|
Name
|
Constellation | RA | Dec | Mag. | Spec.type | Sep. | PA | Distance | Comment | Obs. reports |
|
56
And
|
Andromeda | 1h 56.2m | 37° 15' | 5.7, 5.9 | K0, M0 |
200" |
299° | 300 ly | Wide orange pair at the edge of NGC752 | |
|
gamma
And AB |
Andromeda | 2h 3.9m | 42°20' | 2.3,
5.0 5.0, 6.3 |
K3,
B9 B9, A0 |
10" 0.3" |
63° 103° |
350 ly |
Almach. Radiant topaz
and greemish blue pair ! |
|
|
gamma
Ari
|
Aries | 1h 53.5m | 19° 18' | 4.5, 4.6 | A1, B9 |
7.4" |
1° | 200 ly | Mesartim. A striking twin silvery blue combo | |
|
zeta
Aqr
|
Aquarius | 22h 28.8m | -00° 01' | 4.4, 4.5 | F1, F5 |
1.8" |
187° | 100 ly | Close binary system; both greenish white | |
|
94
Aqr
|
Aquarius | 23h 19.1m | -13° 28' | 5.3, 7.0 | G5, K2 |
12" |
352° | 70 ly | Nice color contrast - light emerald and pale rose | |
|
57
aql
|
Aquila | 19h 54.6m | -08° 14' | 5.7, 6.4 | B7, B8 |
35.7" |
171° | 350 ly | little-known bluish-white pair | |
|
mu
Boo AB |
Bootes | 15h 24.5m | 37° 23' | 4.3,
7.1 7.1, 7.6 |
F2,
G1 G1 |
107" 2.2" |
107° 8° |
100 ly | neat, unequal triple - yellow, two oranges | |
|
kappa K Boo |
Bootes | 14h 13.5m | 51°47' | 4.5, 6.6 | A8, F1 | 14" |
235° |
160 ly |
Pretty double with elusive tints |
|
|
STF 1835 |
Bootes | 14h 23.4m | 8°27' | 5.0, 6.8 | A0, F3 | 6.2" |
194° |
220 ly |
Lovely white and lilac pair |
|
|
pi p Boo |
Bootes | 14h 40.7m | 16°25' | 4.9, 5.8 | B9, A6 | 5.5" |
110° |
320 ly |
Brigt, neatly paired bluish duo |
|
|
zeta z Boo |
Bootes | 14h 41.1m | 13°44' | 4.5, 4.6 | A3, A2 | 0.7" |
298° |
180 ly |
Very close binary, 123-year orbit |
|
|
epsilon e Boo |
Bootes | 14h 45m | 27°04' | 2.6, 4.8 | K0, A2 | 2.9" |
345° |
210 ly |
Izar: superb gold and blue-green |
|
|
xi x Boo |
Bootes | 14h 51.4m | 19°06' | 4.8, 7.0 | G8, K4 | 6.3" | 316° |
22 ly |
Breathtaking, yellow and purple |
|
|
STF 3053 |
Cassiopeia | 0h 02.6m | 66°06' | 5.9, 7.3 | G9, A2 | 15" | 70° |
- ly |
Lovely Albireo miniature; orange & blue |
|
|
eta hCas |
Cassiopeia | 0h 49.1m | 57°49' | 3.4, 7.4 | G0, M0 | 13" | 320° |
19 ly |
Ester egg double; yellow and reddish purple |
|
|
iota
i Cas
AB |
Cassiopeia | 02h29.1m | 67°24' | 4.6,
6.9 4.6, 9.1 |
A5,
F5 A5, G5 |
2.8" 7.4" |
231° 116° |
160 ly |
Tight triple for steady nights; yellow, lilac and blue |
|
|
sigma s Cas |
Cassiopeia | 23h 59m | 55°45' | 5.0, 7.2 | B1, B3 | 2.4" | 328° |
1400 ly |
Tight but intensly hued bluish and greenish duo. |
|
|
32 Cam |
Camelopardalis | 12h 49.2m | 83°25' | 5.3, 5.8 | A1, A0 | 22" |
328° |
300 ly |
Little-known off-white beauty |
|
|
zeta
Cnc AB |
Cancer | 8h 12.2m | 17°39' | 5.3,
6.3 5.3, 6.2 |
