Western Serpens double stars on June 14

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John Fitzgerald
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Western Serpens double stars on June 14


Post by John Fitzgerald »

The evening of June 14, 2021, I observed the following double stars in Serpens with my 6" f/8 apo on a pier in the fully manual ExploraDome:

STF 1917 m 9.8,9.9, sep 2.4" at PA 233 degrees. This was a clear split at 173x, even better at 203x with 6mm TV Delos.

STF 1919 m 6.7,7.4, sep 23.4" at PA 11. Fine, wide double, at 61x, with a ES 20mm-68 eyepiece.

STF 1923 m m 9.1,10.1, sep 4.8" at PA 11. Great view at 173x with 7mm TV Delite.

STF 1930 m 5.1,10.1, sep 11.1" at PA 36. Great unequal double, pretty sight, using TV Delite 9mm for 135x, even better at 173x.

STF 1931 m 7.2, 8.1, sep 13.1" at PA 166. Nice view at 61x.

STF 1943 m 9.3, 9.6, sep 5.1" at PA 147. Viewed at 135x.

STF 1950 m 8.1,9.2, sep 3.4" at PA 252. Viewed at 135x.

STF 1953 m 9.6,10.6, sep 6.7" at PA 252. Viewed at 135x and 173x.

Delta (13 Ser) STF 1954 m 4.2,5.2 sep 4.0" at PA 173. This is a "showpiece" double at 135x.

I find that using a little higher magnification than necessary, darkening the field a bit, produces more pleasing results.
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Re: Western Serpens double stars on June 14


Post by notFritzArgelander »

Yes, a darker field is always a good thing.
Scopes: Refs: Orion ST80, SV 80EDA f7, TS 102ED f11 Newts: Z12 f5; Cats: VMC110L, Intes MK66,VMC200L f9.75 EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, Plossl 32-8mm. Mixed brand Masuyama/Astroplans Binoculars: Nikon Aculon 10x50, Celestron 15x70, Baader Maxbright. Mounts: Star Seeker III, Vixen Porta II, Celestron CG5, Orion Sirius EQG
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Re: Western Serpens double stars on June 14


Post by helicon »

Congrats on winning the Visual Report of the Day John for your fine report on double star observing in Serpens.

Various scopes, 10" Zhumell Dob f/4.9, ES AR152 f/6.5, AWB 5.1" Onesky newt, Oberwerk 25x100 binos, two eyeballs. Camera: ZWO ASI 120
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Re: Western Serpens double stars on June 14


Post by Makuser »

Hello John. You "snaked" out a lot of nice double stars in Serpens with your 6" f/8 apo scope. Thanks for the very nice and commentated observing report John, and congratulations on winning the TSS VROD Award today.
- Marshall
Sky-Watcher 90mm f/13.9 Maksutov-Cassegrain on motorized Multimount
Orion Astroview 120ST f/5 Refractor on EQ3 mount
Celestron Omni XLT150R f/5 Refractor on CG4 mount with dual axis drives.
Orion 180mm f/15 Maksutov-Cassegrain on CG5-GT Goto mount.
Orion XT12i 12" f/4.9 Dobsonian Intelliscope.
Kamakura 7x35 Binoculars and Celestron SkyMaster 15x70 Binoculars. ZWO ASI120MC camera.
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Re: Western Serpens double stars on June 14


Post by Bigzmey »

Nice catches John! I agree about the darker field. Under my home Bortle 6 sky 2mm exit pupil produces the richest star colors.

Permanently installed 6" APO is my dream setup for doubles. Not gonna happen anytime soon. :lol:
Scopes: Stellarvue: SV102 ED F7; Celestron: 9.25" EdgeHD F10, 8" SCT F10, Omni XLT 150R Achro F5, Onyx 80ED F6.3; Meade: 80ST Achro F5.
Mounts: SW: SkyTee2, AzGTi; iOptron: AZMP; ES: Twilight I; Bresser: EXOS2; UA: MicroStar; Farpoint: UBM.
Binos: Celestron (Vixen) Giant 20x80; Orion: Binoviewers, Little Giant II 15x70, WorldView 10x50, Nikon: Action EX 16x50 & 8x40.
EPs: Pentax: XWs, XL & 2xXFs; TeleVue: Delites, Panoptic & Plossls; ES: 68, 62; Vixen: 2xSLVs; Baader: 2xBCOs, Aspherics, Mark IV, Meade: Plossls.
Diagonals: Baader: BBHS silver mirror, Zeiss Spec T2 prism, Clicklock dielectric; TeleVue: Evebrite dielectric; AltairAstro: Positive lock prism.
Filters: Lumicon: DeepSky, UHC, OIII, H-beta; Baader: Moon & SkyGlow, Contrast Booster, UHC-S, 6-color set; Astronomik: UHC, Orion: UltraBlock.
Observing: DSOs: 2385 (Completed: Messier, Herschel 1, 2, 3. In progress: H2,500: 1888, S110: 77). Doubles: 1494, Comets: 21, Asteroids: 98
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Re: Western Serpens double stars on June 14


Post by turboscrew »

Congrats on the VROD!
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LAT 61° 28' 10.9" N, Bortle 5

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Re: Western Serpens double stars on June 14


Post by John Baars »

Very nice doubles.
I think STF1930 is a nice one, with M5 in one field of view?
Thanks for your report.
congratulations on the VROD!
Telescopes in Schiedam in frequency of use : *grabngo: SW 102 Maksutov F/13, *SW Evostar 120ED F/7.5, * SW 150mm Achromat F/5, *Vixen 102ED F/9, *OMC140 Maksutov F/14.3, on Vixen GPDX.
Most used Eyepieces: *Morpheus 14, *Panoptic 24, *Leica ASPH zoom, *Zeiss barlow, *Pentax XO5.
Most often used binoculars: *AusJena 10X50 Jenoptem, *Swarovski Habicht 7X42, * Canon 10X30 IS,* Celestron Skymaster 15X70, *Kasai 2.3X40

Rijswijk Observatory Foundation telescopes: * Astro-Physics Starfire 130 f/8 on NEQ6, * 6 inch Newton on GP, * C8
on NEQ6, * Meade 14 inch SCT on EQ8, *Lunt.

Amateur since 1970.
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