Date   

Re: [ap-ug] Gonna shoot tonight - it's clear and BRRRRR

dvjbaja
 

Its fairly easy to set up chrome remote on your notebook at the telescope so you can operate all pc functions from the 2nd pc in the warm and comfortable home.  -jg


Sent via the Samsung Galaxy Note9, an AT&T 5G Evolution capable smartphone


-------- Original message --------
From: "Roland Christen via groups.io" <chris1011@...>
Date: 2/13/21 5:54 PM (GMT-08:00)
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] [ap-ug] Gonna shoot tonight - it's clear and BRRRRR

My joints don't work so good either. And sometimes my brain too. I set the exposures at 3 x 10 minutes and came inside. Guider was doing its job. After 30 minutes I went outside and no images! rats! I forgot to turn on Expose. So, first 30 min was wasted. But going good now.

Rolando



-----Original Message-----
From: Robert Sinitiere <bobstar9@...>
To: main@ap-gto.groups.io
Sent: Sat, Feb 13, 2021 7:43 pm
Subject: Re: [ap-gto] [ap-ug] Gonna shoot tonight - it's clear and BRRRRR

Roland, You are ALL better and tougher men than am I.  Roland, you are perpetually a 25 year old lad.  I’m 71 now, and feeling it in my joints.  Bob
PS:  Clear skies, it is cloudy here.


On Feb 13, 2021, at 7:14 PM, Roland Christen via groups.io <chris1011@...> wrote:


Oh yeah! I'm well aware but have experienced colder in the past. 10 minutes working with the computer is about the limit, but I have nice warm tea inside. Right now mount and camera are working well. Transparency is super, seeing is horrid. We'll see what we get.

Roland



-----Original Message-----
From: thefamily90 Phillips <thefamily90@...>
To: main@ap-ug.groups.io <main@ap-ug.groups.io>; main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Sat, Feb 13, 2021 6:15 pm
Subject: Re: [ap-gto] [ap-ug] Gonna shoot tonight - it's clear and BRRRRR

Man, don’t get hypothermic or frostbite! Keep those fingers and toes warm. Good Luck!!

JimP 


From: main@ap-ug.groups.io <main@ap-ug.groups.io> on behalf of Roland Christen via groups.io <chris1011@...>
Sent: Saturday, February 13, 2021 7:11:52 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>; main@ap-ug.groups.io <main@ap-ug.groups.io>
Subject: [ap-ug] Gonna shoot tonight - it's clear and BRRRRR
 
I'm going to give it a try with my Mach2 in sub-zero F temps. It's brilliantly clear (YAY!) but below zero (Wahh!). I hope my laptop doesn't freeze up on me. Wish me luck.

Testing continues primarily to see where and if the normal temp encoders will fail to operate in sub-zero conditions. So far they work fine but we have not seen -20F yet. Maybe Sunday night - Monday morning. Coldest it's ever been in Northern Illinois is -32F, but haven't seen that in the last 10 years.

Rolando

--
Roland Christen
Astro-Physics

--
Roland Christen
Astro-Physics


Re: [ap-ug] Gonna shoot tonight - it's clear and BRRRRR

Roland Christen
 

Yes, last summer I would not have imagined being out here at sub zero temps, imaging. However, things are going well. Tracking is proceeding at 0.25 arc sec RMS, even though the stars are a bit wooly due to poor seeing. They are not jumping around, just being somewhat fuzzy, which is typical of very cold nights here.

Might post a screen shot later when my fingers warm up. It is now -10F according to my thermometer. There's a lot of radiation to the dark sky, which is dropping the temperature rapidly. My 160 EDF refractor, which is airspaced, is holding its own. No issue as far as pinched optics or plumes. I would have expected some heat plumes from the CCD camera warming up the insides, but so far so good.

