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Re: Slewing to target strangely
开云体育My Fault! ? I asked for it because I stupidly offered to help someone out.. One of the dumber things I have done in a very long time.. ? Instead I will do what I should have done right off the bat.. That is tell to defork and buy a G11.. I am quite happy someone convinced me to do it and I am sure they would be too.. ? Derek ? From:
[email protected] [mailto:[email protected]] On Behalf Of Paul Kanevsky ? |
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Re: Slewing to target strangely
开云体育Got it.. Thanks.. A lot.. ? Derek ? ? From:
[email protected] [mailto:[email protected]] On Behalf Of Russ via groups.io ? [Edited Message Follows] I loaded a zip file of the MAPUG archieve into the 'FILES' folder. |
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Re: Entering HIP Star Coordinates Using Hand Controller?
Hi all I have a new improved version of the HIP star catalog that i've loaded into the files section here - based on HIP2 and is in Gemini (.guc) format. this is 117,000+ stars - has notes section included (not very interesting but does make note of star color) - so far i've been able to load it into my hand controller and use it successfully - i fixed the quote problem so now you just enter HIP1234 unstead if?"HIP1234 loading takes about 30 minutes?to the HC These are J2000 coordinates so have J2000 checked (which it is by default) Brian On Mon, Jan 18, 2021 at 10:58 AM crocco1250 via <crocco1250=[email protected]> wrote: Derek --
Brian? Brian Valente portfolio |
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Re: Entering HIP Star Coordinates Using Hand Controller?
开云体育But.. all you will ever need is SIMBAD, as was pointed out before.. ?
? Derek ? From: [email protected]
[mailto:[email protected]] On Behalf
Of crocco1250 via groups.io
Sent: Monday, January 18, 2021 10:59 AM To: [email protected] Subject: Re: [Losmandy_users_io] Entering HIP Star Coordinates Using Hand Controller? ? Derek ? When using stellarium, I was looking for a double star system mentioned in a mag using the strueve designation. No luck. I was trying to use sinbad under android and couldn't print the results. My old link to a stellar catalog has disappeared and that catalog had a cross reference. So, when magnitudes get below a certain point, your stuck with hip as everyone uses it but the cross-references to older designations are harder to find. I was wondering if there was an on line cross reference list but, after hours spent searching, I couldn't find one. So, if you can provide some help, that's great. ? Chuck Sorry Chuck, somehow I missed this.. ? Someone mentioned Simbad / Vizier.. I use that when nothing else works.. Most planetarium programs allow you to switch catalogs.. You need some idea of where it *should* be, i.e. dimmest to brightest.. UCAC4 to HIP to SAO.. So an SAO star is much less likely to also be in the HIP catalog – roughly speaking.. Similarly, a brighter UCAC4 star might have a HIP ID.. The Brighter HIP stars would likely have an SAO number.. A limited number of stars have a single unique ID.. Roughly.. ? But my first method – besides switching catalogs in a planetarium program - of cross identification is a Google search.. It usually comes right up for something as bright as a HIP star.. ? I have an plan of creating a set of *.guc files to solve this, but I have no idea how to automate the process of creating them so it’ll take me begging my buddy to do it for me (don’t expect it anytime soon).. I already have asked some questions regarding this and if and when I get it “my way”, I’ll certainly share.. ? Derek ? From:
[email protected] [mailto:[email protected]] On Behalf Of crocco1250 via groups.io ? Derek ? I was looking for a hip designation and finding a stellar rosetta stone that gives hip, sao, hd, especially strueve and older, is a pain. I had one site that I've since lost the link to that did that. So if the HC has it but under a different system, you're SOL finding it. So, do you have such a site??? ? Chuck And of course when I looked, there is no HIP catalog, so you have to find the SAO ID.. Then my answer makes sense.. ? Derek ? From:
[email protected] [mailto: [email protected] ] On Behalf Of Jim Waters ? Using the HC how can I enter HIP star coordinates - such as HIP 27446? |
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Re: Entering HIP Star Coordinates Using Hand Controller?
