η-Ser (Star)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From Cambridge , η-Ser is visible in the dawn sky, rising at 00:25 (EDT) and reaching an altitude of 42° above the southern horizon before fading from view as dawn breaks at around 05:16.
|
Name
η-Ser
|
Object type
Star
|
Other names
Position
| Right ascension: | 18h21m18s [4] |
| Declination: | −02°54'06" [4] |
| Constellation: | Serpens Cauda |
| Magnitude: Variable | 3.24 (V) [2] 4.43 (BT) [2] 3.34 (VT) [2] 2.99 (G) [4] 3.71 (BP) [4] 2.47 (RP) [4] |
| Distance: | 19.1 parsec 62.2 lightyrs [4] |
| B-V Color (mag): | 0.93 |
| Proper motion (speed): | 890.2 mas/yr[4] |
| Proper motion (pos ang): | 218.1° |
Derived quantities
| Absolute mag (V): | 1.84 |
Sources