6" f9 Orion Ritchey-Chretien Astrograph

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John Donne United States of America
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6" f9 Orion Ritchey-Chretien Astrograph

#1

Post by John Donne »


I have acquired the RC recently.

I am wondering if anyone has experience with them.
SCOPES :ES127 f7.5, SW100 f9 Evostar, ES80 F6, LXD75 8" f10 SCT, 2120 10" f10 SCT, ES152 f6.5.
MOUNTS: SW AZ/EQ5, MEADE LXD75, CELESTRON CG4, Farpoint Parallelogram.
BINOCULARS: CL 10X30, Pentax 8X43, 25X100 Oberwerks.
EP: Many.

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I do not one day suddenly cease to be.
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Re: 6" f9 Orion Ritchey-Chretien Astrograph

#2

Post by Lady Fraktor »


Perhaps contact Tom (Ulteriormodem), he has experience with the Orion RCs
See Far Sticks: Antares Elita 103/1575, AOM FLT 105/1000, Bresser BV 127/1200, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS100/1000, Vixen SD115s/885
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Az/Alt: AYO Digi II/ Argo Navis, Stellarvue M2C/ Argo Navis
Tripods: Berlebach Planet (2), Uni 28 Astro, Report 372, TAL factory maple, Vixen ASG-CB90, Vixen AXD-TR102
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Re: 6" f9 Orion Ritchey-Chretien Astrograph

#3

Post by JayTee »


I have a TPO 6" f/9 RC. Unfortunately it has not seen as much use as I would love to give it, but I may be able to answer some of your questions.

Cheers
∞ Primary Scopes: #1: Celestron CPC1100 #2: 8" f/7.5 Dob #3: CR150HD f/8 6" frac
∞ AP Scopes: #1: TPO 6" f/9 RC #2: ES 102 f/7 APO #3: ES 80mm f/6 APO
∞ G&G Scopes: #1: Meade 102mm f/7.8 #2: Bresser 102mm f/4.5
∞ Guide Scopes: 70 & 80mm fracs -- The El Cheapo Bros.
∞ Mounts: iOptron CEM70AG, SW EQ6, Celestron AVX, SLT & GT (Alt-Az), Meade DS2000
∞ Cameras: #1: ZWO ASI294MC Pro #2: 662MC #3: 120MC, Canon T3i, Orion SSAG, WYZE Cam3
∞ Binos: 10X50,11X70,15X70, 25X100
∞ EPs: ES 2": 21mm 100° & 30mm 82° Pentax XW: 7, 10, 14, & 20mm 70°

Searching the skies since 1966. "I never met a scope I didn't want to keep."

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John Donne United States of America
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Re: 6" f9 Orion Ritchey-Chretien Astrograph

#4

Post by John Donne »


Thank you JT.

The bit I understand is that it is primarily for Astrophotography.
I do not do Astrophotography.

I am wondering if It can be efficiently used as a visual telescope.
Thank you for any insight you may be able to share with me.
Regards
Mark
SCOPES :ES127 f7.5, SW100 f9 Evostar, ES80 F6, LXD75 8" f10 SCT, 2120 10" f10 SCT, ES152 f6.5.
MOUNTS: SW AZ/EQ5, MEADE LXD75, CELESTRON CG4, Farpoint Parallelogram.
BINOCULARS: CL 10X30, Pentax 8X43, 25X100 Oberwerks.
EP: Many.

"I am more than a sum of molecules.
I am more than a sum of memories or events.
I do not one day suddenly cease to be.
I am, before memory.
I am, before event.
I am"
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Graeme1858 Great Britain
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Re: 6" f9 Orion Ritchey-Chretien Astrograph

#5

Post by Graeme1858 »


John Donne wrote: Thu Sep 23, 2021 5:23 am The bit I understand is that it is primarily for Astrophotography.
I do not do Astrophotography.

And there I was wondering if you had dipped your toe in the AP water Mark!

Regards

Graeme
______________________________________________
Celestron 9.25 f10 SCT, f6.3FR, CGX mount.
ASI1600MM Pro, ASI294MC Pro, ASI224MC
ZWO EFW, ZWO OAG, ASI220MM Mini.
APM 11x70 ED APO Binoculars.

https://www.averywayobservatory.co.uk/
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Re: 6" f9 Orion Ritchey-Chretien Astrograph

#6

Post by John Donne »


Graeme1858 wrote: Thu Sep 23, 2021 5:27 am
John Donne wrote: Thu Sep 23, 2021 5:23 am The bit I understand is that it is primarily for Astrophotography.
I do not do Astrophotography.

And there I was wondering if you had dipped your toe in the AP water Mark!

Regards

Graeme
Well...the thing is always a possibility. 😊
SCOPES :ES127 f7.5, SW100 f9 Evostar, ES80 F6, LXD75 8" f10 SCT, 2120 10" f10 SCT, ES152 f6.5.
MOUNTS: SW AZ/EQ5, MEADE LXD75, CELESTRON CG4, Farpoint Parallelogram.
BINOCULARS: CL 10X30, Pentax 8X43, 25X100 Oberwerks.
EP: Many.

"I am more than a sum of molecules.
I am more than a sum of memories or events.
I do not one day suddenly cease to be.
I am, before memory.
I am, before event.
I am"
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JayTee United States of America
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Re: 6" f9 Orion Ritchey-Chretien Astrograph

#7

Post by JayTee »


John Donne wrote: Thu Sep 23, 2021 5:23 am Thank you JT.

The bit I understand is that it is primarily for Astrophotography.
I do not do Astrophotography.

I am wondering if It can be efficiently used as a visual telescope.
Thank you for any insight you may be able to share with me.
Regards
Mark
Just about any Astrograph can be used as a visual scope if you can bring the eyepiece to focus. In this case with a diagonal and any of the normal range of eyepieces it does come to focus and can be used as a visual scope. I know this because I have done this. At least with my TPO. Since they're all made by GSO I don't think your results will be different.

Cheers
∞ Primary Scopes: #1: Celestron CPC1100 #2: 8" f/7.5 Dob #3: CR150HD f/8 6" frac
∞ AP Scopes: #1: TPO 6" f/9 RC #2: ES 102 f/7 APO #3: ES 80mm f/6 APO
∞ G&G Scopes: #1: Meade 102mm f/7.8 #2: Bresser 102mm f/4.5
∞ Guide Scopes: 70 & 80mm fracs -- The El Cheapo Bros.
∞ Mounts: iOptron CEM70AG, SW EQ6, Celestron AVX, SLT & GT (Alt-Az), Meade DS2000
∞ Cameras: #1: ZWO ASI294MC Pro #2: 662MC #3: 120MC, Canon T3i, Orion SSAG, WYZE Cam3
∞ Binos: 10X50,11X70,15X70, 25X100
∞ EPs: ES 2": 21mm 100° & 30mm 82° Pentax XW: 7, 10, 14, & 20mm 70°

Searching the skies since 1966. "I never met a scope I didn't want to keep."

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