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Pier 12

RC Optical Systems (RCOS) 12.5" Ritchey Chrétien

Telescope

RCOS are synonymous with quality and after installing this one I can see why, no corners have been cut at all in the build of this Ritchey Chrétien 12.5” telescope. It’s built like a tank has all the nice touches from front focusing, auto fans to dew control and proper honeycomb flocking, on top of this it has 1/20th PV Zerodour mirrors.

Pier-12 is not fast and typical RC speed at F/9, however when combined with our skies 1200 seconds is generaly as long a sub you will ever have to do even for narrowband. so unless the object is super super dim there is no need for 1800s subs!

Camera

FLI PL-16803 Mono CCD with class 2 sensor, coupled to a FLI 2-7 wheel and Astrodon 50mm unmounted LRGB & narrowband HA OII SII 5nm + Baader HB filters.

All large glass Kodak sensors (apart from class 0) will have hot pixels and column defects which are completly normal, when you combine dithering, the supplied calibration frames and good user software calibration practices they are a none issue in the final image.

Equipment List

Telescope	RCOS-12.5 12.5" F/9 Ritchey Chrétien
Mount	10 Micron GM2000
Camera	FLI PL-16803 Mono CCD - 2x2 Binned
Filter Wheel	FLI Centerline
Filters	Astrodon 50mm LRGB Ha-5nm o3-3nm s2-5nm Baader HB 8.5nm
Guide Camera	Lodestar 2 - 2x2 Binned
Guider	OAG Integrated
Focuser	RCOS Electronic Front Focusing
Power & Dew Control	Mount Hub Pro V4
Flattener	RCOS Dedicated Field Flattener

KAI-16803

Front illumiated Sensor
36.8 x 36.8mm
4096x4096pixels
9µm

Bayer Matrix Parameters

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0.72° x 0.72°
1.3 "/px @ 2x2 Binning
2853mm Focal Length
F/9
30º Imaging Horizon Limits
Camera Position Angle: 260°

Recommended sub lengths

Broadband Imaging

Filter	Bright	Dim
Clear	n/a	n/a
Lum	180-300s	600-900s
Red	180-300s	600-900s
Green	180-300s	600-900s
Blue	180-300s	600-900s

Narrowband Imaging

Filter	Bright	Dim
Ha 5nm	300-900s	900-1200s
Hb	300-900s	900-1200s
O3 5nm	300-900s	900-1200s
S2 5nm	300-900s	900-1200s
N2 3nm	n/a	n/a

Imaging subjects with brighter cores will of course require shorter sub lengths for HDR, your personal experience will be needed to gauge this yourself.
Please remember this is only a guide above, we are just trying to help you have the best experience possible remote imaging with Roboscopes.
Roboscopes supply the site and control the equipment but you choose everything else from filters, object/co-ordinates to sub lengths. So you need to exercise due diligence and experience when booking because if you fill the booking form out with incorrect details then you will get precisely that.
It is not Roboscopes responsibility to check your detailed requirements after you have booked.

Filter weights

Get accurate star colours with our filter weights

	Filter	Weight
	Red	TBA
	Green	TBA
	Blue	TBA

Calibration Files

This pier has a FREE calibration library, this includes a dark library that correlates to the most common subs lengths used, see below

30s Darks
45s Darks
60s Darks
120s Darks
180s Darks
240s Darks
300s Darks
600s Darks
900s Darks
1200s Darks
Bias Frames
Flat Frames - L, R, G, B, Ha, o3, S2

If you choose more individual sub lengths eg 550s, then darks are not included in the price and are taken for you on an individual basis. Please add darks to your imaging run in checkout.

Field of view examples

M16 The Eagle Nebula

M31 The Andromeda Galaxy

M42 The Orion Nebula

Proud to use

FLI
656 Imaging
10 Micron
Planewave
ZWO

Resources

Company Details:

Roboscopes

802 Kingsbury Road
Birmingham
B24 9PS
United Kingdom

Pier 12

RC Optical Systems (RCOS) 12.5" Ritchey Chrétien

Telescope

Camera

Telescope

Camera

Mount

Telescope

Camera