Segin
- Proper Name:
- Segin
- Bayer:
- ε Cas
- Bayer Long
- Epsilon Cassiopeiae
- Flamsteed:
- 45 Cassiopeiae
- SAO:
- 12031
- HR:
- 542
- HD:
- 11415
- DM:
- BD+62 320
- GC:
- 2289
- Right Ascention:
- 1h 54m 23.710s
- Declination:
- +63° 40' 12.27"
- Magnitude:
- 3.4
- Spectral Type:
- B3III
- Constellation:
- Cassiopeia
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