![]() |
|
|
Thread Tools | Display Modes |
|
#1
|
|||
|
|||
![]()
In a few weeks, I will have another birthday past my fiftieth.
The effects of aging are beginning to affect my habits and choices in this hobby. And with the not-so-new news that the baby-boomers will soon start to retire (if they can afford to do so), a number of questions arise for both the experienced amateur, and those who suddenly find time and interest in this activity. Anyone interested is invited to join in this thread. As an example, I shall start with a few major points. TWO TELESCOPES 1. A portable 80-100mm short tube refractor - for wide field, high image brightness, low magnification views. Great for sky sweeping, large patches of the milky way, open clusters, large nebulae, and maybe casual terrestrial/ nature viewing. It should be on a light, but stable alt- azimuth mount. 2. A fixed location large scope. - My preference would be for a 10" to 12" dobsonian, f/6 or greater. I never tire of the moon, planets, and small, bright nebula. An 8" to 14" SCT or 7" Mak might also work, if one can afford them. The unit should be on a fixed pier mount or roll-out casters. Lugging a heavy scope is not practical or desirable as one gets older. EYEPIECES Most people's eyesight and visual acuity deteriorate with age. Eyeglasses and contacts help, but contacts are a lot of bother for some people. Also, maximum pupil openning decreases, raising the minimum magnification for full illumination. Ways of dealing with these problems include: - long eye relief eyepieces - Lanthanums and similar - barlow plus long focal length eyepieces - long focal lengths for both telescope and eyepiece The good news is that with the loss of some visual acuity, there is a corresponding loss of need for premium quality eyepieces. More magnification may be needed for the same detail to be apparent to an older person, and dimmer image will also result. General purpose Plossls will satisfy a greater variety of situations. FINDERS and STAR DIAGONALS Right angle, correct orientation (no reversal of just one axis.) As one gets older, agility wanes. The contortionist peering through a straight or reflex finder to something nearly overhead is just not possible any more. Right angle viewing is required. To minimize the confusion brought about by a single (or odd number of) reflection(s), star diagonals and right angle finders should provide a correct orientation view. If one axis is flipped, then the other should be as well. VIEWING SUPPORT A chair or ladder is often instrumental in allowing one to obtain and hold a stable eye position while viewing. Such a thing should be considered an essential part of the observer's equipment. COMMENTS Feel free to add your own views, or challenge those already presented. Cheers, larry g. -- Calling Austin HOME since 1982! |
#2
|
|||
|
|||
![]()
Well, I'm within about 3 years of reaching the 60 mark, but because of
diabiltys I've been out of the work force since 93. I now have 3 major scopes, all of them Dobs, a Stargazer Steve, My home made Babylon 8, and now the 10in Galactica. As I do gardening and other things, I've been able to at lest stay active, that and the help from the asprin I take keeps me going. Being 6ft tall I've still got a good amount of power in my legs and arms so for right now at lest, I'm able to move the scopes just fine. As I'm near sighted, most of my viewing is done without the glasses I have to ware for driving. While it's not easy and I do sidewalk astronomy for as long as I can. -- The Lone Sidewalk Astronomer of Rosamond Telescope Buyers FAQ http://home.inreach.com/starlord Sidewalk Astronomy www.sidewalkastronomy.info Astronomy Net Online Gift Shop http://www.cafepress.com/astronomy_net In Garden Online Gift Shop http://www.cafepress.com/ingarden Blast Off Online Gift Shop http://www.cafepress.com/starlords "LarryG" wrote in message news ![]() In a few weeks, I will have another birthday past my fiftieth. The effects of aging are beginning to affect my habits and choices in this hobby. And with the not-so-new news that the baby-boomers will soon start to retire (if they can afford to do so), a number of questions arise for both the experienced amateur, and those who suddenly find time and interest in this activity. |
#3
|
|||
|
|||
![]()
I'm inexorably tending toward your position here Larry :-) I too need a chair, I only use 3 good
EPs regularly, and I'm looking more and more at buying a light, compact 4" refractor. The 10" Dob seems heavier each time now. Do you also find yourself looking for a suitable apprentice to take on the "big 'scope" one day ? "I remember the great nail shortage of '82 you know......" :-)) John Carruthers http://mysite.freeserve.com/jc_atm/ "LarryG" wrote in message news ![]() In a few weeks, I will have another birthday past my fiftieth. The effects of aging are beginning to affect my habits and choices in this hobby. And with the not-so-new news that the baby-boomers will soon start to retire (if they can afford to do so), a number of questions arise for both the experienced amateur, and those who suddenly find time and interest in this activity. Anyone interested is invited to join in this thread. As an example, I shall start with a few major points. TWO TELESCOPES 1. A portable 80-100mm short tube refractor - for wide field, high image brightness, low magnification views. Great for sky sweeping, large patches of the milky way, open clusters, large nebulae, and maybe casual terrestrial/ nature viewing. It should be on a light, but stable alt- azimuth mount. 