdot: News for Nerds

×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

4 Times the Light

ackthpt (218170) writes | more than 8 years ago

User Journal 3

The ETX125 has got a workout already this year. Several times in the morning I've hauled it out before sunrise for a peek at Jupiter and I've gone up to the old airfield for a dew-shortened viewing. Also, set it up on a street corner downtown, where about 100 people viewed either Saturn or a portion of the Orion Nebula (M42) which was visible in city light.

The ETX125 has got a workout already this year. Several times in the morning I've hauled it out before sunrise for a peek at Jupiter and I've gone up to the old airfield for a dew-shortened viewing. Also, set it up on a street corner downtown, where about 100 people viewed either Saturn or a portion of the Orion Nebula (M42) which was visible in city light.

Now I move up to a 10" newtonian, with 4 times the amount of light. It's a beast and I'll have to build a cradle to haul the OTA around it. The tripod alone is about 30 pounds, plus there are three 10 pound counterweights.

The ETX will still get around, thanks to its portability and quick setup, where the newtonian will be for those outings for which I have sufficient time, energy and desire for.

cancel ×

3 comments

Astrophotography (1)

Shadow Wrought (586631) | more than 8 years ago | (#14610848)

Do you ever take pictures through your set-up? I took an astrophotgrapher class in college and it was a blast taking star photos.

Re:Astrophotography (1)

ackthpt (218170) | more than 8 years ago | (#14612006)

I've tried through the ETX with a Nikon D70s, but there's a lot of vibration from the mirror. I've pretty well been warned off trying anything of the like with the SN-10, as vibration on the OTA has a larger impact. I may at some point, performing what is refered to as a "Hat Trick", which means open the shutter with a hat over the aperature lens, wait for vibration to subside, pull hat away and count off the seconds then replace hat and close shutter.

Still, all this is a ways off as we are in the midst of the rainy season and lugging 50 lbs of stuff out only to get it all wet isn't appealing.

Jupter (1)

ackthpt (218170) | more than 8 years ago | (#14612370)

This [dragonswest.com] is about as good a shot as I have of Jupter, but I've been trying some other tricks lately. The thing I've been trying to do is capture Jupter, which is very bright, with it's moons. I'm having some difficulty with focus, too, but someone made a suggestion which I haven't tried, yet, making an insert with three holes in it and focus until three images resolve into one. Something to try in daylight I suppose.
Check for New Comments
Slashdot Account

Need an Account?

Forgot your password?

Don't worry, we never post anything without your permission.

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>
Create a Slashdot Account

Loading...