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#1
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Comet Garradd again...
After seeing that it was a clear night, and the moon wasn't
interfering yet, I ran out for another look at Comet Garradd. I hadn't seen it since my last effort when it was just creeping away from Pegasus' nose, and now it was buzzing under the tip of Sagitta... I didn't take the time to dark adapt, and while I'm not nearly as cursed by light pollution as most people, my situation hasn't gotten any better over the years. Also, I don't think my eyes pick up dim objects quite as well as they did when a younger man was using them. I studied the chart ( http://cometchasing.skyhound.com/ ) carefully... When I got out to look at about 10:00pm CDT, I spent a few minutes looking around at the constellations and bright "M" objects to let my eyes adapt just a bit. Not a bad evening... 66 F, a few locusts chirping, and clear skies. Then I swung my binocs up to Sagitta and took a look. I found a blur in about the right place, but not EXACTLY in the right place. I was a little confused and frustrated. I came in and checked the chart again, and then went out and looked again. There was the little fuzzball, but still, it wasn't quite where it should be... Was I seeing some of the background confusion in the starclouds of the Milky Way, and missing the comet? I went back in and checked the chart again... AH HA... The tick marks on the chart weren't for 0 hours Universal Time, but for 13 hours on the 24th and 8 hours on the 25th... OK, so I'm a better observer than a chart reader... THAT'S it... I'm a better observer than a chart reader... That works.... Marty |
#2
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Comet Garradd again...
On 8/24/11 10:49 PM, Marty wrote:
After seeing that it was a clear night, and the moon wasn't interfering yet, I ran out for another look at Comet Garradd. I hadn't seen it since my last effort when it was just creeping away from Pegasus' nose, and now it was buzzing under the tip of Sagitta... I didn't take the time to dark adapt, and while I'm not nearly as cursed by light pollution as most people, my situation hasn't gotten any better over the years. Also, I don't think my eyes pick up dim objects quite as well as they did when a younger man was using them. I studied the chart ( http://cometchasing.skyhound.com/ ) carefully... When I got out to look at about 10:00pm CDT, I spent a few minutes looking around at the constellations and bright "M" objects to let my eyes adapt just a bit. Not a bad evening... 66 F, a few locusts chirping, and clear skies. Then I swung my binocs up to Sagitta and took a look. I found a blur in about the right place, but not EXACTLY in the right place. I was a little confused and frustrated. I came in and checked the chart again, and then went out and looked again. There was the little fuzzball, but still, it wasn't quite where it should be... Was I seeing some of the background confusion in the starclouds of the Milky Way, and missing the comet? I went back in and checked the chart again... AH HA... The tick marks on the chart weren't for 0 hours Universal Time, but for 13 hours on the 24th and 8 hours on the 25th... OK, so I'm a better observer than a chart reader... THAT'S it... I'm a better observer than a chart reader... That works.... Marty smiling Thanks Marty! -Sam |
#3
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Comet Garradd again...
On Aug 25, 5:49*am, Marty wrote:
After seeing that it was a clear night, and the moon wasn't interfering yet, I ran out for another look at Comet Garradd. *I hadn't seen it since my last effort when it was just creeping away from Pegasus' nose, and now it was buzzing under the tip of Sagitta... *I didn't take the time to dark adapt, and while I'm not nearly as cursed by light pollution as most people, my situation hasn't gotten any better over the years. *Also, I don't think my eyes pick up dim objects quite as well as they did when a younger man was using them. *I studied the chart (http://cometchasing.skyhound.com/) carefully... * * *When I got out to look at about 10:00pm CDT, I spent a few minutes looking around at the constellations and bright "M" objects to let my eyes adapt just a bit. *Not a bad evening... *66 F, a few locusts chirping, and clear skies. *Then I swung my binocs up to Sagitta and took a look. *I found a blur in about the right place, but not EXACTLY in the right place. *I was a little confused and frustrated. *I came in and checked the chart again, and then went out and looked again. *There was the little fuzzball, but still, it wasn't quite where it should be... *Was I seeing some of the background confusion in the starclouds of the Milky Way, and missing the comet? I went back in and checked the chart again... *AH HA... *The tick marks on the chart weren't for 0 hours Universal Time, but for 13 hours on the 24th and 8 hours on the 25th... *OK, so I'm a better observer than a chart reader... *THAT'S it... *I'm a better observer than a chart reader... *That works.... Marty Do yourself a favor Marty and match Kepler's representation of the motion of Mars against the background constellations with modern time lapse footage of the motion of both the Earth and Mars - http://upload.wikimedia.org/wikipedi...retrograde.jpg http://apod.nasa.gov/apod/ap080511.html Running the cursor over the APOD image you will see Mars and the Earth move through the Gemini and Taurus field of stars in our common orbit around the Sun,there is an aid which matches the outer ring of symbols with the respective constellations in Kepler's representation,the second most important in all astronomy - http://upload.wikimedia.org/wikipedi..._signs.svg.png You can also enjoy the calendar based on homcentric Ra/Dec system which keeps everything moving in stellar circumpolar motion but the real satisfaction is watching the planets and comets move against the stationary stellar background.All it takes is a little compromise to inherit both astronomical worlds Marty but in dumping everything into right ascension,you inherit neither. |
#4
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Comet Garradd again...