2. A fixed location large scope. - My preference would be for a 10" to 12" dobsonian, f/6 or greater. I never tire of the moon, planets, and small, bright nebula. An 8" to 14" SCT or 7" Mak might also work, if one can afford them. The unit should be on a fixed pier mount or roll-out casters. Lugging a heavy scope is not practical or desirable as one gets older. EYEPIECES Most people's eyesight and visual acuity deteriorate with age. Eyeglasses and contacts help, but contacts are a lot of bother for some people. Also, maximum pupil openning decreases, raising the minimum magnification for full illumination. Ways of dealing with these problems include: - long eye relief eyepieces - Lanthanums and similar - barlow plus long focal length eyepieces - long focal lengths for both telescope and eyepiece The good news is that with the loss of some visual acuity, there is a corresponding loss of need for premium quality eyepieces. More magnification may be needed for the same detail to be apparent to an older person, and dimmer image will also result. General purpose Plossls will satisfy a greater variety of situations. FINDERS and STAR DIAGONALS Right angle, correct orientation (no reversal of just one axis.) As one gets older, agility wanes. The contortionist peering through a straight or reflex finder to something nearly overhead is just not possible any more. Right angle viewing is required. To minimize the confusion brought about by a single (or odd number of) reflection(s), star diagonals and right angle finders should provide a correct orientation view. If one axis is flipped, then the other should be as well. VIEWING SUPPORT A chair or ladder is often instrumental in allowing one to obtain and hold a stable eye position while viewing. Such a thing should be considered an essential part of the observer's equipment. COMMENTS Feel free to add your own views, or challenge those already presented. Cheers, larry g. -- Calling Austin HOME since 1982! |
#4
|
|||
|
|||
![]() "LarryG" wrote in message news ![]() In a few weeks, I will have another birthday past my fiftieth. The effects of aging are beginning to affect my habits and choices in this hobby. And with the not-so-new news that the baby-boomers will soon start to retire (if they can afford to do so), a number of questions arise for both the experienced amateur, and those who suddenly find time and interest in this activity. Anyone interested is invited to join in this thread. As an example, I shall start with a few major points. TWO TELESCOPES 1. A portable 80-100mm short tube refractor - for wide field, high image brightness, low magnification views. Great for sky sweeping, large patches of the milky way, open clusters, large nebulae, and maybe casual terrestrial/ nature viewing. It should be on a light, but stable alt- azimuth mount. 2. A fixed location large scope. - My preference would be for a 10" to 12" dobsonian, f/6 or greater. I never tire of the moon, planets, and small, bright nebula. An 8" to 14" SCT or 7" Mak might also work, if one can afford them. The unit should be on a fixed pier mount or roll-out casters. Lugging a heavy scope is not practical or desirable as one gets older. EYEPIECES Most people's eyesight and visual acuity deteriorate with age. Eyeglasses and contacts help, but contacts are a lot of bother for some people. Also, maximum pupil openning decreases, raising the minimum magnification for full illumination. Ways of dealing with these problems include: - long eye relief eyepieces - Lanthanums and similar - barlow plus long focal length eyepieces - long focal lengths for both telescope and eyepiece The good news is that with the loss of some visual acuity, there is a corresponding loss of need for premium quality eyepieces. More magnification may be needed for the same detail to be apparent to an older person, and dimmer image will also result. General purpose Plossls will satisfy a greater variety of situations. FINDERS and STAR DIAGONALS Right angle, correct orientation (no reversal of just one axis.) As one gets older, agility wanes. The contortionist peering through a straight or reflex finder to something nearly overhead is just not possible any more. Right angle viewing is required. To minimize the confusion brought about by a single (or odd number of) reflection(s), star diagonals and right angle finders should provide a correct orientation view. If one axis is flipped, then the other should be as well. VIEWING SUPPORT A chair or ladder is often instrumental in allowing one to obtain and hold a stable eye position while viewing. Such a thing should be considered an essential part of the observer's equipment. COMMENTS Feel free to add your own views, or challenge those already presented. Cheers, larry g. -- It occurs to me, Larry, that the above, expanded a bit, might be a suitable article for a publication like Night Sky. |
