That's beautiful Bruce.
I always find your supporting notes interesting, however, the linked wiki page on your websites says that the central bar is ~500M years old, whereas your covering email note say ~50M years. Was that a typo, or do you have another source showing that it is
much younger?
Regards,
Geof?
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This is an image of NGC 3359, a barred spiral galaxy in Ursa Major located about 59M light-years away.? The striking central bar is rather curious because it is much younger than the spiral arms – 50M years vs several billion years.? It also appears to
be rotating at 2-3x the rate of the surrounding spiral arms.? To the upper left of NGC 3359 is a faint blue dwarf galaxy that was first noticed in a Sloan digital sky survey image.? Dubbed the “Little Cub”, it is one of the most pristine dwarf galaxies known
in our cosmic neighborhood and is thought to contain the chemical elements forged only a few minutes after the Big Bang.? It still has sufficient gas to support star formation but it is now making its first pass near NGC 3359 which is likely to lead to the
stripping of its gas and its eventual demise. The image was captured during 7 nights in April and June, bracketing unexpected May monsoons in New Mexico. Image acquisition was done with a 12.5" PlaneWave scope and a QSI-640ws camera at f/8 for a final LRGB
integration of 16.3 hours.
Thanks for looking,
Bruce W.
|
This is an image of NGC 3359, a barred spiral galaxy in Ursa Major located about 59M light-years away.? The striking central bar is rather curious because it is much younger than the spiral arms – 50M years vs several billion years.? It also appears to be rotating at 2-3x the rate of the surrounding spiral arms.? To the upper left of NGC 3359 is a faint blue dwarf galaxy that was first noticed in a Sloan digital sky survey image.? Dubbed the “Little Cub”, it is one of the most pristine dwarf galaxies known in our cosmic neighborhood and is thought to contain the chemical elements forged only a few minutes after the Big Bang.? It still has sufficient gas to support star formation but it is now making its first pass near NGC 3359 which is likely to lead to the stripping of its gas and its eventual demise. The image was captured during 7 nights in April and June, bracketing unexpected May monsoons in New Mexico. Image acquisition was done with a 12.5" PlaneWave scope and a QSI-640ws camera at f/8 for a final LRGB integration of 16.3 hours.
Thanks for looking,
Bruce W.
|
Hi Roy,?
Sorry to hear about your issues.
I use a few different programs, operating systems, and cameras. For me there is only one caution to follow and that is to Power On first, connect USB second and then carry spare cables, but your situation does not like this.?
Here a photo or named drawing may help me, but please don’t randomly swap power supplies or power leads as a wrong polarity would be catastrophic.
Because your camera will not boot, Common causes -?
- I suspect Power to the camera and more specifically the plug and socket but including the possibility of cable fracture or change in conductivity due to bending and breaking.?
- Your installation or a plugboard may have the fault - to prove it, plug a bed lamp or light load into your main source to prove you have power to the input of your power supply, leave it plugged in and then plug in your power supply and camera
- Are you running on DC or batteries, if so please send pictures.
From your history, It appears that the problem is PRE Power Supply.
Remember to turn off the Camera, wait 10 to 15 seconds before rebooting.
For me - All my DC leads and spares are Marked and Tested ?for conductivity and polarity so I can quickly exchange leads etc.?
regards
Len
On 28 Jun 2023, at 06:02, Roy Hansen < ohills@...> wrote:
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My 6120 has been having intermittent power problems for a while. I’ve changed power supplies it it worked for a couple of weeks. ?Just last week when connecting no lights or sounds. Tried a brand new supply and still nothing. This is in my observatory.
Picked it up today and took it home. Plugged it into my laptop connected the usb and it powered on. Even the old power supply worked. Could there be a problem with the usb port or the usb cable. I sent it to Atik a year and a half ago and they couldn’t find
anything wrong with it. It’s still connected to the same computer in the observatory?
Thanks, ?Roy
|
My 6120 has been having intermittent power problems for a while. I’ve changed power supplies it it worked for a couple of weeks. ?Just last week when connecting no lights or sounds. Tried a brand new supply and still nothing. This is in my observatory. Picked it up today and took it home. Plugged it into my laptop connected the usb and it powered on. Even the old power supply worked. Could there be a problem with the usb port or the usb cable. I sent it to Atik a year and a half ago and they couldn’t find anything wrong with it. It’s still connected to the same computer in the observatory?
