| Binocular Doubles |
This is another project of double stars, this time for binocular observers. The list comes from the famous Philip S. Harrrington book: Touring the Universe thorough Binoculars.
As oposed to the rest of our group's observing projects, this one is opened all year, since it covers all the sky in the Northern Sky (a lot of stars are also visible from South latitudes).
You can use any
size of
binoculars
to observe these stars. With a pair of good 10x50 you'll probably be
able
to observe every double in this list, but there are plenty of material
to be observed with 8x32 or even 8x24 instruments. Users of 20x60 or
even
25x100 monsters will also find atractive targets here.
Paolo has compiled two important documents:
- Observing reports:
All the observations made by S33 members have been put together in a
single pdf file that
you can download
here (about 900k bytes in length)
Date of last update: April, 1st, 2009. - Sky maps: All the
data of the binocular doubles with location maps can be downloaded here (about 1.1 Mbytes in
length)
| Name | Cons | R.A. (2000) |
Dec (2000) |
Mag | Sep | PA |
| 56 | And | 01 56.2 | +37 15 | 5.7-6.0 | 190" | 300 (1928) |
| 15 | Aql | 19 05.0 | -04 02 | 5.5-7.2 | 38" | 209 (1959) |
| OSS 178 | Aql | 19 15.3 | +15 05 | 5.7-7.8 | 90" | 268 (1925) |
| Lambda | Ari | 01 57.9 | +23 36 | 4.9-7.7 | 37" | 46 (1933) |
| 30 | Ari | 02 37.0 | +24 39 | 6.6-7.4 | 39" | 274 (1937) |
| S 656 | Boo | 13 50.4 | +21 17 | 6.8-7.3 | 86" | 208 (1923) |
| Iota | Boo | 14 16.2 | +51 22 | 4.9-7.5 | 39" | 33 (1942) |
| Delta | Boo | 15 15.5 | +33 19 | 3.5-8.7 | 105" | 79 (1976) |
| Mu | Boo | 15 24.5 | +37 23 | 4.3-6.5 | 108" | 171 (1956) |
| OSS 36 | Cam | 03 40.0 | +63 52 | 6.8-8.6 | 46" | 69 (1923) |
| S 436 | Cam | 03 49.3 | +57 07 | 6.5-7.3 | 58" | 75 (1975) |
| 11 | Cam | 05 06.1 | +58 58 | 5.4-6.5 | 180" | 8 (1924) |
| Struve 1051 | Cam | 07 26.6 | +73 05 | 7.1-7.8 | 31" | 82 (1935) |
| OSS 90 | Cam | 08 02.5 | +63 05 | 6.0-8.4 | 49" | 82 (1924) |
| Burnham 584 | Cnc | 08 39.9 | +19 33 | 6.9-7.2 | 45"-93" | 156, 241 (1952) |
| Iota | Cnc | 08 46.7 | +28 46 | 4.2-6.6 | 31" | 307 (1968) |
| 17 | CVn | 13 10.1 | +38 30 | 6.0-6.2 | 84" | 297 (1922) |
| Alpha1+2 | Cap | 20 18.1 | -12 33 | 3.6-4.2 | 378" | 291 (1924) |
| Beta1+2 | Cap | 20 21.0 | -14 47 | 3.4-6.2 | 205" | 267 (1922) |
| OSS 26 | Cas | 02 19.7 | +60 02 | 6.9-7.4 | 63" | 200 (1925) |
| OSS 1 | Cep | 00 14.0 | +76 02 | 7.6-7.9 | 76" | 103 (1923) |
| 37 | Cet | 01 14.4 | -07 55 | 5.2-8.7 | 50" | 331 (1931) |
| 17 | Com | 12 28.9 | +25 55 | 5.3-6.6 | 145" | 251 (1928) |
| 32+33 | Com | 12 52.2 | +17 04 | 6.3-6.7 | 95" | 49 (1922) |
| H V 38 | CrB | 16 22.9 | +32 20 | 6.3-8.8 | 34.7" | 19 (1914) |