Rolando


-----Original Message-----
From: John Nassr via groups.io <jnassr2010@...>
To: main@ap-ug.groups.io <main@ap-ug.groups.io>
Sent: Sat, Feb 13, 2021 7:59 pm
Subject: Re: [ap-ug] Gonna shoot tonight - it's clear and BRRRRR

I read with utter amazement what you endeavor to do in -20F. In truth, such temperatures are totally incomprehensible to someone like me from the tropics in the Philippines where the night time low is a balmy 72F, and believe it or not is "really cold" so that folks "need" a thin blanket at night!!

I look forward to more of your adventures in the freeze.

John

On Sunday, February 14, 2021, 9:16:24 AM GMT+8, Roland Christen via groups.io <chris1011@...> wrote:



put the laptop in a cardboard box,
I have a nice insulated one, and yes, that works great.

Rol


-----Original Message-----
From: Kurt Friedrich via groups.io <kurt_friedrich@...>
To: main@ap-ug.groups.io <main@ap-ug.groups.io>; main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Sat, Feb 13, 2021 6:34 pm
Subject: Re: [ap-ug] Gonna shoot tonight - it's clear and BRRRRR

put the laptop in a cardboard box, as small as possible while still giving you access to it.
It generates its own heat, just give it a some insulation.

On Saturday, February 13, 2021, 04:15:33 PM PST, thefamily90 Phillips <thefamily90@...> wrote:


Man, don’t get hypothermic or frostbite! Keep those fingers and toes warm. Good Luck!!

JimP 


From: main@ap-ug.groups.io <main@ap-ug.groups.io> on behalf of Roland Christen via groups.io <chris1011@...>
Sent: Saturday, February 13, 2021 7:11:52 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>; main@ap-ug.groups.io <main@ap-ug.groups.io>
Subject: [ap-ug] Gonna shoot tonight - it's clear and BRRRRR
 
I'm going to give it a try with my Mach2 in sub-zero F temps. It's brilliantly clear (YAY!) but below zero (Wahh!). I hope my laptop doesn't freeze up on me. Wish me luck.

Testing continues primarily to see where and if the normal temp encoders will fail to operate in sub-zero conditions. So far they work fine but we have not seen -20F yet. Maybe Sunday night - Monday morning. Coldest it's ever been in Northern Illinois is -32F, but haven't seen that in the last 10 years.

Rolando

--
Jim Phillips

--
Roland Christen
Astro-Physics


Re: [ap-ug] Gonna shoot tonight - it's clear and BRRRRR

Roland Christen
 

My joints don't work so good either. And sometimes my brain too. I set the exposures at 3 x 10 minutes and came inside. Guider was doing its job. After 30 minutes I went outside and no images! rats! I forgot to turn on Expose. So, first 30 min was wasted. But going good now.

Rolando



-----Original Message-----
From: Robert Sinitiere <bobstar9@...>
To: main@ap-gto.groups.io
Sent: Sat, Feb 13, 2021 7:43 pm
Subject: Re: [ap-gto] [ap-ug] Gonna shoot tonight - it's clear and BRRRRR

Roland, You are ALL better and tougher men than am I.  Roland, you are perpetually a 25 year old lad.  I’m 71 now, and feeling it in my joints.  Bob
PS:  Clear skies, it is cloudy here.


On Feb 13, 2021, at 7:14 PM, Roland Christen via groups.io <chris1011@...> wrote:


Oh yeah! I'm well aware but have experienced colder in the past. 10 minutes working with the computer is about the limit, but I have nice warm tea inside. Right now mount and camera are working well. Transparency is super, seeing is horrid. We'll see what we get.

Roland



-----Original Message-----
From: thefamily90 Phillips <thefamily90@...>
To: main@ap-ug.groups.io <main@ap-ug.groups.io>; main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Sat, Feb 13, 2021 6:15 pm
Subject: Re: [ap-gto] [ap-ug] Gonna shoot tonight - it's clear and BRRRRR

Man, don’t get hypothermic or frostbite! Keep those fingers and toes warm. Good Luck!!

