Double Star Marathon Observing List by: Glenn Chaple, 2016 R.A. (2000) Dec.

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1 Double Star Marathon Observing List by: Glenn Chaple, 2016 Num Object Con SAO # R.A. (2000) Dec. PSA Mags. Sep ( ) PA ( ) Notes Time Eyepiece/Comments h m deg min 7 gamma And AND , Almaak 2 44 zeta1 Ant ANT , Aql AQL , east of GC Pal gamma Ari ARI , Mesarthim 4 6 lambda Ari ARI , kappa Boo BOO , Asellus Tertius iota Boo BOO , STF 1835 BOO , HR pi Boo BOO , epsilon Boo BOO , Izar xi Boo BOO , delta Boo BOO , mu1, mu2 Boo BOO , Alkalurops/mu2 is 2" dbl STF 485 CAM , HR 1260/in OC NGC Cam CAM , near DN B Cam CAM , HR 4893 / STF NE of PN IC STF 3053 CAS , HR alpha Cas CAS , Shedir 3 3 eta Cas CAS , Achird 3 4 STF 163 CAS , HD sigma Cas CAS , Cen CEN , east of 1 Cen kappa Cep CEP , beta Cep CEP , Alfirk STF 2816 CEP , HR 8281/at center of 5.6, OC in nebula IC STF 2819 CEP , HD /E of STF xi Cep CEP , Kurhah delta Cep CEP , h3945 CMa CMA , HR

2 Num Object Con SAO # R.A. (2000) Dec. Mags. h m deg min Notes Time PSA Eyepiece/Comments 40 zeta Cnc CNC , Tegmen/A is a 1.2" dbl phi2 Cnc CNC , iota Cnc CNC , Com COM , zeta CrB CRB , sigma CrB CRB , delta Crv CRV , Algorab STF 1659 CRV , HD / Stargate STF 1669 CRV , HR alpha CVn CVN , Cor Caroli beta Cyg CYG , Alberio Cyg CYG , h1470 CYG , HD /W of Basel Cyg CYG , Piazzi's Flying Star gamma Del DEL , , 17 Dra DRA , Dra 5.4, Dra mu Dra DRA , Arrakis nu Dra DRA , Kuma psi Dra DRA , Dsiban , 41 Dra DRA , SE of epsilon UMi Eri ERI , omi2 Eri ERI , Keid Eri ERI , west of Rigel Gem GEM , alpha Gem GEM , Castor kappa Her HER , Marfik alpha Her HER , Rasalgethi delta Her HER , Sarin rho Her HER , Her HER , Her HER , south of omicron Her N Hya HYA , HR 4443 / H(3) 96 36

3 Num Object Con SAO # R.A. (2000) Dec. Mags. h m deg min Notes Time PSA Eyepiece/Comments Lac LAC , gamma Leo LEO , Algieba Leo LEO , gamma Lep LEP , Lyn LYN , A is a close 1.7" dbl Lyn LYN , bright DS east of R Lyn LYN , epsilon2 Lyr LYR , Double Double 3.5'sep epsilon1 Lyr LYR , Double Double 3.5'sep zeta Lyr LYR , beta Lyr LYR , Sheliak SHJ 282 LYR , STT 525 / HR STF 2470 LYR , HD STF 2474 LYR , HR epsilon Mon MON , Mon beta Mon MON , , Oph OPH , omicron Oph OPH , Oph OPH , rho Orionis ORI , beta Ori ORI , Rigel delta Ori ORI , Minitaka STF 747 ORI , HR Det B / D lambda Ori ORI , Meissa theta1 Ori ORI , Trapezium in M42 6.7, see PSA Det B, idsa D7 6.7, iota Ori ORI , Nair al Saif - Det B / D sigma Ori ORI , , STF 817 ORI , HD39758/S alpha Ori 14 not 106 epsilon Peg PEG , Enif eta Per PER , Miram & a 66" 2