| OSS 182 | Cyg | 19 26.8 | +50 09 | 7.3-8.5 | 73" | 300 (1956) |
| Beta (Albireo) | Cyg | 19 30.7 | +27 58 | 3.1-5.1 | 34" | 54 (1967) |
| Omicron1 | Cyg | 20 13.6 | +46 44 | 4-7-5 | 107"-338" | 173, 338 (1926) |
| OSS 207 | Cyg | 20 22.9 | +42 59 | 6.6-8.5 | 93" | 63 (1920) |
| 61 | Cyg | 21 06.9 | +38 45 | 5.2-6.0 | 29" | 195 (1976) |
| S 752 | Del | 20 30.2 | +19 25 | 6.6-7.0 | 106" | 288 (1915) |
| Struve1516 | Dra | 11 15.4 | +73 28 | 7.6-8.1 | 36.2" | 102 (1940) |
| OSS 123 | Dra | 13 27.1 | +64 44 | 6.7-7.0 | 69" | 147 (1924) |
| 16 + 17 | Dra | 16 36.2 | +52 55 | 5.4-5.5 | 90" | 194 (1956) |
| Nu | Dra | 17 32.2 | +55 11 | 4.9-4.9 | 62" | 312 (1955) |
| Psi | Dra | 17 41.9 | +72 09 | 4.9-6.1 | 30" | 15 (1958) |
| Struve2278 | Dra | 18 02.9 | +56 26 | 7-8-9-10 | 37"-34"-201" | 26, 35, 191 (1949) |
| 39 | Dra | 18 23.9 | +58 48 | 5.0-7.4 | 89" | 21 (1956) |
| Omicron | Dra | 18 51.2 | +59 23 | 4.8-7.8 | 34" | 326 (1949) |
| Gamma | Equ | 21 10.3 | +10 08 | 4.7-5.9 | 353" | 153 (1922) |
| Burnham 1042 | Eri | 03 58.6 | -02 39 | 7.5-8.5 | 56" | 93 (1913) |
| Omicron2 | Eri | 04 15.2 | -07 39 | 4.4-9.5 | 83" | 104 (1970) |
| 62 | Eri | 04 56.4 | -05 10 | 5.5-9.1 | 67" | 75 (1913) |
| Nu | Gem | 06 29.0 | +20 13 | 4.2-8.7 | 113" | 329 (1924) |
| Zeta | Gem | 07 04.1 | +20 34 | 3.8-8.0 | 96" | 350 (1925) |
| Struve1090 | Gem | 07 26.5 | +18 31 | 7.3-8.2 | 61" | 97 (1921) |
| Alpha | Gem | 07 34.6 | +31 53 | 1.9-8.8 | 73" | 164 (1955) |
| 37 | Her | 16 40.6 | +04 13 | 5.8-7.0 | 70" | 230 (1932) |
| h 99 | Hya | 08 37.8 | -06 48 | 6.8-9.1 | 61" | 202 (1918) |
| 27 | Hya | 09 20.5 | -09 33 | 5.0-6.9 | 229" | 211 (1923) |
| 7 | Leo | 09 35.9 | +14 23 | 6.2-10.0 | 41" | 80 (1946) |
| Alpha | Leo | 10 08.4 | +11 58 | 1.4-7.7 | 177" | 307 (1924) |
| Tau | Leo | 11 27.9 | +02 51 | 5.1-8.0 | 91.1" | 176 (1932) |
| Burnham314 | Lep | 04 59.0 | -16 23 | 5.9-8.2 | 53" | 34 (1914) |
| S 476 | Lep | 05 19.3 | -18 31 | 6.2-6.4 | 39" | 18 (1952) |
| h 3780 | Lep | 05 39.3 | -17 51 | 6-9-8-8 | 89"-76"-129" | 136, 7, 299 (1916) |
| Gamma | Lep | 05 44.5 | -22 27 | 3.7-6.3 | 96" | 350 (1957) |
| SHJ 179 | Lib | 14 25.5 | -19 58 | 6.4-7.6 | 35" | 296 (1955) |
| Alpha1+2 | Lib | 14 50.9 | -16 02 | 2.8-5.2 | 231" | 314 (1913) |
| Iota | Lib | 15 12.2 | -19 47 | 5.1-9.4 | 58" | 111 (1919) |
| SHJ 195 | Lib | 15 14.5 | -18 26 | 7.1-8.1 | 47" | 140 (1916) |
| 5 | Lyn | 06 26.8 | +58 25 | 5.3-7.9 | 96" | 272 (1924) |
| Epsilon1+2 | Lyr | 18 44.3 | +39 40 | 5.0-5.2 | 208" | 173 (1955) |
| Zeta | Lyr | 18 44.8 | +37 36 | 4.3-5.9 | 44" | 150 (1955) |
| Beta | Lyr | 18 50.1 | +33 22 | 3.3v-8.6 | 46" | 149 (1955) |
| Delta1+2 | Lyr | 18 54.5 | +36 54 | 5.6-4.5 | 630" | |