JimP 


From: main@ap-ug.groups.io <main@ap-ug.groups.io> on behalf of Roland Christen via groups.io <chris1011@...>
Sent: Saturday, February 13, 2021 7:11:52 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>; main@ap-ug.groups.io <main@ap-ug.groups.io>
Subject: [ap-ug] Gonna shoot tonight - it's clear and BRRRRR
 
I'm going to give it a try with my Mach2 in sub-zero F temps. It's brilliantly clear (YAY!) but below zero (Wahh!). I hope my laptop doesn't freeze up on me. Wish me luck.

Testing continues primarily to see where and if the normal temp encoders will fail to operate in sub-zero conditions. So far they work fine but we have not seen -20F yet. Maybe Sunday night - Monday morning. Coldest it's ever been in Northern Illinois is -32F, but haven't seen that in the last 10 years.

Rolando

--
Roland Christen
Astro-Physics

--
Roland Christen
Astro-Physics


Re: [ap-ug] Gonna shoot tonight - it's clear and BRRRRR

Robert Sinitiere
 

Roland, You are ALL better and tougher men than am I.  Roland, you are perpetually a 25 year old lad.  I’m 71 now, and feeling it in my joints.  Bob
PS:  Clear skies, it is cloudy here.


On Feb 13, 2021, at 7:14 PM, Roland Christen via groups.io <chris1011@...> wrote:


Oh yeah! I'm well aware but have experienced colder in the past. 10 minutes working with the computer is about the limit, but I have nice warm tea inside. Right now mount and camera are working well. Transparency is super, seeing is horrid. We'll see what we get.

Roland



-----Original Message-----
From: thefamily90 Phillips <thefamily90@...>
To: main@ap-ug.groups.io <main@ap-ug.groups.io>; main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Sat, Feb 13, 2021 6:15 pm
Subject: Re: [ap-gto] [ap-ug] Gonna shoot tonight - it's clear and BRRRRR

Man, don’t get hypothermic or frostbite! Keep those fingers and toes warm. Good Luck!!

JimP 


From: main@ap-ug.groups.io <main@ap-ug.groups.io> on behalf of Roland Christen via groups.io <chris1011@...>
Sent: Saturday, February 13, 2021 7:11:52 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>; main@ap-ug.groups.io <main@ap-ug.groups.io>
Subject: [ap-ug] Gonna shoot tonight - it's clear and BRRRRR
 
I'm going to give it a try with my Mach2 in sub-zero F temps. It's brilliantly clear (YAY!) but below zero (Wahh!). I hope my laptop doesn't freeze up on me. Wish me luck.

Testing continues primarily to see where and if the normal temp encoders will fail to operate in sub-zero conditions. So far they work fine but we have not seen -20F yet. Maybe Sunday night - Monday morning. Coldest it's ever been in Northern Illinois is -32F, but haven't seen that in the last 10 years.

Rolando

--
Roland Christen
Astro-Physics


Re: California on fire

Dale Penkala
 

Well deserved sir!


Re: California on fire

Glenn
 

Thank you, Dale!

Best,

Glenn Diekmann


Re: Gonna shoot tonight - it's clear and BRRRRR

Terry Martin
 

And what a great job it is and a what a great job you do.

Terry


Re: [ap-ug] Gonna shoot tonight - it's clear and BRRRRR

Roland Christen
 


put the laptop in a cardboard box,
I have a nice insulated one, and yes, that works great.

Rol


-----Original Message-----
From: Kurt Friedrich via groups.io <kurt_friedrich@...>
To: main@ap-ug.groups.io <main@ap-ug.groups.io>; main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Sat, Feb 13, 2021 6:34 pm
Subject: Re: [ap-ug] Gonna shoot tonight - it's clear and BRRRRR

put the laptop in a cardboard box, as small as possible while still giving you access to it.
It generates its own heat, just give it a some insulation.

On Saturday, February 13, 2021, 04:15:33 PM PST, thefamily90 Phillips <thefamily90@...> wrote:


Man, don’t get hypothermic or frostbite! Keep those fingers and toes warm. Good Luck!!