4 Num Object Con SAO # R.A. (2000) Dec. Mags. h m deg min Notes Time PSA Eyepiece/Comments 11 STF 331 PER , HR STF 1121 PUP , HD 60997/mid OC M kappa Pup PUP , HR 2949 / H(3) NW 1 & 3 Pup Pup PUP , near 4 Pup xi Sco SCO , beta Sco SCO , Graffias nu Sco SCO , Jabbah delta Ser SER , beta Ser SER , theta Ser SER , Alya PZ4 (h5003) SGR , HR 6693/also as PZ W of gamma Sgr chi Tau TAU , Tau TAU , STF 742 TAU , HD 37013/E of M1/Crab 14 8 iota Tri TRI , Tri 2 56 zeta UMa UMA , Mizar; 12' 43 9 alpha UMi UMI , Polaris 1 51 STF 1664 VIR , HD /WNW of M gamma Vir VIR , Porrima 47

5 Num Object 7 gamma And 44 zeta1 Ant Aql 5 gamma Ari 6 lambda Ari 58 kappa Boo 59 iota Boo 60 STF pi Boo 62 epsilon Boo 63 xi Boo 64 delta Boo 65 mu1, mu2 Boo 13 STF Cam Cam 1 STF alpha Cas 3 eta Cas 4 STF sigma Cas 57 3 Cen 100 kappa Cep 103 beta Cep 104 STF STF xi Cep 108 delta Cep 34 h3945 CMa Chart References by: Jim K, 2017 CDSA 1 st CDSA idsa TriAtlas "B" Taki 2 nd , 26 B25, 24 18, B75 26, 25 19, 18 19, 18 54, 66 B48 21, 20 7, 6 7, 6 51, 50 B43, 44 17, 18 7, 6 7, 6 32, 39 B43, 44 17, , 11 B16, 17 3, , 11 B16, 17 3, 11 10, 17 10, 17 44, 56 B , 17 10, B B , 17 10, B B , 32 B B23, 24 6, , 25 B , 4 B5, , 7 B1 6, B25, B25, B24, , 8 B10 6, 7, 18 23, 24 23, 24 81, 80 B72 24, B2, 1 1, 1-6 2, 1 2, 1 2 B2 1, B11, B11, 12 1 not B2, B , 72 B77 27

6 Num Object 40 zeta Cnc 41 phi2 Cnc 42 iota Cnc Com 67 zeta CrB 73 sigma CrB 48 delta Crv 50 STF STF alpha CVn 96 beta Cyg Cyg 99 h Cyg 101 gamma Del 74 16, 17 Dra 75 mu Dra 81 nu Dra 82 psi Dra 84 40, 41 Dra Eri 14 omi2 Eri Eri Gem 36 alpha Gem 71 kappa Her 76 alpha Her 77 delta Her 80 rho Her Her Her 47 N Hya CDSA 1 st CDSA idsa TriAtlas "B" Taki 2 nd B38, 39 14, B38 14, B B , 20 B33, 32 11, B32 11, 10 16, 23 16, B , 23 16, B54, not 16, 23 16, B54, not , 33 B17, B29, , 11 5, B13 8, 2 11, 2 11, 2 13, 17 B29 8 not , 29 B12, , 11 19, B29, , 14 B B14, B14, B3, 4 2, 1-4, B3, 1-4 2, B61 28, , 73 B61 28, 29 14, 13 14, 13 61, 73 B , 14 8, B40, 39, 58, B39 15, 14 10, 17, 18 10, 17, B32 10, 11 10, 18 10, B B , 19 B31, 14, , 11 10, 11 31, 30, 42, 43 B31 10, 9 10, 11 10, 11 31, 30 B31 10, B74 25