Thanks, ?Roy
|
[OT] CEDIC'24 - Save The Date
Hi astrophotographers! We are happy to announce CEDIC’24!
The Central European Deepsky Imaging Conference (CEDIC) is the leading conference for deep sky astrophotography in Europe. The conference will take place from March 22 to 24, 2024, in Linz, Austria.
In addition to the keynote lecture by Russell Croman, we look forward to many top lectures and interesting workshops from some of the world's most experienced astrophotographers.
Please register to our newsletter to stay informed.
We hope to see many of you at CEDIC! CEDIC Spotlight Team
|
Re: MArkarian's Chain and M87
Thanks for all the positive comments
|
Re: MArkarian's Chain and M87
Very nicely done Geoff.
Clear skies,
Kevin
On June 21, 2023, at 6:27 AM, Geoff Smith <ghsmith45@...> wrote:
I grabbed this one early Friday and Saturday at the last new moon weekend. It was a bit late in the season for us SH people so it was transiting by the time darkness arrived. It is a 2 image mosaic and I could only get a bit over 2.5 hours on each pane before it got too low--not as much as I would have wanted.
Telescope: Televue NP101is
Mount: AP900
Camera: QSI540wsg
FOV: 1.5° x 2.6°
Processed entirely in PixInsight
The link with technical details is here
Higher res here
|
Re: MArkarian's Chain and M87
Nice image, Geoff, especially for having to be in such a hurry!
Bruce W.
|
Re: MArkarian's Chain and M87
Very nice, Geoff
Von meinem/meiner Galaxy gesendet
-------- Ursprüngliche Nachricht -------- Von: Geoff Smith <ghsmith45@...> Datum: 21.06.23 12:27 (GMT+01:00) Betreff: [QSI-CCD] MArkarian's Chain and M87
I grabbed this one early Friday and Saturday at the last new moon weekend. It was a bit late in the season for us SH people so it was transiting by the time darkness arrived. It is a 2 image mosaic and I could only get a bit over 2.5 hours on each pane before it got too low--not as much as I would have wanted. Telescope: Televue NP101is Mount: AP900 Camera: QSI540wsg FOV: 1.5° x 2.6° Processed entirely in PixInsight The link with technical details is here Higher res here
|
MArkarian's Chain and M87
I grabbed this one early Friday and Saturday at the last new moon weekend. It was a bit late in the season for us SH people so it was transiting by the time darkness arrived. It is a 2 image mosaic and I could only get a bit over 2.5 hours on each pane before it got too low--not as much as I would have wanted.
Telescope: Televue NP101is
Mount: AP900
Camera: QSI540wsg
FOV: 1.5° x 2.6°
Processed entirely in PixInsight
The link with technical details is here
Higher res here
|
Re: QSI583: filter wheel not perfectly positioning the filter over the ccd window
Hi Steve,
thanks for the simple procedure. I'll give it a try asap.
Nicola
Good morning, Nicola.? It’s very simple: take a cotton swap and dampen it (not soak it) with isopropyl alcohol - any percentage is fine - and gently swab the o-ring as much as is available, and the capstan, as well.?
My camera was only 2 years old when the issue developed, which was unusual, but it did solve the problem. I hope it will work for you.? ?- - Steve? Sent From Steve’s IPhone? ? Hi Steve,
thanks for the suggestions. Would you please explain to me the procedure you used to clean the rubber ring and the capstan roller?
Many thanks Nicola Hi Nicola, Several suggestions. The position of the filter wheel is determined by a particular barcode assigned to each filter slot, and read by an optical scanner, as is the case on my 683wsg. Is anything on the filter wheel scratched or marred in any way as to compromise this?
Also, the rotation of the filter wheel is accomplished by a motor and capstan pressured against the rubber ring around the edge of the filter wheel. I had this issue (don't know why - the camera is in an observatory), and fixed it by gently cleaning the rubber ring on the filter wheel, as well as the surface of the capstan roller against which it is pressed. This assured that good contact between the capstan and rubber ring was maintained.
That's all I can think of for now. Hope it helps a bit ?- - Steve
Hello All,
does anybody of you had issues with the filter wheel non perfectly positioning the filter over the ccd window?
