Re: Barnard 10 Area Wide Field - an unguided image with the Mach2
Chris White
Oh man Rolando... how do you come up with these things? Lol...
Dean, Excellent image! Love the dust! You know I'm a suckered for it. I gotta see this on a bigger screen. Really cool scene. For the stars, try cranking up the saturation on the stars only image before adding them back in. |
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Re: Barnard 10 Area Wide Field - an unguided image with the Mach2
Dean, been out of pocket all day, just got to this. LOVE how you've handled this! I am still trying to figure out my own workflow for dark nebulae. Very strange beasts to process I find. Stuart Heggie On Tue, 29 Nov 2022 at 18:58, Dean Jacobsen <deanjacobsen@...> wrote: On Tue, Nov 29, 2022 at 03:51 PM, midmoastro wrote: |
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Re: Barnard 10 Area Wide Field - an unguided image with the Mach2
On Tue, Nov 29, 2022 at 03:51 PM, midmoastro wrote:
Wow, super work Dean. Very beautiful, very well processed.Thank you everyone for the kind words. I had a lot of trouble with this data and the only way I was able to bring out all of that faint dust was to get StarXTerminator and use it to separate out the stars and just work on the dust separately and then put the stars back in later. I know... people have been using StarXTerminator and Starnet++ to do this for a while but what can I say? :-) Anyway, now I have a new tool in the tool box. -- Dean Jacobsen Astrobin Image Gallery - https://www.astrobin.com/users/deanjacobsen/ |
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Re: Barnard 10 Area Wide Field - an unguided image with the Mach2
midmoastro
Wow, super work Dean. Very beautiful, very well processed.
Todd |
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Re: Barnard 10 Area Wide Field - an unguided image with the Mach2
Pretty cool Dean.
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Re: Barnard 10 Area Wide Field - an unguided image with the Mach2
I like that a lot, Dean! Plenty of interesting dust detail. Karen AP
From: main@ap-gto.groups.io <main@ap-gto.groups.io>
On Behalf Of Dean Jacobsen
Sent: Tuesday, November 29, 2022 12:39 PM To: main@ap-gto.groups.io Subject: [ap-gto] Barnard 10 Area Wide Field - an unguided image with the Mach2
Hi All, -- Karen Christen Astro-Physics |
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Re: Barnard 10 Area Wide Field - an unguided image with the Mach2
beautifully rendered Dean, very 3D and sublime details. It's hard to resist the urge to overdo the contrast in the dust, i think you did it nicely On Tue, Nov 29, 2022 at 10:38 AM Dean Jacobsen <deanjacobsen@...> wrote: Hi All, --
Brian Brian Valente astro portfolio https://www.brianvalentephotography.com/astrophotography/ portfolio brianvalentephotography.com |
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Re: Barnard 10 Area Wide Field - an unguided image with the Mach2
christian viladrich
Beautifull ! Christian Le 29/11/2022 à 18:38, Dean Jacobsen a
écrit :
Hi All, |
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Re: Barnard 10 Area Wide Field - an unguided image with the Mach2
It sort of does look like a Woolly Mammoth. :-)
-- Dean Jacobsen Astrobin Image Gallery - https://www.astrobin.com/users/deanjacobsen/ |
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Re: Barnard 10 Area Wide Field - an unguided image with the Mach2
Roland Christen
Anyway, here is my version of the Barnard 10 area: A Woolly Mammoth after being extruded thru the fan blades of a 747.
![]() Rolando
-----Original Message-----
From: Dean Jacobsen <deanjacobsen@...> To: main@ap-gto.groups.io Sent: Tue, Nov 29, 2022 12:38 pm Subject: [ap-gto] Barnard 10 Area Wide Field - an unguided image with the Mach2 Hi All,
This latest image was from last weeks session. I have been trying to figure out how to process it for about a week or so. My imspiration was fellow group member Andy Ermolli's image of the same field. This is a link to Andy's image: https://www.flickr.com/photos/andyinsea/52512707930/ I finally purchased Russell Croman's StarXTerminator, installed it in PixInsight and I was able to highly process the starless nebula portion [also de-niosed with NoiseXTerminator - perhaps too much] and then add the stars back in. Not much color in the stars though. Perhaps an artifact of my processing or the fact that I used unity gain [gain 158] on the ASI2400MC this time. I may go back to gain 0 as Andy's image was taken with the same camera at gain 0 so it doesn't appear that I would be losing any faint nebula at that gain setting. Anyway, here is my version of the Barnard 10 area: https://www.astrobin.com/full/9e912l/0/ Details: - Mach2 unguided with 180 sec. exposures - FSQ-106 at f/3.6 with the 0.72x 645 reducer - ZWO ASI2400MC Pro OSC camera - gain 158, temp -10 C -- Dean Jacobsen Astrobin Image Gallery - https://www.astrobin.com/users/deanjacobsen/ -- Roland Christen Astro-Physics |
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Re: Ap1100 lost directions
Roland Christen
The clutches on our 1100/1600 mounts act as variable positioning devices for the scope. It's the same kind of action as taking your scope and mounting it sideways or flipping it 180 degrees in the rings so it points at the ground. The mount itself still points to the north pole (in the case of Park3), but the scope is now pointing completely opposite or at right angles to where the mount is pointing. So, in these cases is the mount lost or is the scope lost?
