Eta Persei (Miram)
Eta Persei (Miram) is a double star in the constellation Perseus, magnitude 3.8.
A cool supergiant with a faint bluish companion. Its components (magnitudes 3.8 and 8.5; spectral types M3 I (orange-red) and B9 V (blue-white)) lie 27.1″ apart at PA 301° (measured 2024).
When and where to see it
It is best placed in the evening sky around December, when it crosses the meridian at about 10 pm local time (around midnight in November). It can be seen from everywhere north of 34°S and never sets north of 34°N.
At its highest it stands 84° up from 50°N, 69° up from 35°N, 34° up from the equator, below the horizon from 35°S.
Facts
- Type
- Double star
- Constellation
- Perseus
- Designations
- Miram, η Per, 15 Per, 15 Persei, STF 307, HIP 13268
- Magnitude
- 3.8
- Position
- RA 2h 50.7m, Dec +55° 54′ (J2000)
Open AstroPilot to see when Eta Persei (Miram) is highest tonight from your location, how easy it is with your telescope or binoculars, and an eyepiece view.