The test I did was: 1) Opening the cover and positioning the filter number 1 over the window manually
2) by using a common software, moving all the filter carousel (LRGBH) one by one over the window 3) After coming back to the first filter again (L) the correct position is lost, i.e. is shifted of, let's say 1mm
A similar test was: 0) power off camera 1) move manually the?filter 1 correctly over the ccd window 2) power on camera 3) the camera goes into starting mode moving the carousel of a complete rotation. 4) The filter 1 does not come in the same place, but it is slightly "behind" the correct position
How can I adjust this?
Many thanks for your help Nicola -- Nicola
Sky Monsters -
Skype: betelgeuse368
-- Nicola
Sky Monsters -
Skype: betelgeuse368
-- Nicola
Sky Monsters -
Skype: betelgeuse368
|
Re: CEDIC Team goes Namibia - Part#10 (Highlights in Sgr)
Hello Kevin, Wolfgang, Geof, Peter and Bruce,
Thank you very much for your nice words!
best,
Bernhard
|
Re: CEDIC Team goes Namibia - Part#10 (Highlights in Sgr)
Another very fine collection of images, guys, well done!
Bruce W.
|
Re: CEDIC Team goes Namibia - Part#10 (Highlights in Sgr)
Amazing! Well done! Images like those really do make it worth the effort of going to Namibia. Wonderful skies and superb images.
Cheers,
Peter (in not cloudy but twilit NE England)
Approx. 55 deg N, 2 deg W (Northumberland, UK)
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Show quoted text
On 15/06/2023 17:48, Bernhard Hubl wrote: Hello group,
‘Highlights in Sagittarius’ is the topic of part #10 of our image presentation, where we want to share the results from our astrophotography-trip to DeepSkySafaris in Namibia. The constellation Sagittarius offers such a wide range of interesting objects that you could spend many nights just looking at this constellation. On our trip we chose some of the great classics like the Lagoon Nebula Messier 8 or Messier 20 - a mixture of emission, reflection and dark nebula. Also the one or other open star cluster may not be missing and sometimes you should also look for something beside the known paths - then you will find treasures like NGC 6559.
M 8 with Esprit 120:
<>
M 17 with Esprit 120:
<>
M 20 with Esprit 120:
<>
M 23 with Esprit 100:
<>
M 23 wide-field with Vixen FL55SS:
<>
NGC 6520 with Esprit 120:
<>
NGC 6559 with 10” Newtonian:
<>
NGC 6559 wide-field with Vixen FL55SS:
<>
Overview on all results from Namibia 2022 including background information:
<>
<>
<>
*Important CEDIC conference news:*
*We are already preparing the CEDIC'24! Save the date!*
*Location: Linz (Austria)*
*Date: March 22-24 2024*
Greetings from CEDIC-Team
Markus Blauensteiner
Bernhard Hubl
www.cedic.at <>
www.ccdguide.com <>
www.deepskysafaris.com <>
|
Re: CEDIC Team goes Namibia - Part#10 (Highlights in Sgr)
Bernhard,
I couldn't agree with Kevin more; these are fabulous images, which I spent some time navigating at full resolution. There's so much to see in each image, besides the obvious named targets. Simply superb work.
Geof
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Show quoted text
Absolutely gorgeous images Bernhard.? Very well done!
Kevin
From: "Bernhard Hubl" <b.hubl@...>
To: "QSI-CCD" < [email protected]>
Sent: Thursday, June 15, 2023 12:48:47 PM
Subject: [QSI-CCD] CEDIC Team goes Namibia - Part#10 (Highlights in Sgr)
Hello group,
‘Highlights in Sagittarius’ is the topic of part #10 of our image presentation, where we want to share the results from our astrophotography-trip to DeepSkySafaris in Namibia. The constellation Sagittarius offers such a wide range of interesting
objects that you could spend many nights just looking at this constellation. On our trip we chose some of the great classics like the Lagoon Nebula Messier 8 or Messier 20 - a mixture of emission, reflection and dark nebula. Also the one or other open star
cluster may not be missing and sometimes you should also look for something beside the known paths - then you will find treasures like NGC 6559.
?
M 8 with Esprit 120:
?
M 17 with Esprit 120:
?
M 20 with Esprit 120:
?
M 23 with Esprit 100:
?
M 23 wide-field with Vixen FL55SS:
?
NGC 6520 with Esprit 120:
?
