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| en:ost:ccds:grunddaten [2022/06/24 09:16] – [Planetary/Guiding cameras] rhainich | en:ost:ccds:grunddaten [2024/05/25 18:21] (current) – [Planetary/Guiding cameras] rhainich |
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| ==== CMOS cameras ==== | ==== CMOS cameras ==== |
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| Our newcomer, the QHY 600M is a CMOS camera that was developed especially for astrophotography. It is our new deep-sky camera and offers among other things a full format sensor, a very high quantum efficiency, a very low readout noise and a very low dark current. For this camera we also have an off-axis-guide and a filter wheel with 9 positions. | Our main cameras are CMOS cameras designed specifically for astrophotography. For deep sky imaging we use two QHY 600M, which offer a full frame sensor, very high quantum efficiency, very low readout noise and very low dark current. For these cameras, we also have an off-axis guide, a 9-position filter wheel, and a 7-position filter wheel. |
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| | As main camera for our two [[en:ost:spektrograph:grunddaten| spectrographs]] serves a QHY 268M. Furthermore we have a QHY 485C and a ZWO ASI174. |
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| ==== CCD Cameras ==== | ==== CCD Cameras ==== |
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| Furthermore, four CCD cameras (ST-7, ST-8, STF-8300M, ST-i) from SBIG (//Santa Barbara Instrument Group//) and one CCD camera (Skyris 445C) from //Celestron// are available. | Furthermore, four older CCD cameras (ST-7, ST-8, STF-8300M, ST-i) from SBIG (//Santa Barbara Instrument Group//) and one CCD camera (Skyris 445C) from //Celestron// are available. |
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| The ST-7 and ST-8 are deep-sky cameras, but due to their relatively small field of view they are rarely used. The STF-8300M is used as main camera for our two [[de:ost:spektrograph:grunddaten|Spektrographs]]. | The ST-7, ST-8, and STF-8300M are deep-sky cameras, but due to their relatively small field of view they are rarely used currently. |
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| The ST-i, the QHY 485C, and the Skyris 445C are "planetary cameras" which allow very short exposure times. They are mainly used for solar observations or as guiding cameras (see e.g. [[de:ost:ccds:ccdops#Guiding|here]] or [[de:ost:ccds:maximdl#Guiding|here]]) in connection with the QHY 600M and the spectrographs. | The ST-i, the QHY 485C, and the Skyris 445C are "planetary cameras" which allow very short exposure times. They are mainly used for solar observations or as guiding cameras (see e.g. [[de:ost:ccds:ccdops#Guiding|here]] or [[de:ost:ccds:maximdl#Guiding|here]]) in connection with the QHY 600M and the spectrographs. |
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| \\ | All cameras can be controlled via [[de:ost:ccds:maximdl| Maxim DL]]. For the SBIG cameras [[de:ost:ccds:ccdops| CCDOPS]] is also available as control software. We have dedicated a separate article to the [[en:ost:ccds:setup|assembly]] of some cameras. |
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| All cameras can be controlled via [[de:ost:ccds:maximdl| Maxim DL]]. For the SBIG cameras [[de:ost:ccds:ccdops| CCDOPS]] is also available as control software. We have dedicated a separate article to the [[en:ost:ccds:setup|assembly]] of the cameras. | |
| ==== Basic data ==== | ==== Basic data ==== |
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| === Main cameras === | === Main cameras === |
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| | [{{ :ost:ccds:qhy268m.jpg?300| Our QHY 268 }}] |