JimP 


From: main@ap-ug.groups.io <main@ap-ug.groups.io> on behalf of Roland Christen via groups.io <chris1011@...>
Sent: Saturday, February 13, 2021 7:11:52 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>; main@ap-ug.groups.io <main@ap-ug.groups.io>
Subject: [ap-ug] Gonna shoot tonight - it's clear and BRRRRR
 
I'm going to give it a try with my Mach2 in sub-zero F temps. It's brilliantly clear (YAY!) but below zero (Wahh!). I hope my laptop doesn't freeze up on me. Wish me luck.

Testing continues primarily to see where and if the normal temp encoders will fail to operate in sub-zero conditions. So far they work fine but we have not seen -20F yet. Maybe Sunday night - Monday morning. Coldest it's ever been in Northern Illinois is -32F, but haven't seen that in the last 10 years.

Rolando

--
Jim Phillips

--
Roland Christen
Astro-Physics


Re: Gonna shoot tonight - it's clear and BRRRRR

Roland Christen
 

'Tis my job ;))

Rol



-----Original Message-----
From: Terry Martin <terry@...>
To: main@ap-gto.groups.io
Sent: Sat, Feb 13, 2021 6:16 pm
Subject: Re: [ap-gto] Gonna shoot tonight - it's clear and BRRRRR

Good Luck Roland.  You're far braver than me.

Terry

--
Roland Christen
Astro-Physics


Re: [ap-ug] Gonna shoot tonight - it's clear and BRRRRR

Roland Christen
 

Oh yeah! I'm well aware but have experienced colder in the past. 10 minutes working with the computer is about the limit, but I have nice warm tea inside. Right now mount and camera are working well. Transparency is super, seeing is horrid. We'll see what we get.

Roland



-----Original Message-----
From: thefamily90 Phillips <thefamily90@...>
To: main@ap-ug.groups.io <main@ap-ug.groups.io>; main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Sat, Feb 13, 2021 6:15 pm
Subject: Re: [ap-gto] [ap-ug] Gonna shoot tonight - it's clear and BRRRRR

Man, don’t get hypothermic or frostbite! Keep those fingers and toes warm. Good Luck!!

JimP 


From: main@ap-ug.groups.io <main@ap-ug.groups.io> on behalf of Roland Christen via groups.io <chris1011@...>
Sent: Saturday, February 13, 2021 7:11:52 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>; main@ap-ug.groups.io <main@ap-ug.groups.io>
Subject: [ap-ug] Gonna shoot tonight - it's clear and BRRRRR
 
I'm going to give it a try with my Mach2 in sub-zero F temps. It's brilliantly clear (YAY!) but below zero (Wahh!). I hope my laptop doesn't freeze up on me. Wish me luck.

Testing continues primarily to see where and if the normal temp encoders will fail to operate in sub-zero conditions. So far they work fine but we have not seen -20F yet. Maybe Sunday night - Monday morning. Coldest it's ever been in Northern Illinois is -32F, but haven't seen that in the last 10 years.

Rolando

--
Roland Christen
Astro-Physics


Re: Gonna shoot tonight - it's clear and BRRRRR

Terry Martin
 

Good Luck Roland.  You're far braver than me.

Terry


Re: [ap-ug] Gonna shoot tonight - it's clear and BRRRRR

thefamily90 Phillips
 

Man, don’t get hypothermic or frostbite! Keep those fingers and toes warm. Good Luck!!

JimP 


From: main@ap-ug.groups.io <main@ap-ug.groups.io> on behalf of Roland Christen via groups.io <chris1011@...>
Sent: Saturday, February 13, 2021 7:11:52 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>; main@ap-ug.groups.io <main@ap-ug.groups.io>
Subject: [ap-ug] Gonna shoot tonight - it's clear and BRRRRR
 
I'm going to give it a try with my Mach2 in sub-zero F temps. It's brilliantly clear (YAY!) but below zero (Wahh!). I hope my laptop doesn't freeze up on me. Wish me luck.