NGC 6559 with 10” Newtonian:
?
NGC 6559 wide-field with Vixen FL55SS:
?
Overview on all results from Namibia 2022 including background information:
?
Important CEDIC conference news:
We are already preparing the CEDIC'24! Save the date!
Location: Linz (Austria)
Date: March 22-24 2024
?
Greetings from CEDIC-Team
Markus Blauensteiner
Bernhard Hubl
?
|
Re: CEDIC Team goes Namibia - Part#10 (Highlights in Sgr)
Einfach toll! ? ? Hello group, ‘Highlights in Sagittarius’ is the topic of part #10 of our image presentation, where we want to share the results from our astrophotography-trip to DeepSkySafaris in Namibia. The constellation Sagittarius offers such a wide range of interesting objects that you could spend many nights just looking at this constellation. On our trip we chose some of the great classics like the Lagoon Nebula Messier 8 or Messier 20 - a mixture of emission, reflection and dark nebula. Also the one or other open star cluster may not be missing and sometimes you should also look for something beside the known paths - then you will find treasures like NGC 6559. ? M 8 with Esprit 120:
? M 17 with Esprit 120:
? M 20 with Esprit 120:
? M 23 with Esprit 100:
? M 23 wide-field with Vixen FL55SS:
? NGC 6520 with Esprit 120:
? NGC 6559 with 10” Newtonian:
? NGC 6559 wide-field with Vixen FL55SS:
? Overview on all results from Namibia 2022 including background information:
? Important CEDIC conference news: We are already preparing the CEDIC'24! Save the date! Location: Linz (Austria) Date: March 22-24 2024 ? Greetings from CEDIC-Team Markus Blauensteiner Bernhard Hubl ?
|
Re: CEDIC Team goes Namibia - Part#10 (Highlights in Sgr)
Absolutely gorgeous images Bernhard.? Very well done!
Kevin
From: "Bernhard Hubl" <b.hubl@...> To: "QSI-CCD" < [email protected]> Sent: Thursday, June 15, 2023 12:48:47 PM Subject: [QSI-CCD] CEDIC Team goes Namibia - Part#10 (Highlights in Sgr)
Hello group,
‘Highlights in Sagittarius’ is the topic of part #10 of our image presentation, where we want to share the results from our astrophotography-trip to DeepSkySafaris in Namibia. The constellation Sagittarius offers such a wide range of interesting objects that you could spend many nights just looking at this constellation. On our trip we chose some of the great classics like the Lagoon Nebula Messier 8 or Messier 20 - a mixture of emission, reflection and dark nebula. Also the one or other open star cluster may not be missing and sometimes you should also look for something beside the known paths - then you will find treasures like NGC 6559.
?
M 8 with Esprit 120:
?
M 17 with Esprit 120:
?
M 20 with Esprit 120:
?
M 23 with Esprit 100:
?
M 23 wide-field with Vixen FL55SS:
?
NGC 6520 with Esprit 120:
?
NGC 6559 with 10” Newtonian:
?
NGC 6559 wide-field with Vixen FL55SS:
?
Overview on all results from Namibia 2022 including background information:
?
Important CEDIC conference news:
We are already preparing the CEDIC'24! Save the date!
Location: Linz (Austria)
Date: March 22-24 2024
?
Greetings from CEDIC-Team
Markus Blauensteiner
Bernhard Hubl
?
|
CEDIC Team goes Namibia - Part#10 (Highlights in Sgr)
Hello group,
‘Highlights in Sagittarius’ is the topic of part #10 of our image presentation, where we want to share the results from our astrophotography-trip to DeepSkySafaris in Namibia. The constellation Sagittarius offers such a wide range of interesting objects that you could spend many nights just looking at this constellation. On our trip we chose some of the great classics like the Lagoon Nebula Messier 8 or Messier 20 - a mixture of emission, reflection and dark nebula. Also the one or other open star cluster may not be missing and sometimes you should also look for something beside the known paths - then you will find treasures like NGC 6559.
?
M 8 with Esprit 120:
?
M 17 with Esprit 120:
?
M 20 with Esprit 120:
?
M 23 with Esprit 100:
?
M 23 wide-field with Vixen FL55SS:
?
NGC 6520 with Esprit 120:
?
NGC 6559 with 10” Newtonian:
?
NGC 6559 wide-field with Vixen FL55SS:
?
