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Messages - fealeybob14

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151
General Discussion / Re: Observing tonight?
« on: May 28, 2017, 03:46:25 PM »
Jupiter's Red Spot and Io's shadow at 9 pm!   I'll likely stay at home however to observe ... depends on how late other obligations go.
Bob

152
General Discussion / Re: Observing tonight?
« on: May 26, 2017, 05:56:46 PM »
Thanks Mike.  I have been to that tributary of the Zumbro just a bit further south on CR 15 many times and thought it was a pretty good dark sky site.   Here's an old photo of my son Bryan and myself with a smallmouth caught during a rain storm from that little tributary!
 

153
General Discussion / Re: Observing tonight?
« on: May 26, 2017, 04:40:02 PM »
Hi Mike C
Where is "Keller" ?
Thanks
Bob

154
General Discussion / Re: Local telescope/mirror makers?
« on: May 12, 2017, 07:54:25 PM »
Hi Neil
A number of us have ground and polished mirror blanks in the past.  My experience was over 35 years ago when I did a 4.5 inch and then a 10 inch mirror.  I obtained the mirror kits from Edmund Scientific, however I do not think they have the kits at this time.  You might check sites such as Cloudy Nights https://www.astromart.com/classifieds/details.asp?classified_id=146067 for an online ad from someone who is trying to sell a kit.  There is a site found on a Google search that advertises mirror blank kits for a 6" mirror. http://firsthanddiscovery.com/6-inch-telescope-mirror-kit.html.  However they don't include a 'polishing tool' with the kit??? (In the Edmund kit there was a second Pyrex blank that was part of the polishing tool as it was fixed to the barrel you walk around and the second blank that was to become the mirror was on top and the abrasive was in between the two.  The top blank became concave and the bottom one convex.  A manual described the strokes you had to make to develop the concave mirror surface into a circular and then a parabaloid surface which you could test and polish.  Not sure the references above have everything you need but check it out if you haven't.

155
General Discussion / Re: Observing tonight?
« on: May 12, 2017, 01:50:10 PM »
Some planetary observations from 5/11 and 5/12.  Fairly nice skies for viewing the brightest objects.  Jupiter was imaged about 30 minutes following the double moon shadow transit, with IO's shadow still visible as was the Red Spot.  Saturn was imaged this am at about 4:30 am and Venus around 5:30 am.  All are short 20-30 ms (?) exposures with the Orion 5MP camera.  Still quite a bit of atmospheric distortion present but who can complain about the weather in the last 2 days!

156
General Discussion / Re: Observing tonight?
« on: May 07, 2017, 01:33:09 PM »
Randy, Jeff and I had a nice crowd (50-55 people or so) at the Gloria Dei Church parking lot observing event.  Jupiter and the moon were the main objects of interest.  A mom on an evening walk in her neighborhood stopped by and mentioned her son Nick (?age 14 or so) would be excited to join in.  Mom called Nick and he came right over with his new DOB and Randy and Jeff help him collimate his scope.  Soon Nick was showing other guests his scope and it was clear he was a talented youngster with a keen interest in science (solar astrophysics in particular).  We enjoyed the views of Jupiter and moon and we were fortunate enough to have relatively clear skies (some unexpected clouds did show up initially) and a view of the bands, moons and Red Spot of Jupiter and moon craters.  I talked with Dr. Roger Harms and his wife and learned of their donation of our club scope "Elvis" now stationed at Eagle Bluff Environmental Learning Center (too bad we didn't get it set up for the NCRAL!).  It was great to hear the exclamations of the guests when viewing Jupiter, many for the first time, through a telescope!

157
General Discussion / Re: Observing tonight?
« on: May 06, 2017, 11:51:29 AM »
Can one say where we will be setting up scopes tonight?  (at the soccer fields or at the church)?

158
General Discussion / Re: Nebraska Star Party 2017
« on: May 06, 2017, 11:49:58 AM »
Not the star party.  But I am going to Nebraska for the eclipse in August.

159
Outreach Programs / Re: Music of the Spheres
« on: May 03, 2017, 05:45:40 PM »
Hi Randy.  I should be free and able to bring over a small telescope.  Do you know the layout of the setup spot so we cans see the S sky?
Bob

160
General Discussion / Re: Observing tonight?
« on: April 18, 2017, 04:18:11 PM »
Jupiter remains an awesome target for small telescopes all of April (and most of the early summer).  Hopefully we'll have clear skies for the evenings of the NCRAL.  I will bring my 8"SCT and Orion 5MP camera and flat panel to show Jupiter and later Saturn.
The images below were from that setup.  The rapid Jupiter rotation is evident as the Red Spot comes into view over 20 minutes in the top three images.  Note also a moon shadow (? which moon uncertain).  The image below was exposed to show Jupiter's moons, one of which appears on the left.  The disc of Jupiter was overexposed so I cut and pasted Jupiter's disc (a bit less noisy due to image stacking) at 11:00 pm from the video taken about the same time.

161
General Discussion / Re: Observing tonight?
« on: April 12, 2017, 10:19:52 AM »
Great meeting and venue last night Randy.  Couldn't resist opening the dome and getting Jupiter in the cross hairs again. Initially didn't see the Red Spot but after 2 hrs it was appearing and after another half-hour (now about 12:45) took some images.  Seeing was OK and took some video and stacked images for the photo below.

162
General Discussion / Re: Observing tonight?
« on: April 02, 2017, 11:03:28 AM »
Jay and I didn't see the comet from our backyards in SE Roch (actually closer to Marion) on 3-31.  We did get to better collimate my Meade 8" SCT however (thanks Jay!).  After Jay left Jupiter was rising and the photo below (a single frame with the Orion 5 MP camera) was a notable improvement (for me anyway!) in showing Jupiter detail. (Most of the zonal bands and the Great Red Spot are visible).

163
General Discussion / Re: Observing tonight?
« on: March 02, 2017, 10:00:23 PM »
It's not much warmer tonight but at least there's no snow in the forecast!  Nice western sky with the moon and Venus well placed for observing.  The image below combines both but in reality they were not that close together.  Venus is a bit distorted and the moon a bit overexposed (forgot the moon filter) but both presented interesting targets for the camera.

164
General Discussion / Re: Observing tonight?
« on: February 06, 2017, 01:01:25 AM »
Another moon pix taken at sunset on 2/5/2017.  Same setup as Morning Moon above.  Not sure the moon's colors are correct but it looked a little better in color than with the color removed.

165
General Discussion / Re: Observing tonight?
« on: February 03, 2017, 07:50:28 PM »
Another Venus attempt tonight (2/3/2017).  Skies clear and cold but fair amount of turbulence.  Experimented with ISO and exposure times (best was ISO 200 at 1/20 sec).  Best image below, strongly enhanced in Photoshop Elements to sharpen and rotated 180 degrees.

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