Testing continues primarily to see where and if the normal temp encoders will fail to operate in sub-zero conditions. So far they work fine but we have not seen -20F yet. Maybe Sunday night - Monday morning. Coldest it's ever been in Northern Illinois is -32F, but haven't seen that in the last 10 years.

Rolando


Gonna shoot tonight - it's clear and BRRRRR

Roland Christen
 

I'm going to give it a try with my Mach2 in sub-zero F temps. It's brilliantly clear (YAY!) but below zero (Wahh!). I hope my laptop doesn't freeze up on me. Wish me luck.

Testing continues primarily to see where and if the normal temp encoders will fail to operate in sub-zero conditions. So far they work fine but we have not seen -20F yet. Maybe Sunday night - Monday morning. Coldest it's ever been in Northern Illinois is -32F, but haven't seen that in the last 10 years.

Rolando

--
Roland Christen
Astro-Physics


Re: California on fire

Dale Penkala
 

Beautiful!


Re: Mach2 Guide rate and question about gear meshing.

Micheal Fields Jr
 

Worked thank you.  The email you provided had the stuff after "@" deleted / removed by the group hosting software so I took a guess and was wrong.


Re: Mach2 Guide rate and question about gear meshing.

Roland Christen
 

If this doesn't work I'll see if I can get your e-mail address from the office.

Roland



-----Original Message-----
From: chris1011@...
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Sat, Feb 13, 2021 2:26 pm
Subject: Re: [ap-gto] Mach2 Guide rate and question about gear meshing.

Send your e-mail to: chris1011@...
It won't bounce.

Roland



-----Original Message-----
From: Micheal Fields Jr via groups.io <mpfjr@...>
To: main@ap-gto.groups.io
Sent: Sat, Feb 13, 2021 2:11 pm
Subject: Re: [ap-gto] Mach2 Guide rate and question about gear meshing.

You didn't see my note.  The email to chris1011@ ...  bounced back.  Was invalid or whatever.  If you could email to joeplayer99@... that is my spam email account that I am fine posting on the group and taking the risk.

mx110.antispamcloud.com rejected your message to the following email addresses:
chris1011@ (chris1011@)I removed the rest of the email address manually.
Your message couldn't be delivered. When Office 365 tried to send the message, the external email server returned the error below. This is probably due to a problem or policy setting on the recipient's email system.I 



--
Roland Christen
Astro-Physics


Re: Mach2 Guide rate and question about gear meshing.

Roland Christen
 

Send your e-mail to: chris1011@...
It won't bounce.

Roland



-----Original Message-----
From: Micheal Fields Jr via groups.io <mpfjr@...>
To: main@ap-gto.groups.io
Sent: Sat, Feb 13, 2021 2:11 pm
Subject: Re: [ap-gto] Mach2 Guide rate and question about gear meshing.

You didn't see my note.  The email to chris1011@ ...  bounced back.  Was invalid or whatever.  If you could email to joeplayer99@... that is my spam email account that I am fine posting on the group and taking the risk.

mx110.antispamcloud.com rejected your message to the following email addresses:
chris1011@ (chris1011@)I removed the rest of the email address manually.
Your message couldn't be delivered. When Office 365 tried to send the message, the external email server returned the error below. This is probably due to a problem or policy setting on the recipient's email system.I 



--
Roland Christen
Astro-Physics


Re: Mach2 Guide rate and question about gear meshing.

Micheal Fields Jr
 

You didn't see my note.  The email to chris1011@ ...  bounced back.  Was invalid or whatever.  If you could email to joeplayer99@... that is my spam email account that I am fine posting on the group and taking the risk.

mx110.antispamcloud.com rejected your message to the following email addresses:

chris1011@ (chris1011@)I removed the rest of the email address manually.

Your message couldn't be delivered. When Office 365 tried to send the message, the external email server returned the error below. This is probably due to a problem or policy setting on the recipient's email system.I 



Re: Mach2 Guide rate and question about gear meshing.

