More Serpens double stars

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John Fitzgerald United States of America
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More Serpens double stars

#1

Post by John Fitzgerald »


Here's my double star observing report for the evening of 15 June 2021, using my 6" f/8 apo:
Serpens doubles:
Beta Ser, STF 1970, m 3.7, 10.0, sep 30" at PA 264 degrees. Great contrast, with the tiny secondary preceding the primary at 135x, using TV Delite 9mm eyepiece. This is a physical double, with the components at least 1,400 AU apart.

STF 1974, m 8.9, 9.1, sep 2.5" at PA 158. This nearly equal double was well seen at 173x with my 7mm TV Delite.

STF 1988, m 7.6, 7.8, sep 1.8" at PA 250 deg. This is a very nice pair, nearly E-W, well split at 173x.

STF 2000, m 8.4, 9.2, sep 2.6" at PA 228. Clean split at 173x.

STF 2003, m 7.3, 10.5, sep 14.2" at PA 170. Great magnitude contrast, with the "comes" lying almost straight south of the primary.

STF 2007, m 6.9, 8.0, sep 38.6" at PA 322. This would be a nice binocular double. It was a wide split at 50x with a 24mm Panoptic eyepiece.

STF 2041, m 7.5, 10.5 sep 2.6" at PA 1 deg. Clean split and great magnitude contrast at 203x.

STF 2321, m 8.5, 9.6, sep 6.7" at PA 191. Very well seen at 173x.

STF 2324, m 9.0, 9.4, sep 2.4" at PA 149. Split at 173x.

STF 2347, m 8.1, 9.8, sep 3.3" at PA 259. Good split at 203x. This double is optical only.

Seeing deteriorated near the end of the session, as it frequently does as the temperature falls late in the evening.
Double and multiple star observer. Over 3,500 unique pairs logged.

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Bigzmey United States of America
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Re: More Serpens double stars

#2

Post by Bigzmey »


Another nice haul of doubles John! Is there a system in your target selection? I noticed that all doubles in both sessions are from the STF catalog.
Scopes: Stellarvue: SV102ED; Celestron: 9.25" EdgeHD, 8" SCT, 150ST, Onyx 80ED; iOptron: Hankmeister 6" Mak; SW: 7" Mak; Meade: 80ST.
Mounts: SW: SkyTee2, AzGTi; iOptron: AZMP; ES: Twilight I; Bresser: EXOS2; UA: MicroStar.
Binos: APM: 100-90 APO; Canon: IS 15x50; Orion: Binoviewer, LG II 15x70, WV 10x50, Nikon: AE 16x50, 10x50, 8x40.
EPs: Pentax: XWs & XFs; TeleVue: Delites, Panoptic & Plossls; ES: 68, 62; Vixen: SLVs; Baader: BCOs, Aspherics, Mark IV.
Diagonals: Baader: BBHS mirror, Zeiss Spec T2 prism, Clicklock dielectric; TeleVue: Evebrite dielectric; AltairAstro: 2" prism.
Filters: Lumicon: DeepSky, UHC, OIII, H-beta; Baader: Moon & SkyGlow, Contrast Booster, UHC-S, 6-color set; Astronomik: UHC.

Observing: DSOs: 3106 (Completed: Messier, Herschel 1, 2, 3. In progress: H2,500: 2180, S110: 77). Doubles: 2382, Comets: 34, Asteroids: 255
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Re: More Serpens double stars

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Bigzmey wrote: Wed Jun 16, 2021 4:23 pm Another nice haul of doubles John! Is there a system in your target selection? I noticed that all doubles in both sessions are from the STF catalog.
I have been going through the STF catalog, constellation by constellation, since I got this 6" f/8 apo. I have logged many hundreds of observations in the past two years from the STF, STT, HJ, and other catalogs. There are so many to observe, that some constellations (mostly south of the celestial equator), have passed from sight before I even got to them. I'm on the second year of this, and it will probably take at least three full years to observe all of them, southern winter constellations being the most difficult to get around to. The northern summer constellations have been mostly completed. I try to observe pairs that are resolvable with my scope under 8" of arc separation, plus other pairs that might be noteworthy, or be binaries, with large magnitude differences. For the most difficult binaries, I have occasional access to a 12 inch Newt, and a C14.
Double and multiple star observer. Over 3,500 unique pairs logged.

