#1
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ASTRO: M74
Last weekend I had the "worst case scenario" for an astroimager: I was
standing under a nice dark sky (the first time since 2.5 years) with all my equipment set up, a nicely structured milky way above me, and before I could start any images my power converter blew up and I had to drive home without any images. At home I had to find out that the electronics of my G11 mount were also fried. Still I didn't want to go to bed without any images, so I set up my trusty old LX200 on my rooftop terrace and snapped some images of M74, to which I added some more exposures the following night. Taken from the middle of Berlin with an 8" Lx200 at f/6.3, SXV-H9 camera, 71x5 minutes. The image can also be found at http://ccd-astronomy.de/temp/m74-71x5gut.jpg Stefan |
#2
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ASTRO: M74
"Stefan Lilge" wrote in message ... Last weekend I had the "worst case scenario" for an astroimager: I was standing under a nice dark sky (the first time since 2.5 years) with all my equipment set up, a nicely structured milky way above me, and before I could start any images my power converter blew up and I had to drive home without any images. At home I had to find out that the electronics of my G11 mount were also fried. Still I didn't want to go to bed without any images, so I set up my trusty old LX200 on my rooftop terrace and snapped some images of M74, to which I added some more exposures the following night. Taken from the middle of Berlin with an 8" Lx200 at f/6.3, SXV-H9 camera, 71x5 minutes. The image can also be found at http://ccd-astronomy.de/temp/m74-71x5gut.jpg Stefan Sorry to hear about the G11 disaster. I'm sure that just puts a twist in the pit of your stomach. I hope you are able to salvage it. Great image, by the way. George |
#3
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ASTRO: M74
Dang.. hate to hear you lost that mount for awhile... This galaxy is a
favorite... I love the detail in your image. -- Regards, Doug W. www.photonsfate.com "Stefan Lilge" wrote in message ... Last weekend I had the "worst case scenario" for an astroimager: I was standing under a nice dark sky (the first time since 2.5 years) with all my equipment set up, a nicely structured milky way above me, and before I could start any images my power converter blew up and I had to drive home without any images. At home I had to find out that the electronics of my G11 mount were also fried. Still I didn't want to go to bed without any images, so I set up my trusty old LX200 on my rooftop terrace and snapped some images of M74, to which I added some more exposures the following night. Taken from the middle of Berlin with an 8" Lx200 at f/6.3, SXV-H9 camera, 71x5 minutes. The image can also be found at http://ccd-astronomy.de/temp/m74-71x5gut.jpg Stefan |
#4
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ASTRO: M74
Stefan Lilge wrote: Last weekend I had the "worst case scenario" for an astroimager: I was standing under a nice dark sky (the first time since 2.5 years) with all my equipment set up, a nicely structured milky way above me, and before I could start any images my power converter blew up and I had to drive home without any images. At home I had to find out that the electronics of my G11 mount were also fried. Still I didn't want to go to bed without any images, so I set up my trusty old LX200 on my rooftop terrace and snapped some images of M74, to which I added some more exposures the following night. Taken from the middle of Berlin with an 8" Lx200 at f/6.3, SXV-H9 camera, 71x5 minutes. The image can also be found at http://ccd-astronomy.de/temp/m74-71x5gut.jpg Stefan ------------------------------------------------------------------------ YIKES! And I thought I was having problems! I'd hoped Mr. Murphy had left me but sure sorry to hear he paid you a visit! Sounds like an expensive one as well or is that covered under a warranty? At least you salvaged something that night. I'd have been chewing nails too hard to have been able to function! Rick -- Correct domain name is arvig and it is net not com. Prefix is correct. Third character is a zero rather than a capital "Oh". |
#5
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ASTRO: M74
Was not your lucky day than except for the image!
Good old LX200 series........;-) Can the mount be fixed? -- Dirk van den Herik "Stefan Lilge" wrote in message ... Last weekend I had the "worst case scenario" for an astroimager: I was standing under a nice dark sky (the first time since 2.5 years) with all my equipment set up, a nicely structured milky way above me, and before I could start any images my power converter blew up and I had to drive home without any images. At home I had to find out that the electronics of my G11 mount were also fried. Still I didn't want to go to bed without any images, so I set up my trusty old LX200 on my rooftop terrace and snapped some images of M74, to which I added some more exposures the following night. Taken from the middle of Berlin with an 8" Lx200 at f/6.3, SXV-H9 camera, 71x5 minutes. The image can also be found at http://ccd-astronomy.de/temp/m74-71x5gut.jpg Stefan |
#7
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ASTRO: M74
Rick,
fortunately the electronics of the "non goto" G11 are not expensive. And Losmandy have been very fast shipping the parts, I ordered them last Sunday and the parcel arrived here in Berlin today. The "funny" thing is that while the new electronic board doesn't seem to work, the old one miraculously has recovered after giving no sign of life for some days, so the mount is in working order again. Stefan "Rick Johnson" schrieb im Newsbeitrag ... Stefan Lilge wrote: Last weekend I had the "worst case scenario" for an astroimager: I was standing under a nice dark sky (the first time since 2.5 years) with all my equipment set up, a nicely structured milky way above me, and before I could start any images my power converter blew up and I had to drive home without any images. At home I had to find out that the electronics of my G11 mount were also fried. Still I didn't want to go to bed without any images, so I set up my trusty old LX200 on my rooftop terrace and snapped some images of M74, to which I added some more exposures the following night. Taken from the middle of Berlin with an 8" Lx200 at f/6.3, SXV-H9 camera, 71x5 minutes. The image can also be found at http://ccd-astronomy.de/temp/m74-71x5gut.jpg Stefan ------------------------------------------------------------------------ YIKES! And I thought I was having problems! I'd hoped Mr. Murphy had left me but sure sorry to hear he paid you a visit! Sounds like an expensive one as well or is that covered under a warranty? At least you salvaged something that night. I'd have been chewing nails too hard to have been able to function! Rick -- Correct domain name is arvig and it is net not com. Prefix is correct. Third character is a zero rather than a capital "Oh". |
#8
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ASTRO: M74
Many many years ago (like the 70's) I built a 120v converter for running
the scope off the car battery. It had slow motions by changing the frequency. We were headed to the viewing site when a drunk driver coming toward me decided to use my side of the road. I took a cross country trip through the ditch with scope (10" f/8 Newt.) flying. The inverter crashed into something that smashed the glass in the meter. Otherwise we and the equipment were unhurt. But when we set up the inverter wouldn't work. One wag suggested that was because the crushed glass in the meter was holding the volt meter down. I pulled the glass away and watched in disbelief as the meter slowly came up off the pin, 30v --- 40v --- at about 90v the neon bulb on the scope lit up and the drive motor started turning. After about 10 minutes it hit 120v and was even the right frequency (60CPS -- this was before Hz replaced that term). It has worked fine ever since. I never did fix the meter. I still use it with that scope in the field and it still works fine, just don't hold down that needle! Sounds like you had something similar. Think in my case it was due to a temporary short that charged a large capacitor backwards. In fiddling with the meter I corrected the short and as the cap reformed (old style electrolytic) things started to work. Either that or the meter really was holding down the voltage Glad yours had a similar experience! Rick Stefan Lilge wrote: Rick, fortunately the electronics of the "non goto" G11 are not expensive. And Losmandy have been very fast shipping the parts, I ordered them last Sunday and the parcel arrived here in Berlin today. The "funny" thing is that while the new electronic board doesn't seem to work, the old one miraculously has recovered after giving no sign of life for some days, so the mount is in working order again. Stefan |
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