开云体育That’s where Simbad / Vizier comes in.. I forget which is which, but in one you enter the ID and one of the sections it returns is “other identifiers”.. and the other you can search a given – ie user defined – distance from an RA / Dec and it will give you all targets.. which you then can cross reference by ID.. ? Still.. You should be able to Google the Struve ID and get other ID’s.. ? I don’t even own a printer.. A Pen and scratch paper and a walk to the scope works.. ? Entering “Star Catalog Cross Reference” into Google just now returns..
? See the Second entry.. ? And for double stars, #3.. etc.. ? Derek ? From:
[email protected] [mailto:[email protected]] On Behalf Of crocco1250 via groups.io ? Derek ? When using stellarium, I was looking for a double star system mentioned in a mag using the strueve designation. No luck. I was trying to use sinbad under android and couldn't print the results. My old link to a stellar catalog has disappeared and that catalog had a cross reference. So, when magnitudes get below a certain point, your stuck with hip as everyone uses it but the cross-references to older designations are harder to find. I was wondering if there was an on line cross reference list but, after hours spent searching, I couldn't find one. So, if you can provide some help, that's great. ? Chuck -----Original Message-----
From: Derek C Breit <breit_ideas@...> To: Losmandy_users <[email protected]> Sent: Mon, Jan 18, 2021 06:26 AM Subject: Re: [Losmandy_users_io] Entering HIP Star Coordinates Using Hand Controller? Sorry Chuck, somehow I missed this.. ? Someone mentioned Simbad / Vizier.. I use that when nothing else works.. Most planetarium programs allow you to switch catalogs.. You need some idea of where it *should* be, i.e. dimmest to brightest.. UCAC4 to HIP to SAO.. So an SAO star is much less likely to also be in the HIP catalog – roughly speaking.. Similarly, a brighter UCAC4 star might have a HIP ID.. The Brighter HIP stars would likely have an SAO number.. A limited number of stars have a single unique ID.. Roughly.. ? But my first method – besides switching catalogs in a planetarium program - of cross identification is a Google search.. It usually comes right up for something as bright as a HIP star.. ? I have an plan of creating a set of *.guc files to solve this, but I have no idea how to automate the process of creating them so it’ll take me begging my buddy to do it for me (don’t expect it anytime soon).. I already have asked some questions regarding this and if and when I get it “my way”, I’ll certainly share.. ? Derek ? From:
[email protected] [mailto:[email protected]] On Behalf Of crocco1250 via groups.io ? Derek ? I was looking for a hip designation and finding a stellar rosetta stone that gives hip, sao, hd, especially strueve and older, is a pain. I had one site that I've since lost the link to that did that. So if the HC has it but under a different system, you're SOL finding it. So, do you have such a site??? ? Chuck And of course when I looked, there is no HIP catalog, so you have to find the SAO ID.. Then my answer makes sense.. ? Derek ? From:
[email protected] [mailto: [email protected] ] On Behalf Of Jim Waters ? Using the HC how can I enter HIP star coordinates - such as HIP 27446? |
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Re: M78
Thanks for the positive comments everyone. ?Our challenge where I am is light pollution. ? I was just using a simple IR/UV cut filter, so the light pollution just kills the low contrast stuff. ? I might go have another go with an LP filter I have and see If I can pull out more detail. ?Then use this data for color(once I figure out how to do that, lol:-). This is by far the most challenging target I have attempted to date. ?Overall I was pleased for a first try. ?It does look pretty cool! ? I really like the relative simplicity of setup with an OSC, but I cannot help but feel I am ever so slowly being pulled into maelstrom of narrowband imaging, lol:-). ?One thing at a time, however:-). ?One thing is a certainty, the G11T will carry anything I put on it:-)?
Cheers! JMD |
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Re: Entering HIP Star Coordinates Using Hand Controller?