| |< 100% 19%>| | |< 100% 27%>| |
| | | **ST-7** | **ST-8** | **STF-8300** | **QHY 600M** | | | | **QHY 600M (2x)** | **QHY 268M** | |
| | **Model number** | ST-7XME-D | ST-8XME | STF-8300M | QHY 600M PRO-L | | | **Model number** | QHY 600M PRO-L & QHY 600M PH | QHY 268M-PH | |
| | **pixel size** | 9 $\mu \text{m}$ x 9 $\mu \text{m}$ | 9 $\mu \text{m}$ x 9 $\mu \text{m}$ | 5.4 $\mu \text{m}$ x 5.4 $\mu \text{m}$ | 3.76 $\mu \text{m}$ x 3.76 $\mu \text{m}$ | | | **pixel size** | 3.76 $\mu \text{m}$ x 3.76 $\mu \text{m}$ | 3.76 $\mu \text{m}$ x 3.76 $\mu \text{m}$ | |
| | **Number of pixels** | 765 x 510 | 1530 x 1020 | 3326 x 2504 | 9576 x 6388 | | | **Number of pixels** | 9576 x 6388 | 6280 x 4210 | |
| | **Total size of the chip** | 6.9 mm x 4.6 mm | 13.8 mm x 9.2 mm | 17.96 mm x 13.52 mm | 36 mm x 24 mm | | | **Total size of the chip** | 36 mm x 24 mm | 23.45 mm x 15.7 mm | |
| | **Field of view with the CDK20** | 6.9’ x 4.6’ | 13.7’ x 9.2’ | 17.9’ x 13.5’ | 35.8’ x 23.4’ | | | **Field of view with the CDK20** | 35.8’ x 23.4’ | 23.3’ x 15.6’ | |
| | **Sampling** | 1.9 Pixel per arcsec | 1.9 Pixel per arcsec | 3.1 Pixel per arcsec | 4.5 Pixel per arcsec | | | **Sampling** | 4.5 Pixel per arcsec | 4.5 Pixel per arcsec | |
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| === Planetary/Guiding cameras === | === Planetary/Guiding cameras === |
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| | [{{ :ost:ccds:qhy485c.jpg?300| Our QHY 485C }}] |
| | |< 100% 27%>| |
| | | | **Skyris 445** | **QHY 485C** | **ST-i** | **ZWO ASI174** | **ZWO ASI220** | |
| | | **Model number** | Skyris 445C | QHY-5-III-485C | ST-i monochrome | ZWO ASI174MM Mini Mono | ZWO ASI220MM Mini Mono | |
| | | **pixel size** | 3.75 $\mu \text{m}$ x 3.75 $\mu \text{m}$ | 2.9 $\mu \text{m}$ x 2.9 $\mu \text{m}$ | 7.4 $\mu \text{m}$ x 7.4 $\mu \text{m}$ | 5.86 $\mu \text{m}$ x 5.86 $\mu \text{m}$ | 4 $\mu \text{m}$ x 4 $\mu \text{m}$ | |
| | | **Number of pixels** | 1280 x 960 | 3864 x 2180 | 648 x 486 | 1936 x 1216 | 1920 x 1080 | |
| | | **Total size of the chip** | 6.26 mm x 5.01 mm | 11.2 mm x 6.3 mm | 4.8 mm x 3.6 mm | 11.3 mm x 7.1 mm | 7,68 mm x 4,32 mm | |
| | | **Field of view with the CDK20** | 6.2’ x 5.0’ | 11.2’ x 6.3’ | 4.8’ x 3.6’ | 11.2’ x 7.1’ | | |
| | | **Sampling** | 3.4 Pixel per arcsec | 5.8 Pixel per arcsec | 2.3 Pixel per arcsec | 2.9 Pixel per arcsec | | |
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| | === Cameras that are no longer in daily use === |
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| [{{ :ost:ccds:ccd_klein.jpg?300| Our SBIG ST-8 }}] | [{{ :ost:ccds:ccd_klein.jpg?300| Our SBIG ST-8 }}] |
| |< 100% 27%>| | |< 100% 27%>| |
| | | **Skyris 445** | **QHY 485C** | **ST-i** | | | | **ST-7** | **ST-8** | **STF-8300** | |
| | **Model number** | Skyris 445C | QHY-5-III-485C | ST-i monochrome | | | **Model number** | ST-7XME-D | ST-8XME | STF-8300M | |
| | **pixel size** | 3.75 $\mu \text{m}$ x 3.75 $\mu \text{m}$ | 2,9 $\mu \text{m}$ x 2,9 $\mu \text{m}$ | 7.4 $\mu \text{m}$ x 7.4 $\mu \text{m}$ | | | **pixel size** | 9 $\mu \text{m}$ x 9 $\mu \text{m}$ | 9 $\mu \text{m}$ x 9 $\mu \text{m}$ | 5.4 $\mu \text{m}$ x 5.4 $\mu \text{m}$ | |
| | **Number of pixels** | 1280 x 960 | 3864 x 2180 | 648 x 486 | | | **Number of pixels** | 765 x 510 | 1530 x 1020 | 3326 x 2504 | |
| | **Total size of the chip** | 6.26 mm x 5.01 mm | 11,2 mm x 6,3 mm | 4.8 mm x 3.6 mm | | | **Total size of the chip** | 6.9 mm x 4.6 mm | 13.8 mm x 9.2 mm | 17.96 mm x 13.52 mm | |
| | **Field of view with the CDK20** | 6.2’ x 5.0’ | 11,2’ x 6,3’ | 4.8’ x 3.6’ | | | **Field of view with the CDK20** | 6.9’ x 4.6’ | 13.7’ x 9.2’ | 17.9’ x 13.5’ | |
