Rho Ophiuchi Nebula (IC 4604)
Rho Ophiuchi Nebula (IC 4604) is a reflection nebula in the constellation Ophiuchus, magnitude 5.1 (blue), 1.0° × 25′ across.
A reflection nebula in Ophiuchus, about 60′ × 25′. Its catalogued magnitude, 5.1 (B-band), is that of the star lighting it; the nebula itself is much fainter.
When and where to see it
It is best placed in the evening sky around June, when it crosses the meridian at about 10 pm local time (around midnight in May). It can be seen from everywhere south of 67°N and never sets south of 67°S.
At its highest it stands 17° up from 50°N, 32° up from 35°N, 67° up from the equator, 78° up from 35°S.
Facts
- Type
- Reflection nebula
- Constellation
- Ophiuchus
- Designations
- IC 4604
- Magnitude
- 5.1 (blue)
- Apparent size
- 1.0° × 25′
- Position
- RA 16h 25.5m, Dec −23° 26′ (J2000)
Open AstroPilot to see when Rho Ophiuchi Nebula (IC 4604) is highest tonight from your location, how easy it is with your telescope or binoculars, and an eyepiece view.