F8,
F9 F8, G5 |
1" 5.9" |
61° 72° |
83 ly |
Splendid yelloq trio; |
|
|
iota Cnc |
Cancer | 8h 46.7m | 28°46' | 4.1,
6.0 |
G8,
A3 |
31" |
307° |
300 ly |
"Spring Albireo"; superb sight |
|
|
alfa CVn |
Canes Venatici | 12h 56m | 38°19' | 2.9, 5.5 | A0, F0 | 19" | 229° |
110 ly |
cor Caroli; bluish and lilac |
|
|
alfa1
Cap |
Capricornus | 20h
17.6m 20h 18.1m |
-12°30' -12°33' |
4.2,
9.6 3.6, 10.6 |
G3,
- G9, - |
45" 6.6" |
221° 172° |
700
ly 110 ly |
Algedi. Alpha2 & alpha1 form a wide 381" orange binocular double and a weak telescopic double double. Not related. |
|
|
3 Cen |
Centaurus | 13h 51.8m | -33°00' | 4.5, 6.0 | B5, B8 | 7.9" |
106° |
300 ly |
Striking blusih white combo |
|
|
beta Cep |
Cepheus | 21h 28.7m | 70°34' | 3.2, 7.9 | B2, A2 | 13" |
248° |
600 ly |
Neat contrast in brightness; both bluish white |
|
|
STF
2816 AB |
Cepheus | 21h 29m | 57°29' | 5.6,
7.7 5.6, 7.8 |
O6,
- O6, - |
12" 20" |
120° 339° |
1000 ly |
Stunning triple, with STF 2819 in the same telescopic field |
|
|
STF 2840 |
Cepheus | 21h 52m | 55°48' | 5.5, 6.6 | B6, A1 | 18" |
196° | 600 ly |
Splendid greenish white and bluish white pair. |
|
|
xi Cep |
Cepheus | 22h 3.8m | 64°38' | 4.4, 6.5 | A3, F7 | 7.8" |
276° | 100 ly |
Lovely combo with subtle color contrast |
|
|
delta Cep |
Cepheus | 22h 29.2m | 58°25' | 3.6-4.4, 6.1 | F5-G1, B7 | 41" |
191° | 1000 ly |
Cepheid variable prototype; pale orange & blue. |
|
|
gamma Cet |
Cetus | 2h 43.3m | 3°14' | 3.6, 6.2 | A3, F3 | 2.4" |
299° |
82 ly |
Bright pair with subtle colors |
|
|
24 Com |
Coma Berencies | 12h 35.1m | 18°23' | 5.1, 6.3 | K2, A9 | 20" |
271° |
600 ly |
Albeiro clone, orange and aqua |
|
|
zeta
CrB
|
Corona Borealis | 15h 39.4m | 36° 38' | 5.0, 5.9 | B7, B9 | 6.3" | 306° | 470 ly | lovely, bluish white and greenish white | 02082007 |
|
delta Crv |
Corvus | 12h 29.9m | -16°31' | 3.0, 8.5 | B9, K2 | 25" |
216° |
88 ly |
Yellowish with faint lilac companion |
|
|
beta
Cyg
|
Cygnus | 19h 30.7m | 27°58' | 3.4, 4.7 | K3,B8 | 34.4" | 54° | 380 ly | Albireo, one of the sky's fainest doubles | 14082004 |
|
o1
Cyg AC |
Cygnus | 20h 13.6m | 46°44' | 3.8,
7.0 3.8, 4.8 |
K2,
B9 K2, A5 |
106" 331" |
174° 324° |
1500
ly 700 ly |
Ultra wide triple, red, white and blue; D is not true member | |
|
61
Cyg
|
Cygnus | 21h 06.9m | 38°45' | 5.4, 6.1 | K5, K7 | 31" | 150° | 11.4 ly | Bessel's
Star. Very beautifull easy orange double. more.. |
|
|
gamma Del |
Delphinus | 20h 46.7m | 16°07' | 4.4, 5.0 | K1, A2 | 9.1" |
266° |
100 ly |
Vivid yellow and green! STF 2725 in the same field |
|
|
17 Dra |
Draco | 16h 36.2m | 52° 55' | 5.4,
