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Double Stars

Name          RA        DEC       Separation      Mag              CON  Description
Eta Cas       00 49.1   +57 49    12"             3.4,7.5          Cas  striking color and mag contrast
65 Psc        00 49.9   +27 43    4"              6.3,6.3          Psc  evenly matched pair
Psi-1 Psc     01 05.6   +21 28    30"             5.6,5.8          Psc  wide but similar magnitudes
Zeta Psc      01 13.7   +07 35    23"             5.6,6.5          Psc  easily split bright pair
1 Ari         01 50.1   +22 17    3"              6.2,7.4          Ari  gold/blue pair
Gamma Ari     01 53.5   +19 18    8"              4.8,4.8          Ari  perfectly matched pair
Lambda Ari    01 57.9   +23 36    37"             4.9,7.7          Ari  striking color contrast
Alpha Psc     02 02.0   +02 46    2"              4.2,5.1          Psc  close pair, use high power
Gamma And     02 03.9   +42 20    10"             2.3,5.5          And  bright yellow/blue pair
Iota Tri      02 12.4   +30 18    4"              5.3,6.9          Tri  striking color contrast
Iota Cas      02 29.1   +67 24    2.5",7"         4.6,6.9,8.4      Cas  challenging triple with color contrast
Alpha UMi     02 31.8   +89 16    18"             2.0,9.0          UMi  Polaris-much fainter companion
Gamma Cet     02 43.3   +03 14    3"              3.5,7.3          Cet  use high power to resolve faint companion
Theta Eri     02 58.3   -40 18    8"              3.4,4.5          Eri  bright, striking pair
32 Eri        03 54.3   -02 57    7"              4.8,6.1          Eri  easy pair with good colors
1 Cam         04 32.0   +53 55    10"             5.7,6.8          Cam  pleasing color contrast
55 Eri        04 43.6   -08 48    9"              6.7,6.8          Eri  perfectly matched double
R Lep         04 59.6   -14 48    Stellar         5.5-11.7         Lep  Hind's Crimson Star-deep red variable, Per = 432 days
Beta Ori      05 14.5   -08 12    9"              0.1,6.8          Ori  Rigel, very large magnitude contrast
118 Tau       05 29.3   +25 09    5"              5.8,6.6          Tau  well-matched double star
Lambda Ori    05 35.1   +09 56    4"              3.6,5.5          Ori  large magnitude contrast
Theta-1 Ori   05 35.3   -05 23    9",13",22"      6.7,7.9,5.1,6.7  Ori  Trapezium-quadruple star at heart of M42
Sigma Ori     05 38.7   -02 36    11",12,43"      4.0,10,7.5,6.5   Ori  pretty quadruple star
Zeta Ori      05 40.8   -01 57    2.4"            1.9,4.0          Ori  fainter companion lost in glare, use high power
Theta Aur     05 59.7   +37 13    3.5"            2.6,7.1          Aur  large magnitude contrast
Epsilon Mon   06 23.8   +04 36    13"             4.5,6.5          Mon  good color contrast
Beta Mon      06 28.8   -07 02    7",10"          4.7,5.2,6.1      Mon  unusual similar magnitude triple star
12 Lyn        06 46.2   +59 27    2",9"           5.4,6.0,7.3      Lyn  use high power on close pair
h3945         07 16.6   -23 19    27"             4.8,6.8          CMa  striking color contrast, 1.7 N of NGC 2362
Delta Gem     07 20.1   +21 59    6"              3.5,8.2          Gem  very unequal magnitude pair
19 Lyn        07 22.9   +55 17    15"             5.6,6.5          Lyn  easy fairly bright pair
Castor        07 34.6   +31 53    2"              1.9,2.9          Gem  very bright, but tight pair
Kappa Pup     07 38.8   -26 48    10"             4.5,4.7          Pup  equal magnitude pair
Zeta Cnc      08 12.2   +17 39    0.6",6"         5.6,6.0,6.2      Cnc  use highest power for close pair
Iota Cnc      08 46.7   +28 46    30"             4.2,6.6          Cnc  wide pair with a good color contrast
Gamma Leo     10 20.0   +19 51    4"              2.2,3.5          Leo  bright, striking pair
N Hyd         11 32.3   -29 16    9"              5.8,5.9          Hyd  equal magnitude pair
Delta Crv     12 29.9   -16 31    24"             3.0,9.2          Crv  wide, uneven pair with nice colors
24 Com        12 35.1   +18 23    20"             5.2,6.7          CVn  easy pair with color contrast, near M85
Gamma Vir     12 41.7   -01 27    3"              3.5,3.5          Vir  Porrima, beautiful equal magnitude pair
Y CVn         12 45.1   +45 26    Stellar         7.4-10.0         CVn  La Superba, deep red variable, Per = 157 days