In the case where the clutches are never loosened or the scope is not re-oriented, such as in a remote setup, you can get the mount and scope lost by doing an errant recal or sync on the wrong target. For instance, if your scope is pointed to a star in the east and you then do a sync or recal on a star in the opposite direction in the West, the mount will happily shift both RA and DEC coordinates by 90 degrees and assume that what you did was correct. At that point all subsequent slews will be in error and both the scope and the mount are "lost".
In both instances above, whether the 1100/1600 mount has encoders or not makes no difference. For a permanent 1100/1600 setup, if the mount is set with clutches tight and never loosened, APCC has a Homing button that sends the mount to a pre-determined home position (Park 3 being the most ideal). Sending the mount "Home" in APCC allows the mount to re-orient itself to a known position from which you can then re-start the mount. Simply set startup to "Resume From Park3" (assuming Park 3 is your Home position). If for some reason you have chosen a random position for your "Home" in APCC, then re-orienting the mount is not that simple.
The exception is the Mach2 mount which has built-in
shaft encoders that pick up rotation of the axes when the clutches
are loosened. In that mount you can also always send the mount Home
which then automatically recalibrates the position of the scope after an
errant sync or recal. No power cycle or re-start is needed to re-orient the mount after an errant sync or recal.
Rolando
-----Original Message-----
From: Arvind <base16@...> To: main@ap-gto.groups.io Sent: Tue, Nov 29, 2022 11:46 am Subject: Re: [ap-gto] Ap1100 lost directions Followup Q on Home usage.
The manual makes it very clear that if one were to loosen the clutches, then we need to re-configure the Home position. Do you know if this (the bolded part) is strictly required if the goal is to help recover a lost mount? Of course, this wouldn't work if I loosened the clutches and rotated the Dec plate 90 degrees (or RA, for that matter).
For a more common case of, say, less than a few degrees or so of movement on either axis with the clutches loose, can the once-configured Home position be re-used to establish a rough park position? One can perform a Sync (not ReCal) afterward to align with the celestial coordinates.
Note Tarun's mount is non-AE, so in case there's a difference, I am curious to know if AE mounts behave differently in this regard. I was about to post a question regarding this for my AE mount separately but given we have this thread on this topic already, I'll post here in this thread if that's ok.
Thanks.
On Tue, Nov 29, 2022 at 9:17 AM Howard Hedlund <howard@...> wrote:
Oops, my bad! I missed the remote part. Mike's suggestion will work just fine then. The intermediate park is needed to reset the internal limits to allow the mount to get into the position you desire - Park 3 - using the direction buttons. -- Roland Christen Astro-Physics |
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Barnard 10 Area Wide Field - an unguided image with the Mach2
Hi All,
This latest image was from last weeks session. I have been trying to figure out how to process it for about a week or so. My imspiration was fellow group member Andy Ermolli's image of the same field. This is a link to Andy's image: https://www.flickr.com/photos/andyinsea/52512707930/ I finally purchased Russell Croman's StarXTerminator, installed it in PixInsight and I was able to highly process the starless nebula portion [also de-niosed with NoiseXTerminator - perhaps too much] and then add the stars back in. Not much color in the stars though. Perhaps an artifact of my processing or the fact that I used unity gain [gain 158] on the ASI2400MC this time. I may go back to gain 0 as Andy's image was taken with the same camera at gain 0 so it doesn't appear that I would be losing any faint nebula at that gain setting. Anyway, here is my version of the Barnard 10 area: https://www.astrobin.com/full/9e912l/0/ Details: - Mach2 unguided with 180 sec. exposures - FSQ-106 at f/3.6 with the 0.72x 645 reducer - ZWO ASI2400MC Pro OSC camera - gain 158, temp -10 C -- Dean Jacobsen Astrobin Image Gallery - https://www.astrobin.com/users/deanjacobsen/ |
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Re: Ap1100 lost directions
ap@CaptivePhotons.com
On Tue, Nov 29, 2022 at 01:09 PM, Brian Valente wrote:
>>>. Do you know if this (the bolded part) is strictly required if the goal is to help recover a lost mount? If I'm not mistaken, the home position setting determines the encoder based reference that is used on the AE tab for RA limits and DEC limits. So if you choose to use those, notably to limit how far into a counterweight up position you can go, being off a bit on the home position may cause you to hit the limit slightly in the wrong place, e.g. stopping too early before a meridian flip. At least I ended up there once, "drifting" a bit after some clutch-free movement and resetting the unpark position properly, that the encoders were "off" and suddenly I couldn't track up to the meridian. Reset home, all was well. So ... it depends. Being set right eliminates one thing that can go wrong. Linwood |
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Re: Ap1100 lost directions
Arvind
On Tue, Nov 29, 2022 at 10:09 AM Brian Valente <bvalente@...> wrote:
Thanks, Brian.
