O-Ser (Star)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From South El Monte , O-Ser is visible in the dawn sky, rising at 03:18 (PST) – 3 hours and 29 minutes before the Sun – and reaching an altitude of 26° above the south-eastern horizon before fading from view as dawn breaks at around 05:45.
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Name
O-Ser
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Object type
Star
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Other names
Position
| Right ascension: | 17h41m24s [4] |
| Declination: | −12°52'31" [4] |
| Constellation: | Serpens Cauda |
| Magnitude: Variable | 4.23 (V) [2] 4.34 (BT) [2] 4.24 (VT) [2] 4.21 (G) [4] 4.26 (BP) [4] 4.12 (RP) [4] |
| Distance: | 48.9 parsec 159.3 lightyrs [4] |
| B-V Color (mag): | 0.08 |
| Proper motion (speed): | 91.2 mas/yr[4] |
| Proper motion (pos ang): | 232.6° |
Derived quantities
| Absolute mag (V): | 0.79 |
Sources