Derek
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Show quoted text
When using stellarium, I was looking for a double star system mentioned in a mag using the strueve designation. No luck. I was trying to use sinbad under android and couldn't print the results. My old link to a stellar catalog has disappeared and that catalog had a cross reference. So, when magnitudes get below a certain point, your stuck with hip as everyone uses it but the cross-references to older designations are harder to find. I was wondering if there was an on line cross reference list but, after hours spent searching, I couldn't find one. So, if you can provide some help, that's great. Chuck -----Original Message-----
From: Derek C Breit <breit_ideas@...> To: Losmandy_users <[email protected]> Sent: Mon, Jan 18, 2021 06:26 AM Subject: Re: [Losmandy_users_io] Entering HIP Star Coordinates Using Hand Controller? Sorry Chuck, somehow I missed this.. ? Someone mentioned Simbad / Vizier.. I use that when nothing else works.. Most planetarium programs allow you to switch catalogs.. You need some idea of where it *should* be, i.e. dimmest to brightest.. UCAC4 to HIP to SAO.. So an SAO star is much less likely to also be in the HIP catalog – roughly speaking.. Similarly, a brighter UCAC4 star might have a HIP ID.. The Brighter HIP stars would likely have an SAO number.. A limited number of stars have a single unique ID.. Roughly.. ? But my first method – besides switching catalogs in a planetarium program - of cross identification is a Google search.. It usually comes right up for something as bright as a HIP star.. ? I have an plan of creating a set of *.guc files to solve this, but I have no idea how to automate the process of creating them so it’ll take me begging my buddy to do it for me (don’t expect it anytime soon).. I already have asked some questions regarding this and if and when I get it “my way”, I’ll certainly share.. ? Derek ? From:
[email protected] [mailto:[email protected]] On Behalf Of crocco1250 via groups.io ? Derek ? I was looking for a hip designation and finding a stellar rosetta stone that gives hip, sao, hd, especially strueve and older, is a pain. I had one site that I've since lost the link to that did that. So if the HC has it but under a different system, you're SOL finding it. So, do you have such a site??? ? Chuck And of course when I looked, there is no HIP catalog, so you have to find the SAO ID.. Then my answer makes sense.. ? Derek ? From:
[email protected] [mailto: [email protected] ] On Behalf Of Jim Waters ? Using the HC how can I enter HIP star coordinates - such as HIP 27446? |
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Re: M78
>>>
I can't really get the Blue nebulae.? ?I feel for you Sonny Blue and OIII barely register?here in san fernando valley. Targets like iris nebula are out of the question for me :( I think the air pollution here cuts blue signal far more than usual On Mon, Jan 18, 2021 at 8:02 AM Sonny Edmonds <pedmondsjr@...> wrote: Beautiful! --
Brian? Brian Valente portfolio |
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Re: Entering HIP Star Coordinates Using Hand Controller?
开云体育Sorry Chuck, somehow I missed this.. ? Someone mentioned Simbad / Vizier.. I use that when nothing else works.. Most planetarium programs allow you to switch catalogs.. You need some idea of where it *should* be, i.e. dimmest to brightest.. UCAC4 to HIP to SAO.. So an SAO star is much less likely to also be in the HIP catalog – roughly speaking.. Similarly, a brighter UCAC4 star might have a HIP ID.. The Brighter HIP stars would likely have an SAO number.. A limited number of stars have a single unique ID.. Roughly.. ? But my first method – besides switching catalogs in a planetarium program - of cross identification is a Google search.. It usually comes right up for something as bright as a HIP star.. ? I have an plan of creating a set of *.guc files to solve this, but I have no idea how to automate the process of creating them so it’ll take me begging my buddy to do it for me (don’t expect it anytime soon).. I already have asked some questions regarding this and if and when I get it “my way”, I’ll certainly share.. ? Derek ? From:
[email protected] [mailto:[email protected]] On Behalf Of crocco1250 via groups.io ? Derek ? I was looking for a hip designation and finding a stellar rosetta stone that gives hip, sao, hd, especially strueve and older, is a pain. I had one site that I've since lost the link to that did that. So if the HC has it but under a different system, you're SOL finding it. So, do you have such a site??? ? Chuck -----Original Message-----
From: Derek C Breit <breit_ideas@...> To: Losmandy_users <[email protected]> Sent: Sat, Jan 16, 2021 03:28 PM Subject: Re: [Losmandy_users_io] Entering HIP Star Coordinates Using Hand Controller? And of course when I looked, there is no HIP catalog, so you have to find the SAO ID.. Then my answer makes sense.. ? Derek ? From:
[email protected] [mailto: [email protected] ] On Behalf Of Jim Waters ? Using the HC how can I enter HIP star coordinates - such as HIP 27446? |
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Re: M78
开云体育NICE! ? Derek ? From:
[email protected] [mailto:[email protected]] On Behalf Of deitzelj via groups.io ? /g/Losmandy_users/photo/254767/6?p=Name,,,20,1,0,0 |
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Re: Clean and Lube G11 Gears
The bearings in the worm block are R4ZZ bearings. They will usually be sealed and filled for life with grease at the factory. I wouldn’t bother trying to relube these, it is far easier to just replace them, if you need to. I’ve recently replaced my old stock worm for a high precision worm, and it is very easy to remove the bearings using a heat gun (once you have the worm blocks off the mount). Companies like Boca Bearings in the US sell these for about $10 each (and those are ABEC 7 good quality bearings).
