Posted 18 April 2004 - 01:24 PM
M65,66 (galaxies in Leo)
M13 (glob in Hercules)
M46,47 (OCs in Canis Major)
M36,37,38 (OCs in Auriga)
various galaxies in Coma Berenices
I had previously posted a question in this forum to the effect of: "what's the point of using binos for DSOs, when a scope will give a better view?" Well, I was further persuaded on the joys of binocular astronomy last night...even for small DSOs...thus answering that question for myself...
Observing DSOs last night was awesome...mainly because of the context one can appreciate when viewing over a large scale. In some ways, the galaxies I saw in binos last night were more impressive than in a scope, simply because they were surrounded by so many stars, and could be viewed within the setting of their constellation. Their 'tinyness' gave me a much better of a sense of how far away they were, and how small they are relative to the scale of the larger universe...so I guess I got a further visual appreciation for the immensity of space. And the overall aesthetic quality of a little galaxy smudge, or fuzzy patch of open cluster, set amongst a wide-field view of dozens of stars, was really breathtaking...
I'm not saying that DSOs are *better* in binos than a scope. You're definitely missing out if you can't zoom in on a rich open cluster (like M47) or a bright globular (like M13), etc., but let's just say that the view of some of these things through 15x binos is very worthwhile.
Posted 18 April 2004 - 02:00 PM
You'll appreciate what happened today. I went on-line to get instructions from Oberwerk site for collimation. Took scope, tripod, and small screwdriver outside. Tweaked the collimation with good results. As I was walking back to the house, I saw a large bird a tree in the woods next to my house. Grabbed my astrochair and quietly set up. It was a red tailed hawk. It was perched and searching the ground. Suddenly it swooped down about 100 feet an hit the floor of the woods. Back it flew with a snake in its talons. I watched, fascinated for 10 minutes. Filled my FOV. Awesome moment. I'm looking forward to tonight with them.
Posted 18 April 2004 - 03:28 PM
awesome observation of the snake predation!!
Those Obies have 5.6 deg FOV? Wow....that's huge. I think my Burgess are 4.4 deg. Note...5.6 degs * 15x = 84 deg AFOV. I didn't know binos went so wide.
As for targets, Dennis...I picked mine last night based on what I wanted to look at through my *telescope* (with the exception of M44). So, there are plenty of targets that probably would have been better for binos than the ones I looked at...
I'll recommend that you look for a bunch of open clusters (M35 is a really good one that I didn't bother with last night), but if you shoot for M46 and M47, try to get out pretty early. Canis Major sets within a couple hrs of dark these days.
At the opposite end, M57 and M13 probably won't be available in binos until pretty late....midnight or so? M57 didn't look like much, but the rest of the objects were pretty cool.
good luck...and have fun tonight!!
Posted 18 April 2004 - 04:11 PM
< In some ways, the galaxies I saw in binos last night were more impressive than in a scope, simply because they were surrounded by so many stars, and could be viewed within the setting of their constellation. Their 'tinyness' gave me a much better of a sense of how far away they were, and how small they are relative to the scale of the larger universe...so I guess I got a further visual appreciation for the immensity of space. And the overall aesthetic quality of a little galaxy smudge, or fuzzy patch of open cluster, set amongst a wide-field view of dozens of stars, was really breathtaking... >
This whole paragraph epitomises the wonder of astro-bino viewing.
That it comes from the mouth of one so sceptical about the possibility only a few weeks ago only serves to add even more weight to it.
Dennis , I suspect you got the TFOV figure wrong !
It is stated as 4.3 degrees for the 15 x 70 Oberwerk , which of course is very reasonable, if not about optimum for a 15x bino.
Regards , Kenny.
Posted 18 April 2004 - 04:52 PM
Posted 18 April 2004 - 05:58 PM
I think I'll just pack up my binocs, walk over to my old building with a sack lunch and my binocs/tripod and set up for about 45 minutes!
Posted 18 April 2004 - 06:31 PM
cool story, Bill!
Posted 18 April 2004 - 06:50 PM
I need some now. You guys are really a bad influence !!!
Posted 18 April 2004 - 06:55 PM
Jeff, Thanks, I will try for open clusters and may catch M45. I do want to try for M65/66 though.
Bill: It's so cool that you pack your binos for your gig return. Can't improve a ride home any better!
Tom: Lookin forward to a sack lunch report!
Posted 18 April 2004 - 10:25 PM
Thanks! All in a day's work!
You guys are really a bad influence !!!
Posted 19 April 2004 - 10:06 AM
Posted 19 April 2004 - 03:20 PM
I have got to tell you that I enjoyed your report a great deal. I must confess that of the various posts that we get it is the observational reports that I enjoy the most. I guess I am just more interested in the applied end of binoculars as opposed to some of the more technical aspects of their internal makeup. Your report was such that I could sit here in front of this computer and visualize the experience. That is all most as good as being there and doing it myself(remember I said all most!) Thanks for the ride.
Posted 19 April 2004 - 03:39 PM