Acrab (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 , Acrab is visible in the morning sky, becoming accessible around 22:16, when it reaches an altitude of 15° above your south-eastern horizon. It will then reach its highest point in the sky at 01:17, 27° above your southern horizon. It will be lost to dawn twilight around 04:13, 15° above your south-western horizon.
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|
Name
Acrab
|
Object type
Star
|
Other names
Position
| Right ascension: | 16h05m26s [3] |
| Declination: | −19°48'19" [3] |
| Constellation: | Scorpius |
| Magnitude: Variable | 2.62 (V) [3] 2.53 (BT) [2] 2.61 (VT) [2] |
| Distance: | 123.9 parsec 404.0 lightyrs [5] |
| B-V Color (mag): | -0.07 |
| Proper motion (speed): | 24.6 mas/yr[5] |
| Proper motion (pos ang): | 192.2° |
Derived quantities
| Absolute mag (V): | -2.85 |
Visibility from Cambridge
All times shown in Cambridge local time.
Events
| 15 Feb 2031 | – Lunar occultation of Beta1 Scorpii |
| 14 Mar 2031 | – Lunar occultation of Beta1 Scorpii |
| 10 Apr 2031 | – Lunar occultation of Beta1 Scorpii |
| 08 May 2031 | – Lunar occultation of Beta1 Scorpii |
| 04 Jun 2031 | – Lunar occultation of Beta1 Scorpii |
| 02 Jul 2031 | – Lunar occultation of Beta1 Scorpii |
| 29 Jul 2031 | – Lunar occultation of Beta1 Scorpii |
| 25 Aug 2031 | – Lunar occultation of Beta1 Scorpii |