#5
|
|||
|
|||
![]()
LarryG said the following on 2/25/2006 1:03 AM:
TWO TELESCOPES I'm there - Although I have a short tube 80, I find that lately I use it little (compared to others). I also have an 8" f6 Dob that is my grab and go scope. Whenever possible, it's my 14.5" Dob, though. Of course, due to weather, schedule and whatnot, but primarily to being surrounded by neighbors who for the most part are (apparently) genuinely possessed with an irrational fear of the dark, I don't get to observe much anymore. At home, I'm surrounded by porch lights and the like that stay on all night. Since last October, I've had my 8" out on my patio maybe 3 times, only to bring it back in when a light turns on. My large Dob has been out once, but the site I was using turned out to be WAAAAYY too bright. I'm looking forward to another star party so I can observe again. All this from a "small" town, no less... 2. A fixed location large scope. Fixed as in New Mexico might be nice, but that's a long way to drive to work (to/from Louisiana). Since I've become increasingly disinterested in planetary observing, the virtues of a more or less permanently mounted larger scope are becoming more and more attractive. I feel the call of Terzan, Djorgovski, Markarian and buddies... :-) EYEPIECES Most people's eyesight and visual acuity deteriorate with age. Eyeglasses and contacts help, but contacts are a lot of bother for some people. Also, maximum pupil Well, astigmatism is my primary visual defect, so I just have to deal with it. FINDERS and STAR DIAGONALS Right angle, correct orientation (no reversal of just one axis.) As one gets older, agility wanes. The contortionist peering through a straight or reflex finder to something nearly overhead is just not possible any more. Right angle viewing is required. Absolutely, but coupled with a 1x sight of some kind. VIEWING SUPPORT A chair or ladder is often instrumental in allowing one to obtain and hold a stable eye position while viewing. Such a thing should be considered an essential part of the observer's equipment. I'm looking at a Catsperch Pro chair I finished a month back and have yet to have a chance to use at the eyepiece. -- ---- Len Philpot -------- ------- ------------- http://members.cox.net/lenphilpot/ |
#6
|
|||
|
|||
![]() Len Philpot wrote: Of course, due to weather, schedule and whatnot, but primarily to being surrounded by neighbors who for the most part are (apparently) genuinely possessed with an irrational fear of the dark, I don't get to observe much anymore. At home, I'm surrounded by porch lights and the like that stay on all night. Since last October, I've had my 8" out on my patio maybe 3 times, only to bring it back in when a light turns on. My large Dob has been out once, but the site I was using turned out to be WAAAAYY too bright. I'm looking forward to another star party so I can observe again. All this from a "small" town, no less... Len, Len, Len... Why let this stop you? I've probably seen a lot more from the center of Mobile than you have from your much better location. The secret? Shield the scope and yourself from _ambient_ light...all those nearby porchlights and lighted windows. An observatory or just some portable light shields and you'll be back in deep sky heaven. Peace, Rod Mollise Author of: _Choosing and Using an SCT_, and _The Urban Astronomers's Guide_. _http://members.aol.com/rmollise/index.html_ (http://members.aol.com/rmollise/index.html) |
#7
|
|||
|
|||
![]()
RMOLLISE wrote:
Len, Len, Len... Why let this stop you? I've probably seen a lot more from the center of Mobile than you have from your much better location. The secret? Shield the scope and yourself from _ambient_ light...all those nearby porchlights and lighted windows. An observatory or just some portable light shields and you'll be back in deep sky heaven. Peace, Rod Mollise Hi Took me forever to figure this one out. If/when I shield myself from ambient lighting, I can see DSO's down to mag 9.5 or so as long as they are high surface brightness objects. And this is from mag 3.5 skies !! Strange, recently we have been getting mag 4.5 to mag 5 skies, which is not normal for being right next to Wash DC....... -- AM http://sctuser.home.comcast.net CentOS 4.2 KDE 3.3 |
#8
|
|||
|
|||
![]()
RMOLLISE said the following on 2/25/2006 9:24 AM:
Why let this stop you? I've probably seen a lot more from the center of Mobile than you have from your much better location. The secret? Shield the scope and yourself from _ambient_ light...all those nearby porchlights and lighted windows. An observatory or just some portable light shields and you'll be back in deep sky heaven. I know, I know... :-) True - I've put up tarps to block the light and moved into a tiny nook of my patio between the house and storage building, but then I only have about a 40 deg patch of sky directly overhead, and it's over the (heat emitting) roof. Even then, I can't block all the light. Pineville, LA (where I live) is only about 15,000, but it's next to a city of 50,000 and a metropolitan area in general of about 160,000. Not exactly NYC but still light-emitting nonetheless, to say the least. As much as anything, I