Search found 7 matches

by Freefall74
Mon Mar 17, 2014 3:39 am
Forum: The Asterisk Café: Discuss Anything Astronomy Related
Topic: Camera Adapter
Replies: 5
Views: 1178

Camera Adapter

I have a Meade LXD-75 SN10 and a Canon EOS Rebel T3. Can anyone suggest a T-adapter for use?
by Freefall74
Thu Jun 06, 2013 4:59 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Star Size Comparisons (2013 Jun 06)
Replies: 103
Views: 33197

Re: APOD: Star Size Comparisons (2013 Jun 06)

SomeSleeplessGuy wrote:Is my maths wrong, or should it take about 1500 years to fly around the supergiant, not 1100?
d=2.8 bnkm
circumference = pi(d) = 8.8bnkm
vel = 900km/h
therefore flight duration = 9.77 million hours = 1535 years.

Or maybe they're not going around the equator...
You math'd wrong. 1535 = 265 days.
by Freefall74
Thu May 24, 2012 6:57 pm
Forum: Starship Asterisk: Handbook
Topic: APOD assessment poll #2
Replies: 43
Views: 140683

Re: APOD assessment poll #2

For those of you that have commented on the size of the text, if you hold down CTRL on your keyboard and scroll with your mouse, you should be able to adjust the size of the font (on most websites). Otherwise you can adjust them in the bottom right hand of the screen with the "zoom level" ...
by Freefall74
Tue Sep 22, 2009 2:51 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: NGC 3621: Far Beyond the Local Group (2009 September 19)
Replies: 14
Views: 3745

Re: NGC 3621: Far Beyond the Local Group (2009 September 19)

How the heck did I miss those posts above? I must not have seen the images while at work. Damned websense.
by Freefall74
Mon Sep 21, 2009 11:49 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: NGC 3621: Far Beyond the Local Group (2009 September 19)
Replies: 14
Views: 3745

re: NGC 3621: Far Beyond the Local Group (2009 Sept 19)

Anyone notice this (I had to look at the full size picture to see it.
There are seven dots on the image that look a little too symmetrical.
Is this an illusion/aberration/camera trick?
I've circled the region here:
http://www.geocities.com/shadow1122/ngc ... fall74.jpg
by Freefall74
Thu Jun 19, 2008 5:26 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Star Streams of NGC 5907 (2008 Jun 19)
Replies: 63
Views: 18898

The Star Streams of NGC 5907 (APOD 19 Jun 2008)

I was wondering, if I were on a planet in one of the "outer loops" of this image, what the night sky would look like? If I were this close to a galaxy, how big would it look? Could I distinguish its structure? Would it get as dark (at night) as it does here on Earth?