My new slightly used Twilight ll mount

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StarBru
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My new slightly used Twilight ll mount

#1

Post by StarBru »

I've been wanting a Twilight ll mount ever since I saw bladekeeper's setup on Astronomy Forum some years ago! I couldn't resist when I saw one listed for $300 on CN. I drove the 50 minute drive to pick it up this morning.

Although my setup doesn't look as slick as other setups I have seen, I can't wait to attach my various scopes to it, and start observing! Below I have my Galileo 120mm f/8 reflector and Meade 80mm f/5 refractor. Balancing the 2 scopes was a little tricky, but I look forward to fixing that after tonight. Right now I just want to catch some starlight!
Attachments
IMG_20200516_192241502.jpg
Bruce
SCOPES: Two Meade 10" f/4 Schmidt Newtonians, Meade 127mm f/9.3 and AS80mm f/5 Refractors, Jason and Meade 60mm f/11.7 Refractors, Meade 2045D 4" f/10 SCT and ETX90-EC , Galileo 120mm f/8.3 Reflector.
ATM Projects: Home-built 8" f/2.9 Reflector, 65mm f/10 reflector, Binocular Sky-Scanner
MOUNTS/TRIPODS: ES Twilight ll mount, Meade LXD-55 Go-To, Galileo Tri-Pier Alt/AZ, JMI Megapod, two 60mm EQ mounts
BINOS: Celestron 20x80 & Tasco 10x50
EP's/Barlows: Meade 9.7mm, 12.4mm, 20mm, MIJ 26mm, 40ml Super-Plossls, two 14mm UWA 4000 Series, one smoothie and one with eyecup, Celestron 32mm plossl, BCO 18mm, Agena 27mm Starguider & BST 16mm flat field, Orion 9mm Expanse & 2" MIJ 50mm plossl, Televue 4mm & 10mm Radians, Televue 2.5x Barlow, Meade #140 triplet 2x barlow, 2x Shorty Barlow
COMA CORRECTOR: Televue Paracorr 1
CCD: Revolution Imager R2 that I am currently not using with lots of accessories
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Lady Fraktor
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#2

Post by Lady Fraktor »

A fine looking setup Bruce, I hope you get lots of chances to use it :)
🇸🇰
Proper Telescopes: Antares 105 f/15, Celestron 150 f/8, Stellarvue NHNGDX 80 f/6.9, TAL 100RS f/10, TS 102 f/11, UR 70 f/10, Vixen ED115s f/7.7
Mounts: Celestron AS-GT, Celestron CG-5 w/ Argo Navis & tracking motor, SLT w/ pier & tripod mods, Manfrotto 028b w/ SV M2C, Mantrotto 055Pro w/ 128RC, TAL MT1C, Vixen SXP w/ HAL-130 & half pier
Diagonal: 2" A-P Maxbright, 2" Baader Herschel Wedge (P), 2" Zeiss/ Baader Amici Prism (DX2), 2" Orion Amici Prism, 2" Stellarvue DX, 2" TeleVue EverBrite
Eyepieces: Antares to Zeiss
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StarBru
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#3

Post by StarBru »

Lady Fraktor wrote:
Sun May 17, 2020 5:47 am
A fine looking setup Bruce, I hope you get lots of chances to use it :)
Yes, I observed with it last night with the scopes you see in the photo. I made the mistake a few times of not having the mount locked down when switching out eyepieces and it's a good thing the scopes were connected securely because I had a few spin-arounds if you know what I mean? :o

The good news is I accidentally came across the Sombrero galaxy, seeing it for the very first time! I could see it easily with both scopes but did not observe the dark central lane. It actually stood out quite nice in my 80mm f/5 with my 10mm Radian. Believe it or not, I have tried to find it with my Go-To mounts with no success! I knew it was a galaxy at first but I had to look it up to identify it. I am looking forward tonight to observe with the mount using my 127mm refractor.

Clear skies!
Bruce
SCOPES: Two Meade 10" f/4 Schmidt Newtonians, Meade 127mm f/9.3 and AS80mm f/5 Refractors, Jason and Meade 60mm f/11.7 Refractors, Meade 2045D 4" f/10 SCT and ETX90-EC , Galileo 120mm f/8.3 Reflector.
ATM Projects: Home-built 8" f/2.9 Reflector, 65mm f/10 reflector, Binocular Sky-Scanner
MOUNTS/TRIPODS: ES Twilight ll mount, Meade LXD-55 Go-To, Galileo Tri-Pier Alt/AZ, JMI Megapod, two 60mm EQ mounts
BINOS: Celestron 20x80 & Tasco 10x50
EP's/Barlows: Meade 9.7mm, 12.4mm, 20mm, MIJ 26mm, 40ml Super-Plossls, two 14mm UWA 4000 Series, one smoothie and one with eyecup, Celestron 32mm plossl, BCO 18mm, Agena 27mm Starguider & BST 16mm flat field, Orion 9mm Expanse & 2" MIJ 50mm plossl, Televue 4mm & 10mm Radians, Televue 2.5x Barlow, Meade #140 triplet 2x barlow, 2x Shorty Barlow
COMA CORRECTOR: Televue Paracorr 1
CCD: Revolution Imager R2 that I am currently not using with lots of accessories
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Lady Fraktor
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#4

