B¹-Sgr (Star)
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 , b¹-Sgr is not observable – it will reach its highest point in the sky during daytime and is no higher than 17° above the horizon at dusk.
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|
Name
B¹-Sgr
|
Object type
Star
|
Position
| Right ascension: | 19h56m56s [3] |
| Declination: | −27°10'11" [3] |
| Constellation: | Sagittarius |
| Magnitude: | 4.53 (V) [3] 6.44 (BT) [2] 4.70 (VT) [2] |
| Distance: | 255.1 parsec 831.6 lightyrs [5] |
| B-V Color (mag): | 1.45 |
| Proper motion (speed): | 18.7 mas/yr[5] |
| Proper motion (pos ang): | 146.0° |
Derived quantities
| Absolute mag (V): | -2.50 |
Visibility from Cambridge
All times shown in Cambridge local time.