6.4 5.0, 5.6 |
B9,
A1 B9, B9 |
3.2" 90.4" |
105° 193° |
400 ly | like mu Boo, but magnitudes more evenly matched | |
|
mu
Dra
|
Draco | 17h 5.3m | 54° 28' | 5.7, 5.7 | F7 | 2.3" | 15° | 88 ly | cozy identical twins, both yellowish | |
|
nu
Dra
|
Draco | 17h 32.2m | 55°11' | 4.9, 4.9 | A4, A6 | 63.4" | 311° | 100 ly | sweet, identical-twin white double | |
|
psi
Dra
|
Draco | 17h 41.9m | 72°9' | 4.6, 5.6 | F5, F8 | 30" | 15° | 72 ly | roomy, yellow and lilac duo | |
|
kappa
Her
|
Hercules | 16h 8.1m | 17° 3' | 5.1, 6.2 | G8, K1 | 27.4" | 13° | 400 ly | Stunning yellow and garnet pair | 02082007 |
|
alpha
Her
|
Hercules | 17h 14.6m | 14° 23' | 3.5, 5.4 | M5, G5 | 4.8" | 104° | 400 ly | Vivid orange and blue-green pair | |
|
rho
Her
|
Hercules | 17h 23.7m | 37° 09' | 4.5, 5.4 | A0, B9 | 4" | 320° | 400 ly | greenish white and bluish white | |
|
95
Her
|
Hercules | 18h 1.5m | 21°36' | 4.8, 5.2 | A5, G8 | 6.3" | 257° | 470 ly | amazing, apple green and cherry red | |
|
epsilon
Hya
|
Hydra | 8h 46.8m | 6°25' | 3.3, 6.7 | F0, F5 | 3" | 299° | 140 ly | Challenging; yellow and blue | |
|
N
Hya
|
Hydra | 11h 32.3m | -29°16' | 5.8, 5.9 | F5, F5 | 9.4" | 210° | 87 ly | Pale-yellow identical twins | |
|
8
Lac AB
AC AD AE |
Lacerta | 22h 35.8m | 39°38' | 5.7,
6.3 5.7, 10.5 5.7, 9.1 5.7, 7.3 |
B2,
B2 B2, - B2,A0 B2, F0 |
22" 49" 82" 336" |
185° 168° 144° 240° |
600 ly | Strong double/delicate quintuple; all bluish white | |
|
alfa
Leo
|
Leo | 10h 08.4m | 11° 58' | 1.4, 8.2 | B7, K1 | 175" | 307° | 77 ly | Regulus; faint indigo companion | 26122006 |
|
gamma
Leo
|
Leo | 10h 20m | 19° 50' | 2.4, 3.6 | K0, G7 | 4.6" | 125° | 130 ly | Algeiba; radiant golden gems | |
|
54
Leo
|
Leo | 10h 55.6m | 24° 45' | 4.5, 6.3 | A1, A2 | 6.3" | 111° | 290 ly | Lovely, bluish and greenish | |
|
alfa
Lib
|
Libra | 14h 50.9m | -16° 03' | 2.7, 5.2 | A4, F4 | 231" | 315° | 77 ly | Neat, wide binocular pair | |
|
xi
Lup
|
Lupus | 15h 56.9m | -33° 58' | 5.1, 5.6 | A3, B9 | 10.3" | 49° | 200 ly | Far-South, nealry matched white duo | |
|
38
Lyn
|
Lynx | 9h 18.8m | 36°48' | 3.9, 6.1 | A1, A4 | 2.6" | 226° | 120 ly | Close pair with elusive tints | |
|
alfa
Lyr
|
Lyra | 18h 36.9m | 38°47' | 0, 10? | A0 | 78.5" | 183° | 25 ly | dazzling Vega, not a true binary | |
|
zeta
Lyr
|
Lyra | 18h 44.8m | 37° 36' | 4.3, 5.6 | A4, F0 | 43.8" | 150° | 150 ly | wide, bright, yellowish and greenish | |
|
epsilon1
Lyr
epsilon2 Lyr |
Lyra | 18h 44.3" | 39°40' | 5.0,
6.1 5.2, 5.4 |
A4,
F1 A8, F0 |
2.4" 2.4" |
350° 81° |
160 ly | the famous double-double, tight pairs separated by 210" | |
|
36
Oph
|
