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From: [email protected] < [email protected]> On Behalf Of Geof Lewis via groups.io Sent: Thursday, December 12, 2024 4:29 AM To: [email protected]Subject: Re: [QSI-CCD] NGC 7380 image ? As Steve said, that’s beautiful.
That's a beauty, Bruce - very well-done, mate! ? NGC 7380 is an open cluster in Cepheus, bordered by the well-known ?"wizard" emission nebula.? The hot young stars formed less than 5M years ago and have since ionized the surrounding hydrogen gas.? Their stellar winds have created a void in the surrounding dust and gas and have shaped many of the complex structures seen in the adjacent wizard nebula.? The nebula clearing process creates density fluctuations that trigger new star formation. ?14 variable stars in this area have been identified as pre-main sequence, meaning they have not yet reached their future state as stable, hydrogen-burning stars.
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The close-up image was captured during a 4-night period in November-December 2024 using a 12.5" PlaneWave scope and a QSI-640ws camera at f/8 from SkyPi ?Remote Observatories.? Total LRGB integration was 16.5 hours.
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Bruce,
As Steve said, that’s beautiful.
Regards,
Geof
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That's a beauty, Bruce - very well-done, mate!
?- - Steve
NGC 7380 is an open cluster in Cepheus, bordered by the well-known ?"wizard" emission nebula.? The hot young stars formed less than 5M years ago and have since ionized the surrounding hydrogen gas.? Their stellar winds have created a void in
the surrounding dust and gas and have shaped many of the complex structures seen in the adjacent wizard nebula.? The nebula clearing process creates density fluctuations that trigger new star formation. ?14 variable stars in this area have been identified
as pre-main sequence, meaning they have not yet reached their future state as stable, hydrogen-burning stars.
?
The close-up image was captured during a 4-night period in November-December 2024 using a 12.5" PlaneWave scope and a QSI-640ws camera at f/8 from SkyPi ?Remote Observatories.? Total LRGB integration was 16.5 hours.
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Thanks for looking,
Bruce W.
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From: [email protected] < [email protected]> On Behalf Of Steve Solon via groups.io Sent: Wednesday, December 11, 2024 1:19 PM To: [email protected]Subject: Re: [QSI-CCD] NGC 7380 image ? That's a beauty, Bruce - very well-done, mate! ? NGC 7380 is an open cluster in Cepheus, bordered by the well-known ?"wizard" emission nebula.? The hot young stars formed less than 5M years ago and have since ionized the surrounding hydrogen gas.? Their stellar winds have created a void in the surrounding dust and gas and have shaped many of the complex structures seen in the adjacent wizard nebula.? The nebula clearing process creates density fluctuations that trigger new star formation. ?14 variable stars in this area have been identified as pre-main sequence, meaning they have not yet reached their future state as stable, hydrogen-burning stars.
?
The close-up image was captured during a 4-night period in November-December 2024 using a 12.5" PlaneWave scope and a QSI-640ws camera at f/8 from SkyPi ?Remote Observatories.? Total LRGB integration was 16.5 hours.
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That's a beauty, Bruce - very well-done, mate! ?- - Steve
NGC 7380 is an open cluster in Cepheus, bordered by the well-known ?"wizard" emission nebula.? The hot young stars formed less than 5M years ago and have since ionized the surrounding hydrogen gas.? Their stellar winds have created a void in the surrounding dust and gas and have shaped many of the complex structures seen in the adjacent wizard nebula.? The nebula clearing process creates density fluctuations that trigger new star formation. ?14 variable stars in this area have been identified as pre-main sequence, meaning they have not yet reached their future state as stable, hydrogen-burning stars.
?
The close-up image was captured during a 4-night period in November-December 2024 using a 12.5" PlaneWave scope and a QSI-640ws camera at f/8 from SkyPi ?Remote Observatories.? Total LRGB integration was 16.5 hours.
?
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Thanks for looking,
Bruce W.
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NGC 7380 is an open cluster in Cepheus, bordered by the well-known ?"wizard" emission nebula. ?The hot young stars formed less than 5M years ago and have since ionized the surrounding hydrogen gas. ?Their stellar winds have created a void in the surrounding dust and gas and have shaped many of the complex structures seen in the adjacent wizard nebula. ?The nebula clearing process creates density fluctuations that trigger new star formation. ?14 variable stars in this area have been identified as pre-main sequence, meaning they have not yet reached their future state as stable, hydrogen-burning stars.
?
The close-up image was captured during a 4-night period in November-December 2024 using a 12.5" PlaneWave scope and a QSI-640ws camera at f/8 from SkyPi ?Remote Observatories. ?Total LRGB integration was 16.5 hours.
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Thanks for looking,
Bruce W.
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QSI 683 swg dessicant recharge
Hello,
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Do QSI sell dessicant for replacement?
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Any help is appreciated
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Not sure if this is what you were looking for, I don't have a 6120 myself but AFAIK they only have one gain setting.
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According to the chart the 6120 gain factor is 0.13e-/ADU and typical read noise is 4e-
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HTH
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Will.
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Hi there,
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what is the gain offset ( in ADU) on the qsi 6120 in low gain mode? Trying to calculate the "swamping the read noise".
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Thanks?
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Thank you, Bruce. Yes, it was one of my shorter integrations from a while back. I usually try to get 30-40 hours of data, depending on weather systems, etc., as you well know.? ?- - Steve
Nice image, Steve, well done.? This is one of my favorite galaxy targets but it definitely requires a reasonably long integration time.