Post by Lady Fraktor »

That sounds like a fun and interesting night!
Maybe you should wear a helmet when viewing with this setup? :lol:

The sombrero is an interesting target so hopefully you get some good views tonight.
🇸🇰
Proper Telescopes: Antares 105 f/15, Celestron 150 f/8, Stellarvue NHNGDX 80 f/6.9, TAL 100RS f/10, TS 102 f/11, UR 70 f/10, Vixen ED115s f/7.7
Mounts: Celestron AS-GT, Celestron CG-5 w/ Argo Navis & tracking motor, SLT w/ pier & tripod mods, Manfrotto 028b w/ SV M2C, Mantrotto 055Pro w/ 128RC, TAL MT1C, Vixen SXP w/ HAL-130 & half pier
Diagonal: 2" A-P Maxbright, 2" Baader Herschel Wedge (P), 2" Zeiss/ Baader Amici Prism (DX2), 2" Orion Amici Prism, 2" Stellarvue DX, 2" TeleVue EverBrite
Eyepieces: Antares to Zeiss
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bladekeeper
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#5

Post by bladekeeper »

Looking good, Bruce!
Bryan
Scopes: Apertura AD12 f/5; Celestron C6-R f/8; ES AR127 f/6.4; Stellarvue SV102T f/7; iOptron MC90 f/13.3; Orion ST80A f/5; ES ED80 f/6; Celestron Premium 80 f/11.4; Celestron C80 f/11.4; Unitron Model 142 f/16; Meade NG60 f/10
Mounts: Celestron AVX; Bresser EXOS-2; ES Twilight I; ES Twilight II; iOptron Cube-G; AZ3/wood tripod; Vixen Polaris
Binoculars: Pentax PCF WP II 10×50, Bresser Corvette 10×50, Bresser Hunter 16×50 and 8×40, Garrett Gemini 12×60 LW, Gordon 10×50, Apogee 20×100

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Ylem
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#6

Post by Ylem »

Nice, and a reasonably local find :)
Clear Skies,
-Jeff :telescopewink:

A bunch of SCTs and MCTs scattered around the house and an Orion ST80.
A big box of Plossls :D
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StarBru
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#7

Post by StarBru »

Thanks, it was a very good deal for the money! I was able to connect my 80mm with rings, but I am still not 100% happy with it. I am loving the mount however!

Last night I set up the mount with my 127mm and 80mm fracs and found the Sombrero galaxy easily but could not find the same target with my 10SN reflector on a Dobson mount! After about an hour of searching with the Dob, I gave up until another night.
Attachments
IMG_20200517_193059754.jpg
Bruce
SCOPES: Two Meade 10" f/4 Schmidt Newtonians, Meade 127mm f/9.3 and AS80mm f/5 Refractors, Jason and Meade 60mm f/11.7 Refractors, Meade 2045D 4" f/10 SCT and ETX90-EC , Galileo 120mm f/8.3 Reflector.
ATM Projects: Home-built 8" f/2.9 Reflector, 65mm f/10 reflector, Binocular Sky-Scanner
MOUNTS/TRIPODS: ES Twilight ll mount, Meade LXD-55 Go-To, Galileo Tri-Pier Alt/AZ, JMI Megapod, two 60mm EQ mounts
BINOS: Celestron 20x80 & Tasco 10x50
EP's/Barlows: Meade 9.7mm, 12.4mm, 20mm, MIJ 26mm, 40ml Super-Plossls, two 14mm UWA 4000 Series, one smoothie and one with eyecup, Celestron 32mm plossl, BCO 18mm, Agena 27mm Starguider & BST 16mm flat field, Orion 9mm Expanse & 2" MIJ 50mm plossl, Televue 4mm & 10mm Radians, Televue 2.5x Barlow, Meade #140 triplet 2x barlow, 2x Shorty Barlow
COMA CORRECTOR: Televue Paracorr 1
CCD: Revolution Imager R2 that I am currently not using with lots of accessories
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pakarinen
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#8

Post by pakarinen »

Does it have the stock bearings or did the previous owner put in needle bearings? Just curious.
The lamp once out
Cool stars enter
The window frame.