| | **Sampling** | 3.4 Pixel per arcsec | 2,2 Pixel per arcsec | 2.3 Pixel per arcsec | | | **Sampling** | 1.9 Pixel per arcsec | 1.9 Pixel per arcsec | 3.1 Pixel per arcsec | |
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| === QHY 600M === | === QHY 600M === |
| For the new QHY 600M we have installed the following filters in the filter wheel: | We have two filter wheels for the QHY 600Ms. The first is a QHY CFW3-XL with the following Bessel filters: |
| | ^ Filter position | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |
| | ^ Filter | H_alpha | OIII | SII | U | B | V | R | I | Clear | |
| | ^ Comment | Narrowband | Narrowband | Narrowband | Broadband | Broadband | Broadband | Broadband | Broadband | | |
| | The transmission curves of the UBVRI filters can be found on the website of //Baader Planetarium//: [[https://assets.baader-planetarium.com/media/extendware/ewimageopt/media/inline/63/5/ubvri-bessel-filtersatz-photometrisch-1f1.jpg|Filter Transmission]]. The filter curves of the bandpass filters are similar to those of the STF-8300. |
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| | **Filter position** | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | | The second is a QHY CFW3-L with the following SLOAN/SDSS filters: |
| | **Filter** | H_alpha | OIII | SII | U | B | V | R | I | Clear | | ^ Filter position | 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| | **Comment** | narrow band | narrow band | narrow band | broad band | broad band | broad band | broad band | broad band | | ^ Filter | u' | g' | r' | i' | z-s' | y' | Clear | |
| | ^ Comment | Wideband | Wideband | Wideband | Wideband | Wideband | Wideband | | |
| | The transmission curves of the ugriz' filters can be found on the website of //Baader Planetarium//: [[https://assets.baader-planetarium.com/media/extendware/ewimageopt/media/inline/68/6/sloan-sdss-ugriz-filtersatz-photometrisch-09b.jpg|Filter Transmission]]. |
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| | We also have a [[https://www.baader-planetarium.com/de/baader-ufc-(universal-filter-changer).html | UFC-filter-changing-system]] for our RASA 11 V2, which can be equipped with 50mmx50mm square filters. Currently we have a complete set of SLOAN/SDSS filters (see above) and H-alpha, O-III, S-II [[https://assets.baader-planetarium.com/media/extendware/ewimageopt/media/inline/4a/b/35-4nm-f-3-ultra-highspeed-filtersatz-cmos-optimiert-h-alpha-o-iii-s-ii-383.jpg | ultra highspeed filter]]. |
| === ST-7 & ST-8 === | === ST-7 & ST-8 === |
| A filter wheel with the following filters can be attached to the ST-7 and ST-8: | A filter wheel with the following filters can be attached to the ST-7 and ST-8: |
| ====== DSLR ====== | ====== DSLR ====== |
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| For short time exposures and lucky imaging there is the digital (single) reflex camera (DSLR): Canon EOS 700D. It has been optimized for amateur astronomers by //Baader Planetarium// by changing the used filters. The transmission properties of the original Canon filters in comparison to the optimized ones can be found at the Baader web page [[http://www.baader-planetarium.de/sektion/s45/bilder/vergleich_400d_baader_bcf_gross.jpg|click to view the image]]. | For short time exposures and lucky imaging there is also a digital (single) reflex camera (DSLR): Canon EOS 700D. It has been optimized for amateur astronomers by //Baader Planetarium// by changing the used filters. The transmission properties of the original Canon filters in comparison to the optimized ones can be found at the Baader web page [[http://www.baader-planetarium.de/sektion/s45/bilder/vergleich_400d_baader_bcf_gross.jpg|click to view the image]]. |
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| ==== Basic data ==== | ==== Basic data ==== |