Ophiuchus | 17h 15.3m | -26° 36' | 5.1, 5.1 | K0, K1 | 4.7" | 146° | 20 ly | yellowish orange twins | 08082005 |
|
oOph
|
Ophiuchus | 17h 18m | -24° 17' | 5.2, 6.6 | K0, F6 | 10.4" | 355° | 360 ly | easy, pale orange and clear blue | 06082005 |
|
70
Oph
|
Ophiuchus | 18h 5.5m | 2° 30' | 4.2, 6.2 | K0, K4 | 4.8" | 140° | 17 ly | yellow and red, 88-year period | 06082005 08082005 |
|
epsilon
e
Peg
|
Pegasus | 21h 44.2m | 09° 52' | 2.4, 8.5 | K2, - | 143" | 318° | 800 ly | John Herschel's "Pendelum Star"; tap the scope and see ! | |
|
psi
Psc
|
Pisces | 01h 5.7m | 21° 28' | 5.3, 5.5 | A1, A0 | 30" | 160° | 200 ly | Neatly matched easy pair; both white | |
|
alfa
Psc
|
Pisces | 02h 02m | 02° 46' | 4.1, 5.2 | A0, A3 | 1.8" | 271° | 130 ly | Alrescha. Bright and tight pair; colors subtle | |
|
zeta
Psc
|
Pisces | 01h 13.7m | 07° 35' | 5.2, 6.2 | A7, F7 | 23" | 63° | 140 ly | a twin of psi psc; pale yellow and pale lilac | |
|
beta
Sco
|
Scorpius | 16h 5.4m | -19° 48' | 2.6, 4.5 | B1, B2 | 13.6" | 20° | 500 ly | Radiant blue-white Mizar clone | 14082004 |
|
nu
Sco AB |
Scorpius | 16h 12m | -19° 28' | 4.3,
5.3 6.6, 7.2 |
B3,
B9 B8, B9 |
1.3" 2.4" |
2° 54° |
400 ly | two tight pairs separated by 41", a lovely sight in larger scopes | 14082004 |
|
alpha
Sco
|
Scorpius | 16h 29.4m | -26° 26' | 1.0, 5.4 | M1, B2 | 2.5" | 274° | 600 ly | Ruddy Antares, elusive green companion | 14082004 06082005 |
|
delta
Ser
|
Serpens Cauda | 15h 34.8m | 10° 32' | 4.2, 5.2 | F0, F0 | 4" | 173° | 210 ly | Strinking, cozy, off-white pair | |
|
theta
Ser
|
Serpens Cauda | 18h 56.2m | 4°12' | 4.6, 4.9 | A5,A5 | 22.1" | 104° | 130 ly | easy, sparkling-white duo | |
|
6
Tri
|
Triangulum | 2h 12.4m | 30°18' | 5.3, 6.7 | G5, F6 | 3.9" | 69° | 300 ly | Neglected but pretty; gold and bluish green | |
|
xi
Uma
|
Ursa Major | 11h 18.2m | 31° 32' | 4.3, 4.8 | G0, G0 | 1.7" | 245° | 26 ly | Close binary; 60-year orbit | |
|
zeta
UMa
AB |
Ursa Major | 13h 23.9m | 54° 56' | 2.2,
3.9 2.2, 4.0 |
A2, A1 |
14" 709" |
153° 71° |
78 ly |
Mizar; historic, superb Alcor |  |
|
alfa
UMi
|
Ursa Minor | 2h 31.8m | 89°16' | 1.9-2.1, 9.0 | F7, F1 | 18" | 224° | 400 ly | Polaris, the north star | |
|
gamma
Vel
|
Vela | 8h 9.5m | -47°20' | 1.8, 4.1 | 08,B5 | 41" | 221° | 850 ly | Briliant bluish, far-south pair | |
|
STF
1669
|
Virgo | 12h 41.3m | -13°01' | 6.0, 6.1 | F5, F3 | 5.3" | 312° | 280 ly | Sweet, perfectly matched duo | |
|
gamma
Vir
|
Virgo | 12h 41.7m | -1°27' | 3.5, 3.5 | F0, F0 | 0.8" | 42° | 39 ly | Porrima; orbiting cosmig egg |
© By James Mullaney .. S&T July 2004, S&T September 2006, S&T May 2007