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Bruce
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Nice image, Steve, well done.? This is one of my favorite galaxy targets but it definitely requires a reasonably long integration time.
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Bruce
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Thanks for the kind feedback, guys, much appreciated.
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Bruce
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Hi all, It must be the "M-74" season - many beautiful captures. Hopefully, this is no different.?This was taken from Mare Stellarae Observatory in Rio Rancho, New Mexico, using a Celestron EdgeHD 2800mm f/l reflector and a 683wsg-8 with Optolong LRGB filters. The total integration was 14 hours over several nights. Appreciate the peek. Clear, smokeless skies to all. ?- - Steve
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This is certainly a beauty, Bruce - wonderful work, and very nicely done, mate ?- - Steve
Bruce,
What a fabulous image of this striking face on spiral galaxy.
Regards,
Geof
M74, is a nearly face-on "grand design" spiral galaxy, so-called because of the strongly defined, symmetric spiral arms that extend around its core.? It became known to visual observers as the "phantom galaxy" because of its low
surface brightness and relatively large size.? It is somewhat smaller than our Milky Way galaxy and is located about 30M light-years away in the direction of the constellation Pisces.
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The image was captured during a 5-night period in October 2024 under very good sky conditions using a 12.5" PlaneWave scope and a QSI-640ws camera at f/8 from SkyPi ?Remote Observatories.? Total LRGB integration was 20.5 hours.?
This is my third try at this target over a 14-year period - hopefully, the 3rd time is the charm. :-)
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Thanks for looking,
Bruce W.
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Bruce,
What a fabulous image of this striking face on spiral galaxy.
Regards,
Geof
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M74, is a nearly face-on "grand design" spiral galaxy, so-called because of the strongly defined, symmetric spiral arms that extend around its core. ?It became known to visual observers as the "phantom galaxy" because of its low
surface brightness and relatively large size.? It is somewhat smaller than our Milky Way galaxy and is located about 30M light-years away in the direction of the constellation Pisces.
?
The image was captured during a 5-night period in October 2024 under very good sky conditions using a 12.5" PlaneWave scope and a QSI-640ws camera at f/8 from SkyPi ?Remote Observatories. ?Total LRGB integration was 20.5 hours.?
This is my third try at this target over a 14-year period - hopefully, the 3rd time is the charm. :-)
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Thanks for looking,
Bruce W.
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Great work Bruce. I envy your dark skies.?
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Love the color!
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A beautiful image of a magnificent galaxy, Bruce.
Clear skies, Kevin
From: "bw via groups.io" <bw_msg01@...> To: "QSI-CCD" < [email protected]> Sent: Friday, November 8, 2024 9:13:02 PM Subject: [QSI-CCD] M74 image
M74, is a nearly face-on "grand design" spiral galaxy, so-called because of the strongly defined, symmetric spiral arms that extend around its core. ?It became known to visual observers as the "phantom galaxy" because of its low surface brightness and relatively large size.? It is somewhat smaller than our Milky Way galaxy and is located about 30M light-years away in the direction of the constellation Pisces.
?
The image was captured during a 5-night period in October 2024 under very good sky conditions using a 12.5" PlaneWave scope and a QSI-640ws camera at f/8 from SkyPi ?Remote Observatories. ?Total LRGB integration was 20.5 hours.? This is my third try at this target over a 14-year period - hopefully, the 3rd time is the charm. :-)
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Thanks for looking,
Bruce W.
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A very nice shot, Bruce! ? Von: [email protected] [mailto:[email protected]] Im Auftrag von bw via groups.io
Gesendet: Samstag, 9. November 2024 03:13
An: [email protected]
Betreff: [QSI-CCD] M74 image ? M74, is a nearly face-on "grand design" spiral galaxy, so-called because of the strongly defined, symmetric spiral arms that extend around its core. ?It became known to visual observers as the "phantom galaxy" because of its low surface brightness and relatively large size.? It is somewhat smaller than our Milky Way galaxy and is located about 30M light-years away in the direction of the constellation Pisces.
? The image was captured during a 5-night period in October 2024 under very good sky conditions using a 12.5" PlaneWave scope and a QSI-640ws camera at f/8 from SkyPi ?Remote Observatories. ?Total LRGB integration was 20.5 hours.? This is my third try at this target over a 14-year period - hopefully, the 3rd time is the charm. :-)
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M74, is a nearly face-on "grand design" spiral galaxy, so-called because of the strongly defined, symmetric spiral arms that extend around its core. ?It became known to visual observers as the "phantom galaxy" because of its low surface brightness and relatively large size.? It is somewhat smaller than our Milky Way galaxy and is located about 30M light-years away in the direction of the constellation Pisces.
?
The image was captured during a 5-night period in October 2024 under very good sky conditions using a 12.5" PlaneWave scope and a QSI-640ws camera at f/8 from SkyPi ?Remote Observatories. ?Total LRGB integration was 20.5 hours.? This is my third try at this target over a 14-year period - hopefully, the 3rd time is the charm. :-)
?
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Thanks for looking,
Bruce W.
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Unglue temperature sensor ?
Hi,
I remove the cover of my QSI 583 WSG, and I discover that something that looks like a temperature sensor is unglue from the back of the camera.
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Last night, I have a -29c at startup of the camera, but it go back to normal ... And this morning I discover that...
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Does someone have an idea what is that ?
What can I do to fix it ?
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Thanks for your response.
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Best regards?
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Thanks for all the kind remarks, guys, very much appreciated.
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Cheers,
Bruce
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Geof Lewis
Steve Solon
WILL B