Re: Re: [Utah-astronomy] Santa, I want a Canon 20Da for Christmas
Yes. Here is a photo from last night's session. http://www.utahastronomy.com/astrodeb/RZ_IMG_6821 If stars are trailed to the east, do I need to move the azimuth control to the west? Debbie
From: Joe Bauman <bau@desnews.com> Date: 2005/11/01 Tue PM 12:41:11 MST To: Utah Astronomy <utah-astronomy@mailman.xmission.com> Subject: Re: Re: [Utah-astronomy] Santa, I want a Canon 20Da for Christmas
Is that a 4" refractor? Thanks, Joe
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Wow, that's really nice. As to your question -- That sounds reasonable, but really I don't know!! I-- Joe
It depends on what part of the sky they object was in- what time did you take the shot? --- astrodeb@charter.net wrote:
If stars are trailed to the east, do I need to move the azimuth control to the west?
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Also make sure your drive wasn't set on the lunar rate.
--- astrodeb@charter.net wrote:
If stars are trailed to the east, do I need to move the azimuth control to the west?
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astrodeb@charter.net wrote:
Yes. Here is a photo from last night's session.
http://www.utahastronomy.com/astrodeb/RZ_IMG_6821
If stars are trailed to the east, do I need to move the azimuth control to the west?
Debbie
Here's a description (from Celestron) of the drift method. That's the method we used to align the Ealing and Grim Scopes at SPOC. I also used it for preliminary alignment of the telescope in my home observatory. It can take a long time to get it just right which is why I tend to use it only for permanent installations. But it is VERY accurate if done correctly. Patrick First, choose your star near where the celestial equator (i.e. at or about 0º in declination) and the meridian meet. The star should be approximately 1/2 hour of right ascension from the meridian and within five degrees in declination of the celestial equator. Center the star in the field of your telescope and monitor the drift in declination. * If the star drifts south, the polar axis is too far east. * If the star drifts north, the polar axis is too far west. Using the telescope's azimuth adjustment knobs, make the appropriate adjustments to the polar axis to eliminate any drift. Once you have eliminated all the drift, move to the star near the eastern horizon. The star should be 20 degrees above the horizon and within five degrees of the celestial equator. * If the star drifts south, the polar axis is too low. * If the star drifts north, the polar axis is too high. This time, make the appropriate adjustments to the polar axis in altitude to eliminate any drift. Unfortunately, the latter adjustments interact with the prior adjustments ever so slightly. So, repeat the process again to improve the accuracy, checking both axes for minimal drift. Once the drift has been eliminated, the telescope is very accurately aligned. You can now do prime focus deep-sky astrophotography for long periods. NOTE: If the eastern horizon is blocked, you may choose a star near the western horizon, but you must reverse the polar high/low error directions. Also, if using this method in the southern hemisphere, the direction of drift is reversed for both R.A. and DEC.
Hi all, a woman called and said she and her husband saw two meteors last night around Point of the Moutnain. They were bright and went nearly to ground level. Anyone have any idea what this might be? Anyone else see anything? Thanks, Joe
--- Joe Bauman <bau@desnews.com> wrote:
Hi all, a woman called and said she and her husband saw two meteors last night around Point of the Mountain. They were bright and went nearly to ground level. Anyone have any idea what this might be? Anyone else see anything? Thanks, Joe
See the description of the Taurid streams in the IMO Fall calendar at: http://www.imo.net/calendar/2005/fall Currently, there are three meteor showers that are mildy active above the background rate : 1) Southern Taurids (STA) Oct 01-Nov 25 Nov 05 223° 52° +13° 27 2.3 5 Maximum ZHR of 5 on Nov. 5 2) Northern Taurids (NTA) Oct 01-Nov 25 Nov 12 230° 58° +22° 29 2.3 5 Maximum ZHR of 5 on Nov. 12 3) The tail end of the Orionids The IMO 2005 Calendar states for the Taurids, that are associated with Comet2P/Encke that: "In 1995, an impressive crop of bright Taurids occured between late October to mid November, while in 1998, Taurid ZHRs reached levels comparable to the usual maximum rates in late October, together with an increased flux of brighter Taurids generally. This year brings the next potential October-November 'swarm' return." With a ZHR of 5 for the Taurids, you have to read the term "swarm" relatively. While out looking at Mars last Sunday over two hours, three meteors caught my eye between bouts at the eyepiece, although I was concentrating on Mars. Two were about mag 2 to 3, one was a bright bolid that went down to about 30-40 degrees above the southern horizon. I only caught the tail end of the last one. My back was turned to it and its initial brightness caused me to quickly look over my shoulder. The direction of all three pointed back to the Taurid-Orion radiant areas. Because of their relative brightness and direction, I did not associat these with the usual background activity of 3-4 meteors per hour. - Canopus56(Kurt) __________________________________ Start your day with Yahoo! - Make it your home page! http://www.yahoo.com/r/hs
participants (5)
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astrodeb@charter.net -
Canopus56 -
Chuck Hards -
Joe Bauman -
Patrick Wiggins