Roland Christen
 

Ok, I' ll be waiting.

Rolando



-----Original Message-----
From: Micheal Fields Jr via groups.io <mpfjr@...>
To: main@ap-gto.groups.io
Sent: Fri, Feb 12, 2021 5:59 pm
Subject: Re: [ap-gto] Mach2 Guide rate and question about gear meshing.

[Edited Message Follows]
Sorry I did not yet. Going to do so now.  Very busy around here today.

Edit: email bounced back.  

You are welcome to email me directly.  This is my junk email.  joeplayer99@...   Not worried about it being public.

--
Roland Christen
Astro-Physics


Re: [ap-ug] Reflections Nightmare - I'm ready to give up the hobby!

Roland Christen
 

Hello,

I cannot be sure about our QuadTCC working with your scope to produce no reflections. However, i do know that our 130 field flattener will work and produce zero reflections. It has been designed with convex radii so that any light reflected from the filters will be dispersed toward the outside of the focal plane and not towards the middle.

here is a simple test that you can do to determine where the reflections originate. Take an image with your filters and no field flattener or telecompressor in the optical path. If you still see reflections, then it is caused by your filters. Filters like the Astrodon series, have a sharp cutoff of each color, so they will pass the principal color and reflect the ones outside their passband. The colors that are reflected back up toward the telecompressor will then be rejected if they are reflected back from the telecompressor down to the chip. They will not be able to pass thru the filter again. Other filters may have less steep cutoff, and thereby allow some of the reflected light to pass again thru the filter and produce halos or reflection artifacts.

I have used Astrodon filters in all of my cameras since many years now and have never seen reflections like the ones in your images. However, I know about your reflections because I did have multiple reflections from a set of less expensive filters.

As far as using our 130 Field Flattener, I can assure you that this will not produce reflections, even if your filters do not have a sharp cutoff. If you have been watching our group for some time, you may have seen images taken by Ignacio, a lot of them became APOD images, and you will see the contrast and zero reflections in all of his images. I worked with him years ago to produce just the right Flattener design geometry to eliminate even the slightest hint of reflections - Ignacio was extremely demanding that this optic works perfectly.

So, the solution might require both testing a different filter and a different field flattener. The problem is not coming from the main objective for sure. So try my suggestion of removing the field flattener first and see if the reflections go away. Then the solution might be either change the filters or change the field flattener or both for best results.

Rolando


-----Original Message-----
From: Jon <jonkelly999@...>
To: main@ap-ug.groups.io
Sent: Sat, Feb 13, 2021 6:08 am
Subject: [ap-ug] Reflections Nightmare - I'm ready to give up the hobby!

I have posted previously about reflections with a Riccardi reducer but now have the same issue with a native flattener and I have tried everything I can think off. 

My objective is to purchase a QUADTCC to replace the Riccardi but I cant do this until I sort out the existing reflections which I now suspect are coming from the sensor/filters.

I have now spent over 20 imaging sessions since October trying to sort out the issue and it has become such a chore that I'm ready to give up the hobby - can anyone help? 

Equipment - CFF 135/926mm, QHY600L, Chroma LRGB and 3nm Ha/OIII/SII. 

I have tried reversing filters individually in all permutations, moved spacing from between Objective and Filters to between Filters and Sensor and its just balloon squeezing. One filter works, then another one doesn't. Lights work but flats don't or vice versa. Nothing I do seems to help.

I can take images with no bright stars ok but as soon as I try something like the Pleiades I have issues. 

These are the latest test images on Pleiades, one for each filter - all 120s subs. All have reflections.
https://www.dropbox.com/sh/gn2x15vu8hs1whn/AADquWhGxYyE_SvfevDrYyzKa?dl=0

Can these reflections be resolved or am I wasting my time?

I would be very grateful if anyone could help or work with me to try and sort this out.

Thanks
Jon

--
Roland Christen
Astro-Physics

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