Cujam
star · Hercules · 4.6ᵐ
Blue-white star in Hercules. It lies about 250 light years from Earth. In visible light it shines roughly 74 times as bright as the Sun.
Notable facts
The light you see today left Cujam around the year 1776.
About 4 times brighter than the faintest star visible to the naked eye.
In brief
Which constellation is Cujam in?
Cujam lies in Hercules.
Is Cujam visible to the naked eye?
4.6ᵐ — visible to the naked eye (under dark skies).
When is the best time to observe Cujam?
Best observed in May.
Data
- RA / Dec (J2000)
- 16h 25m · +14° 02′
- Type
- star
- Constellation
- Hercules
- How to observe
- 4.6ᵐ — visible to the naked eye (under dark skies)
- Spectral class
- B9p Cr — blue-white star
- Absolute magnitude
- 0.1ᵐ
- Luminosity (visual)
- ≈74 × the Sun
- Distance
- ~250 light years
- Designation
- HIP 80463
Observing tip
Stars stay points at any magnification: aim your telescope for colour, brightness and companions, not detail.
Altitude above the horizon by latitude
| Latitude | Maximum altitude | Rise azimuth |
|---|---|---|
| +60° | 44° | 61° |
| +55° | 49° | 65° |
| +45° | 59° | 70° |
| +30° | 74° | 74° |
| 0° | 76° | 76° |
| −35° | 41° | 73° |
Geometric altitude at upper culmination, atmospheric refraction not included. Positive latitudes are in the northern hemisphere.
Culmination time by month
| Month | Culmination |
|---|---|
| January | 08:40 |
| February | 06:33 |
| March | 04:47 |
| April | 02:54 |
| May | 01:00 |
| June | 22:53 |
| July | 20:50 |
| August | 18:49 |
| September | 16:56 |
| October | 15:07 |
| November | 13:06 |
| December | 10:58 |
Upper culmination in local solar time — no time-zone or daylight-saving correction applied.