PWs fotografisches Doppelstern Projekt / PWs Photographic Doublestar Project

40-Omicron2 Eri

40-Omicron2 Eri


WDS04153-0739
RA04 15 17
Dec-07 38 42
Sternbild/ConstellationEri, Eridanus / Eridanus / River      Foto/Photo 40-Omicron2 Eri
Bmkg./Note-



Komponenten
Components
Abstand "
Separation "
Mag 1 Mag 2 Positionswinkel
Position angle
Aa
Ab
A-BC
Ba
Bb
BC
77,9
211
83
147
279,5
8,9
4,43
4,43
4,43
9,7
9,7
9,52
12,2
12,5
9,7
12,2
12,5
11,17
97
8
104
196
356
337



WDS notes: STF 518 Omicron (2) Eri = LDS 114. Proper motion of A -2224 -3423. BC: P = 252yr., a = 6.94", motion retrograde. B is a white dwarf, and C is a flare star, DY Eri, and a strong X-ray source. Omicron (1) Eri at 83" is physical, and is a Delta Scuti star showing cor


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