- Utah-Astronomy - mailman.xmission.com

ATM session report
by Hutchings, Mat 25 Jun '13

25 Jun '13

The ATM session on Saturday was lightly attended, but good work was done. I got some polishing time in on my son's 8" mirror. At 22 hours of polishing (machine), it is close to being what I consider polished out. For all of you who have made mirrors, yes, this is a long time to polish, but it is my first attempt at polishing exclusively by machine. I believe that I was not using enough weight for the majority of the time. Since doubling the weight on the tool, from 5 to 10 lbs., the progress has sped up some. After working the mirror for another hour this morning, the mirror is nearly polished out. Perhaps another 2 hours with Cerium oxide, then I'll cut over to rouge for a final hour of polish. Then I'll be on to figuring; yippee! Jeff brought his new ProtoStar secondary mirror, and we siliconed it to the telescope's spider hub. Of course this was after removing the stock mirror from the hub. Sometime, ask Jeff about his new technique for cleaning a secondary. Somewhere there is a video showing this. Josh brought along his newly built pulse width modulated circuit with which he is controlling the brightness of the laser for his bath interferometer. It works really well. He modified the original circuit that we have been using and made the PCB layout much more compact. I was able to show him a toner transfer technique which works very well to transfer laser jet toner onto a copper clad board. The toner acts as an etchant resist and is a good way for DIYers to make PCBs. He ended up with a couple of nice looking and compact boards. He populated one with components and applied power, and, sure enough, it worked! Hope to see you next time! Mat This message and any attachments are solely for the use of intended recipients. The information contained herein may include trade secrets, protected health or personal information, privileged or otherwise confidential information. Unauthorized review, forwarding, printing, copying, distributing, or using such information is strictly prohibited and may be unlawful. If you are not an intended recipient, you are hereby notified that you received this email in error, and that any review, dissemination, distribution or copying of this email and any attachment is strictly prohibited. If you have received this email in error, please contact the sender and delete the message and any attachment from your system. Thank you for your cooperation

2 3

Star Party in Soapstone Basin.
by Daniel Holmes 24 Jun '13

24 Jun '13

Gang, I've been asked to put on a star party for the YMCA Camp Roger. Kinda short notice, but if anyone's available for Monday night (the 24th), I'd appreciate it. They have a large open field that we can setup in. They will allow us to drive onto the field to setup as well. I'm not sure about power, don't count on it. There will be about 130 kids at the camp that night, they will provide enough counselors to keep the kids coming in waves. I think if we could have somewhere around 8-10 scopes that'd be plenty. It'll be quite dark, there's really nothing around, although they have a restricted view until about 20-30 degrees up in most directions. Plan on starting around 9:30, I'll be getting there somewhere around 8-8:30 so I can setup while it's still light. Plan on about an hour from entering Parley's canyon. Directions: http://www.ymcautah.org/camp-roger/directions GPS is 40° 34' 31.1" N 111° 02' 44.0" W If you have any questions, please email me directly. They also said that if we'd like to stay there for a while after the kids go to bed, we are welcome to be up there--it's pretty dark skies. Thanks, Dan -- Daniel Holmes, danielh(a)holmesonics.com "Laugh while you can, monkey boy!" -- Lord John Whorfin

1 1

Re: [Utah-astronomy] Star Party
by Joe Bauman 24 Jun '13

24 Jun '13

Oh sure, Patrick, it's an eclipse ... It's obviously a curled-up Slinky with a bright light shining on one side! ------------------------------ On Sun, Jun 23, 2013 11:50 PM MDT Patrick Wiggins wrote: >On 23 Jun 2013, at 21:46, Brent Watson wrote: > >> You would not recognize star trails taken from MY cockpit. Hand flying is not all that steady. > >As evidenced by this shot of the 1979 total solar eclipse as I flew over Idaho, one hand controlling the plane and the other holding the camera: > >http://users.wirelessbeehive.com/~paw/temp/79eclipse.jpg > >Grins, > >patrick > >> On Jun 23, 2013, at 10:20 AM, jcarman6(a)q.com wrote: >> >> On third thought, a star trail picture from your cockpit might be rather interesting - well, at least unique. We'd certainly find out how good a pilot you REALLY are. (hehehe) > >_______________________________________________ >Utah-Astronomy mailing list >http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy > >Send messages to the list to >Utah-Astronomy(a)mailman.xmission.com > >The Utah-Astronomy mailing list is not affiliated with any astronomy club. > >To unsubscribe go to: >http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy >Then enter your email address in the space provided and click on "Unsubscribe or edit options".

