The star HR 7640
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 Washington , HR 7640 is visible in the dawn sky, rising at 00:01 (MDT) and reaching an altitude of 64° above the eastern horizon before fading from view as dawn breaks around 05:52.
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|
Name
HR 7640
|
Object Type
Star
|
Position
| Constellation: | Cygnus |
| Magnitude: | 5.50 (V) [2] 5.43 (BT) [2] 5.49 (VT) [2] 5.47 (G) [4] 5.47 (BP) [4] 5.53 (RP) [4] |
| B-V Color (mag): | -0.06 |
| Right ascension: | 19h58m38s [4] |
| Declination: | +30°59'01" [4] |
| Distance: | 128.7 parsec 419.4 lightyrs [4] |
| Proper motion (speed): | 38.2 mas/yr [4] |
| Proper motion (pos ang): | 87.6° |
Derived Quantities
| Absolute mag (V): | -0.05 |
Visibility from Washington
All times shown in Washington local time.