Multiple Stars of Delphinus - The Night Sky Atlas

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Multiple star listings for each constellation appear below, selected from the Bright Star Catalog 5th edition. All binary and multiple star entries are listed with selected data. Each star has a link to its atlas location via its Harvard Revised (HR) number.

AND
ANT
APS
AQL
AQR
ARA
ARI
AUR
BOO
CAE
CAM
CAP
CAR
CAS
CEN
CEP
CET
CHA
CIR
CMA
CMI
CNC
COL
COM
CRA
CRB
CRT
CRU
CRV
CVN
CYG
DEL
DOR
DRA
EQU
ERI
FOR
GEM
GRU
HER
HOR
HYA
HYI
IND
LAC
LEO
LEP
LIB
LMI
LUP
LYN
LYR
MEN
MIC
MON
MUS
NOR
OCT
OPH
ORI
PAV
PEG
PER
PHE
PIC
PSA
PSC
PUP
PYX
RET
SCL
SCO
SCT
SER
SEX
SGE
SGR
TAU
TEL
TRA
TRI
TUC
UMA
UMI
VEL
VIR
VOL
VUL
 

 
Delphinus
The Dolphin
Visible in March before dawn, to November after dusk, best in July.

HR RA
hours
J2000
DEC
degrees
J2000
RA
arcsec
/year
DEC
arcsec
/year
Flam-
steed
Bayer Visual
Mag.
Dist.
Light
Years
Related
HR
Entry
Compo-
nents
Count
Max
Mag
Diff.
Separation
arcsec
Double and multiple star remarks from notes
7836 20h 30m 18.0s +10° 53´ 45" +0.021" +0.003" 1   6.08   3 1.8 0.9" AB binary.
7839 20h 30m 58.1s +20° 36´ 21" +0.093" +0.045"   6.18     3 4.0 11.8"  
7840 20h 31m 13.0s +11° 15´ 38" 0.000" -0.003"   7.11   4 0.3 16.7" BC 7.5, 7.6v, Am, measured sep. 0.108" on 1985.5 by speckle interferometry, vsini 63k/s. A, optical, with companion, measured sep. 1985.5 Aa = 0.341" by speckle interferometry.
7882 20h 37m 33.0s +14° 35´ 43" +0.113" -0.033" 6 Beta 3.63 116   5 1.0 0.6" AB 4.0 F5IV, 4.9 F5IV, 26.65y, a = 0.475" or 26.60y, a = 0.480". Speckle interferometry gives sep. 0.58" and with SB data leads to masses 2.2 and 1.8 solar. Combined mag., colors. Components C-E optical.
7896 20h 39m 07.8s +10° 05´ 10" +0.321" +0.023" 7 Kappa 5.05 125   3 4.8 203.6" AB optical. B, 11.8v at 29". AC CPM, C is K2IV.
7899 20h 39m 05.0s +15° 50´ 17" +0.001" -0.017"   5.97   5 5.6 22.5" AB optical. B, 13v at 7".
7906 20h 39m 38.3s +15° 54´ 43" +0.066" -0.002" 9 Alpha 3.77 407   6 7.5 43.4" Companions optical.
7907 20h 39m 51.8s +11° 14´ 59" +0.060" +0.088"   6.42     2 4.0 191.9"  
7914 20h 40m 45.2s +19° 56´ 07" +0.122" +0.304"   6.45 65   2 5.1 93.7"  
7947 20h 46m 38.7s +16° 07´ 28" -0.030" -0.191" 12 Gamma 1 5.14 125   2 1.0 9.8" 3249y, a = 13.813". Binary with HR 7948.
7948 20h 46m 39.5s +16° 07´ 27" -0.032" -0.197" 12 Gamma 2 4.27 125   2 1.0 9.8" See HR 7947.
7953 20h 47m 48.3s +06° 00´ 30" +0.010" -0.006" 13   5.58 1629   2 3.6 1.4"  
7973 20h 49m 37.8s +12° 32´ 43" +0.057" +0.098" 15   5.98 108   4 5.2 108.0"  
7975 20h 49m 59.1s +05° 32´ 41" +0.040" +0.006"   6.21     2 2.5 79.9"  
8010 20h 55m 40.7s +04° 31´ 58" +0.070" +0.010"   6.05 271   2 1.4 2.1" Binary.
8012 20h 55m 38.6s +12° 34´ 07" +0.040" +0.018" 16   5.58   2 6.5 36.0" Optical.
8030 20h 58m 25.9s +10° 50´ 21" -0.051" -0.036" 18   5.48     3 4.6 198.2"  
8037 20h 59m 50.8s +16° 49´ 27" +0.041" -0.014"   6.66     2 2.7 70.7"  
8044 21h 00m 27.7s +19° 19´ 46" -0.016" -0.063"   5.65 326   2 3.9 46.6"  

The night sky atlas creates images of any part of the night sky, allowing easy location of any object. Detailed chart images show all stars visible to the naked eye, the constellations, Messier objects, and names of the brightest stars. Data sources: Bright Star Catalog from the Astronomical Data Center, star names list from Steven Gibson, all-sky Milky Way image by Axel Mellinger. The data used in this product, in whole or in part, is used with permission of The NGC/IC Project LLC. Many thanks go to those who maintain and make available their astronomy datasets without which this sky atlas would not have been possible. Permission for any use of these chart images is granted, provided that the original website address remains visible on all images. Enjoy!