σ-Cyg (Star)
Color-magnitude diagram
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
Finder chart
Click and drag the chart above to pan around the sky, or use the mouse wheel to zoom.
Click to enlarge.
From Cambridge , σ-Cyg will become visible at around 17:27 (EST), 83° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 02:16.
Begin typing the name of a town near to you, and then select the town from the list of options
which appear below.
|
Name
σ-Cyg
|
Object type
Star
|
Other names
Position
| Right ascension: | 21h17m24s [4] |
| Declination: | +39°23'40" [4] |
| Constellation: | Cygnus |
| Magnitude: Variable | 4.24 (V) [2] 4.34 (BT) [2] 4.25 (VT) [2] 4.18 (G) [4] 4.25 (BP) [4] 4.00 (RP) [4] |
| Distance: | 853.9 parsec 2783.8 lightyrs [4] |
| B-V Color (mag): | 0.08 |
| Proper motion (speed): | 3.6 mas/yr[4] |
| Proper motion (pos ang): | 176.9° |
Derived quantities
| Absolute mag (V): | -5.42 |
Visibility from Cambridge
All times shown in Cambridge local time.