2 1

Star Party
by jcarman6＠q.com 23 Jun '13

23 Jun '13

On third thought, a star trail picture from your cockpit might be rather interesting - well, at least unique. We'd certainly find out how good a pilot you REALLY are. (hehehe)

3 2

Star Party
by jcarman6＠q.com 23 Jun '13

23 Jun '13

You can beat them all in your airplane!!!!! But I wouldn't bet much on a time exposure from your cockpit (hehehehe)

1 0

Re: [Utah-astronomy] Misquote / ISS
by Joe Bauman 22 Jun '13

22 Jun '13

Well, leave the press releases to the pros ..... ------------------------------ On Sat, Jun 22, 2013 7:27 PM MDT Patrick Wiggins wrote: >Ok, before anyone here has a chance to tease me 'bout it, I was misquoted in the piece in today's Tribune about the "Super" Moon. It's Saturn to in the south, not Jupiter. > >In other news, CalSky shows a so-so ISS pass tonight: > >Appears 22h29m47s 2.5mag az:298.1° WNW horizon >Culmination 22h34m57s -2.7mag az:224.8° SW h:29.5° > distance: 771.7km height above Earth: 413.9km elevation of Sun: -14° >Disappears 22h36m27s -2.6mag az:180.2° S h:20.2° > >patrick >_______________________________________________ >Utah-Astronomy mailing list >http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy > >Send messages to the list to >Utah-Astronomy(a)mailman.xmission.com > >The Utah-Astronomy mailing list is not affiliated with any astronomy club. > >To unsubscribe go to: >http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy >Then enter your email address in the space provided and click on "Unsubscribe or edit options".

1 0

Misquote / ISS
by Patrick Wiggins 22 Jun '13

22 Jun '13

Ok, before anyone here has a chance to tease me 'bout it, I was misquoted in the piece in today's Tribune about the "Super" Moon. It's Saturn to in the south, not Jupiter. In other news, CalSky shows a so-so ISS pass tonight: Appears 22h29m47s 2.5mag az:298.1° WNW horizon Culmination 22h34m57s -2.7mag az:224.8° SW h:29.5° distance: 771.7km height above Earth: 413.9km elevation of Sun: -14° Disappears 22h36m27s -2.6mag az:180.2° S h:20.2° patrick

1 0

Star Party
by jcarman6＠q.com 21 Jun '13

21 Jun '13

Monte Cristo is substantially closer to Ogden and the Ogden AS should have directions. Wolf Creek is very cold right now, maybe even snow, though we've had a dry winter. It's only really available in July and August. But you can't beat 9,800 feet!. However, it is also full moon to waning the two weeks he will be here.

3 2

Excellent ISS pass in a few minutes
by Patrick Wiggins 21 Jun '13

21 Jun '13

Here from CalSky about an ISS pass that's going straight overhead from N. Utah: Appears 22h30m16s 3.1mag az:306.0° NW horizon Culmination 22h35m40s -4.2mag az:217.2° SW h:88.9° distance: 413.6km height above Earth: 414.8km elevation of Sun: -14° Disappears 22h37m15s -3.2mag az:128.1° SE h:28.3°

4 3

Fw: scout camp at Payson Lakes -- soliciting help
by Richard Tenney 21 Jun '13

21 Jun '13

Anyone on the list available next week to help these guys out? I may be able, but am not sure given a busy work schedule. Any takers? Reply to me and I'll pass it along. TIA, /Rich ----- Forwarded Message ----- From: Bret Hicken <bret.hicken(a)hotmail.com> To: Richard Tenney <retenney(a)yahoo.com> Sent: Friday, June 21, 2013 9:46 AM Subject: RE: scout camp at Payson Lakes Tues, Wed, or Thurs night. We will have about 8 scouts and 4-5 leaders. ________________________________ Date: Fri, 21 Jun 2013 08:15:35 -0700 From: retenney(a)yahoo.com Subject: Re: scout camp at Payson Lakes To: bret.hicken(a)hotmail.com Bret, it's a possibility. What specific night(s) are you thinking about, and how many scouts+leaders are going to be there? /R ________________________________ From: Bret Hicken <bret.hicken(a)hotmail.com> To: "retenney(a)yahoo.com" <retenney(a)yahoo.com> Sent: Thursday, June 20, 2013 1:54 PM Subject: scout camp at Payson Lakes Rich I am a scout leader for a troop that is camping at Payson Lakes next week. We are considering doing the Astronomy Merit Badge and are wondering whether someone from your club might be willing to come to our camp one evening with a telescope for the boys to look through. I don't know if that's something you do, but I found your club through the Clark Planetarium and thought I'd ask. Thanks, Bret Hicken

1 0