150P-DS initial testing with new secondary spider (Lee)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Crescent Nebula · NGC 6888 · Sh2-105

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150P-DS initial testing with new secondary spider

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150P-DS initial testing with new secondary spider

I'd been thinking for a while about getting a CNC machined secondary spider from Backyard Universe but the potential hassle of ordering from Europe these days had put me off. When I saw their products pop up at First Light Optics, it didn't take long to make a purchase.

Fairly straight forward to fit and a substantial difference to the default version - both for quality, accuracy and rigidity. All obvious points given the low cost of the scope and relatively high cost of the new spider. The lack of movement of the secondary holder/spider during collimation was noticeable.

I've temporarily moved my 533MM onto this scope for its first narrowband action.

It may still need some minor tweaks, but the skies cleared just enough this week to give it a quick test. I'm looking forward to astro dark returning soon.

Thanks for looking.

Final
Original
B
C
D

B

Title: IC1396 Trunk - 3 x 300s (15min)

Uploaded: ...

C

Title: New spider in place

Uploaded: ...

D

Title: Side by side comparison of original spider

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	8267787
PixInsight job	ZJIJPO7RZWIAPE92HA02I9ZU83MEBH4T
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h12m09s.55
RA (top/left)	20h14m25s.83
RA (top/right)	20h14m33s.92
RA (bottom/right)	20h09m51s.34
RA (bottom/left)	20h09m46s.83

Dec (center)	+38°21′20″.7
Dec (top/left)	+37°53′08″.6
Dec (top/right)	+38°48′10″.8
Dec (bottom/right)	+38°49′26″.1
Dec (bottom/left)	+37°54′22″.4

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150P-DS initial testing with new secondary spider

150P-DS initial testing with new secondary spider

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150P-DS initial testing with new secondary spider

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