Got onto the hobby too late to know I should have added myself to the Mach2 list earlier :-) I now have the 1100AE. |
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Re: Ap1100 lost directions
>>>. Do you know if this (the bolded part) is strictly required if the goal is to help recover a lost mount? "strictly"? if it's a few degrees probably not. But more generally it's a good habit that if you are fiddling with the clutches you should re-configure Home. >>>I am curious to know if AE mounts behave differently in this regard. You have a Mach 2, correct? It doesn't need to home: Mach 2s know their position in space at all times, regardless of repositioning via the clutches. On Tue, Nov 29, 2022 at 9:46 AM Arvind <base16@...> wrote:
--
Brian Brian Valente astro portfolio https://www.brianvalentephotography.com/astrophotography/ portfolio brianvalentephotography.com |
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Re: Ap1100 lost directions
Arvind
Followup Q on Home usage. The manual makes it very clear that if one were to loosen the clutches, then we need to re-configure the Home position. Do you know if this (the bolded part) is strictly required if the goal is to help recover a lost mount? Of course, this wouldn't work if I loosened the clutches and rotated the Dec plate 90 degrees (or RA, for that matter). For a more common case of, say, less than a few degrees or so of movement on either axis with the clutches loose, can the once-configured Home position be re-used to establish a rough park position? One can perform a Sync (not ReCal) afterward to align with the celestial coordinates. Note Tarun's mount is non-AE, so in case there's a difference, I am curious to know if AE mounts behave differently in this regard. I was about to post a question regarding this for my AE mount separately but given we have this thread on this topic already, I'll post here in this thread if that's ok. Thanks. On Tue, Nov 29, 2022 at 9:17 AM Howard Hedlund <howard@...> wrote: Oops, my bad! I missed the remote part. Mike's suggestion will work just fine then. The intermediate park is needed to reset the internal limits to allow the mount to get into the position you desire - Park 3 - using the direction buttons. |
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Re: Ap1100 lost directions
Oops, my bad! I missed the remote part. Mike's suggestion will work just fine then. The intermediate park is needed to reset the internal limits to allow the mount to get into the position you desire - Park 3 - using the direction buttons.
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Re: First night out with the 1100-AE
Ken Sablinsky
Thanks Karen! And Howard, agree 100% with the plug and play nature of these mounts. I live in a foggy coastal town and bits of fog and low clouds drifting through the image is a never-ending battle. The guidestar would always get lost, triggering an abort or at least a long delay while I reacquired and started the sequence up again. Now, the mount happily tracks through the fog no problem. It's weird getting used to not having to listen for the dreaded "guidestar lost" chime! -Ken On Tue, Nov 29, 2022 at 8:53 AM Howard Hedlund <howard@...> wrote: That's what we like: Plug and Play. Set it up and forget about it, because it just works. |
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Re: Ap1100 lost directions
>>>To establish a "home" position, use the "Homing/Limits" tab in APCC while the mount is "connected". T Assuming you can get this done, the first thing after that is establish your home position, so you don't have to go through this again! On Tue, Nov 29, 2022 at 7:20 AM Mike Hanson <mikeh@...> wrote: Tarun, --
Brian Brian Valente astro portfolio https://www.brianvalentephotography.com/astrophotography/ portfolio brianvalentephotography.com |
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Re: Ap1100 lost directions
Hi Tarun,
Since you will be establishing pointing and orientation anyway when you unpark from Park 3, you could also simply:
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