PWs fotografisches Doppelstern Projekt / PWs Photographic Doublestar Project

STF2348, Dra

STF2348, Dra

WDS18339+5221
RA18 33 56
Dec+52 21 12
Sternbild/ConstellationDra, Draco / Drache / Dragon      Foto folgt/Photo follows
Bmkg./Note-

Komponenten
Components
Abstand "
Separation "
Mag 1 Mag 2 Positionswinkel
Position angle
AB
AB-C
AB-D
0,3
25,3
93
6,2
5,5
6,2
6,4
8,65
11,9
118
271
339

WDS notes: A 1377 P = 191yr., a = 0.26", motion direct. C is physical. Proper motion of C -023 -009. Mt. Wilson spectral classes A is G5, C is B8n.


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