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Re: More Serpens double stars

#4

Post by helicon »


Congrats John on winning today's VROD for your follow-up evening observing double stars in Serpens, a constellation which really seems to have a wide variety of double stars as targets.
-Michael
Refractors: ES AR152 f/6.5 Achromat on Twilight II, Celestron 102mm XLT f/9.8 on Celestron Heavy Duty Alt Az mount, KOWA 90mm spotting scope
Binoculars: Celestron SkyMaster 15x70, Bushnell 10x50
Eyepieces: Various, GSO Superview, 9mm Plossl, Celestron 25mm Plossl
Camera: ZWO ASI 120
Naked Eye: Two Eyeballs
Latitude: 48.7229° N
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Re: More Serpens double stars

#5

Post by Makuser »


Hello John. Another nice haul of STF doubles from the Serpens region with the 6" f/8 apo telescope. Thanks for your appended observing session update John, and congratulations on winning the TSS VROD Award today.
Marshall
Sky-Watcher 90mm f/13.8 Maksutov-Cassegrain on motorized Multimount
Orion Astroview 120ST f/5 Refractor on EQ3 mount
Celestron Comet Catcher 140mm f/3.64 Schmidt-Newtonian on alt-az 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 ASI 120MC camera.
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Re: More Serpens double stars

#6

Post by Bigzmey »


John Fitzgerald wrote: Wed Jun 16, 2021 4:50 pm
Bigzmey wrote: Wed Jun 16, 2021 4:23 pm Another nice haul of doubles John! Is there a system in your target selection? I noticed that all doubles in both sessions are from the STF catalog.
I have been going through the STF catalog, constellation by constellation, since I got this 6" f/8 apo. I have logged many hundreds of observations in the past two years from the STF, STT, HJ, and other catalogs. There are so many to observe, that some constellations (mostly south of the celestial equator), have passed from sight before I even got to them. I'm on the second year of this, and it will probably take at least three full years to observe all of them, southern winter constellations being the most difficult to get around to. The northern summer constellations have been mostly completed. I try to observe pairs that are resolvable with my scope under 8" of arc separation, plus other pairs that might be noteworthy, or be binaries, with large magnitude differences. For the most difficult binaries, I have occasional access to a 12 inch Newt, and a C14.
I like to revisit constellations year after year. For me never running out of targets is a good thing.
Scopes: Stellarvue: SV102ED; Celestron: 9.25" EdgeHD, 8" SCT, 150ST, Onyx 80ED; iOptron: Hankmeister 6" Mak; SW: 7" Mak; Meade: 80ST.
Mounts: SW: SkyTee2, AzGTi; iOptron: AZMP; ES: Twilight I; Bresser: EXOS2; UA: MicroStar.
Binos: APM: 100-90 APO; Canon: IS 15x50; Orion: Binoviewer, LG II 15x70, WV 10x50, Nikon: AE 16x50, 10x50, 8x40.
EPs: Pentax: XWs & XFs; TeleVue: Delites, Panoptic & Plossls; ES: 68, 62; Vixen: SLVs; Baader: BCOs, Aspherics, Mark IV.
Diagonals: Baader: BBHS mirror, Zeiss Spec T2 prism, Clicklock dielectric; TeleVue: Evebrite dielectric; AltairAstro: 2" prism.
Filters: Lumicon: DeepSky, UHC, OIII, H-beta; Baader: Moon & SkyGlow, Contrast Booster, UHC-S, 6-color set; Astronomik: UHC.

Observing: DSOs: 3106 (Completed: Messier, Herschel 1, 2, 3. In progress: H2,500: 2180, S110: 77). Doubles: 2382, Comets: 34, Asteroids: 255
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Re: More Serpens double stars

#7

Post by Lady Fraktor »


A nice evening out John :)
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
EQ: TAL MT-1, Vixen SXP, AXJ, AXD
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
Diagonals: Astro-Physics, Baader Amici, Baader Herschel, iStar Blue, Stellarvue DX, Takahashi prism, TAL, Vixen flip mirror
Eyepieces: Antares to Zeiss
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Re: More Serpens double stars

#8

Post by MistrBadgr »


Thanks for taking me along on this ride! You have some nice challenge objects in there! :)
Bill Steen
Many small scopes, plus a Lightbridge 12, LX 70-8R,6R,6M
Many eyepieces, just not really expensive ones.
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