Porrima
29Gam Vir
Porrima is a F-type (Yellow-White) star located in the constellation Virgo. It carries the designation 29Gam Vir.
Porrima lies approximately 38.1 light-years from Earth, placing it within the Sun's local stellar neighborhood. This relatively short cosmic distance means the light reaching us today departed the star only about 38 years ago.
Porrima is classified as a spectral class F star (F-type (Yellow-White)) on the Harvard spectral classification system.
At an apparent magnitude of +2.74, Porrima is visible to the naked eye under reasonably clear skies. It may require dark-sky conditions to be seen comfortably in areas with significant light pollution. Observers will note its white hue, which corresponds to a B-V color index of +0.368.
Đặc tính vật lý
| Phân Loại Quang Phổ | Class F — F-type (Yellow-White) |
| Chỉ số màu (B−V) | 0,368 |
Quan sát
| Cấp Sao Biểu Kiến | +2.74 |
| Cấp Sao Tuyệt Đối | 2,40 |
| Khoảng Cách | 38.1 ly |
| Chòm Sao | Virgo |
Vị trí
| Xích kinh | 12h 41,66m |
| Xích vĩ | -1° 26,96′ |