Overview on all results from Namibia 2022 including background information:
?
Important CEDIC conference news:
We are already preparing the CEDIC'24! Save the date!
Location: Linz (Austria)
Date: March 22-24 2024
?
Greetings from CEDIC-Team
Markus Blauensteiner
Bernhard Hubl
?
|
Re: QSI583: filter wheel not perfectly positioning the filter over the ccd window
Good morning, Nicola.? It’s very simple: take a cotton swap and dampen it (not soak it) with isopropyl alcohol - any percentage is fine - and gently swab the o-ring as much as is available, and the capstan, as well.?
My camera was only 2 years old when the issue developed, which was unusual, but it did solve the problem. I hope it will work for you.? ?- - Steve? Sent From Steve’s IPhone?
toggle quoted message
Show quoted text
On Jun 15, 2023, at 4:12 AM, NIcola Montecchiari <omega.centauri@...> wrote:
? Hi Steve,
thanks for the suggestions. Would you please explain to me the procedure you used to clean the rubber ring and the capstan roller?
Many thanks Nicola Hi Nicola, Several suggestions. The position of the filter wheel is determined by a particular barcode assigned to each filter slot, and read by an optical scanner, as is the case on my 683wsg. Is anything on the filter wheel scratched or marred in any way as to compromise this?
Also, the rotation of the filter wheel is accomplished by a motor and capstan pressured against the rubber ring around the edge of the filter wheel. I had this issue (don't know why - the camera is in an observatory), and fixed it by gently cleaning the rubber ring on the filter wheel, as well as the surface of the capstan roller against which it is pressed. This assured that good contact between the capstan and rubber ring was maintained.
That's all I can think of for now. Hope it helps a bit ?- - Steve
Hello All,
does anybody of you had issues with the filter wheel non perfectly positioning the filter over the ccd window?
The test I did was: 1) Opening the cover and positioning the filter number 1 over the window manually
2) by using a common software, moving all the filter carousel (LRGBH) one by one over the window 3) After coming back to the first filter again (L) the correct position is lost, i.e. is shifted of, let's say 1mm
A similar test was: 0) power off camera 1) move manually the?filter 1 correctly over the ccd window 2) power on camera 3) the camera goes into starting mode moving the carousel of a complete rotation. 4) The filter 1 does not come in the same place, but it is slightly "behind" the correct position
How can I adjust this?
Many thanks for your help Nicola -- Nicola
Sky Monsters -
Skype: betelgeuse368
-- Nicola
Sky Monsters -
Skype: betelgeuse368
|
Re: QSI583: filter wheel not perfectly positioning the filter over the ccd window
Hi Steve,
thanks for the suggestions. Would you please explain to me the procedure you used to clean the rubber ring and the capstan roller?
Many thanks Nicola
Hi Nicola, Several suggestions. The position of the filter wheel is determined by a particular barcode assigned to each filter slot, and read by an optical scanner, as is the case on my 683wsg. Is anything on the filter wheel scratched or marred in any way as to compromise this?
Also, the rotation of the filter wheel is accomplished by a motor and capstan pressured against the rubber ring around the edge of the filter wheel. I had this issue (don't know why - the camera is in an observatory), and fixed it by gently cleaning the rubber ring on the filter wheel, as well as the surface of the capstan roller against which it is pressed. This assured that good contact between the capstan and rubber ring was maintained.
That's all I can think of for now. Hope it helps a bit ?- - Steve
Hello All,
does anybody of you had issues with the filter wheel non perfectly positioning the filter over the ccd window?
The test I did was: 1) Opening the cover and positioning the filter number 1 over the window manually
2) by using a common software, moving all the filter carousel (LRGBH) one by one over the window 3) After coming back to the first filter again (L) the correct position is lost, i.e. is shifted of, let's say 1mm
A similar test was: 0) power off camera 1) move manually the?filter 1 correctly over the ccd window 2) power on camera 3) the camera goes into starting mode moving the carousel of a complete rotation. 4) The filter 1 does not come in the same place, but it is slightly "behind" the correct position
How can I adjust this?
Many thanks for your help Nicola -- Nicola
Sky Monsters -
Skype: betelgeuse368
-- Nicola
Sky Monsters -
Skype: betelgeuse368
|
Geof Lewis
AstroLenn
Pico de Paperis
Steve Solon