| OS 525 | Lyr | 18 54.9 | +33 58 | 6.0-7.7 | 45" | 350 (1935) |
| OSS 181 | Lyr | 19 20.1 | +26 39 | 7.6-7.4 | 58" | 3 (1923) |
| Zeta | Mon | 08 08.6 | -02 59 | 4.3-7.8 | 67" | 245 (1936) |
| Rho | Oph | 16 25.6 | -23 27 | 5-8-7 | 151"-156" | 0, 253 (1925) |
| 36 | Oph | 17 15.3 | -26 36 | 5-6-8 | 732"-208" | 280, 315 (1905) |
| 53 | Oph | 17 34.6 | +09 35 | 5.8-8.5 | 41" | 191 |
| S 694 | Oph | 17 52.1 | +01 07 | 6.9-7.1 | 82" | 237 |
| 23 | Ori | 05 22.8 | +03 33 | 5.0-7.1 | 32" | 28 |
| Delta | Ori | 05 32.0 | -00 18 | 2.2-6.3 | 53" | 359 |
| Struve 747 | Ori | 05 35.0 | -06 00 | 4.8-5.7 | 36" | 223 |
| 42 + 45 | Ori | 05 35.4 | -04 50 | 4.7-5.3 | 6' | |
| Theta1+2 | Ori | 05 35.4 | -05 25 | 4.9-5.0 | 135" | 314 |
| Theta2 | Ori | 05 35.4 | -05 25 | 5.2-6.5 | 52" | 92 (1937) |
| 75 | Ori | 06 17.1 | +09 57 | 5.4-8.5 | 117" | 159 |
| 85 | Peg | 00 02.2 | +27 05 | 5.8-8.6 | 76" | 330 (1932) |
| 3 | Peg | 21 37.7 | +06 37 | 6.0-8.3 | 39" | 349 (1934) |
| Epsilon | Peg | 21 44.2 | +09 52 | 2.4-8.4 | 143" | 320 (1913) |
| Struve 3007 | Peg | 23 22.8 | +20 34 | 6.6-8.9 | 88" | 311(1956) |
| 57 | Per | 04 33.4 | +43 04 | 6.1-6.8 | 116" | 198 (1913) |
| Psi1 | Psc | 01 05.6 | +21 28 | 5.6-5.8 | 30" | 159 (1832) |
| 77 | Psc | 01 05.8 | +04 55 | 6.8-7.6 | 33" | 83 (1833) |
| H VI 119 | PsA | 22 39.7 | -28 20 | 6.3-7.3 | 87" | 160 (1951) |
| Alpha | PsA | 22 57.6 | -29 37 | 1.2-6.5 | 7200" | |
| Epsilon | Sge | 19 37.3 | +16 28 | 5.7-8.0 | 89" | 81 (1949) |
| Theta | Sge | 20 09.9 | +20 55 | 6.5-7.4 | 84" | 223 (1949) |
| 54 | Sgr | 19 40.7 | -16 18 | 5.4-8.9 | 46" | 42 (1932) |
| Nu | Sco | 16 12.0 | -19 28 | 4.3-6.4 | 41" | 337 (1955) |
| Theta | Ser | 18 56.2 | +04 12 | 4-5-8 | 22"-414" | 104 (1973), 56 (1927) |
| 21 + 22 | Tau | 03 46.1 | +24 32 | 5.6-6.4 | 168" | |
| Eta | Tau | 03 47.5 | +24 06 | 2.85-6.3-8.3-8.5 | 117"-181"-191" | 289, 312, 295 (1903) |
| 27 + BU | Tau | 03 49.2 | +24 03 | 3.7-5.0 | 300" | 180 |
| H VI 98 | Tau | 04 15.5 | +06 11 | 6.3-7.0 | 66" | 315 (1937) |
| Phi | Tau | 04 20.4 | +27 21 | 5.0-8.4 | 52" | 250 (1925) |
| Kappa | Tau | 04 25.4 | +22 18 | 4.4-5.4 | 340" | 173, (1923) |
| Theta1+2 | Tau | 04 28.7 | +15 52 | 3.8-3.4 | 337" | 346 (1921) |
| 88 | Tau | 04 35.7 | +10 10 | 4.3-8.4 | 70" | 299 (1920) |
| OSS 67 | Tau | 05 48.4 | +20 52 | 6.1-8.6 | 76" | 161 (1933) |
| S 598 | UMa | 09 28.7 | +45 36 | 5.5-8-10 | 77"-84" | 162 (1924) |
| 65 | UMa | 11 55.1 | +46 29 | 6.7-6.5 | 63" | 114 (1969) |
| Wnc 4 | UMa | 12 22.4 | +58 05 | 9.0-9.3 | 50" | |
| Zeta | UMa | 13 23.9 | +54 56 | 2.3-4.0 | 709" | 71 (1966) |
| Struve1831 | UMa | 14 16.2 | +56 43 | 7.1-6.6 | 108" | 222 (1956) |
| Pi-1 | UMi | 15 29.2 | +80 27 | 6.6-7.3 | 31" | 80 (1959) |