32 Cam        12 49.2   +83 25    22"             5.3,5.8          Cam  easily resolved similar pair
Alpha CVn     12 56.0   +38 19    19"             2.9,5.5          CVn  bright, easy pair
Zeta UMa      13 23.9   +54 56    14"             2.3,4.0          Uma  Mizar in handle of Big Dipper, also Alcor nearby
Kappa Boo     14 13.5   +51 47    13"             4.6,6.6          Boo  striking color contrast
Pi Boo        14 40.7   +16 25    6"              4.9,5.8          Boo  pleasing double star
Epsilon Boo   14 45.0   +27 04    3"              2.5,4.9          Boo  Izar-yellow/blue pair at high power
Xi Boo        14 51.4   +19 06    7"              4.7,7.0          Boo  yellow/violet pair
Mu Boo        15 24.5   +37 23    108",2"         4.3,7.0,7.6      Boo  triple star, close fainter pair
Delta Ser     15 34.8   +10 32    4"              4.2,5.2          Ser  bright pair in Serpens Caput
Zeta CrB      15 39.4   +36 38    6"              5.1,6.0          CrB  similar nicely spaced pair
Xi Sco        16 04.4   -11 22    7"              4.5,7.3          Sco  double star, also extremely close primary
Kappa Her     16 08.1   +17 03    28"             5.3,6.5          Her  wide pair with an excellent color contrast
Nu Sco        16 12.0   -19 28    40",1",1"       4.3,6.8,6.4,7.8  Sco  very difficult quadruple star
16/17 Dra     16 36.2   +52 55    3",90"          5.4,6.4,5.5      Dra  triple star with a close pair
Mu Dra        17 05.3   +54 28    2"              5.7,5.7          Dra  very close with identical magnitudes
Alpha Her     17 14.6   +14 23    5               3.5,5.4          Her  excellent color contrast
36 Oph        17 15.3   -26 36    5"              5.1,5.1          Oph  identical matched pair
39 Oph        17 18.0   -24 17    10"             5.4,6.9          Oph  striking color contrast
Rho Her       17 23.7   +37 09    4"              4.6,5.6          Her  bright and fairly close pair
Nu Dra        17 32.2   +55 11    62"             4.9,4.9          Dra  very wide similar pair
40/41 Dra     18 00.2   +80 00    19"             5.7,6.1          Dra  easily resolved pair
95 Her        18 01.5   +21 36    6"              5.0,5.1          Her  perfectly matched duo
70 Oph        18 05.5   +02 30    3"              4.2,6.0          Oph  close challenging pair
Epsilon Lyr   18 44.3   +39 40    208",2.6",2.3"  5.0,6.1,5.2,5.5  Lyr  Double-Double, two well-matched pairs
Zeta Lyr      18 44.8   +37 36    44"             4.3,5.9          Lyr  wide double star
STF2404       18 50.8   +10 59    4"              6.9,8.1          Aql  located 40' N of open cluster NGC 6709
STT525        18 54.9   +33 58    45"             6.0,7.7          Lyr  wide with good colors
Theta Ser     18 56.2   +04 12    22"             4.5,5.4          Ser  bright, wide pair in Serpens Cauda
V Aql         19 04.4   -05 41    Stellar         6.6-8.4          Aql  unusually deep red color, Per = 353 days
Beta Cyg      19 30.7   +27 58    34"             3.1,5.1          Cyg  Albireo-striking blue/gold pair!
57 Aql        19 54.6   -08 14    36"             5.8,6.5          Aql  wide well-matched duo
Gamma Del     20 46.7   +16 07    10"             4.5,5.5          Del  bright, well-matched pair
61 Cyg        21 06.9   +38 45    29"             5.2,6.0          Cyg  well separated double star
S Cep         21 35.2   +78 37    Stellar         7.4-12.9         Cep  deep red variable, Carbon star, Per = 487 days
STF2816       21 39.0   +57 29    12",20"         5.6,7.7,7.8      Cep  triple star at center of faint nebula IC 1396
Mu Cep        21 43.5   +58 47    Stellar         3.4-5.1          Cep  Herschel's Garnet Star-deep red variable, Per = 730 days
Xi Cep        22 03.8   +64 38    8"              4.4,6.5          Cep  bright double star
Zeta Aqr      22 28.8   -00 01    2"              4.3,4.5          Aqr  close evenly matched pair
Delta Cep     22 29.2   +58 25    41"             3.9,6.3          Cep  famous cepheid variable and wide double star
8 Lac         22 35.9   +39 38    22"             5.7,6.5          Lac  easy in all scopes
94 Aqr        23 19.1   -13 28    13"             5.3,7.3          Aqr  good color contrast
TX Psc        23 46.4   +03 29    Stellar         5.0-5.5          Psc  deep red variable of Carbon class, irregular period
Sigma Cas     23 59.0   +55 45    3"              5.0,7.1          Cas  close with good color contrast