7 Num Object Lac 45 gamma Leo Leo 28 gamma Lep Lyn Lyn Lyn 89 epsilon2 Lyr 88 epsilon1 Lyr 90 zeta Lyr 91 beta Lyr 92 SHJ STF STF epsilon Mon 31 beta Mon Oph 79 omicron Oph Oph 18 rho Orionis 19 beta Ori 21 delta Ori 22 STF lambda Ori 24 theta1 Ori 25 iota Ori 27 sigma Ori 29 STF epsilon Peg 10 eta Per CDSA 1 st CDSA idsa TriAtlas "B" Taki 2 nd 2, 6 2, 6 16 B11, 27 7, 8 9, 15, 16 9, 15, B37 13, B36, , 85 B79, 78 28, B B , 35 B20, B30, 13, B30, 13, , 18 B30, 13, B B B30 9 not B B59 15, , 72 B B B B50 10, 9, 21, B60 16, , 73 B B60 28, , D7 B60, B60, , D7 B60, , D7 B60, B60, 59 28, not 14 not 61, 49 B59 16 not 11, 19 11, B47 8, 7 2, 3 2, 3 15, 14 B24 6, 17

8 Num Object 11 STF STF kappa Pup 39 2 Pup 69 xi Sco 70 beta Sco 72 nu Sco 66 delta Ser 68 beta Ser 93 theta Ser 83 PZ4 (h5003) 15 chi Tau Tau 26 STF iota Tri 56 zeta UMa 9 alpha UMi 51 STF gamma Vir CDSA 1 st CDSA idsa TriAtlas "B" Taki 2 nd 2, 3 2, 3 15, 14 B24 6, 17 22, 14, B77 27 not B , 14, 15 22, 14, 15 84, 72 B , 17, 18 24, 17, 18 67, 68 B70 22, 23 24, 17, 18 24, 17, 18 67, 68 B70 22, 23 24, 17, 18 24, 17, B70 22, 23 17, 10 17, B , 10 17, B32, 33 11, B49 9, , 79 B69 22, B42, B , 37 B41, not 7, 6 7, 6 38 B43 17, B B4, , 23 16, B54, B54 12, 24

9 References: commercial Astronomy magazine, March 2016, article by Glenn Chaple (listing obtained separately) PSA commercial Sky & Telescope's "Pocket Sky Atlas" by R.W. Sinnott, 2006 CDST 1 st commercial "The Cambridge Double Star Atlas" by J. Mullaney & W.Tirion, 1st edition, 2009 (now out of print) CDST 2 nd commercial "The Cambridge Double Star Atlas" by B. MacEvoy & W.Tirion, 2nd edition, 2015 idsa commercial "interstellarum Deep Sky Atlas" by R. Stoyan & S. Schurig, 2014 TriAtlas "B" "free" "Tri-Atlas" by J.R. Tores Lapasio, "B" size, 2nd edition, April 2008 available at ==> Taki "free" "Atlas of Double Stars" by T. Taki & P. Wehner, September 2007 commercial available at ==> "Sky Tools 3" software by G. Crinklaw (for HR and HD star numbers, and object confirmations) Comments: No commonly available paper atlas identifies 100% of the double stars on this list. Preparation is KEY to completing this marathon, which only allows ~5 minutes per object over ~9 observing hours. The PSA may be the best field tool for performing the marathon, after first using the other references to annotate the PSA. BOLD ITALIC chart numbers with a left alignment/justification are those where objects are plotted but not labeled. BOLD chart numbers with a "not" after them indicate objects which are not included in the atlas. The "Notes" column provides other identification for the object; some charts use this nomenclature. If the object appears on several charts, the first one listed offers a "best" chart view. Minor edits to the original listing (for better spacing) and chart cross-references added by Jim K (28 March 2017)

Measurement of Double Stars Using Webcams 2011 and 2012

Page 176 Measurement of Double Stars Using Webcams 2011 and 2012 Allen S. Malsbury, P.E Parsippany, New Jersey, USA clearskyobserverwebmaster@gmail.com Abstract: A description is given of the equipment