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Proper NameNone
Bayer DesignationDelta Serpentis
Flamsteed Number13 Serpentis
HR (BSC)5789 (A), 5788 (B)
HD138918 (A), 138917 (B)
ConstellationSerpens
Right Ascension15h 34m 48s (A), 15h 34m 48s (B)
Declination+10° 32' 20" (A), +10° 32' 16" (B)
Distance228 light years
70 parsecs
MagnitudeApparent: +4.1 (A), +5.1 (B)
Absolute: -0.1 (A), +0.9 (B)
Spectral ClassF0IV Bright Yellow Subgiant (A), F0IV Bright Yellow Subgiant (B)
Optimum VisibilityMay / June

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