guess I've developed a habit of looking at return vs. effort, and it's pretty easy to decide it's not worth it when I'm already tired from work, have other things to do, etc., etc. At star parties, I'll go hours and hours looking for faint fuzzies, but here at home they're just not really visible. Sure, there are Messiers and NGCs, etc., but anything past about 12.5m gets pretty doggone dim from my backyard. Over the past few TSPs, I've gotten very intrigued with Larry Mitchell's lists and the kinds of things they feature. Many are not even visible in my scopes, but it's fun to try nonetheless. I guess it's kind of like being a race car driver and realizing your car is governored down to only reach X speed, no matter how hard you push the gas pedal... You start "pinin' for the fjords" (can you tell I watched MP last Wednesday on PBS?) As everyone knows, it's very disheartening to spend time setting up the scope, drift aligning the platform, etc., etc., only to have some yahoo turn on his porch light and leave it on past midnight, night after night. The way my yard is situated, I'm affected by any of 8 to 10 sets of lights depending on where I setup and where I look. At least I'm in the good company of thousands of other observers who face the same thing. This year/season seems to have been one of the cloudiest/rainiest I can recall in a while. Not always rain, but LOTS of clouds where I live. I was looking at some stats on the web and since the end of Oct, /well/ over half of the days have been cloudy and/or raining. Add to that moon phase, oncall schedules and the all the rest of those things that go to make up a life and, well ... :-) At any rate, that's why I'm looking forward to TSP so much, and even to the Kisatchie Star Party next weekend (although the weather isn't encouraging at all so far for KSP). Of course, there's one upside (I guess) to all this cloudy weather - When it /does/ clear, I'm less likely to be dissuaded from observing by local lights! -- ---- Len Philpot -------- ------- ------------- http://members.cox.net/lenphilpot/ |
#9
|
|||
|
|||
![]() "Len Philpot" wrote in message news:ml%Lf.172802$WH.134009@dukeread01... encouraging at all so far for KSP). Of course, there's one upside (I guess) to all this cloudy weather - When it /does/ clear, I'm less likely to be dissuaded from observing by local lights! Ain't that the truth. My local LM conditions aren't dismal, but the cloudy nights have been brutal, the seeing has been terrible, and the clear nights are accompanied by the moon more often than not. High power and dim fuzzies are sort of out of the question visually from my yard. I finally have taken my chances though (thanks AM) and permanenty set the G-11 outside and got it polar aligned so that I can get out there on a moments notice and do some imaging. I've also now got the grab and go working nicely for low power "surveys" of the faithfully bright M objects. For the first time, I feel a (successsful) Messier Marathon coming on, if I can get a clear, moonless night next month. I was able to draw in NGC3189 and 3193 with the 6" F5, and M79 low on the horizon, so I'm hopeful I can manage the entire M list. (Btw, I would have no qualms about taking "only" a 6" scope to a star party. Heck, I've taken just binoculars in the past.) |
#10
|
|||
|
|||
![]()
Stephen Paul wrote:
I finally have taken my chances though (thanks AM) and permanenty set the G-11 outside and got it polar aligned so that I can get out there on a moments notice Hi ![]() Mine has had to endure two heavy rains, and two snowfalls within the past month outside. I put a towel over the EQ head, a piece of at least 1 mil plastic over that, and the a military poncho, which interestingly enough, the hood part for your head fit's perfectly over the saddle. Also, on my C 8 I got a waterproof bag to go over the wedge, at some point I'm getting another to put over the G 11 top, for added protection. I do always take everything off as soon as the sun is out in daytime, I never leave it completely covered for long periods of time. And something else I found out by accident. Those emergency space blankets really do work for reflecting light off a covered telescope in the daytime, even in the hot summer ! I havnt done a measurement, but the telescope under one of these was noticeably cooler than the surrounding air on a 100F day. They will deteriorate (ie; fall apart) under continued exposure to the sun. Which BTW almost all thin plastic that I use to cover the mount. I replace it on a monthly basis. -- AM http://sctuser.home.comcast.net CentOS 4.2 KDE 3.3 |
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Asteroids, Orbits, and the Amateur Astronomer | yinkelyankel | Misc | 10 | May 6th 04 10:40 AM |
FYI: Closeout on "The Amateur Astronomer" | Jim Cook | Amateur Astronomy | 10 | April 4th 04 02:33 AM |
The Seeming Demise of the Amateur Astronomer | Greg Dortmond | UK Astronomy | 9 | December 29th 03 11:21 PM |
The shrinking role of the Amateur Astronomer | Bernie | UK Astronomy | 11 | November 3rd 03 03:51 PM |
Amateur astronomer locates powerful stellar explosion before thepros (Forwarded) | Andrew Yee | Astronomy Misc | 0 | August 12th 03 10:16 PM |