~Soseki

Orion ST120, Meade AdventureScope ST80, Skywatcher 90mm Mak
Twilight 1 / Astro Devices encoders / Nexus II / Manfrotto 475B tripod
Nikon Aculon 10x50 binos
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Bigzmey
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#9

Post by Bigzmey »

Congrats on the new mount Bruce, looks good!
Scopes: Stellarvue: SV102 ED F7; Celestron: 9.25" EdgeHD F10, 8" SCT F10, 6" SCT F10, Omni XLT 150R Achro F5, Onyx 80ED F6.3; Meade: 80ST Achro F5.
Mounts: ES: Twilight I; Bresser: EXOS2; SW: SkyTee2, AzGTi; UA: MicroStar.
Binos: Orion: Little Giant II 15x70, WorldView 10x50, Nikon: Action EX 16x50 & 8x40.
EPs: Pentax: XWs & XFs; TeleVue: Delites, Panoptic & Plossls; ES: 68s; Vixen: SLVs; Baader: BCOs, Aspherics, Mark IV; Russell Optics: SuperPlossls.
Diagonals: Baader: BBHS silver mirror, Zeiss Spec T2 prism, Clicklock dielectric; TeleVue: Evebrite dielectric.
Filters: Lumicon: DeepSky, UHC, OIII, H-beta; Baader: Moon & SkyGlow, Contrast Booster, UHC-S; Astronomik: UHC, Orion: UltraBlock, SkyGlow.
Observing: DSOs: 1763 (Completed: M110, H1, H2. In progress: H3: 259, H2,500: 1336, S110: 77). Doubles: 1304, Comets: 15, Asteroids: 75
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StarBru
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#10

Post by StarBru »

pakarinen wrote:
Tue May 19, 2020 12:11 am
Does it have the stock bearings or did the previous owner put in needle bearings? Just curious.

It has the stock bearings as the owner said he wasn't handy enough to make mods on the mount! I am considering doing the azimuth needle bearings mod based on the posting of it on CN: https://www.cloudynights.com/topic/5498 ... -az-mount/. It could definitely use that or at least adding a plastic washer with some Super-Lube on the stock azimuth bearing first to see how that works. :smile:

I love the mount, but besides needing an improvement in the azimuth bearing, I would like to make a few other improvements as well that a lot of other Twilight ll owners have done:

1. I would like to add a counterweight system for when I don't want to attach a 2nd scope as mentioned in the CN link.
2. I would like to add a Kokusai Kohki Guide Handle so I don't have to push my scopes to move the mount. Better yet, I could make a handle for it,
so I don't need to spend $70 for the Kokusai handle!
3. I would prefer a couple more eyepiece holders on the mount, as the spreader on the mount only accommodates for two 1.25" and one 2". Once
again, I can easily make one out of wood.
4. The mount is not tall enough for my 127mm F/9.3 refractor and limits its use. I'm not sure what can be done to fix that other than adding a
longer pier mount extension.

It's a shame that ES hasn't made some of these improvements already, especially the azimuth needle bearing improvement as in my opinion, it's really needed and it could be added without raising the price. The other mods could all be offered by ES as add-ons. :twocents:
Bruce
SCOPES: Two Meade 10" f/4 Schmidt Newtonians, Meade 127mm f/9.3 and AS80mm f/5 Refractors, Jason and Meade 60mm f/11.7 Refractors, Meade 2045D 4" f/10 SCT and ETX90-EC , Galileo 120mm f/8.3 Reflector.
ATM Projects: Home-built 8" f/2.9 Reflector, 65mm f/10 reflector, Binocular Sky-Scanner
MOUNTS/TRIPODS: ES Twilight ll mount, Meade LXD-55 Go-To, Galileo Tri-Pier Alt/AZ, JMI Megapod, two 60mm EQ mounts
BINOS: Celestron 20x80 & Tasco 10x50
EP's/Barlows: Meade 9.7mm, 12.4mm, 20mm, MIJ 26mm, 40ml Super-Plossls, two 14mm UWA 4000 Series, one smoothie and one with eyecup, Celestron 32mm plossl, BCO 18mm, Agena 27mm Starguider & BST 16mm flat field, Orion 9mm Expanse & 2" MIJ 50mm plossl, Televue 4mm & 10mm Radians, Televue 2.5x Barlow, Meade #140 triplet 2x barlow, 2x Shorty Barlow
COMA CORRECTOR: Televue Paracorr 1
CCD: Revolution Imager R2 that I am currently not using with lots of accessories
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