The star η-Ser
Color-magnitude diagram
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
Finder chart
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From Cambridge , η-Ser is difficult to observe as it will appear no higher than 17° above the horizon. It is visible in the dawn sky, rising at 04:17 (EST) – 2 hours and 54 minutes before the Sun – and reaching an altitude of 17° above the eastern horizon before fading from view as dawn breaks around 06:01.
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|
Name
η-Ser
|
Object Type
Star
|
Position
| Constellation: | Serpens Cauda |
| Magnitude: Variable | 3.24 (V) [1] 4.43 (BT) [1] 3.34 (VT) [1] 2.88 (G) [2] 3.67 (BP) [2] 2.43 (RP) [2] |
| B-V Color (mag): | 0.93 |
| Right ascension: | 18h21m18s [2] |
| Declination: | -02°54'06" [2] |
| Distance: | 17.8 parsec 58.2 lightyrs [2] |
| Proper motion (speed): | 888.9 mas/yr [2] |
| Proper motion (pos ang): | 218.2° |
Derived Quantities
| Absolute mag (V): | 1.98 |
Visibility from Cambridge
All times shown in Cambridge local time.