On Aug 24, 8:49*pm, Marty wrote:
After seeing that it was a clear night, and the moon wasn't interfering yet, I ran out for another look at Comet Garradd. *I hadn't seen it since my last effort when it was just creeping away from Pegasus' nose, and now it was buzzing under the tip of Sagitta... *I didn't take the time to dark adapt, and while I'm not nearly as cursed by light pollution as most people, my situation hasn't gotten any better over the years. *Also, I don't think my eyes pick up dim objects quite as well as they did when a younger man was using them. *I studied the chart (http://cometchasing.skyhound.com/) carefully... * * *When I got out to look at about 10:00pm CDT, I spent a few minutes looking around at the constellations and bright "M" objects to let my eyes adapt just a bit. *Not a bad evening... *66 F, a few locusts chirping, and clear skies. *Then I swung my binocs up to Sagitta and took a look. *I found a blur in about the right place, but not EXACTLY in the right place. *I was a little confused and frustrated. *I came in and checked the chart again, and then went out and looked again. *There was the little fuzzball, but still, it wasn't quite where it should be... *Was I seeing some of the background confusion in the starclouds of the Milky Way, and missing the comet? I went back in and checked the chart again... *AH HA... *The tick marks on the chart weren't for 0 hours Universal Time, but for 13 hours on the 24th and 8 hours on the 25th... *OK, so I'm a better observer than a chart reader... *THAT'S it... *I'm a better observer than a chart reader... *That works.... Marty Thanks Marty |
#5
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Comet Garradd again...
Gerald was saying
All it takes is a little compromise to inherit both astronomical worlds Marty but in dumping everything into right ascension,you inherit neither. Well, half the time I use declination... Marty |
#6
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Comet Garradd again...
On Aug 25, 2:25*pm, Marty wrote:
Gerald was saying All it takes is a little compromise to inherit both *astronomical worlds Marty but in dumping everything into right ascension,you inherit neither. Well, half the time I use declination... * * * * * * * * * * * * * * *Marty HA! |
#7
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Comet Garradd again...
On Aug 25, 11:25*pm, Marty wrote:
Gerald was saying All it takes is a little compromise to inherit both *astronomical worlds Marty but in dumping everything into right ascension,you inherit neither. Well, half the time I use declination... * * * * * * * * * * * * * * *Marty It was already included in Ra/Dec so your attempt at a smart answer is somewhat disingenuous. There is nothing offensive about matching the motion of Mars against the field of stars known as the constellations with Kepler's Quadragesimalis using modern sequential imaging for this is the realm of astronomers from antiquity to the time of Copernicus,Kepler and Galileo.It is only when they started to observe the motion of planets and other celestial objects using stellar circumpolar motion and right ascension/declination that the great observations and interpretation of the motions of objects against the field of stars was lost. The next time you try to sound homely when you go about your Ra/Dec observing be sure to remember that none of the great astronomers looked at the constellations that way as Ra/Dec is based on timekeeping averages and accurate clocks only came into existence in the late 17th century. |
#8
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Comet Garradd again...
oriel36 wrote:
On Aug 25, 11:25 pm, Marty wrote: Gerald was saying All it takes is a little compromise to inherit both astronomical worlds Marty but in dumping everything into right ascension,you inherit neither. Well, half the time I use declination... Marty It was already included in Ra/Dec so your attempt at a smart answer is somewhat disingenuous. There is nothing offensive about matching the motion of Mars against the field of stars known as the constellations with Kepler's Quadragesimalis using modern sequential imaging for this is the realm of astronomers from antiquity to the time of Copernicus,Kepler and Galileo.It is only when they started to observe the motion of planets and other celestial objects using stellar circumpolar motion and right ascension/declination that the great observations and interpretation of the motions of objects against the field of stars was lost. The next time you try to sound homely when you go about your Ra/Dec observing be sure to remember that none of the great astronomers looked at the constellations that way as Ra/Dec is based on timekeeping averages and accurate clocks only came into existence in the late 17th century. As usual you have got everything the wrong way round. Before accurate clocks astrononomy was based on observing the sky based on the constellations and the movement or otherwise of objects against this background. RA and Dec are just a systematisation of this. It was the mean 24h day which depended on accurate clocks. You have a real talent for 180 degree misinterpretation of facts. |
#9
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Comet Garradd again...
On Aug 26, 8:01*am, wrote:
You have a real talent for 180 degree misinterpretation of facts. Au contraire. He has absolutely no talent at all. Except, perhaps, for verbiage and obfuscation. An intemperate loser going around in circles. |
#10
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Comet Garradd again...
On 25/08/2011 04:49, Marty wrote:
After seeing that it was a clear night, and the moon wasn't interfering yet, I ran out for another look at Comet Garradd. I hadn't seen it since my last effort when it was just creeping away from Pegasus' nose, and now it was buzzing under the tip of Sagitta... I didn't take the time to dark adapt, and while I'm not nearly as cursed by light pollution as most people, my situation hasn't gotten any better over the years. Also, I don't think my eyes pick up dim objects quite as well as they did when a younger man was using them. I studied the chart ( http://cometchasing.skyhound.com/ ) carefully... When I got out to look at about 10:00pm CDT, I spent a few minutes looking around at the constellations and bright "M" objects to let my eyes adapt just a bit. Not a bad evening... 66 F, a few locusts chirping, and clear skies. Then I swung my binocs up to Sagitta and took a look. I found a blur in about the right place, but not EXACTLY in the right place. I was a little confused and frustrated. I came in and checked the chart again, and then went out and looked again. There was the little fuzzball, but still, it wasn't quite where it should be... Was I seeing some of the background confusion in the starclouds of the Milky Way, and missing the comet? I went back in and checked the chart again... AH HA... The tick marks on the chart weren't for 0 hours Universal Time, but for 13 hours on the 24th and 8 hours on the 25th... OK, so I'm a better observer than a chart reader... THAT'S it... I'm a better observer than a chart reader... That works.... Marty If the skies are clear tonight (Fri Aug 26), 2009 P1 (Garradd) will be within 10 arcmins of M71 at around 22:00 UTC, so should be fairly easy to find. I've been waiting to image this all week - guess what?.. yes, raining now and not expected to stop for ~24h (of course.) -- Rob |
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