I also think you only need to grease the worm, provided you then rotate the worm (by hand) so it goes all the way around the gear wheel. I think if you put grease on the gear wheel too there will be far too much grease around, which could leak into the clutches. The oil film thickness between the gear contacts will be 5 microns or less, so if you coat the worm with 1 mm of grease all the way around this will be plenty. When you reassemble make sure everything is aligned, and before you take the worm off use a feeler gauge to check the gap between the worm blocks and the cover, so you can get the same gap when you put it back together. The Oldham couplers ideally need to be quite tight. Michael Herman is the expert on here about all this. |
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Re: Clean and Lube G11 Gears
Russ,
If you are having motor lag issues, perhaps you may want to obtain further feedback before a rebuild. Perhaps something is getting snagged, there is a power issue, a motor problem or another situation that could cause a warning. I have the Gemini 2 and I am not all sure of the what the Gem 1 warnings could be from. But if you are intent on a rebuild, I can tell you this is a drawn out process with no quick wipe and re-grease. I just did a total disassembly and relubrication toward the end of 2020. There are numerous lubrication points within the mount besides just the worm and ring gear. There are bearings between the worm and blocks, the ring gear and internal spindle, and of course under the clutch locks. The ring gear cover does come off, as in included pics. I cleaned all the bearings and contact surfaces with a combination of gasoline, ethanol, and Brakleen, and then relubricated with teflon based Superlube. Replacing and retuning the worms was the most difficult part and they must be adjusted delicately. The worm and ring tension is critical. Too tight and you stall. Too loose and you have backlash. The Losmandy videos on YouTube show some of what is involved in the tweaking. But Losmandy doesn't recommend doing this at home for good reason. You need to be mechanically inclined and have lots of time and patience.? If you really want to go that route, just warning you what may be ahead. Or if you are sure it's the worm and ring contact, perhaps a little dab of grease might get you going again. Regards,? John |
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Re: Clean and Lube G11 Gears
开云体育AND.. I would suggest that removing the axis from the mount and making sure those cylindrical bearings spin freely, and just adding a little grease to the worms – drive the mount round and round to spread onto the ring gears – and adjusting the worms would solve your “new” issues.. Since it has been 13 years anyway.. ? That would allow you to do a complete job when you wish, and not “right now”. ? As always, just trying to help.. ? Derek ? From: [email protected]
[mailto:[email protected]] On Behalf
Of Russell Milton
Sent: Sunday, January 17, 2021 6:02 PM To: [email protected] Subject: [Losmandy_users_io] Clean and Lube G11 Gears ? Hello to All, |
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Re: Clean and Lube G11 Gears
开云体育If this was me, I would do none of that.. Take the scope off.. Remove the worm and you can just rotate the axis to clean the ring gear a little at a time.. Relube, reassemble, and adjust, which you will have to do anyway.. But that’s just me.. ? I do know that most of those fasteners you mentioned do not have to come.. Pull the shaft out of the mount and it’ll be much clearer.. (if you wish to do it that way..) ? And obviously wait for better responses from those who *know* how to do it the way you wish to.. :-)) ? Derek ? From: [email protected]
[mailto:[email protected]] On Behalf
Of Russell Milton
Sent: Sunday, January 17, 2021 6:02 PM To: [email protected] Subject: [Losmandy_users_io] Clean and Lube G11 Gears ? Hello to All, |
Paul Kanevsky